2018年6月英语六级考试真题试卷附答案第2套
2018年6月英语六级考试真题试卷附答案(完整版第2套)Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write an essay on the importance of building trust between teachers and students. You can cite examples to illustrate your views. You should write at least 150 words but no more than 200 words.________________________________________________________________________________________________________________________________________________________________________________________________________________________Part Ⅰ WritingThe Importance of Building Trust Between Teachers and StudentsA good relationship between a teacher and a student can have a major influence on a kid's development, and trust is crucial and indispensable不可或缺的in maintaining the relationship.To begin with, only when a student believes in his or her teacher is he or she willing to learn from the teacher or look to the teacher for guidance and support. In reality, too many students are weary of study and even drop out of school only because they dislike their teachers, which may transform their whole life. Besides, a teacher who has the full trust of his or her students is more motivated to help them improve the consciousness意识、知觉、觉悟and initiative主动、主动性、首创精神of learning, which in turn依次、转而、轮流benefits the students most. However, the credibility公信力between teachers and students is not something that can be built in a day. On the one hand, teachers should comprehend the students' actual demands and offer timely help. On the other hand, students should always be respectful to their teachers.All in all, trust in a teacher-student relationship is a must to achieve effective teaching an learning.Part II Listening Comprehension (30 minutes)Section ADirections: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 to 4 are based on the conversation you have just heard.1. A) She advocates animal protection.B) She sells a special kind of coffee.C) She is going to start a café chain.D) She is the owner of a special café.2. A) They bear具有、承受、忍受a lot of similarities相似性、相同点.B) They are a profitable business sector.C) They cater to different customers.D) They help take care of customers' pets.3. A) By giving them regular cleaning and injections.B) By selecting breeds that are tame and peaceful.C) By placing them at a safe distance from customers.D) By briefing customers on how to get along with them.4. A) They want to learn about rabbits.B) They like to bring in their children.C) They love the animals in her café.D) They give her café favorite reviews.Questions 5 to 8 are based on the conversation you have just heard.5. A) It contains too many additives.B) It lacks the essential vitamins.C) It can cause obesity.D) It is mostly garbage.6. A) Its fancy design.B) TV commercials.C) Its taste and texture.D) Peer influence.7. A) Investing heavily in the production of sweet foods.B) Marketing their products with ordinary ingredients.C) Trying to trick children into buying their products.D) Offering children more varieties to choose from.8. A) They hardly ate vegetables.B) They seldom had junk food垃圾食品、没有营养的食品.C) They favored chocolate-coated sweets.D) They liked the food advertised on TV.Section BDirections: In this section, you will hear two passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 9 to 11 are based on the passage you have just heard.9. A) Stretches of farmland.B) Typical Egyptian animal farms.C) Tombs of ancient rulers.D) Ruins left by devastating floods.10. A) It provides habitats for more primitive tribes.B) It is hardly associated with great civilizations.C) It has not yet been fully explored and exploited.D) It gathers water from many tropical rain forests.11. A) It carries about one fifth of the world's fresh water.B) It has numerous human settlements along its banks.C) It is second only to the Mississippi River in width.D) It is as long as the Nile and the Yangtze combined.Questions 12 to 15 are based on the passage you have just heard.12. A) Living a life in the fast lane leads to success.B) We are always in a rush to do various things.C) The search for tranquility has become a trend.D) All of us actually yearn for a slow and calm life.13. A) She had trouble balancing family and work.B) She enjoyed the various social events.C) She was accustomed to tight schedules.D) She spent all her leisure time writing books.14. A) The possibility of ruining her family.B) Becoming aware of her declining health.C) The fatigue from living a fast-paced life.D) Reading a book about slowing down.15. A) She started to follow the cultural norms.B) She came to enjoy doing everyday tasks.C) She learned to use more polite expressions.D) She stopped using to-do lists and calendars.Section CDirections: In this section, you will hear three recordings of lectures or talks followed by three or four questions. The recordings will be played only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through centre.Questions 16 to 18 are based on the recording you have just heard.16. A) They will root out native species altogether.B) They contribute to a region's biodiversity.C) They pose a threat to构成威胁the local ecosystem.D) They will crossbreed with native species.17. A) Their classifications are meaningful.B) Their interactions are hard to define.C) Their definitions are changeable.D) Their distinctions区别、特质、区分are artificial人为的、人造的.18. A) Only a few of them cause problems to native species.B) They may turn out to benefit the local environment.C) Few of them can survive in their new habitats.D) Only 10 percent of them can be naturalized.Questions 19 to 21 are based on the recording you have just heard.19. A) Respect their traditional culture.B) Attend their business seminars.C) Research their specific demands.D) Adopt the right business strategies.20. A) Showing them your palm.B) Giving them gifts of great value.C) Drinking alcohol on certain days of a month.D) Clicking your fingers loudly in their presence.21. A) They are very easy to satisfy.B) They have a strong sense of worth.C) They tend to be friendly and enthusiastic.D) They have a break休息一下from 2:00 to 5:30 p.m.Questions 22 to 25 are based on the recording you have just heard.22. A) He completely changed the company's culture.B) He collected paintings by world-famous artists.C) He took over the sales department of Reader's Digest.D) He had the company's boardroom extensively renovated.23. A) It should be sold at a reasonable price.B) Its articles should be short and inspiring.C) It should be published in the world's leading languages.D) Its articles should entertain blue- and pink-collar workers.24. A) He knew how to make the magazine profitable.B) He served as a church minister for many years.C) He suffered many setbacks and misfortunes in his life.D) He treated the employees like members of his family.25. A) It carried many more advertisements.B) George Grune joined it as an ad salesman.C) Several hundred of its employees got fired.D) Its subscriptions increased considerably.Part III Reading Comprehension (40 minutes)Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.Did Sarah Josepha Hale write "Mary's Little Lamb羔羊," the eternal nursery托儿所、幼儿园rhyme (儿歌) about a girl named Mary with a stubborn倔强的、顽固的lamb? This is still disputed有争议的, but it's clear that the woman K26 reputed挂名的、号称的 for writing it was one of America's mostfascinating C27characters人物、特性、描述 . In honor of为庆祝、为纪念the poem's publication on May 24, 1830, here's more about the M28supposed假定的、期望的、推定、据说的 author's life.Hale wasn't just a writer, she was also a E29fierce凶狠的、凶猛的、激烈的 social advocate拥护者、倡导者、辩护者、辩护律师, and she was particularly H30obsessed着迷、痴迷 with an ideal New England, which she associated with abundant Thanksgiving meals that she claimed had "a deep moral influence." She began a nationwide A31campaign活动、战役、运动 to have a national holiday declared that would bring familiestogether while celebrating the N32traditional festivals. In 1863, after 17 years of advocacy倡导、鼓吹、主张、拥护including letters to five presidents, Hale got it. President Abraham Lincoln, during the Civil War 南北战争, issued a I33proclamation宣言书、声明、公告 setting aside the last Thursday in November for the holiday.The true authorship作者身份、原创作者of "Mary's Little Lamb" is disputed有争议的. According to the New England Historical Society, Hale wrote only part of the poem, but claimed authorship. Regardless of the author, it seems that the poem was F34inspired受启发的、鼓舞的 by a real event. When young Mary Sawyer was followed to school by a lamb in 1816, it caused some problems. A bystander named John Roulstone wrote a poem about the event, then, at some point, Hale herself seems to have helped write it. However, if a 1916 piece by her great-niece is to be trusted, Hale claimed for the L35rest of her life that "some other people pretended that someone else wrote the poem".A) campaign B) career C) characters D) features E) fierce F) inspired G) latter H) obsessed I) proclamation J) rectified K) reputed L) rest M) supposed N) traditional O) versatileSection BDirections: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.Grow Plants Without WaterA) Ever since humanity began to farm our own food, we’ve faced the unpredictable rain that is both friend and enemy. It comes and goes without much warning, and a field of lush (茂盛的) leafy greens one year can dry up and blow away the next. Food security and fortunes depend on sufficient rain, and nowhere more so than in Africa, where 96% of farmland depends on rain instead of the irrigation common in more developed places. It has consequences: South Africa's ongoing drought—the worst in three decades—will cost at least a quarter of its corn crop this year.B) Biologist Jill Farrant of the University of Cape Town in South Africa says that nature has plenty of answers for people who want to grow crops in places with unpredictable rainfall. She is hard at work finding a way to take traits from rare wild plants that adapt to extreme dry weather and use them in food crops. As the earth's climate changes and rainfall becomes even less predictable in some places, those answers will grow even more valuable. "The type of farming I'm aiming for is literally so that people can survive as it's going to get more and more dry," Farrant says.C) Extreme conditions produce extremely tough plants. In the rusty red deserts of South Africa,steep-sided rocky hills called inselbergs rear up from the plains like the bones of the earth. The hills are remnants of an earlier geological era, scraped bare of most soil and exposed to the elements. Yet on these and similar formations in deserts around the world, a few fierce plants have adapted to endure under ever-changing conditions.D) Farrant calls them resurrection plants (复苏植物). During months without water under a harsh sun, they wither, shrink and contract until they look like a pile of dead gray leaves. But rainfall can revive them in a matter of hours. Her time-lapse (间歇性拍摄的) videos of the revivals look like someone playing a tape of the plant's death in reverse.E) The big difference between "drought-tolerant" plants and these tough plants: metabolism. Many different kinds of plants have developed tactics to weather dry spells. Some plants store reserves of water to see them through a drought; others send roots deep down to subsurface water supplies. Butonce these plants use up their stored reserve or tap out the underground supply, they cease growing and start to die. They may be able to handle a drought of some length, and many people use the term "drought tolerant" to describe such plants, but they never actually stop needing to consume water, so Farrant prefers to call them drought resistant.F) Resurrection plants, defined as those capable of recovering from holding less than 0.1 grams of water per gram of dry mass, are different. They lack water-storing structures, and their existence on rock faces prevents them from tapping groundwater, so they have instead developed the ability to change their metabolism. When they detect an extended dry period, they divert their metabolisms, producing sugars and certain stress-associated proteins and other materials in their tissues. As the plant dries, these resources take on first the properties of honey, then rubber, and finally enter a glass-like state that is "the most stable state that the plant can maintain," Farrant says. That slows the plant's metabolism and protects its dried-out tissues. The plants also change shape, shrinking to minimize the surface area through which their remaining water might evaporate. They can recover from months and years without water, depending on the species.G) What else can do this dry-out-and-revive trick? Seeds—almost all of them. At the start of her career, Farrant studied "recalcitrant seeds (顽拗性种子)," such as avocados, coffee and lychee. While tasty, such seeds are delicate—they cannot bud and grow if they dry out (as you may know if you've ever tried to grow a tree from an avocado pit). In the seed world, that makes them rare, because most seeds from flowering plants are quite robust. Most seeds can wait out the dry, unwelcoming seasons until conditions are right and they sprout (发芽). Yet once they start growing, such plants seem not to retain the ability to hit the pause button on metabolism in their stems or leaves.H) After completing her Ph. D. on seeds, Farrant began investigating whether it might be possible to isolate the properties that make most seeds so resilient (迅速恢复活力的) and transfer them to other plant tissues. What Farrant and others have found over the past two decades is that there are many genes involved in resurrection plants' response to dryness. Many of them are the same that regulate how seeds become dryness-tolerant while still attached to their parent plants. Now they are trying to figure out what molecular signaling processes activate those seed-building genes in resurrection plants—and how to reproduce them in crops. "Most genes are regulated by a master set of genes," Farrant says. "We're looking at gene promoters and what would be their master switch."I) Once Farrant and her colleagues feel they have a better sense of which switches to throw, they will have to find the best way to do so in useful crops. "I'm trying three methods of breeding," Farrant says: conventional, genetic modification and gene editing. She says she is aware that plenty of people do not want to eat genetically modified crops, but she is pushing ahead with every available tool until one works. Farmers and consumers alike can choose whether or not to use whichever version prevails："I'm giving people an option."J) Farrant and others in the resurrection business got together last year to discuss the best species of resurrection plant to use as a lab model. Just like medical researchers use rats to test ideas for human medical treatments, botanists use plants that are relatively easy to grow in a lab or greenhouse setting to test their ideas for related species. The Queensland rock violet is one of the best studied resurrection plants so far, with a draft genome (基因图谱) published last year by a Chinese team. Also last year, Farrant and colleagues published a detailed molecular study of another candidate, Xerophyta viscosa, a tough-as-nail South African plant with lily-like flowers, and she says that a genome is on the way. One or both of these models will help researchers test their ideas—so far mostly done in the lab—on test plots. K) Understanding the basic science first is key. There are good reasons why crop plants do not usedryness defenses already. For instance, there's a high energy cost in switching from a regular metabolism to an almost-no-water metabolism. It will also be necessary to understand what sort of yield farmers might expect and to establish the plant's safety. "The yield is never going to be high," Farrant says, so these plants will be targeted not at Iowa farmers trying to squeeze more cash out of high-yield fields, but subsistence farmers who need help to survive a drought like the present one in South Africa. "My vision is for the subsistence farmer," Farrant says. "I'm targeting crops that are of African value."36. There are a couple of plants tough and adaptable enough to survive on bare rocky hills and in deserts.C37. Farrant is trying to isolate genes in resurrection plants and reproduce them in crops.H38. Farmers in South Africa are more at the mercy of nature, especially inconsistent rainfall.A39. Resurrection crops are most likely to be the choice of subsistence farmers.K40. Even though many plants have developed various tactics to cope with dry weather, they cannot survive a prolonged drought.E41. Despite consumer resistance, researchers are pushing ahead with genetic modification of crops.I42. Most seeds can pull through dry spells and begin growing when conditions are ripe, but once this process starts, it cannot be held back.G43. Farrant is working hard to cultivate food crops that can survive extreme dryness by studying the traits of rare wild plants.B44. By adjusting their metabolism, resurrection plants can recover from an extended period of drought.F45. Resurrection plants can come back to life in a short time after a rainfall.DSection CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.Human memory is notoriously unreliable. Even people with the sharpest facial-recognition skills can only remember so much.It's tough to quantify how good a person is at remembering. No one really knows how many different faces someone can recall, for example, but various estimates tend to hover in the thousands—based on the number of acquaintances a person might have.Machines aren't limited this way. Give the right computer a massive database of faces, and it can process what it sees—then recognize a face it's told to find—with remarkable speed and precision. This skill is what supports the enormous promise of facial-recognition software in the 21st century. It's also what makes contemporary surveillance systems so scary.The thing is, machines still have limitations when it comes to facial recognition. And scientists are only just beginning to understand what those constraints are. To begin to figure out how computers are struggling, researchers at the University of Washington created a massive database of faces—they call it MegaFace—and tested a variety of facial-recognition algorithms (算法) as they scaled up in complexity. The idea was to test the machines on a database that included up to 1 million different images of nearly 700,000 different people—and not just a large database featuring a relatively small number of different faces, more consistent with what's been used in other research.As the databases grew, machine accuracy dipped across the board. Algorithms that were right 95% of the time when they were dealing with a 13,000-image database, for example, were accurate about 70% of the time when confronted with 1 million images. That's still pretty good, says one of the researchers, Ira Kemelmacher-Shlizerman. "Much better than we expected," she said.Machines also had difficulty adjusting for people who look a lot alike—either doppelgangers (长相极相似的人), whom the machine would have trouble identifying as two separate people, or the same person who appeared in different photos at different ages or in different lighting, whom the machine would incorrectly view as separate people."Once we scale up, algorithms must be sensitive to tiny changes in identities and at the same time invariant to lighting, pose, age," Kemelmacher-Shlizerman said.The trouble is, for many of the researchers who'd like to design systems to address these challenges, massive datasets for experimentation just don't exist—at least, not in formats that are accessible to academic researchers. Training sets like the ones Google and Facebook have are private. There are no public databases that contain millions of faces. MegaFace's creators say it's the largest publicly available facial-recognition dataset out there."An ultimate face recognition algorithm should perform with billions of people in a dataset," the researchers wrote.46. Compared with human memory, machines can ________.A) identify human faces more efficientlyB) tell a friend from a mere acquaintanceC) store an unlimited number of human facesD) perceive images invisible to the human eye47. Why did researchers create MegaFace?A) To enlarge the volume of the facial-recognition database.B) To increase the variety of facial-recognition software.C) To understand computers' problems with facial面部的recognition识别.D) To reduce the complexity of facial-recognition algorithms.48. What does the passage say about machine accuracy准确性?A) It falls short of researchers' expectations.B) It improves with added computing power.C) It varies greatly with different algorithms.D) It decreases as the database数据库size increases.49. What is said to be a shortcoming-of facial-recognition machines?A) They cannot easily tell apart分别、区别people with near-identical同一的、完全相同的appearances.B) They have difficulty identifying changes in facial expressions.C) They are not sensitive to minute changes in people's mood.D) They have problems distinguishing people of the same age.50. What is the difficulty confronting面对、对抗researchers of facial-recognition machines?A) No computer is yet able to handle huge datasets of human faces.B) There do not exist public databases with sufficient足够的face samples样本、采样.C) There are no appropriate algorithms to process the face samples.D) They have trouble converting face datasets into the right format.Passage TwoQuestions 51 to 55 are based on the following passage.There're currently 21.5 million students in America, and many will be funding their college on borrowed money. Given that there's now over $1.3 trillion in student loans on the books, it's pretty clear that many students are far from sensible. The average student's debt upon graduation now approaches $40,000, and as college becomes ever more expensive, calls to make it "free" are multiplying. Even Hillary Clinton says that when it comes to college, "Costs won't be a barrier."But the only way college could be free is if the faculty and staff donated their time, the buildings required no maintenance, and campuses required no utilities. As long as it's impossible to produce something from nothing, costs are absolutely a barrier.The actual question we debate is who should pay for people to go to college. If taxpayers are to bear the cost of forgiving student loans, shouldn't they have a say in how their money is used?At least taxpayers should be able to decide what students will study on the public dime. If we're going to force taxpayers to foot the bill for college degrees, students should only study those subjects that're of greatest benefit to taxpayers. After all, students making their own choices in this respect is what caused the problem in the first place. We simply don't need more poetry, gender studies, or sociology majors. How do we know which subjects benefit society? Easy.Average starting salaries give a clear indication of what type of training society needs its new workers to have. Certainly, there're benefits to a college major beyond the job a student can perform. But if we're talking about the benefits to society, the only thing that matters is what the major enables the student to produce for society. And the value of what the student can produce is reflected in the wage employers are willing to pay the student to produce it.A low wage for elementary school teachers, however, doesn't mean elementary education isn't important. It simply means there're too many elementary school teachers already.Meanwhile, there're few who're willing and able to perform jobs requiring a petroleum engineering major, so the value of one more of those people is very high.So we can have taxpayers pick up students' tuition in exchange for dictating what those students will study. Or we can allow students both to choose their majors and pay for their education themselves. But in the end, one of two things is true:Either a college major is worth its cost or it isn't. If yes, taxpayer financing isn't needed. If not, taxpayer financing isn't desirable. Either way, taxpayers have no business paying for students' college education.51. What does the author think of college students funding their education through loans借贷?A) They only expect to get huge returns.B) They are acting in an irrational非理性的way.C) They benefit at taxpayers' expense.D) They will regret doing so someday.52. In the author's opinion, free college education is ________.A) impractical 不切实际的、不现实的B) unsustainableC) a goal to strive forD) a way to social equality53. What should students do if taxpayers纳税人are to bear their college costs?A) Work even harder to repay society.B) Choose their subjects more carefully.C) Choose majors专业、主修that will serve society's practical needs.D) Allow taxpayers to participate in college administration.。
2018年6月英语四级考试真题答案 ( 第2套)
2018年6月四级部分真题参考答案(完整版)Part Ⅰ WritingThe Importance of Writing Ability and How to Develop ItAs the most productive and communicative way to express ourselves, writing is attached great importance in all ages. Whether we want to improve our writing skills as a creative writer or simply perfect our skills for schoolwork, we can take some steps to learn how to be a better writer.Firstly, in order to make our writing creative and imaginative, brainstorming is one of the key elements to build up a unique topic. Don't hesitate to take down all the ideas that come into our mind. Secondly, a good development of our writing is based on a clear structure or paragraph organization. Even a simple outline will help us see the big picture and save us hours of rewriting. Finally, diversity of vocabulary and grammar used in writing is highly recommended for the reason that one of the most common manifestations of bad writing is overuse or reuse of simple language.To sum up, we should take practice and expand our knowledge to become a great writer. With enough hard work and scientific techniques, we will amaze not only ourselves but also anybody else.Part Ⅱ Listening Comprehension1. B) Scared.2. D) It was covered with large scales.3. A) A study of the fast-food service.4. C) Increased variety of products.5. C) U.S. government's approval of private space missions.6. A) Deliver scientific equipment to the moon.7. B) It is promising.8. D) Lying in the sun on a Thai beach.9. A) She visited a Thai orphanage.10. D) His phone is running out of power.11. C) He collects things from different countries.12. D) Trying out a new gym in town.13. C) A discount for a half-year membership.14. A) The safety of weight-lifting.15. C) She knows the basics of weight-lifting.16. B) They often apply for a number of positions.17. A) Get better organized.18. B) Personalize each application.19. B) If not forced to go to school, kids would be out in the streets.20. D) Design activities they now enjoy doing on holidays.21. D) Take kids out of school to learn at first hand.22. C) It is seen almost anywhere and on any occasion.23. D) It offers people a chance to socialize.24. A) Their state of mind improved.25. B) It is life.Part III Reading Comprehension26-35: MNCJF KLBIE36-45: EJGCN FBLDH46-55: BACDA CBADDPart IV TranslationBuses used to be the main means of transportation for the Chinese people. In recent years, with the number of private cars increasing, cities have been facing increasingly severe traffic problems. To encourage more people to travel by bus, many cities have been making efforts to improve bus services. Bus facilities have been continuously renovated, and bus speed has also increased dramatically. However, bus fares are still cheap. Now, in most cities, many local elderly citizens can take a bus for free.。
2018年6月英语六级考试真题及答案解析和听力原文 (第2套)
2018年6月英语六级考试真题及答案解析和听力原文 (第2套)2018年6月英语六级考试真题 (第2套)Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write an essay on the importance of building trust between teachers and students. You can cite examples to illustrate your views. You should write at least 150 words but no more than 200 words.Part II Listening Comprehension (30 minutes)Section ADirections: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 to 4 are based on the conversation you have just heard.1. A) She advocates animal protection.B) She sells a special kind of coffee. C) She is going to start a café chain.D) She is the owner of a special café.2. A) They bear a lot of similarities.B) They are a profitable business sector. C) They cater to different customers.D) They help take care of customers' pets.3. A) By giving them regular cleaning and injections.B) By selecting breeds that are tame and peaceful.C) By placing them at a safe distance from customers.D) By briefing customers on how to get along with them.4. A) They want to learn about rabbits.B) They like to bring in their children. C) They love the animals in her café.D) They give her café favorite reviews.Questions 5 to 8 are based on the conversation you have just heard.5. A) It contains too many additives.B) It lacks the essential vitamins. C) It can cause obesity.D) It is mostly garbage.6. A) Its fancy design. B) TV commercials. C) Its taste and texture. D) Peer influence.7. A) Investing heavily in the production of sweet foods.B) Marketing their products with ordinary ingredients.C) Trying to trick children into buying their products.D) Offering children more varieties to choose from.8. A) They hardly ate vegetables.B) They seldom had junk food. C) They favored chocolate-coated sweets.D) They liked the food advertised on TV.Section BDirections: In this section, you will hear two passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 9 to 11 are based on the passage you have just heard.9. A) Stretches of farmland.B) Typical Egyptian animal farms. C) Tombs of ancient rulers.D) Ruins left by devastating floods.10. A) It provides habitats for more primitive tribes.B) It is hardly associated with great civilizations.C) It has not yet been fully explored and exploited.D) It gathers water from many tropical rain forests.11. A) It carries about one fifth of the world's fresh water.B) It has numerous human settlements along its banks.C) It is second only to the Mississippi River in width.D) It is as long as the Nile and the Yangtze combined.Questions 12 to 15 are based on the passage you have just heard.12. A) Living a life in the fast lane leads to success.B) We are always in a rush to do various things.C) The search for tranquility has become a trend.D) All of us actually yearn for a slow and calm life.13. A) She had trouble balancing family and work. C) She was accustomed to tight schedules.B) She enjoyed the various social events. D) She spent all her leisure time writing books.14. A) The possibility of ruining her family.B)Becoming aware of her declining health. C) The fatigue from living a fast-paced life.D) Reading a book about slowing down.15. A) She started to follow the cultural norms. C) She learned to use more polite expressions.B) She came to enjoy doing everyday tasks. D) She stopped using to-do lists and calendars. Section CDirections: In this section, you will hear three recordings of lectures or talks followed by three or four questions. The recordings will be played only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through centre.Questions 16 to 18 are based on the recording you have just heard.16. A) They will root out native species altogether.B) They contribute to a region's biodiversity.C) They pose a threat to the local ecosystem.D) They will crossbreed with native species.17. A) Their classifications are meaningful.B) Their interactions are hard to define. C) Their definitions are changeable.D) Their distinctions are artificial.18. A) Only a few of them cause problems to native species.B) They may turn out to benefit the local environment.C) Few of them can survive in their new habitats.D) Only 10 percent of them can be naturalized.Questions 19 to 21 are based on the recording you have just heard.19. A) Respect their traditional culture.B) Attend their business seminars. C) Research their specific demands.D) Adopt the right business strategies.20. A) Showing them your palm. C) Drinking alcohol on certain days of a month.B) Giving them gifts of great value. D) Clicking your fingers loudly in their presence.21. A) They are very easy to satisfy.B) They have a strong sense of worth. C) They tend to be friendly and enthusiastic.D) They have a break from 2:00 to 5:30 p.m.Questions 22 to 25 are based on the recording you have just heard.22. A) He completely changed the company's culture.B) He collected paintings by world-famous artists.C) He took over the sales department of Reader's Digest.D) He had the company's boardroom extensively renovated.23. A) It should be sold at a reasonable price.B) Its articles should be short and inspiring.C) It should be published in the world's leading languages.D) Its articles should entertain blue- and pink-collar workers.24. A) He knew how to make the magazine profitable.B) He served as a church minister for many years.C) He suffered many setbacks and misfortunes in his life.D) He treated the employees like members of his family.25. A) It carried many more advertisements. C) Several hundred of its employees got fired.B) George Grune joined it as an ad salesman. D) Its subscriptions increased considerably. Part III Reading Comprehension (40 minutes)Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.Did Sarah Josepha Hale write "Mary's Little Lamb," the eternal nursery rhyme (儿歌) about a girl named Mary with a stubborn lamb? This is still disputed, but it's clear that the woman __26 for writing it was one of America's most fascinating 27 . In honor of the poem's publication on May 24, 1830, here's more about the 28 author's life.Hale wasn't just a writer, she was also a 29 social advocate, and she was particularly __30 with an ideal New England, which she associated with abundant Thanksgiving meals that she claimed had " a deep moral influence. " She began a nationwide __31 to have a national holiday declared that would bring families together while celebrating the 32 festivals.In 1863, after 17 years of advocacy including letters to five presidents, Hale got it. President Abraham Lincoln, during the Civil War, issued a 33 setting aside the last Thursday in November for the holiday.The true authorship of "Mary's Little Lamb" is disputed. According to the New EnglandHistorical Society, Hale wrote only part of the poem, but claimed authorship. Regardless of the author, it seems that the poem was 34 by a real event.When young Mary Sawyer was followed to school by a lamb in 1816, it caused some problems. A bystander named John Roulstone wrote a poem about the event, then, at some point, Hale herself seems to have helped write it. However, if a 1916 piece by her great-niece is to be trusted, Hale claimed for the 35 of her life that "some other people pretended that someone else wrote the poem".A) campaignB) careerC) characters D) featuresE) fierceF) inspiredG) latterH) obsessedI) proclamationJ) rectifiedK) reputedL) restM) supposedN) traditionalO) versatileSection BDirections: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.Grow Plants Without Water[A] Ever since humanity began to farm our own food, we’ve faced the unpredictable rain that is both friend and enemy. It comes and goes without much warning, and a field of lush (茂盛的) leafy greens one year can dry up and blow away the next. Food security and fortunes depend on sufficient rain, and nowhere more so than in Africa, where 96% of farmland depends on rain instead of the irrigation common in more developed places. It has consequences: South Africa's ongoing drought—the worst in three decades—will cost at least a quarter of its corn crop this year.[B] Biologist Jill Farrant of the University of Cape Town in South Africa says that nature has plenty of answers for people who want to grow crops in places with unpredictable rainfall. She is hard at work finding a way to take traits from rare wild plants that adapt to extreme dry weather and use them in food crops. As the earth's climate changes and rainfall becomes even less predictable in some places, those answers will grow even more valuable. "The type of farming I'm aiming for is literally so that people can survive as it's going to get more and more dry," Farrantsays.[C] Extreme conditions produce extremely tough plants. In the rusty red deserts of South Africa, steep-sided rocky hills called inselbergs rear up from the plains like the bones of the earth. The hills are remnants of an earlier geological era, scraped bare of most soil and exposed to the elements. Yet on these and similar formations in deserts around the world, a few fierce plants have adapted to endure under ever-changing conditions.[D]Farrant calls them resurrection plants (复苏植物). During months without water under a harsh sun, they wither, shrink and contract until they look like a pile of dead gray leaves. But rainfall can revive them in a matter of hours. Her time-lapse (间歇性拍摄的) videos of the revivals look like someone playing a tape of the plant's death in reverse.[E]The big difference between "drought-tolerant" plants and these tough plants: metabolism. Many different kinds of plants have developed tactics to weather dry spells. Some plants store reserves of water to see them through a drought; others send roots deep down to subsurface water supplies. But once these plants use up their stored reserve or tap out the underground supply, they cease growing and start to die. They may be able to handle a drought of some length, and many people use the term "drought tolerant" to describe such plants, but they never actually stop needing to consume water, so Farrant prefers to call them drought resistant.[F]Resurrection plants, defined as those capable of recovering from holding less than 0.1 grams of water per gram of dry mass, are different. They lack water-storing structures, and their existence on rock faces prevents them from tapping groundwater, so they have instead developed the ability to change their metabolism. When they detect an extended dry period, they divert their metabolisms, producing sugars and certain stress-associated proteins and other materials in their tissues. As the plant dries, these resources take on first the properties of honey, then rubber, and finally enter a glass-like state that is "the most stable state that the plant can maintain," Farrant says. That slows the plant's metabolism and protects its dried-out tissues. The plants also change shape, shrinking to minimize the surface area through which their remaining water might evaporate. They can recover from months and years without water, depending on the species.[G] What else can do this dry-out-and-revive trick? Seeds—almost all of them. At the start of her career, Farrant studied "recalcitrant seeds (顽拗性种子)," such as avocados, coffee andlychee. While tasty, such seeds are delicate—they cannot bud and grow if they dry out (as you may know if you've ever tried to grow a tree from an avocado pit). In the seed world, that makes them rare, because most seeds from flowering plants are quite robust. Most seeds can wait out the dry, unwelcoming seasons until conditions are right and they sprout (发芽). Yet once they start growing, such plants seem not to retain the ability to hit the pause button on metabolism in their stems or leaves.[H] After completing her Ph. D. on seeds, Farrant began investigating whether it might be possible to isolate the properties that make most seeds so resilient (迅速恢复活力的) and transfer them to other plant tissues. What Farrant and others have found over the past two decades is that there are many genes involved in resurrection plants' response to dryness. Many of them are the same that regulate how seeds become dryness-tolerant while still attached to their parent plants. Now they are trying to figure out what molecular signaling processes activate those seed-building genes in resurrection plants—and how to reproduce them in crops. "Most genes are regulated by a master set of genes," Farrant says. "We're looking at gene promoters and what would be their master switch."[I] Once Farrant and her colleagues feel they have a better sense of which switches to throw, they will have to find the best way to do so in useful crops. "I'm trying three methods of breeding," Farrant says: conventional, genetic modification and gene editing. She says she is aware that plenty of people do not want to eat genetically modified crops, but she is pushing ahead with every available tool until one works. Farmers and consumers alike can choose whether or not to use whichever version prevails："I'm giving people an option."[J] Farrant and others in the resurrection business got together last year to discuss the best species of resurrection plant to use as a lab model. Just like medical researchers use rats to test ideas for human medical treatments, botanists use plants that are relatively easy to grow in a lab or greenhouse setting to test their ideas for related species. The Queensland rock violet is one of the best studied resurrection plants so far, with a draft genome (基因图谱) published last year by a Chinese team. Also last year, Farrant and colleagues published a detailed molecular study of another candidate, Xerophyta viscosa, a tough-as-nail South African plant with lily-like flowers, and she says that a genome is on the way. One or both of these models will help researchers test their ideas—so far mostly done in the lab—on test plots.[K] Understanding the basic science first is key. There are good reasons why crop plants do not use dryness defenses already. For instance, there's a high energy cost in switching from a regular metabolism to an almost-no-water metabolism. It will also be necessary to understand what sort of yield farmers might expect and to establish the plant's safety. "The yield is never going to be high," Farrant says, so these plants will be targeted not at Iowa farmers trying to squeeze more cash out of high-yield fields, but subsistence farmers who need help to survive a drought like the present one in South Africa. "My vision is for the subsistence farmer," Farrant says. "I'm targeting crops that are of African value."36.There are a couple of plants tough and adaptable enough to survive on bare rocky hills and in deserts.37. Farrant is trying to isolate genes in resurrection plants and reproduce them in crops.38. Farmers in South Africa are more at the mercy of nature, especially inconsistent rainfall.39.Resurrection crops are most likely to be the choice of subsistence farmers.40.Even though many plants have developed various tactics to cope with dry weather, they cannot survive a prolonged drought.41.Despite consumer resistance, researchers are pushing ahead with genetic modification of crops.42.Most seeds can pull through dry spells and begin growing when conditions are ripe, but once this process starts, it cannot be held back.43.Farrant is working hard to cultivate food crops that can survive extreme dryness by studying the traits of rare wild plants.44.By adjusting their metabolism, resurrection plants can recover from an extended period of drought.45. Resurrection plants can come back to life in a short time after a rainfall.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.Human memory is notoriously unreliable. Even people with the sharpest facial-recognition skills can only remember so much.It's tough to quantify how good a person is at remembering. No one really knows how many different faces someone can recall, for example, but various estimates tend to hover in the thousands—based on the number of acquaintances a person might have.Machines aren't limited this way. Give the right computer a massive database of faces, and it can process what it sees—then recognize a face it's told to find—with remarkable speed and precision. This skill is what supports the enormous promise of facial-recognition software in the 21st century. It's also what makes contemporary surveillance systems so scary.The thing is, machines still have limitations when it comes to facial recognition. And scientists are only just beginning to understand what those constraints are. To begin to figure out how computers are struggling, researchers at the University of Washington created a massive database of faces—they call it MegaFace—and tested a variety of facial-recognition algorithms (算法) as they scaled up in complexity. The idea was to test the machines on a database that included up to 1 million different images of nearly 700,000 different people—and not just a large database featuring a relatively small number of different faces, more consistent with what's been used in other research.As the databases grew, machine accuracy dipped across the board. Algorithms that were right 95% of the time when they were dealing with a 13,000-image database, for example, were accurate about 70% of the time when confronted with 1 million images. That's still pretty good, says one of the researchers, Ira Kemelmacher-Shlizerman. "Much better than we expected," she said.Machines also had difficulty adjusting for people who look a lot alike—either doppelgangers (长相极相似的人), whom the machine would have trouble identifying as two separate people, or the same person who appeared in different photos at different ages or in different lighting, whom the machine would incorrectly view as separate people."Once we scale up, algorithms must be sensitive to tiny changes in identities and at the same time invariant to lighting, pose, age," Kemelmacher-Shlizerman said.The trouble is, for many of the researchers who'd like to design systems to address thesechallenges, massive datasets for experimentation just don't exist—at least, not in formats that are accessible to academic researchers. Training sets like the ones Google and Facebook have are private. There are no public databases that contain millions of faces. MegaFace's creators say it's the largest publicly available facial-recognition dataset out there."An ultimate face recognition algorithm should perform with billions of people in a dataset," the researchers wrote.46. Compared with human memory, machines can ________.A) identify human faces more efficiently C) store an unlimited number of human facesB) tell a friend from a mere acquaintance D) perceive images invisible to the human eye47. Why did researchers create MegaFace?A) To enlarge the volume of the facial-recognition database.B) To increase the variety of facial-recognition software.C) To understand computers' problems with facial recognition.D) To reduce the complexity of facial-recognition algorithms.48. What does the passage say about machine accuracy?A) It falls short of researchers' expectations. C) It varies greatly with different algorithms.B) It improves with added computing power. D) It decreases as the database size increases.49. What is said to be a shortcoming-of facial-recognition machines?A) They cannot easily tell apart people with near-identical appearances.B) They have difficulty identifying changes in facial expressions.C) They are not sensitive to minute changes in people's mood.D) They have problems distinguishing people of the same age.50. What is the difficulty confronting researchers of facial-recognition machines?A) No computer is yet able to handle huge datasets of human faces.B) There do not exist public databases with sufficient face samples.C) There are no appropriate algorithms to process the face samples.D) They have trouble converting face datasets into the right format.Passage TwoQuestions 51 to 55 are based on the following passage.There're currently 21.5 million students in America, and many will be funding their collegeon borrowed money. Given that there's now over $1.3 trillion in student loans on the books, it's pretty clear that many students are far from sensible. The average student's debt upon graduation now approaches $40,000, and as college becomes ever more expensive, calls to make it "free" are multiplying. Even Hillary Clinton says that when it comes to college, "Costs won't be a barrier."But the only way college could be free is if the faculty and staff donated their time, the buildings required no maintenance, and campuses required no utilities. As long as it's impossible to produce something from nothing, costs are absolutely a barrier.The actual question we debate is who should pay for people to go to college. If taxpayers are to bear the cost of forgiving student loans, shouldn't they have a say in how their money is used?At least taxpayers should be able to decide what students will study on the public dime. If we're going to force taxpayers to foot the bill for college degrees, students should only study those subjects that're of greatest benefit to taxpayers. After all, students making their own choices in this respect is what caused the problem in the first place. We simply don't need more poetry, gender studies, or sociology majors. How do we know which subjects benefit society? Easy.Average starting salaries give a clear indication of what type of training society needs its new workers to have. Certainly, there're benefits to a college major beyond the job a student can perform. But if we're talking about the benefits to society, the only thing that matters is what the major enables the student to produce for society. And the value of what the student can produce is reflected in the wage employers are willing to pay the student to produce it.A low wage for elementary school teachers, however, doesn't mean elementary education isn't important. It simply means there're too many elementary school teachers already.Meanwhile, there're few who're willing and able to perform jobs requiring a petroleum engineering major, so the value of one more of those people is very high.So we can have taxpayers pick up students' tuition in exchange for dictating what those students will study. Or we can allow students both to choose their majors and pay for their education themselves. But in the end, one of two things is true:Either a college major is worth its cost or it isn't. If yes, taxpayer financing isn't needed. If not, taxpayer financing isn't desirable. Either way, taxpayers have no business paying for students'college education.51. What does the author think of college students funding their education through loans?A) They only expect to get huge returns.B) They are acting in an irrational way. C) They benefit at taxpayers' expense.D) They will regret doing so someday.52. In the author's opinion, free college education is ________.A) impractical B) unsustainable C) a goal to strive for D) a way to social equality53. What should students do if taxpayers are to bear their college costs?A) Work even harder to repay society.B) Choose their subjects more carefully.C) Choose majors that will serve society's practical needs.D) Allow taxpayers to participate in college administration.54. What does the author say about the value of a student's college education?A) It is underestimated by profit-seeking employers.B) It is to be proved by what they can do on the job.C) It is well reflected in their average starting salary.D) It is embodied in how they remove social barriers.55. What message does the author want to convey in the passage?A) Students should think carefully whether to go to college.B) Taxpayers should only finance the most gifted students.C) The worth of a college education is open to debate.D) College students should fund their own education.Part IV Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.中国目前拥有世界上最大最快的高速铁路网。
2018年6月大学生英语四级真题试卷及答案(第二套)
目录2018年6月大学英语四级真题试题二(完整版) (1)答案 (16)2018年6月大学英语四级真题试题二(完整版)Part I Writing(30minutes) (请于正式开考后半小时内完成该部分，之后将进行听力考试)Directions:For this part,you are allowed30minutes to write an a short easy on the importance of speaking ability and how to develop it.You should write at least120words but no more than180words.Part II Listening Comprehension(25minutes) Section ADirections:In this section,you will hear three news reports.At the end of each news report,you will hear two or three questions.Both the news report and questions will be spoken only once.After you hear questions,you must choose the best answer from the four choices marked A),B),C)and D).Then mark the corresponding letter on Answer Sheet1with a single line through the centre.注意：此部分试题请在答题卡1上作答。
Questions1to2are based on the new report you have just heard.1.A)Annoyed.C)Confused.B)Scared.D)Offended.2.A)It crawled over the woman’s hands.B)It wound up on the steering wheel.C)It was killed by the police on the spot.D)It was covered with large scales.Questions3to4are based on the new report you have just heard.3.A)A study of the fast-food service.B)Fast food customer satisfaction.C)McDonald’s new business strategies.D)Competition in the fast-food industry.4.A)Customers'higher demands.B)The inefficiency of employees.C)Increased variety of products.D)The rising number of customers.Questions5to7are based on the new report you have just heard.5.A)International treaties regarding space travel programs.B)Legal issues involved in commercial space exploration.C)ernment’s approval of private space missions.D)Competition among public and private space companies.6.A)Deliver scientific equipment to the moon.B)Approve a new mission to travel into outer space.C)Work with federal agencies on space programs.D)Launch a manned spacecraft to Mars.7.A)It is significant.B)It is promising.C)It is unpredictable.D)It is unprofitable.Section BDirections:In this section,you will hear two long conversations.At the end of each conversation, you will hear four questions.Both the conversation and the questions will be spoken only once.After you hear a question,you must choose the best answer from the four choices marked A),B),C)and D).Thenmark the corresponding letter on Answer Sheet1with a single line through the centre. Questions8to11are based on the conversation you have just heard。
2018年6月英语四级真题及答案第二套
2018年 6月英语四级真题及答案第二套Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write a short essay on the importance of writing ability and how to develop it. You should write at least 120 words but no more than 180 words.Part Ⅱ Listening Comprehension (25 minutes)Section ADirections: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard.1. A) Annoyed. B) Scared.C) Confused. D) Offended.2. A) It crawled over the woman’s hands.B) It wound up on the steering wheel.C) It was killed by the police on the spot.D) It was covered with large scales.Questions 3 and 4 are based on the news report you have just heard.3. A) A study of the fast-food service.B) Fast food customer satisfaction.C) McDonald’s new business strategies.D) Competition in the fast-food industry.4. A) Customers’ higher demands.B) The inefficiency of employees.C) Increased variety of products.D) The rising number of customers.Questions 5 to 7 are based on the news report you have just heard.5. A) International treaties regarding space travel programs.B) Legal issues involved in commercial space exploration.C) U.S. government’s approval of private space missions.D) Competition among public and private space companies.6. A) Deliver scientific equipment to the moon.B) Approve a new mission to travel into outer space.C) Work with federal agencies on space programs.D) Launch a manned spacecraft to Mars.7. A) It is significant. C) It is unpredictable.B) It is promising. D) It is unprofitable.Section BDirections: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8. A) Visiting her family in Thailand.B) Showing friends around Phuket.C) Swimming around a Thai island.D) Lying in the sun on a Thai beach.9. A) She visited a Thai orphanage.B) She met a Thai girl’s parents.C) She learned some Thai words.D) She sunbathed on a Thai beach.10. A) His class will start in a minute.B) He has got an incoming phone call.C) Someone is knocking at his door.D) His phone is running out of power.11. A) He is interested in Thai artworks.B) He is going to open a souvenir shop.C) He collects things from different countries.D) He wants to know more about Thai culture.Questions 12 to 15 are based on the conversation you have just heard.12. A) Buying some fitness equipment for the new gym.B) Opening a gym and becoming personal trainers.C) Signing up for a weight-loss course.D) Trying out a new gym in town.13. A) Professional personal training.B) Free exercise for the first week.C) A discount for a half-year membership.D) Additional benefits for young couples.14. A) The safety of weight-lifting.B) The high membership fee.C) The renewal of his membership.D) The operation of fitness equipment.15. A) She wants her invitation renewed.B) She used to do 200 sit-ups every day.C) She knows the basics of weight-lifting.D) She used to be the gym’s personal trainer.Section CDirections: In this section, you will hear three passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16. A) They tend to be nervous during interviews.B) They often apply for a number of positions.C) They worry about the results of their applications.D) They search extensively for employers' information.17. A) Get better organized. C) Find better-paid jobs.B) Edit their references. D) Analyze the searching process.18. A) Provide their data in detail. C) Make use of better search engines.B) Personalize each application. D) Apply for more promising positions.Questions 19 to 21 are based on the passage you have just heard.19. A) If kids did not like school, real learning would not take place.B) If not forced to go to school, kids would be out in the streets.C) If schools stayed the way they are, parents were sure to protest.D) If teaching failed to improve, kids would stay away from school.20. A) Allow them to play interesting games in class.B) Try to stir up their interest in lab experiments.C) Let them stay home and learn from their parents.D) Design activities they now enjoy doing on holidays.21. A) Allow kids to learn at their own pace. C) Organize kids into various interest groups.B) Encourage kids to learn from each other. D) Take kids out of school to learn at first hand.Questions 22 to 25 are based on the passage you have just heard.22. A) It is especially popular in Florida and Alaska.B) It is a major social activity among the young.C) It is seen almost anywhere and on any occasion.D) It is even more expressive than the written word.23. A) It is located in a big city in Iowa. C) It offers free dance classes to seniors.B) It is really marvelous to look at. D) It offers people a chance to socialize.24. A) Their state of mind improved. C) They enjoyed better health.B) They became better dancers. D) Their relationship strengthened.25. A) It is fun. C) It is exhausting.B) It is life. D) It is rhythmical.Part Ⅲ Reading Comprehension (40 minutes)Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre.You may not use any of the words in the bank more than once. Since the 1940s, southern California has had a reputation for smog. Things are not as bad as they once were but, according to the American Lung Association, Los Angeles is still the worst city in the United States for levels of 26 . Gazing down on the city from the Getty Center, an art museum inthe Santa Monica Mountains, one would find the view of the Pacific Ocean blurred by the haze (霾).Nor is the state’s bad air27 to its south. Fresno, in the central valley, comes top of the list in America for year-round pollution. Residents’ hearts and lungs are affected as a28 .All of which, combined with California’s reputation as the home of technological29 , makes the place ideal for developing and testing systems designed to monitor pollution in 30 . And that is just what Aclima, a new firm in San Francisco, has been doing over the past few months. It has been trying out monitoring stations that are 31 to yield minute-to-minute maps of 32 air pollution. Such stations will also be able to keep an eye on what is happening inside buildings, including offices.To this end, Aclima has been 33 with Google’s Street View system. Davida Herzl, Aclima’s boss, says they have revealed pollution highs on days when San Francisco’s transit workers went on strike and the city’s34 were forced to use their cars. Conversely, “cycle to work” days have done their job by 35 pollution lows.Section BDirections: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.As Tourists Crowd Out Locals, Venice Faces ‘Endangered’ ListA) On a recent fall morning, a large crowd blocked the steps at one of Venice’s main tourist sites, the Rialto Bridge. The Rialto Bridge is one of the four bridges spanning the Grand Canal. It is the oldest bridge across the canal, and was the dividing line between the districts of San Marco and San Polo. But on this day, there was a twist: it was filled with Venetians, not tourists.B) “People are cheering and holding their carts in the air,” says Giovanni Giorgio, who helped organize the march with a grass-roots organization called Generazione ’90. The carts he refers to are small shopping carts – the symbol of a true Venetian. “It started as a joke,” he says with a laugh. “The idea was to put blades on the wheels! You know? Like Ben Hur. Precisely like that, you just go around and run people down.”C) Venice is one of the hottest tourist destinations in the world. But that’s a problem. Up to 90,000 tourists crowd its streets and canals every day – far outnumbering the 55,000 permanent residents. The tourist increase is one key reason the city’s population is down from 175,000 in the 1950s. The outnumbered Venetians have been steadily fleeing. And those who stick around are tired of living in a place where they can’t even get to the market without swimming through a sea of picture-snapping tourists. Imagine, navigating through 50,000 people while on the way to school or to work.D) Laura Chigi, a grandmother at the march, says the local and national governments have failed to do anything about the crowds for decades, because they’re only interested in tourism –the primary industry in Venice, worth more than $3 billion in 2015. “Venice is a cash cow,” she says, “and everyone wants a piece.”E) Just beyond St. Mark’s Square, a cruise ship passes, one of hundreds every year that appear over their medieval (中世纪的) surroundings. Their massive wake creates waves at the bottom of thesea, weakening the foundations of the centuries-old buildings themselves. “Every time I see a cruise ship, I feel sad,” Chigi says. “You see the mud it drags; the destruction it leaves in its wake? That hurts the ancient wooden poles holding up the city underwater. One day we’ll see Venice break down.”F) For a time, UNESCO, the cultural wing of the United Nations, seemed to agree. Two years ago, it put Italy on notice, saying the government was not protecting Venice. UNESCO considers the entire city a World Heritage Site, a great honor that means Venice, at the cultural level, belongs to all of the world’s people. In 2014, UNESCO gave Italy two years to manage Venice’s flourishing tourism or the city would be placed on another list – World Heritage In Danger, joining such sites as Aleppo and Palmyra, destroyed by the war in Syria.G) Venice’s deadline passed with barely a murmur (嘟哝) this summer, just as UNESCO was meetingin Istanbul. Only one representative, Jad Tabet from Lebanon, tried to raise the issue. “For several years, the situation of heritage in Venice has been worsening, and it has now reached a dramatic situation,” Tabet told UNESCO. “We have to act quickly –there is not a moment to waste.”H) But UNESCO didn’t even hold a vote. “It’s been postponed until 2017,” says Anna Somers, the founder and CEO of The Art Newspaper and the former head of Venice in Peril, a group devoted to restoring Venetian art. She says the main reason the U.N. cultural organization didn’t vote to declare Venice a World Heritage Site In Danger is because UNES CO has become “intensely politicized. There would have been some back-room negotiations.”I) Italy boasts more UNESCO World Heritage Sites than any other country in the world, granting it considerable power and influence within the organization. The former head of the UNESCO World Heritage Centre, which oversees heritage sites, is Francesco Bandarin, a Venetian who now serves as UNESCO's assistant director-general for culture.J) Earlier this year, Italy signed an accord with UNESCO to establish a task force of police art detectives and archaeologists (考古学家) to protect cultural heritage from natural disasters andterror groups, such as ISIS. The accord underlined Italy’s global reputation asa good steward of art and culture.K) But adding Venice to the UNESCO endangered list – which is dominated by sites in developing and conflict-ridden countries –would be an international embarrassment, and could even hurt Italy’s profitable tourism industry. The Italian Culture Ministry says it is unaware of any government efforts to pressure UNESCO. As for the organization itself, it declined a request for an interview.L) The city’s current mayor, Luigi Brugnaro, has ridiculed UNESCO and told it to mind its own business, while continuing to support the cruise ship industry, which employs 5,000 Venice residents.M) As for Venetians, they’re beyond frustrated and hoping for a solution soon. “It’s a nightmare for me. Some situations are really difficult with tourists around,” says Giorgio as he navigates around a swe lling crowd at the Rialto Bridge. “There are just so many of them. They never know where they are going, and do not walk in an orderly manner. Navigating the streets can be exhausting.”N) Then it hits him: This crowd isn’t made up of tourists. They’re Ve netians. Giorgio says he’s never experienced the Rialto Bridge this way in all his 22 years. “For once, we are the ones who are blocking the traffic,” he says delightedly. “It feels unreal. It feels like we’re some form of endangered species. It’s just nic e. The feeling is just pure.” But, he worries, if tourism isn’t managed and his fellow locals continue to move to the mainland, his generation might be the last who can call themselves native Venetians.36. The passing cruise ships will undermine the foundations of the ancient buildings in Venice.37. The Italian government has just reached an agreement with UNESCO to take measures to protect its cultural heritage.38. The heritage situation in Venice has been deteriorating in the past few years.39. The decrease in the number of permanent residents in Venice is mainly due to the increase of tourists.40. If tourism gets out of control, native Venetians may desert the city altogether one day.41. UNESCO urged the Italian government to undertake its responsibility to protect Venice.42. The participants in the Venetian march used shopping carts to show they were100% local residents.43. Ignoring UNESCO's warning, the mayor of Venice maintains his support of the city’s tourism industry.44. One woman says that for decades the Italian government and local authorities have only focused on the revenues from tourism.45. UNESCO has not yet decided to put Venice on the list of World Heritage Sites In Danger.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.Living in an urban area with green spaces has a long-lasting positive impact on people’s mental well-being, a study has suggested. UK researchers found moving to a green space had a sustained positive effect, unlike pay rises or promotions, which only provided a short-term boost. Co-author Mathew White, from the University of Exeter, UK, explained that the study showed people living in greener urban areas were displa ying fewer signs of depression or anxiety. “There could be a number of reasons,” he said, “for example, people do many things to make themselves happier: they strive for promotion or pay rises, or they get married. But the trouble with those things is that within six months to a year, people are back to their original baseline levels of well-being. So, these things are not sustainable; they don’t make us happy in the long term. We found that for some lottery (彩票) winners who had won more than £￡500,000 the positive effect was definitely there, but after six months to a year, they were back to the baseline.”Dr. White said his team wanted to see whether living in greener urban areas had a lasting positive effect on people’s sense of well-being or whether the effect also disappeared after a period of time. To do this, the team used data from the British Household Panel Survey compiled by the University of Essex.Explaining what the data revealed, he said: “What you see is that even after three years, mental health is still better, which is unlike many other things that we thinkwill make us happy.” He observed that people living in green spaces were less stressed, and less stressed people made more sensible decisions and communicated better.With a growing body of evidence establishing a link between urban green spaces and a positive impact on human well-being, Dr. White said, “There’s growing interest among public policy officials, but the trouble is who funds it. What we really need at a policy level is to decide where the money will come from to help support good quality local green spaces.”46. According to one study, what do green spaces do to people?A) Improve their work efficiency.B) Add to their sustained happiness.C) Help them build a positive attitude towards life.D) Lessen their concerns about material well-being.47. What does Dr. White say people usually do to make themselves happier?A) Earn more money. C) Gain fame and popularity.B) Settle in an urban area. D) Live in a green environment.48. What does Dr. White try to find out about living in a greener urban area?A) How it affects different people. C) How long its positive effect lasts.B) How strong its positive effect is. D) How it benefits people physically.49. What did Dr. White's research reveal about people living in a green environment?A) Their stress was more apparent than real. C) Their memories were greatly strengthened.B) Their decisions required less deliberation. D) Their communication with others improved.50. According to Dr. White, what should the government do to build more green spaces in cities?A) Find financial support. C) Involve local residents in the effort.B) Improve urban planning. D) Raise public awareness of the issue.Passage TwoQuestions 51 to 55 are based on the following passage.You probably know about the Titanic, but it was actually just one of three state-of-the-art (先进的) ocean ships back in the day. The Olympic class ships were built by the Harland & Wolff ship makers in Northern Ireland for the White Star Line company. The Olympic class included the Olympic, the Britannic and the Titanic. What you may not know is that the Titanic wasn't even the flagship of this class. All in all, the Olympic class ships were marvels of sea engineering, but they seemed cursed to suffer disastrous fates.The Olympic launched first in 1910, followed by the Titanic in 1911, and lastly the Britannic in 1914. The ships had nine decks, and White Star Line decided to focus on making them the most luxurious ships on the water.Stretching 269.13 meters, the Olympic class ships were wonders of naval technology, and everyone thought that they would continue to be so for quite some time. However, all suffered terrible accidents on the open seas. The Olympic got wrecked before the Titanic did, but it was the only one to survive and maintain a successful career of 24 years. The Titanic was the first to sink after famously hitting a huge iceberg in 1912. Following this disaster, the Britannic hit a naval mine in 1916 and subsequently sank as well.Each ship was coal-powered by several boilers constantly kept running by exhausted crews below deck. Most recognizable of the ship designs are the ship’s smoke stacks, but the fourth stack was actually just artistic in nature and served no functional purpose. While two of these ships sank, they were all designed with double hulls (船体) believed to make them “unsinkable”, perhaps a mistaken idea that led to the Titanic’s and the Britannic’s tragic end.The Olympic suffered two crashes with other ships and went on to serve as a hospital ship andtroop transport in World War I. Eventually, she was taken out of service in 1935, ending the era of the luxurious Olympic class ocean liners.51. What does the passage say about the three Olympic class ships?A) They performed marvellously on the sea.B) They could all break the ice in their way.C) They all experienced terrible misfortunes.D) They were models of modern engineering.52. What did White Star Line have in mind when it purchased the three ships?A) Their capacity of sailing across all waters.B) The utmost comfort passengers could enjoy.C) Their ability to survive disasters of any kind.D) The long voyages they were able to undertake.53. What is said about the fourth stack of the ships?A) It was a mere piece of decoration.B) It was the work of a famous artist.C) It was designed to let out extra smoke.D) It was easily identifiable from afar.54. What might have led to the tragic end of the Titanic and the Britannic?A) Their unscientific designs.B) Their captains’ misjudgment.C) The assumption that they were built with the latest technology.D) The belief that they could never sink with a double-layer body.55. What happened to the ship Olympic in the end?A) She was used to carry troops. C) She was converted into a hospital ship.B) She was sunk in World War I. D) She was retired after her naval service. Part Ⅳ Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese intoEnglish. You should write your answer on Answer Sheet 2.公交车曾是中国人出行的主要交通工具。
2018年6月大学英语四级真题试卷(二)(题后含答案及解析)
2018年6月大学英语四级真题试卷（二）(题后含答案及解析)题型有：1. Writing 2. Listening Comprehension 3. Reading Comprehension 4. TranslationPart I Writing1．For this part, you are allowed 30 minutes to write a short essay on the importance of speaking ability and how to develop it. You should write at least 120 words but no more than 180 words.正确答案：How to Develop English Speaking Ability? Speaking ability is an essential skill that is closely linked with all aspects of our life, for we need to communicate with others and make ourselves understood. With the deepening of globalization, today’ s college students have to enhance the ability of oral English communication. Even though Chinese students have learned English for many years and taken numerous tests in school, practically speaking, most students are rather poor in speaking English. The key to learning English is to use it proficiently. With the implementation of reform and opening-up policy, more and more foreign people and companies enter China, so it has become an inevitability for college students to use English in communication and work. In order to develop speaking ability, we should first enlarge our vocabulary by reading English materials we are interested in. We can start with the simple ones. Secondly, we should practice speaking as much as possible. Try to find a partner like a foreign teacher or attend English corners. Moreover, we should read aloud so as to boost our confidence in speaking and correct our pronunciation. All in all, developing English speaking ability requires long-term practice and we should never give up.解析：这是一篇议论文写作。
2018年6月英语四级真题及答案第二套
2018年 6月英语四级真题及答案第二套Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write a short essay on the importance of writing ability and how to develop it. You should write at least 120 words but no more than 180 words.Part Ⅱ Listening Comprehension (25 minutes)Section ADirections: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard.1. A) Annoyed. B) Scared.C) Confused. D) Offended.2. A) It crawled over the woman’s hands.B) It wound up on the steering wheel.C) It was killed by the police on the spot.D) It was covered with large scales.Questions 3 and 4 are based on the news report you have just heard.3. A) A study of the fast-food service.B) Fast food customer satisfaction.C) McDonald’s new business strategies.D) Competition in the fast-food industry.4. A) Customers’ higher demands.B) The inefficiency of employees.C) Increased variety of products.D) The rising number of customers.Questions 5 to 7 are based on the news report you have just heard.5. A) International treaties regarding space travel programs.B) Legal issues involved in commercial space exploration.C) U.S. government’s approval of private space missions.D) Competition among public and private space companies.6. A) Deliver scientific equipment to the moon.B) Approve a new mission to travel into outer space.C) Work with federal agencies on space programs.D) Launch a manned spacecraft to Mars.7. A) It is significant. C) It is unpredictable.B) It is promising. D) It is unprofitable.Section BDirections: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8. A) Visiting her family in Thailand.B) Showing friends around Phuket.C) Swimming around a Thai island.D) Lying in the sun on a Thai beach.9. A) She visited a Thai orphanage.B) She met a Thai girl’s parents.C) She learned some Thai words.D) She sunbathed on a Thai beach.10. A) His class will start in a minute.B) He has got an incoming phone call.C) Someone is knocking at his door.D) His phone is running out of power.11. A) He is interested in Thai artworks.B) He is going to open a souvenir shop.C) He collects things from different countries.D) He wants to know more about Thai culture.Questions 12 to 15 are based on the conversation you have just heard.12. A) Buying some fitness equipment for the new gym.B) Opening a gym and becoming personal trainers.C) Signing up for a weight-loss course.D) Trying out a new gym in town.13. A) Professional personal training.B) Free exercise for the first week.C) A discount for a half-year membership.D) Additional benefits for young couples.14. A) The safety of weight-lifting.B) The high membership fee.C) The renewal of his membership.D) The operation of fitness equipment.15. A) She wants her invitation renewed.B) She used to do 200 sit-ups every day.C) She knows the basics of weight-lifting.D) She used to be the gym’s personal trainer.Section CDirections: In this section, you will hear three passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16. A) They tend to be nervous during interviews.B) They often apply for a number of positions.C) They worry about the results of their applications.D) They search extensively for employers' information.17. A) Get better organized. C) Find better-paid jobs.B) Edit their references. D) Analyze the searching process.18. A) Provide their data in detail. C) Make use of better search engines.B) Personalize each application. D) Apply for more promising positions.Questions 19 to 21 are based on the passage you have just heard.19. A) If kids did not like school, real learning would not take place.B) If not forced to go to school, kids would be out in the streets.C) If schools stayed the way they are, parents were sure to protest.D) If teaching failed to improve, kids would stay away from school.20. A) Allow them to play interesting games in class.B) Try to stir up their interest in lab experiments.C) Let them stay home and learn from their parents.D) Design activities they now enjoy doing on holidays.21. A) Allow kids to learn at their own pace. C) Organize kids into various interest groups.B) Encourage kids to learn from each other. D) Take kids out of school to learn at first hand.Questions 22 to 25 are based on the passage you have just heard.22. A) It is especially popular in Florida and Alaska.B) It is a major social activity among the young.C) It is seen almost anywhere and on any occasion.D) It is even more expressive than the written word.23. A) It is located in a big city in Iowa. C) It offers free dance classes to seniors.B) It is really marvelous to look at. D) It offers people a chance to socialize.24. A) Their state of mind improved. C) They enjoyed better health.B) They became better dancers. D) Their relationship strengthened.25. A) It is fun. C) It is exhausting.B) It is life. D) It is rhythmical.Part Ⅲ Reading Comprehension (40 minutes)Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre.You may not use any of the words in the bank more than once. Since the 1940s, southern California has had a reputation for smog. Things are not as bad as they once were but, according to the American Lung Association, Los Angeles is still the worst city in the United States for levels of 26 . Gazing down on the city from the Getty Center, an art museum inthe Santa Monica Mountains, one would find the view of the Pacific Ocean blurred by the haze (霾).Nor is the state’s bad air27 to its south. Fresno, in the central valley, comes top of the list in America for year-round pollution. Residents’ hearts and lungs are affected as a28 .All of which, combined with California’s reputation as the home of technological29 , makes the place ideal for developing and testing systems designed to monitor pollution in 30 . And that is just what Aclima, a new firm in San Francisco, has been doing over the past few months. It has been trying out monitoring stations that are 31 to yield minute-to-minute maps of 32 air pollution. Such stations will also be able to keep an eye on what is happening inside buildings, including offices.To this end, Aclima has been 33 with Google’s Street View system. Davida Herzl, Aclima’s boss, says they have revealed pollution highs on days when San Francisco’s transit workers went on strike and the city’s34 were forced to use their cars. Conversely, “cycle to work” days have done their job by 35 pollution lows.Section BDirections: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.As Tourists Crowd Out Locals, Venice Faces ‘Endangered’ ListA) On a recent fall morning, a large crowd blocked the steps at one of Venice’s main tourist sites, the Rialto Bridge. The Rialto Bridge is one of the four bridges spanning the Grand Canal. It is the oldest bridge across the canal, and was the dividing line between the districts of San Marco and San Polo. But on this day, there was a twist: it was filled with Venetians, not tourists.B) “People are cheering and holding their carts in the air,” says Giovanni Giorgio, who helped organize the march with a grass-roots organization called Generazione ’90. The carts he refers to are small shopping carts – the symbol of a true Venetian. “It started as a joke,” he says with a laugh. “The idea was to put blades on the wheels! You know? Like Ben Hur. Precisely like that, you just go around and run people down.”C) Venice is one of the hottest tourist destinations in the world. But that’s a problem. Up to 90,000 tourists crowd its streets and canals every day – far outnumbering the 55,000 permanent residents. The tourist increase is one key reason the city’s population is down from 175,000 in the 1950s. The outnumbered Venetians have been steadily fleeing. And those who stick around are tired of living in a place where they can’t even get to the market without swimming through a sea of picture-snapping tourists. Imagine, navigating through 50,000 people while on the way to school or to work.D) Laura Chigi, a grandmother at the march, says the local and national governments have failed to do anything about the crowds for decades, because they’re only interested in tourism –the primary industry in Venice, worth more than $3 billion in 2015. “Venice is a cash cow,” she says, “and everyone wants a piece.”E) Just beyond St. Mark’s Square, a cruise ship passes, one of hundreds every year that appear over their medieval (中世纪的) surroundings. Their massive wake creates waves at the bottom of thesea, weakening the foundations of the centuries-old buildings themselves. “Every time I see a cruise ship, I feel sad,” Chigi says.“You see the mud it drags; the destruction it leaves in its wake? That hurts the ancient wooden poles holding up the city underwater. One day we’ll see Venice break down.”F) For a time, UNESCO, the cultural wing of the United Nations, seemed to agree. Two years ago, it put Italy on notice, saying the government was not protecting Venice. UNESCO considers the entire city a World Heritage Site, a great honor that means Venice, at the cultural level, belongs to all of the world’s people. In 2014, UNESCO gav e Italy two years to manage Venice’s flourishing tourism or the city would be placed on another list – World Heritage In Danger, joining such sites as Aleppo and Palmyra, destroyed by the war in Syria.G) Venice’s deadline passed with barely a murmur (嘟哝) this summer, just as UNESCO was meetingin Istanbul. Only one representative, Jad Tabet from Lebanon, tried to raise the issue. “For several years, the situation of heritage in Venice has been worsening, and it has now reached a dramatic situation,” Tabet told UNESCO. “We have to act quickly –there is not a moment to waste.”H) But UNESCO didn’t even hold a vote. “It’s been postponed until 2017,” says Anna Somers, the founder and CEO of The Art Newspaper and the former head of Venice in Peril, a group devoted to restoring Venetian art. She says the main reason the U.N. cultural organization didn’t vote to declare Venice a World Heritage Site In Danger is because UNESCO has become “intensely politicized. There would have been some back-room negotiations.”I) Italy boasts more UNESCO World Heritage Sites than any other country in the world, granting it considerable power and influence within the organization. The former head of the UNESCO World Heritage Centre, which oversees heritage sites, is Francesco Bandarin, a Venetian who now serves as UNESCO's assistant director-general for culture.J) Earlier this year, Italy signed an accord with UNESCO to establish a task force of police art detectives and archaeologists (考古学家) to protect cultural heritage from natural disasters andterror groups, such as ISIS. The accord underlined Italy’s global reputation asa good steward of art and culture.K) But adding Venice to the UNESCO endangered list – which is dominated by sites in developing and conflict-ridden countries –would be an international embarrassment, and could even hurt Italy’s profitable tourism industry. The Italian Culture Ministry says it is unaware of any government efforts to pressure UNESCO. As for the organization itself, it declined a request for an interview.L) The city’s current mayor, Luigi Brugnaro, has ridiculed UNESCO and told it to mind its own business, while continuing to support the cruise ship industry, which employs 5,000 Venice residents.M) As for Venetians, they’re beyond fru strated and hoping for a solution soon. “It’s a nightmare for me. Some situations are really difficult with tourists around,” says Giorgio as he navigates around a swelling crowd at the Rialto Bridge. “There are just so many of them. They never know where they are going, and do not walk in an orderly manner. Navigating the streets can be exhausting.”N) Then it hits him: This crowd isn’t made up of tourists. They’re Venetians. Giorgio says he’s never experienced the Rialto Bridge this way in all his 22 yea rs. “For once, we are the ones who are blocking the traffic,” he says delightedly. “It feels unreal. It feels like we’re some form of endangered species. It’s just nice. The feeling is just pure.” But, he worries, if tourism isn’t managed and his fellow locals continue to move to the mainland, his generation might be the last who can call themselves native Venetians.36. The passing cruise ships will undermine the foundations of the ancient buildings in Venice.37. The Italian government has just reached an agreement with UNESCO to take measures to protect its cultural heritage.38. The heritage situation in Venice has been deteriorating in the past few years.39. The decrease in the number of permanent residents in Venice is mainly due to the increase of tourists.40. If tourism gets out of control, native Venetians may desert the city altogether one day.41. UNESCO urged the Italian government to undertake its responsibility to protect Venice.42. The participants in the Venetian march used shopping carts to show they were100% local residents.43. Ignoring UNESCO's warning, the mayor of Venice maintains his support of the city’s tourism industry.44. One woman says that for decades the Italian government and local authorities have only focused on the revenues from tourism.45. UNESCO has not yet decided to put Venice on the list of World Heritage Sites In Danger.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.Living in an urban area with green spaces has a long-lasting positive impact on people’s mental well-being, a study has suggested. UK researchers found moving to a green space had a sustained positive effect, unlike pay rises or promotions, which only provided a short-term boost. Co-author Mathew White, from the University of Exeter, UK, explained that the study showed people living in greener urban areas were displaying fewer signs of depression or anxiety. “There could be a number of reasons,” he said,“for example, people do many things to make themselves happier: they strive for promotion or pay rises, or they get married. But the trouble with those things is that within six months to a year, people are back to their original baseline levels of well-being. So, these things are not sustainable; they don’t make us happy in the long term. We found that for some lottery (彩票) winners who had won more than £￡500,000 the positive effect was definitely there, but after six months to a year, they were back to the baseline.”Dr. White said his team wanted to see whether living in greener urban areas had a lasting positive effect on people’s sense of well-being or whether the effect also disappeared after a period of time. To do this, the team used data from the British Household Panel Survey compiled by the University of Essex.Explaining what the data revealed, he said: “What you see is that even after three years, mental health is still better, which is unlike many other things that we thinkwill make us happy.” He observed that people living in green spaces were less stressed, and less stressed people made more sensible decisions and communicated better.With a growing body of evidence establishing a link between urban green spaces and a positive impact on human well-being, Dr. White said, “There’s growing interest among public policy officials, but the trouble is who funds it. What we really need at a policy level is to decide where the money will come from to help support good quality local green spaces.”46. According to one study, what do green spaces do to people?A) Improve their work efficiency.B) Add to their sustained happiness.C) Help them build a positive attitude towards life.D) Lessen their concerns about material well-being.47. What does Dr. White say people usually do to make themselves happier?A) Earn more money. C) Gain fame and popularity.B) Settle in an urban area. D) Live in a green environment.48. What does Dr. White try to find out about living in a greener urban area?A) How it affects different people. C) How long its positive effect lasts.B) How strong its positive effect is. D) How it benefits people physically.49. What did Dr. White's research reveal about people living in a green environment?A) Their stress was more apparent than real. C) Their memories were greatly strengthened.B) Their decisions required less deliberation. D) Their communication with others improved.50. According to Dr. White, what should the government do to build more green spaces in cities?A) Find financial support. C) Involve local residents in the effort.B) Improve urban planning. D) Raise public awareness of the issue.Passage TwoQuestions 51 to 55 are based on the following passage.You probably know about the Titanic, but it was actually just one of three state-of-the-art (先进的) ocean ships back in the day. The Olympic class ships were built by the Harland & Wolff ship makers in Northern Ireland for the White Star Line company. The Olympic class included the Olympic, the Britannic and the Titanic. What you may not know is that the Titanic wasn't even the flagship of this class. All in all, the Olympic class ships were marvels of sea engineering, but they seemed cursed to suffer disastrous fates.The Olympic launched first in 1910, followed by the Titanic in 1911, and lastly the Britannic in 1914. The ships had nine decks, and White Star Line decided to focus on making them the most luxurious ships on the water.Stretching 269.13 meters, the Olympic class ships were wonders of naval technology, and everyone thought that they would continue to be so for quite some time. However, all suffered terrible accidents on the open seas. The Olympic got wrecked before the Titanic did, but it was the only one to survive and maintain a successful career of 24 years. The Titanic was the first to sink after famously hitting a huge iceberg in 1912. Following this disaster, the Britannic hit a naval mine in 1916 and subsequently sank as well.Each ship was coal-powered by several boilers constantly kept running by exhausted crews below deck. Most recognizable of the ship designs are the ship’s smoke stacks, but the fourth stack was actually just artistic in nature and served no functional purpose. While two of these ships sank, they were all designed with double hulls (船体) believed to make them “unsinkable”, perhaps a mistaken idea that led to the Titanic’s and the Britannic’s tragic end.The Olympic suffered two crashes with other ships and went on to serve as a hospital ship andtroop transport in World War I. Eventually, she was taken out of service in 1935, ending the era of the luxurious Olympic class ocean liners.51. What does the passage say about the three Olympic class ships?A) They performed marvellously on the sea.B) They could all break the ice in their way.C) They all experienced terrible misfortunes.D) They were models of modern engineering.52. What did White Star Line have in mind when it purchased the three ships?A) Their capacity of sailing across all waters.B) The utmost comfort passengers could enjoy.C) Their ability to survive disasters of any kind.D) The long voyages they were able to undertake.53. What is said about the fourth stack of the ships?A) It was a mere piece of decoration.B) It was the work of a famous artist.C) It was designed to let out extra smoke.D) It was easily identifiable from afar.54. What might have led to the tragic end of the Titanic and the Britannic?A) Their unscientific designs.B) Their captains’ misjudgment.C) The assumption that they were built with the latest technology.D) The belief that they could never sink with a double-layer body.55. What happened to the ship Olympic in the end?A) She was used to carry troops. C) She was converted into a hospital ship.B) She was sunk in World War I. D) She was retired after her naval service. Part Ⅳ Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese intoEnglish. You should write your answer on Answer Sheet 2.公交车曾是中国人出行的主要交通工具。
2018年6月英语六级真题解析及答案：第2套
2018年6月六级部分真题参考答案(完整版)Part Ⅰ WritingThe Importance of Building Trust between Businesses and ConsumersToday, in the context of this era featured by increasing commercialization and digitalization, mutually-trusted relations between businesses and consumers appear to be particularly important.As for me businesses should take a leading role in establishing the trust relationship: to be honest with their consumers. Firstly, if a business has a dishonest attitude toward its customers, the customers will lack purchasing confidence in its goods or services, which will bring huge economic loss to the business. What's worse, the adverse side effect of such dishonesty can endanger the business and it is impossible to recover. The collapse of Sanlu Milk Powder Company is a testament to this. Moreover, the incident of poisonous milk has exerted devastating consequences on the whole milk powder market. Besides, because of the proliferation of counterfeit goods, more consumers lose confidence in domestic products,and then they have no alternative but to resort to foreign brands, which is one reason why cross-border online shopping is gaining more and more popularity in China.Therefore, it is high time for us to strengthen the importance of maintaining trust between businesses and consumers to promote the healthy development of the whole social economy.Part Ⅱ Listening Comprehension说明：由于2018年6月六级考试全国共考了两套听力，本套真题听力与前2套内容相同，只是选项顺序不同，因此在本套真题中不再重复出现。
2018年6月英语六级真题答案解析(卷二)
2018年6月大学英语六级考试真题(第2套）Part I Writing(30minutes) Directions:For this part,you are allowed30minutes to write an essay commenting on the importance of building trust between teachers and students.You can cite examples to illustrate your views.Youshould write at least150words but no more than200words.Part II Listening Comprehension(30minutes) Section ADirections:In this section,you will hear two long conversations At the end of each conversation,you will hear four questions.Both the conversation and the questions will be spoken only once.After youhear a question,you must choose the best answer from the four choices marked A),B),C)and D).Then mark the corresponding letter on Answer Sheet1with a single line through the centre. Questions1to4are based on the conversation you have just heard.1.A).She advocates animal protection.B).She sells a special kind of coffee.C).She is going to start a cafe chain.D).She is the owner of a special cafe.2.A).They bear a lot of similarities.B).They are a profitable business sector.C).They cater to different customers.D).They help take care of customers'pets.3.A).By giving them regular cleaning and injections.B).By selecting breeds that are tame and peaceful.C).By placing them at a safe distance from customers.D).By briefing customers on how to get along with them.4.A).They want to learn about rabbits.B).They like to bring in their children.C).They love the animals in her cafe.D).They give her cafe favorite reviews. Questions5to8are based on the conversation you have just heard.5.A).It contains too many additives.B).It lacks the essential vitamins.C).It can cause obesity.D).It is mostly garbage.6.A).Its fancy design.B).TV commercials.C).Its taste and texture.D).Peer influence.7.A).Investing heavily in the production of sweet foods.B).Marketing their products with ordinary ingredients.C).Trying to trick children into buying their products.D).Offering children more variable to choose from.8.A).They hardly ate vegetables.B).They seldom had junk food.C).They favored chocolate-coated sweets.D).They like the food advertised on TV.Section BDirections:In this section,you will hear two passages.At the end of each passage,you will hear three or four questions.Both the passage and the questions will be spoken only once.After you hear a question,you must choose the best answer from the four choices marked A),B),C)and D).Then mark the corresponding letter on Answer Sheet1with a single line through the centre.Questions9to11are based on the passage you have just heard.9.A).Stretches of farmland.B).Typical Egyptian animal farms.C).Tombs of ancient rulers.D).Ruins left by devastating floods.10.A).It provides habitats for more primitive tribes.B).It is hardly associated with great civilizations.C).It has not yet been fully explored and exploited.D).It gathers water from many tropical rain forests.11.A).It carries about one fifth of the word'fresh water.B).It has numerous human settlements along its banks.C).It is second only to the Mississippi River in width.D).It is as long as the Nile and the Yangtze combined.Questions12to15are based on the passage you have just heard.12.A).Living a life in the fast lane leads to success.B).We are always in a rush to do various things.C).The search for tranquility has become a trend.D).All of us actually yearn for a slow and calm life.13.A).She had trouble balancing family and work.B).She enjoyed the various social events.C).She was accustomed to tight schedules.D).She spent all her leisure time writing books.14.A).The possibility of ruining her family.B).Becoming aware of her declining health.C).The fatigue from living a fast-paced life.D).Reading a book about slowing down.15.A).She started to follow the cultural norms.B).She came to enjoy doing everyday tasks.C).She learn to use more polite expressions.D).She stopped using to-do lists and calendars. Section CDirections:In this section,you will hear three recordings of lectures or talks followed by three or four questions.The recordings will be played only once.After you hear a question,you must choose the best answer from the four choices marked A),B),C)and D).Then mark the corresponding letter on Answer Sheet1with a single line through the centre.Questions16to18are based on the recording you have just heard.16.A).They will root out native species altogether.B).They contribute to a region's biodiversity.C).They pose a threat to the local ecosystem.D).They will crossbreed with native species.17.A).Their classifications are meaningful.B).Their interactions are hard to define.C).Their definitions are changeable.D).Their distinctions are artificial.18.A).Only a few of them cause problems to nativespecies.B).They may turn to benefit the local environmentC).Few of them can survive in their new habitats.D).Only10percent of them can be naturalized.Questions19to21are based on the recording you have just heard.19.A).Respect their traditional culture.B).Attend their business seminars.C).Research their specific demands.D).Adopt the right business strategies.20.A).Showing them your palm.B).Giving them gifts of great value.C).Drinking alcohol on certain days of a month.D).Clicking your fingers loudly in their presence.21.A).They are very easy to satisfy.B).They have a strong sense of worth.C).They trend to friendly and enthusiastic.D).They have a break from2:00to5:30p.m. Questions22to25are based on the recording you have just heard.22.A).He completely changed the company's culture.B).He collected paintings by world-famous artists.C).He took over the sales department of Reader's Digest.D).He had the company’s boardroom extensively renovated.23.A).It should be sold at a reasonable price.B).Its articles should be short and inspiring.C).It should be published in the world's leading languages.D).Its articles should entertain blue-and pink-collar workers.24.A).He knew how to make the magazine profitable.B).He served as a church minster for many years.C).He suffered many setbacks and misfortunes in his life.D).He treated the employees like members of his family.25.A).It carried many more advertisements.B).George Grune joined it as an ad salesman.C).Several hundred of its employees got fired.D).Its subscriptions increased considerably.Part III Reading Comprehension(40minutes) Section ADirections:In this section,there is a passage with ten blanks.You are required to select one word for each blank from a list of choices given in a word bank following the passage.Read the passage through carefully before making your choices.Each choice in the bank is identified by a letter.Please mark the corresponding letter for each item on Answer Sheet2with a single line through the centre.You may not use any of the words in the bank more than once.Questions26to35are based on the following passage.Did Sarah Josepha Hale write“Mary's Little Lamb,”the eternal nursery rhyme(儿歌)about a girl named Mary with a stubborn lamb?This is still dispute,but it’s clear that the woman26for writing it was one of America's most fascinating27_.In honor of the poem's publication on May24，1830，here’s more about the 28author's life.Hale wasn’t just a writer,she was also a29social advocate,and she was particularly30_with an ideal New England,which she associated with abundant Thanksgiving meals that she claimed had“a deep moral influence.”she began a nationwide31to have a national holiday declared that would bring families together whilecelebrating the32festivals.In1863,after17years of advocacy including letters to five presidents，Hale got it.setting aside the last Thursday in November for President Abraham Lincoln,during the Civil War,issued a33the holiday.The true authorship of“Mary’s Little Lamb”is disputed..According to New England Historical Society,Hale wrote only one part of the poem,but claimed authorship.Regardless of the author,it seems that the poem was 34by a real event.When young Mary Sawyer was followed to school by a lamb in1816,it caused some problems.A bystander named John Roulstone wrote a poem about the event,then,at some point,Hale herself seems35of to have helped write it.However,if a1916piece by her great-niece is to be trusted,Hale claimed for theher life that“Some other people pretended that someone else wrote the poem”.A).campaign B).careerC).characters D).featuresE).fierce F).inspiredG).latter H).obsessedI).proclamation J).rectifiedK).reputed L).restM).supposed N).traditionalO).versatileSection BDirections:In this section,you are going to read a passage with ten statements attached to it.Each statement contains information given in one of the paragraphs.Identify the paragraph from which the information is derived.You may choose a paragraph more than once.Each paragraph is marked with a letter.Answer the questions by marking the corresponding letter on Answer Sheet2.Grow Plants Without Water[A].Ever since humanity began to farm our own food,we've faced the unpredictable rain that is bothfriend and enemy.It comes and goes without much warning,and a field of lush(茂盛的)leafy greens one year can dry up and blow away the next.Food security and fortunes depend on sufficient rain,and nowhere more so than in Africa,where96%of farmland depends on rain instead of the irrigation common in more developed places.It has consequences:South Africa's ongoing drought—the worst in three decades—will cost at least a quarter of its com crop this year.[B].Biologist Jill Farrant of the University of Cape Town in South Africa says that nature has plenty ofanswers for people who want to grow crops in places with unpredictable rainfall.She is hard at work finding a way to take traits from rare wild plants that adapt to extreme dry weather and use them in food crops.As the earth's climate changes and rainfall becomes even less predictable in some places,those answers will grow even more valuable."The type of farming I'm aiming for is literally so that people can survive as it's going to get more and more dry,"Farrant says.[C].Extreme conditions produce extremely tough plants.In the rusty red deserts of South Africa,steep-sided rocky hills called inselbergs rear up from the plains like the bones of the earth.The hills are remnants of an earlier geological era,scraped bare of most soil and exposed to the elements.Yet on these and similar formations in deserts around the world,a few fierce plants have adapted to endure under ever-changing conditions.[D].Farrant calls them resurrection plants(复苏植物).During months without water under a harsh sun.They wither,shrink and contract until they look like a pile of dead gray leaves.But rainfall can revive them in a matter of hours.Her time-lapse(间歇性拍摄的)videos of the revivals look like someone playing a tape of the plant's death in reverse.[E].The big difference between"drought-tolerant"plants and these tough plants:metabolism.Manydifferent kinds of plants have developed tactics to weather dry spells.Some plants store reserves of water to see them through a drought;others send roots deep down to subsurface water supplies.But once these plants use up their stored reserve or tap out the underground supply,they cease growing and start to die.They may be able to handle a drought of some length,and many people use the term "drought tolerant"to describe such plants,but they never actually stop needing to consume water,so Farrant prefers to call them drought resistant.[F].Resurrection plants,defined as those capable of recovering from holding less than0.1grams of waterper gram of dry mass,are different.They lack water-storing structures,and their existence on rock faces prevents them from tapping groundwater,so they have instead developed the ability to change their metabolism.When they detect an extended dry period,they divert their metabolisms,producing sugars and certain stress-associated proteins and other materials in their tissues.As the plant dries, these resources take on first the properties of honey,then rubber,and finally enter a glass-like state that is"the most stable state that the plant can maintain,"Farrant says.That slows the plant's metabolism and protects its dried-out tissues.The plants also change shape,shrinking to minimize the surface area through which their remaining water might evaporate.They can recover from months and years without water,depending on the species.[G].What else can do this dry-out-and-revive trick?Seeds-almost all of them.At the start of her career,Farrant studied.recalcitrant seeds(执拗性种子),"such as avocados,coffee and lychee.While tasty, such seeds are delicate--they cannot bud and grow if they dry out(as you may know if you've ever tried to grow a tree from an avocado pit).In the seed world,that makes them rare,because most seeds from flowering plants are quite robust.Most seeds can wait out the dry,unwelcoming seasons until conditions are right and they sprout(发芽).Yet once they start growing,such plants seem not to retain the ability to hit the pause button on metabolism in their stems or leaves.[H].After completing her Ph.D.on seeds,Farrant began investigating whether it might be possible toisolate the properties that make most seeds so resilient(迅速恢复活力的)and transfer them to other plant tissues.What Farrant and others have found over the past two decades is that there are many genes involved in resurrection plants'response to dryness.Many of them are the same that regulate how seeds become dryness-tolerant while still attached to their parent plants.Now they are trying to figure out what molecular signaling processes activate those seed-building genes in resurrection plants—and how to reproduce them in crops."Most genes are regulated by a master set of genes,"Farrant says."We're looking at gene promoters and what would be their master switch."[I].Once Farrant and her colleagues feel they have a better sense of which switches to throw,they willhave to find the best way to do so in useful crops."I'm trying three methods of breeding,"Farrant says: conventional,genetic modification arid gene editing.She says she is aware that plenty of people donot want to eat genetically modified crops,but she is pushing ahead with every available tool until one works.Farmers and consumers alike can choose whether or not to use whichever versionprevails:"I'm giving people an option."[J].Farrant and others in the resurrection business got together last year to discuss the best species of resurrection plant to use as a lab model.Just like medical researchers use rats to test ideas for human medical treatments,botanists use plants that are relatively easy to grow in a lab or greenhouse setting to test their ideas for related species.The Queensland rock violet is one of the best studied resurrection plants so far,with a draft genome(基因图谱)published last year by a Chinese team.Also last year,Farrant and colleagues published a detailed molecular study of another candidate, Xerophyta viscosa,a tough-as-nail south African plant with lily-like flowers,and she says that a genome is on the way.one or both of these models will help researchers test their ideas—so far mostly done in the lab—on test plots.[K].Understanding the basic science first is key.There are good reasons why crop plants do not use dryness defenses already.For instance,there's a high energy cost in switching from a regular metabolism to an almost-no-water metabolism.It will also be necessary to understand what sort of yield farmers might expect and to establish the plant's safety."The yield is never going to be high,"Farrant says,so these plants will be targeted not at Iowa farmers trying to squeeze more cashout of high-yield fields,but subsistence farmers who need help to survive a drought like the present one in South Africa."My vision is for the subsistence farmer,"Farrant says."I'm targeting crops that are of African value.".36.There are a couple of plants tough and adaptable enough to survive on bare rocky hills and in deserts.37.Farrant is trying to isolate genes in resurrection plants and reproduce them in crops.38.Farmers in South Africa are more at the mercy of nature,especially inconsistent rainfall.39.Resurrection crops are most likely to be the choice of subsistence farmers.40.Even though many plants have developed various tactics to cope with dry weather,they cannot survive a prolonged drought.41.Despite consumer resistance,researchers are pushing ahead with genetic modification of crops.42.Most seeds can pull through dry spells and begin growing when conditions are ripe,but once this process starts,it cannot be held back.43.Farrant is working hard to cultivate food crops that call survive extreme dryness by studying the traits of rare wild plants.44.By adjusting their metabolism,resurrection plants can recover from an extended period of drought.45.Resurrection plants can come back to life in a short time after a rainfall.Section CDirections：There are2passages in this section.Each passage is followed by some questions or unfinished statements.For each of them there are four choices marked A),B),C)and D).You should decide on the best choice and mark the corresponding letter on Answer Sheet2with a single line through the centrepassage oneQuestions46to50are based on the following passage.Human memory is notoriously unreliable.Even people with the sharpest facial-recognition skills can only remember so much.It's tough to quantify how good a person is at remembering.No one really knows how many different faces someone can recall,for example,but various estimates tend to hover in the thousands-based on the number of acquaintances a person might have.Machines aren't limited this way,Give the right computer a massive database of faces,and it can process what it sees-then recognize a face it's told to find-with remarkable speed and precision. This skill is what supports the enormous promise of facial-recognition software in the2lst century. It's also what makes contemporary surveillance systems so scary.The thing is,machines still have limitations when it comes to facial recognition.And scientists are only just beginning to understand what those constraints are.To begin to figure out how computers are struggling,researchers at the University of Washington created a massive database of faces-they call it MegaFace-and tested a variety of facial-recognition algorithms(算法)as they scaled up in complexity.The idea was to test the machines on a database that included up to1 million different images of nearly700,000different people-and not just a large database featuring a relatively small number of different faces,more consistent with what's been used in other research.As the databases grew,machine accuracy dipped across the board.Algorithms that were right 95%of the time when they were dealing with a13,000-image database,for example,were accurate about70%of the time when confronted with1million images.That's still pretty good,says one of the researchers,Ira Kemelmacher-Shlizerman."Much better than we expected,"she said.Machines also had difficulty adjusting for people who look a lot alike-either doppelgangers(长相极相似的人),whom the machine would have trouble identifying as two separate people,or the same person who appeared in different photos at different ages or in different lighting,whom themachine would incorrectly view as separate people."Once we scale up,algorithms must be sensitive to tiny changes in identities and at the same time invariant to lighting,pose,age,"Kemelmacher-Shlizerman said.The trouble is,for many of the researchers who'd like to design systems to address these challenges,massive datasets for experimentation just don't exist--at least,not in formats that are accessible to academic researchers.Training sets like the ones Google and Facebook have are private.There are no public databases that contain millions of faces.MegaFace's creators say it's the largest publicly available facial-recognition dataset out there.“An ultimate face recognition algorithm should perform with billions of people in a dataset,”the researchers wrote.pared with human memory,machines can.A)identify human faces more efficientlyB)tell a friend from a mere acquaintanceC)store an unlimited number of human facesD)perceive images invisible to the human eye47.Why did researchers create MegaFace?A)To enlarge the volume of the facial-recognition databaseB)To increase the variety of facial-recognition softwareC)To understand computers'problems with facial recognitionD)To reduce the complexity of facial-recognition algorithms48.What does the passage say about machine accuracy?A)It falls short of researchers'expectations.B)It improves with added computing power.C)It varies greatly with different algorithms.D)It decreases as the database size increases.49.What is said to be a shortcoming of facial-recognition machines?A)They cannot easily tell apart people with near-identical appearances.B)They have difficulty identifying changes in facial expressionsC)They are not sensitive to minute changes in people's moodD)They have problems distinguishing people of the same age50.What is the difficulty confronting researchers of facial-recognition machines?A)No computer is yet able to handle huge datasets of human facesB)There do not exist public databases with sufficient face samplerC)There are no appropriate algorithms to process the face samplesD)They have trouble converting face datasets into the right format.Passage TwoQuestions51to55are based on the following passage.There’re currently21.5million students in America,and many will be funding their college on borrowed money.Given that there's now over$1.3trillion in student loans on the books,it's prettyapproaches$40,000,and as college becomes ever more expensive,calls to make it"free"are multiplying.Even Hillary Clinton says that when it comes to college,"Costs won't be a barrier."But the only way college could be free is if the faculty and staff donated their time,the buildings required no maintenance,and campuses required no utilities.As long as it's impossible to produce something from nothing costs are absolutely a barrier.The actual question we debate is who should pay for people to go to college.If taxpayers are to bear the cost of forgiving student loans,shouldn't they have a say in how their money is used?At least taxpayers should be able to decide what students will study on the public dime.If we're going to force taxpayers to foot the bill for college degrees,students should only study those subjects that’re of greatest benefit to taxpayers.After all,students making their own choices in this respect is what caused the problem in the first place.We simply don't need more poetry,gender studies,or sociology majors.How do we know which subjects benefit society?Easy.Average starting salaries give a clear indication of what type of training society needs its new workers to have.Certainly,there're benefits to a college major beyond the job a student can perform.But if we're talking about the benefits to society,the only thing that matters is what the major enables the student to produce for society.And the value of what the student can produce is reflected in the wage employers are willing to pay the student to produce it.A low wage for elementary school teachers,however,doesn't mean elementary education isn’t important.It simply means there're too many elementary school teachers already.Meanwhile,there're few who're willing and able to perform jobs requiring a petroleum engineering major,so the value of one more of those people is very highSo we can have taxpayers pick up students'tuition in exchange for dictating what those students will study.Or we can allow students both to choose their majors and pay for their education themselves.But in the end,one of two things is true:Either a college major is worth its cost or it isn't.If yes,taxpayer financing isn't needed If not taxpayer financing isn't desirable.Either way,taxpayers have no business paying for students' college education.51.What does the author think of college students funding their education through loans?A)They only expect to get huge returns.C)They benefit at taxpayers expense.B)They are acting in an irrational way.D)They will regret doing so someday.52.In the author's opinion,free college education is.A)impractical B)unsustainableC)a goal to strive for D)a way to social equality53.What should students do if taxpayers are to bear their college costs?A)Work even harder to repay society.B)Choose their subjects more carefully.C)Choose majors that will serve society's practical need.D)Allow taxpayers to participate in college administration.54.What does the author say about the value of a student's college education?A)It is underestimated by profit-seeking employers.B)It is to be proved by what they can do on the job.C)It is well reflected in their average starting salary.D)It is embodied in how they remove social barriers.55.What message does the author want to convey in the passage?A)Students should think care fully whether to go to collegeB)Taxpayers should only finance the most gifted students.C)The worth of a college education is open to debate.D)College students should fund their own education..Part I Translation(30minutes) Directions：For this part,you are allowed30minutes to translate a passage from Chinese into English.You should write your answer on Answer Sheet2.中国目前拥有世界上最大最快的高速铁路网。
2018年6月大学生英语四级真题试卷及详细答案(第二套)
2018年6月大学生英语四级真题试卷及详细答案(第二套)目录2018年6月大学生英语四级真题试卷二详细答案(完整版) (1)2018年6月大学生英语四级真题试卷二(完整版) (46)快速对答案 (60)2018年6月大学生英语四级真题试卷二详细答案(完整版)Part I Writing(30minutes) (请于正式开考后半小时内完成该部分，之后将进行听力考试)Directions:For this part,you are allowed30minutes to write an a short easy on the importance of speaking ability and how to develop it.You should write at least120words but no more than180words.【解析】写作题考察了同学们的写作能力，要求在30分钟内完成，时间有限，因此在备战英语四级的时候，平时应积累一些模版，多背一些精彩的句子，在平时的练习中，应该在20分钟内完成一篇不少于120词的作文，下面给出以下几点建议：一，写作中，字体要工整，改卷老师在批改四级作文的时候，由于任务量大，再加上批改时视觉疲劳，不可能对每一篇作文都看得那么仔细，有时候就凭卷面的第一印象打分，因此字体美观大方能提高作文的分数；二，注意段落结构，写作时，应带有题目，一般分三段进行，第一段总体概述，引出正文，第二段详细阐述文档内容，要分条理进行，比如，firstly，secondly，等，正文一般4-6句话阐述完毕，第三段总结正文部分，回归主题。
三，写作要注重语法结构，不要出现明显的语法错误，否则扣分较多，影响总体成绩。
四，遇到不会写的词，要用其他相关的词语表达。
Part II Listening Comprehension(25minutes) Section ADirections:In this section,you will hear three news reports.At the end of each news report,you willhear two or three questions.Both the news report and questions will be spoken only once.After you hear questions,you must choose the best answer from the four choices marked A),B),C)and D).Then mark the corresponding letter on Answer Sheet1with a single line through the centre.注意：此部分试题请在答题卡1上作答。
英语六级考试真题试卷完整版第套
2018年6月英语六级考试真题试卷附答案（完整版第2套）Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write an essay on the importance of building trust between teachers and students. You can cite examples to illustrate your views. You should write at least 150 words but no more than 200 words._______________________________________________________________ _______________________________________________________________ _______________________________________________________________ ___________________________Part II Listening Comprehension (30 minutes)Section ADirections: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 to 4 are based on the conversation you have just heard.1. A) She advocates animal protection.B) She sells a special kind of coffee.C) She is going to start a café chain.D) She is the owner of a special café.2. A) They bear a lot of similarities.B) They are a profitable business sector.C) They cater to different customers.D) They help take care of customers' pets.3. A) By giving them regular cleaning and injections.B) By selecting breeds that are tame and peaceful.C) By placing them at a safe distance from customers.D) By briefing customers on how to get along with them.4. A) They want to learn about rabbits.B) They like to bring in their children.C) They love the animals in her café.D) They give her café favorite reviews.Questions 5 to 8 are based on the conversation you have just heard.5. A) It contains too many additives.B) It lacks the essential vitamins.C) It can cause obesity.D) It is mostly garbage.6. A) Its fancy design.B) TV commercials.C) Its taste and texture.D) Peer influence.7. A) Investing heavily in the production of sweet foods.B) Marketing their products with ordinary ingredients.C) Trying to trick children into buying their products.D) Offering children more varieties to choose from.8. A) They hardly ate vegetables.B) They seldom had junk food.C) They favored chocolate-coated sweets.D) They liked the food advertised on TV.Section BDirections: In this section, you will hear two passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 9 to 11 are based on the passage you have just heard.9. A) Stretches of farmland.B) Typical Egyptian animal farms.C) Tombs of ancient rulers.D) Ruins left by devastating floods.10. A) It provides habitats for more primitive tribes.B) It is hardly associated with great civilizations.C) It has not yet been fully explored and exploited.D) It gathers water from many tropical rain forests.11. A) It carries about one fifth of the world's fresh water.B) It has numerous human settlements along its banks.C) It is second only to the Mississippi River in width.D) It is as long as the Nile and the Yangtze combined. Questions 12 to 15 are based on the passage you have just heard.12. A) Living a life in the fast lane leads to success.B) We are always in a rush to do various things.C) The search for tranquility has become a trend.D) All of us actually yearn for a slow and calm life.13. A) She had trouble balancing family and work.B) She enjoyed the various social events.C) She was accustomed to tight schedules.D) She spent all her leisure time writing books.14. A) The possibility of ruining her family.B) Becoming aware of her declining health.C) The fatigue from living a fast-paced life.D) Reading a book about slowing down.15. A) She started to follow the cultural norms.B) She came to enjoy doing everyday tasks.C) She learned to use more polite expressions.D) She stopped using to-do lists and calendars.Section CDirections: In this section, you will hear three recordings of lectures or talks followed by three or four questions. The recordings will be played only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through centre.Questions 16 to 18 are based on the recording you have just heard.16. A) They will root out native species altogether.B) They contribute to a region's biodiversity.C) They pose a threat to the local ecosystem.D) They will crossbreed with native species.17. A) Their classifications are meaningful.B) Their interactions are hard to define.C) Their definitions are changeable.D) Their distinctions are artificial.18. A) Only a few of them cause problems to native species.B) They may turn out to benefit the local environment.C) Few of them can survive in their new habitats.D) Only 10 percent of them can be naturalized.Questions 19 to 21 are based on the recording you have just heard.19. A) Respect their traditional culture.B) Attend their business seminars.C) Research their specific demands.D) Adopt the right business strategies.20. A) Showing them your palm.B) Giving them gifts of great value.C) Drinking alcohol on certain days of a month.D) Clicking your fingers loudly in their presence.21. A) They are very easy to satisfy.B) They have a strong sense of worth.C) They tend to be friendly and enthusiastic.D) They have a break from 2:00 to 5:30 .Questions 22 to 25 are based on the recording you have just heard.22. A) He completely changed the company's culture.B) He collected paintings by world-famous artists.C) He took over the sales department of Reader's Digest.D) He had the company's boardroom extensively renovated.23. A) It should be sold at a reasonable price.B) Its articles should be short and inspiring.C) It should be published in the world's leading languages.D) Its articles should entertain blue- and pink-collar workers.24. A) He knew how to make the magazine profitable.B) He served as a church minister for many years.C) He suffered many setbacks and misfortunes in his life.D) He treated the employees like members of his family.25. A) It carried many more advertisements.B) George Grune joined it as an ad salesman.C) Several hundred of its employees got fired.D) Its subscriptions increased considerably.Part III Reading Comprehension (40 minutes)Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list ofchoices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.Did Sarah Josepha Hale write "Mary's Little Lamb," the eternal nursery rhyme (儿歌) about a girl named Mary with a stubborn lamb This is still disputed, but it's clear that the woman 26 for writing it was one of America's most fascinating 27 . In honor of the poem's publication on May 24, 1830, here's more about the 28 author's life. Hale wasn't just a writer, she was also a 29 social advocate, and she was particularly 30 with an ideal New England, which she associated with abundant Thanksgiving meals that she claimed had "a deep moral influence." She began a nationwide 31 to have a national holiday declared that would bring families together while celebrating the 32 festivals. In 1863, after 17 years of advocacy including letters to five presidents, Hale got it. President Abraham Lincoln, during the Civil War, issued a 33 setting aside the last Thursday in November for the holiday.The true authorship of "Mary's Little Lamb" is disputed. According to the New England Historical Society, Hale wrote only part of thepoem, but claimed authorship. Regardless of the author, it seems that the poem was 34 by a real event. When young Mary Sawyer was followed to school by a lamb in 1816, it caused some problems. A bystander named John Roulstone wrote a poem about the event, then, at some point, Hale herself seems to have helped write it. However, if a 1916 piece by her great-niece is to be trusted, Hale claimed for the 35 of her life that "some other people pretended that someone else wrote the poem".A) campaign B) career C) characters D) features E) fierce F) inspired G) latter H) obsessed I) proclamation J) rectified K) reputed L) rest M) supposed N) traditional O) versatileSection BDirections: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.Grow Plants Without WaterA) Ever since humanity began to farm our own food, we’ve faced the unpredictable rain that is both friend and enemy. It comes and goes without much warning, and a field of lush (茂盛的) leafy greens one year can dry up and blow away the next. Food security and fortunes depend on sufficient rain, and nowhere more so than in Africa, where 96% of farmland depends on rain instead of the irrigation common in more developed places. It has consequences: South Africa's ongoing drought—the worst in three decades—will cost at least a quarter of its corn crop this year.B) Biologist Jill Farrant of the University of Cape Town in South Africa says that nature has plenty of answers for people who want to grow crops in places with unpredictable rainfall. She is hard at work finding a way to take traits from rare wild plants that adapt to extreme dry weather and use them in food crops. As the earth's climate changes and rainfall becomes even less predictable in some places, those answers will grow even more valuable. "The type of farming I'm aiming for is literally so that people can survive as it's going to get more and more dry," Farrant says.C) Extreme conditions produce extremely tough plants. In the rusty red deserts of South Africa, steep-sided rocky hills called inselbergs rear up from the plains like the bones of the earth. Thehills are remnants of an earlier geological era, scraped bare of most soil and exposed to the elements. Yet on these and similar formations in deserts around the world, a few fierce plants have adapted to endure under ever-changing conditions.D) Farrant calls them resurrection plants (复苏植物). During months without water under a harsh sun, they wither, shrink and contract until they look like a pile of dead gray leaves. But rainfall can revive them in a matter of hours. Her time-lapse (间歇性拍摄的) videos of the revivals look like someone playing a tape of the plant's death in reverse.E) The big difference between "drought-tolerant" plants and these tough plants: metabolism. Many different kinds of plants have developed tactics to weather dry spells. Some plants store reserves of water to see them through a drought; others send roots deep down to subsurface water supplies. But once these plants use up their stored reserve or tap out the underground supply, they cease growing and start to die. They may be able to handle a drought of some length, and many people use the term "drought tolerant" to describe such plants, but they never actually stop needing to consume water, so Farrant prefers to call them drought resistant.F) Resurrection plants, defined as those capable of recovering fromholding less than grams of water per gram of dry mass, are different. They lack water-storing structures, and their existence on rock faces prevents them from tapping groundwater, so they have instead developed the ability to change their metabolism. When they detect an extended dry period, they divert their metabolisms, producing sugars and certain stress-associated proteins and other materials in their tissues. As the plant dries, these resources take on first the properties of honey, then rubber, and finally enter a glass-like state that is "the most stable state that the plant can maintain," Farrant says. That slows the plant's metabolism and protects its dried-out tissues. The plants also change shape, shrinking to minimize the surface area through which their remaining water might evaporate. They can recover from months and years without water, depending on the species.G) What else can do this dry-out-and-revive trick Seeds—almost all of them. At the start of her career, Farrant studied "recalcitrant seeds (顽拗性种子)," such as avocados, coffee and lychee. While tasty, such seeds are delicate—they cannot bud and grow if they dry out (as you may know if you've ever tried to grow a tree from an avocado pit). In the seed world, that makes them rare, because most seeds from flowering plants are quite robust. Most seeds can wait out the dry, unwelcoming seasons until conditions are rightand they sprout (发芽). Yet once they start growing, such plants seem not to retain the ability to hit the pause button on metabolism in their stems or leaves.H) After completing her Ph. D. on seeds, Farrant began investigating whether it might be possible to isolate the properties that make most seeds so resilient (迅速恢复活力的) and transfer them to other plant tissues. What Farrant and others have found over the past two decades is that there are many genes involved in resurrection plants' response to dryness. Many of them are the same that regulate how seeds become dryness-tolerant while still attached to their parent plants. Now they are trying to figure out what molecular signaling processes activate those seed-building genes in resurrection plants—and how to reproduce them in crops. "Most genes are regulated by a master set of genes," Farrant says. "We're looking at gene promoters and what would be their master switch."I) Once Farrant and her colleagues feel they have a better sense of which switches to throw, they will have to find the best way to do so in useful crops. "I'm trying three methods of breeding," Farrant says: conventional, genetic modification and gene editing. She says she is aware that plenty of people do not want to eat genetically modified crops, but she is pushing ahead with everyavailable tool until one works. Farmers and consumers alike can choose whether or not to use whichever version prevails： "I'm giving people an option."J) Farrant and others in the resurrection business got together last year to discuss the best species of resurrection plant to use as a lab model. Just like medical researchers use rats to test ideas for human medical treatments, botanists use plants that are relatively easy to grow in a lab or greenhouse setting to test their ideas for related species. The Queensland rock violet is one of the best studied resurrection plants so far, with a draft genome (基因图谱) published last year by a Chinese team. Also last year, Farrant and colleagues published a detailed molecular study of another candidate, Xerophyta viscosa, a tough-as-nail South African plant with lily-like flowers, and she says that a genome is on the way. One or both of these models will help researchers test their ideas—so far mostly done in the lab—on test plots.K) Understanding the basic science first is key. There are good reasons why crop plants do not use dryness defenses already. For instance, there's a high energy cost in switching from a regular metabolism to an almost-no-water metabolism. It will also be necessary to understand what sort of yield farmers might expect andto establish the plant's safety. "The yield is never going to be high," Farrant says, so these plants will be targeted not at Iowa farmers trying to squeeze more cash out of high-yield fields, but subsistence farmers who need help to survive a drought like the present one in South Africa. "My vision is for the subsistence farmer," Farrant says. "I'm targeting crops that are of African value."36. There are a couple of plants tough and adaptable enough to survive on bare rocky hills and in deserts.37. Farrant is trying to isolate genes in resurrection plants and reproduce them in crops.38. Farmers in South Africa are more at the mercy of nature, especially inconsistent rainfall.39. Resurrection crops are most likely to be the choice of subsistence farmers.40. Even though many plants have developed various tactics to cope with dry weather, they cannot survive a prolonged drought.41. Despite consumer resistance, researchers are pushing ahead with genetic modification of crops.42. Most seeds can pull through dry spells and begin growing when conditions are ripe, but once this process starts, it cannot be held back.43. Farrant is working hard to cultivate food crops that can survive extreme dryness by studying the traits of rare wild plants.44. By adjusting their metabolism, resurrection plants can recover from an extended period of drought.45. Resurrection plants can come back to life in a short time aftera rainfall.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.Human memory is notoriously unreliable. Even people with the sharpest facial-recognition skills can only remember so much.It's tough to quantify how good a person is at remembering. No one really knows how many different faces someone can recall, for example, but various estimates tend to hover in the thousands—based on the number of acquaintances a person might have.Machines aren't limited this way. Give the right computer a massive database of faces, and it can process what it sees—then recognize a face it's told to find—with remarkable speed and precision. This skill is what supports the enormous promise of facial-recognition software in the 21st century. It's also what makes contemporary surveillance systems so scary.The thing is, machines still have limitations when it comes to facial recognition. And scientists are only just beginning to understand what those constraints are. To begin to figure out how computers are struggling, researchers at the University of Washington created a massive database of faces—they call it MegaFace—and tested a variety of facial-recognition algorithms (算法) as they scaled up in complexity. The idea was to test the machines on a database that included up to 1 million different images of nearly 700,000 different people—and not just a large database featuring a relatively small number of different faces, more consistent with what's been used in other research.As the databases grew, machine accuracy dipped across the board. Algorithms that were right 95% of the time when they were dealing with a 13,000-image database, for example, were accurate about 70% of the time when confronted with 1 million images. That's still pretty good, says one of the researchers, Ira Kemelmacher-Shlizerman. "Much better than we expected," she said. Machines also had difficulty adjusting for people who look a lot alike—either doppelgangers (长相极相似的人), whom the machine would have trouble identifying as two separate people, or the same person who appeared in different photos at different ages or in different lighting, whom the machine would incorrectly view as separate people."Once we scale up, algorithms must be sensitive to tiny changes in identities and at the same time invariant to lighting, pose, age," Kemelmacher-Shlizerman said.The trouble is, for many of the researchers who'd like to design systems to address these challenges, massive datasets for experimentation just don't exist—at least, not in formats that are accessible to academic researchers. Training sets like the ones Google and Facebook have are private. There are no public databases that contain millions of faces. MegaFace's creators say it's thelargest publicly available facial-recognition dataset out there. "An ultimate face recognition algorithm should perform with billions of people in a dataset," the researchers wrote.46. Compared with human memory, machines can ________.A) identify human faces more efficientlyB) tell a friend from a mere acquaintanceC) store an unlimited number of human facesD) perceive images invisible to the human eye47. Why did researchers create MegaFaceA) To enlarge the volume of the facial-recognition database.B) To increase the variety of facial-recognition software.C) To understand computers' problems with facial recognition.D) To reduce the complexity of facial-recognition algorithms.48. What does the passage say about machine accuracyA) It falls short of researchers' expectations.B) It improves with added computing power.C) It varies greatly with different algorithms.D) It decreases as the database size increases.49. What is said to be a shortcoming-of facial-recognition machinesA) They cannot easily tell apart people with near-identical appearances.B) They have difficulty identifying changes in facial expressions.C) They are not sensitive to minute changes in people's mood.D) They have problems distinguishing people of the same age.50. What is the difficulty confronting researchers of facial-recognition machinesA) No computer is yet able to handle huge datasets of human faces.B) There do not exist public databases with sufficient face samples.C) There are no appropriate algorithms to process the face samples.D) They have trouble converting face datasets into the right format. Passage TwoQuestions 51 to 55 are based on the following passage.There're currently million students in America, and many will be funding their college on borrowed money. Given that there's now over $ trillion in student loans on the books, it's pretty clear that many students are far from sensible. The average student's debt upon graduation now approaches $40,000, and as college becomes ever more expensive, calls to make it "free" are multiplying. Even Hillary Clinton says that when it comes to college, "Costs won't be a barrier."But the only way college could be free is if the faculty and staff donated their time, the buildings required no maintenance, and campuses required no utilities. As long as it's impossible to produce something from nothing, costs are absolutely a barrier. The actual question we debate is who should pay for people to go to college. If taxpayers are to bear the cost of forgiving student loans, shouldn't they have a say in how their money is usedAt least taxpayers should be able to decide what students will study on the public dime. If we're going to force taxpayers to foot the bill for college degrees, students should only study those subjects that're of greatest benefit to taxpayers. After all, students making their own choices in this respect is what caused the problem in the first place. We simply don't need more poetry, gender studies, orsociology majors. How do we know which subjects benefit society Easy.Average starting salaries give a clear indication of what type of training society needs its new workers to have. Certainly, there're benefits to a college major beyond the job a student can perform. But if we're talking about the benefits to society, the only thing that matters is what the major enables the student to produce for society. And the value of what the student can produce is reflected in the wage employers are willing to pay the student to produce it.A low wage for elementary school teachers, however, doesn't mean elementary education isn't important. It simply means there're too many elementary school teachers already.Meanwhile, there're few who're willing and able to perform jobs requiring a petroleum engineering major, so the value of one more of those people is very high.So we can have taxpayers pick up students' tuition in exchange for dictating what those students will study. Or we can allow students both to choose their majors and pay for their education themselves. But in the end, one of two things is true:Either a college major is worth its cost or it isn't. If yes, taxpayerfinancing isn't needed. If not, taxpayer financing isn't desirable. Either way, taxpayers have no business paying for students' college education.51. What does the author think of college students funding their education through loansA) They only expect to get huge returns.B) They are acting in an irrational way.C) They benefit at taxpayers' expense.D) They will regret doing so someday.52. In the author's opinion, free college education is ________.A) impracticalB) unsustainableC) a goal to strive forD) a way to social equality53. What should students do if taxpayers are to bear their college costsA) Work even harder to repay society.B) Choose their subjects more carefully.C) Choose majors that will serve society's practical needs.D) Allow taxpayers to participate in college administration.54. What does the author say about the value of a student's college educationA) It is underestimated by profit-seeking employers.B) It is to be proved by what they can do on the job.C) It is well reflected in their average starting salary.D) It is embodied in how they remove social barriers.55. What message does the author want to convey in the passageA) Students should think carefully whether to go to college.B) Taxpayers should only finance the most gifted students.C) The worth of a college education is open to debate.D) College students should fund their own education.Part IV Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translatea passage from Chinese into English. You should write your answer on Answer Sheet 2.中国目前拥有世界上最大最快的高速铁路网。