2017大学英语六级听力改革练习题三
2017年大学英语六级三套真题 答案解析
2017 年6 月大学英语六级考试真题(第1 套)Part ⅠWriting (30 minutes)Directions: Suppose you are asked to give advice on whether to attend a vocational college or a university, write an essay to state your opinion. You are required to write at least 150 words but no morethan 200 words.Part ⅡListening 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. Afteryou 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 thecentre.Questions 1 to 4 are based on the conversation you have just heard.1.A) He would feel insulted. B) He would feel very sad.C) He would be embarrassed. D) He would be disappointed.2.A) They are worthy of a prize. B) They are of little value.C)They make good reading. D) They need improvement.3.A) He seldom writes a book straight through.B)He writes several books simultaneously.C)He draws on his real-life experiences.D)He often turns to his wife for help.4.A) Writing a book is just like watching a football match.B)Writers actually work every bit as hard as footballers.C)He likes watching a football match after finishing a book.D)Unlike a football match, there is no end to writing a book.Questions 5 to 8 are based on the conversation you have just heard.5.A) A chievements of black male athletes in college.B)Financial assistance to black athletes in college.C)High college dropout rates among black athletes.D)Undergraduate enrollments of black athletes.6.A) They display great talent in every kind of game.B)They are better at sports than at academic work.C)They have difficulty finding money to complete their studies.D)They make money for the college but often fail to earn a degree.7.A) About 15%. B) Around 40%.C)Slightly over 50%. D) Approximately 70%.8.A) Coaches lack the incentive to graduate them.B)College degrees do not count much to them.C)They have little interest in academic work.D)Schools do not deem it a serious problem.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 12 are based on the passage you have just heard.9.A) Marketing strategies. B) Holiday shopping.C) Shopping malls. D) Online stores.10.A) About 50% of holiday shoppers.B)About 20-30% of holiday shoppers.C)About 136 million.D)About 183.8 million.11.A) They have fewer customers.B)They find it hard to survive.C)They are thriving once more.D)They appeal to elderly customers.12.A) Better quality of consumer goods.B)Higher employment and wages.C)Greater varieties of commodities.D)People having more leisure time.Questions 13 to 15 are based on the passage you have just heard.13.A) They are new species of big insects.B)They are overprescribed antibiotics.C)They are life-threatening diseases.D)They are antibiotic-resistant bacteria.14.A) Antibiotics are now in short supply.B)Many infections are no longer curable.C)Large amounts of tax money are wasted.D)Routine operations have become complex.15.A) Facilities.B)Expertise.C)Money.D)Publicity.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 choosethe best answer from the four choices marked A), B), CJ and D). Then mark the correspondingletter on Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the recording you have just heard.16.A) It is accessible only to the talented.B)It improves students’ ability to t hink.C)It starts a lifelong learning process.D)It gives birth to many eminent scholars.17.A) They encourage academic democracy.B)They promote globalization.C)They uphold the presidents’ authority.D)They protect students’rights.18.A) His thirst for knowledge. B) His eagerness to find a job.C) His contempt for authority. D) His potential for leadership.Questions 19 to 22 are based on the recording you have just heard.19.A) Few people know how to retrieve information properly.B)People can enhance their memory with a few tricks.C)Most people have a rather poor long-term memory.D)People tend to underestimate their mental powers.20.A) They present the states in a surprisingly different order.B)They include more or less the same number of states.C)They are exactly the same as is shown in the atlas.D)They contain names of the most familiar states.21.A) Focusing on what is likely to be tested.B)Having a good sleep the night before.C)Reviewing your lessons where the exam is to take place.D)Making sensible decisions while choosing your answers.22.A) Discover when you can learn best.B) Change your time of study daily.B)Give yourself a double bonus afterwards.D) Follow the example of a marathon runner.Questions 23 to 25 are based on the recording you have just heard.23.A) He is a politician. B) He is a businessman.C)He is a sociologist. D) He is an economist.24.A) In slums.B)In Africa.C)In pre-industrial societies.D)In developing countries.25.A) They have no access to health care, let alone entertainment or recreation.B)Their income is less than 50% of the national average family income.C)They work extra hours to have their basic needs met.D)Their children cannot afford to go to private schools.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 passagethrough 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 linethrough the centre. You may not use any of the words in the bank more than once. Questions 26 to 35 are based on the following passage.Let’s all stop judging people who talk to themselves. New research says that those who can’t seem to keep their inner monologues( 独白) in are actually more likely to stay on task, remain 26 better and show improved perception capabilities. Not bad, really, for some extra muttering.According to a series of experiments published in the Quarterly Journal of Experimental Psychology by professors Gary Lupyan and Daniel Swignley, the act of using verbal clues to 27 mental pictures helps people function quicker.In one experiment, they showed pictures of various objects to twenty 28 and asked them to find just one of those, a banana. Half were 29 to repeat out loud what they were looking for and the other half kept their lips 30 . Those who talked to themselves found the banana slightly faster than those whodidn’t，the researchers say. In other experiments, Lupyan and Swignley found that 31 the name of acommon product when on the hunt for it helped quicken someone’s pace, but talking about uncommon items showed no advantage and slowed you down.Common research has long held that talking themselves through a task helps children learn, although doing so when you’ve 32 matured is not a great sign of 33 . The two professors hope to refute that idea, 34 that just as when kids walk themselves through a process, adults can benefit from using language not just to communic ate, but also to help “augment thinking”.Of course, you are still encouraged to keep the talking at library tones and, whatever you do, keep the information you share simple, like a grocery list. At any 35 , there’s still such a thing as too much information.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 fromwhich the information is derived. You may choose a paragraph more than once.Eachparagraph is marked with a letter. Answer the questions by marking the correspondingletter on Answer Sheet 2.Rich Children and Poor Ones Are Raised Very Differently[A]The lives of children from rich and poor American families look more different than ever before.[B]Well-off families are ruled by calendars, with children enrolled in ballet, soccer and after-school programs, according to a new Pew Research Center survey. There are usually two parents, who spend a lotof time reading to children and worrying about their anxiety levels and hectic schedules.[C]In poor families, meanwhile, children tend to spend their time at home or with extended family. They are more likely to grow up in neighborhoods that their parents say aren’t great for raising children, and their parents worry about them getting shot, beaten up or in trouble with the law.[D]The class differences in child rearing are growing — a symptom of widening inequality withfar-reaching consequences. Different upbringings set children on different paths and can deepen socioeconomic divisions, especially because education is strongly linked to earnings. Children grow uplearning the skills to succeed in their socioeconomic stratum (阶层), but not necessarily others.[E]“Early childhood experiences can be very consequential for children’s long-term social, emotional and cognitive development,” said Sean Reardon, professor of poverty and inequality in education at Stanford Universi ty. “And because those influence educational success and later earnings, early childhood experiences cast a lifelong shadow.” The cycle continues: Poorer parents have less time and fewer resources to invest in their children, which can leave children less prepared for school and work, which leads to lower earnings.[F]American parents want similar things for their children, the Pew report and past research have found: for them to be healthy and happy, honest and ethical, caring and compassionate. There is no best parenting style or philosophy, researchers say, and across income groups, 92% of parents say they are doing a good job at raising their children. Yet they are doing it quite differently. Middle-class and higher- income parents see their children as projects in need of careful cultivation, says Annette Lareau, whose groundbreaking research on the topic was published in her book Unequal Childhoods: Class, Race and Family Life. They try to develop their skills through close supervision and organized activities, and teach children to question authority figures and navigate elite i nstitutions.[G]Working-class parents, meanwhile, believe their children will naturally thrive, and give them far greater independence and time for free play. They are taught to be compliant and respectful to adults. There are benefits to both approaches. Working-class children are happier, more independent, complain less and are closer with family members, Ms. Lareau found. Higher-income children are more likely to declare boredom and expect their parents to solve their problems. Yet later on, the more affluent children end up in college and on the way to the middle class, while working-class children tend to struggle. Children from higher-income families are likely to have the skills to navigate bureaucracies and succeed in schools and workplaces, Ms. Lareau said.[H]“Do all parents want the most success for their children? Absolutely,” she said. “Do some strategies give children more advantages than others in institutions? Probably they do. Will parents be damaging children if they have one fewer organized activity? No, I really doubt i t.”[I]Social scientists say the differences arise in part because low-income parents have less money to spend on music class or preschool, and less flexible schedules to take children to museums or attend school events. Extracurricular activities reflect the differences in child rearing in the Pew survey, which was of a nationally representative sample of 1,807 parents. Of families earning more than $75,000 a year, 84% say their children have participated in organized sports over the past year, 64% have done volunteer work and 62% have taken lessons in music, dance or art. Of families earning less than $30,000, 59% of children have done sports, 37% have volunteered and 41% have taken arts classes.[J]Especially in affluent families, children start young. Nearly half of high-earning, college-graduate parents enrolled their children in arts classes before they were 5, compared with one-fifth of low-income, less- educated parents. Nonetheless, 20% of well-off parents say their children’s schedules are too hectic, compared with 8% of poorer parents.[K]Another example is reading aloud, which studies have shown gives children bigger vocabularies and better reading comprehension in school. 71% of parents with a college degree say they do it every day, compared with 33% of those with a high school diploma or less. White parents are more likely than others to read to their children daily, as are married parents. Most affluent parents enroll their children in preschool or day care, while low-income parents are more likely to depend on family members. Discipline techniques vary by education level: 8% of those with a postgraduate degree say they often beat their children, compared with 22% of those with a high school degree or less.[L]The survey also probed attitudes and anxieties. Interestingly, parents’ attitudes toward education do not seem to reflect their own educational background as much as a belief in the importance of education for upward mobility. Most American parents say they are not concerned about their children’s grades as long as they work hard. But 50% of poor parents say it is extremely important to them that their children earn a college degree, compared with 39% of wealthier parents.[M]Less-educated parents, and poorer and black and Latino parents are more likely to believe that there is no such thing as too much involvement in a child’s education. Parents who are white, wealthy or college- educated say too much involvement can be bad. Parental anxieties reflect their circumstances. High- earning parents are much more likely to say they live in a good neighborhood for raising children. While bullying is parents’ greatest concern over all, nearly half of low-income parents worry their child will get shot, compared with one-fifth of high-income parents. They are more worried about their children being depressed or anxious.[N]In the Pew survey, middle-class families earning between $30,000 and $75,000 a year fell right between working-class and high-earning parents on issues like the quality of their neighborhood for raising children, participation in extracurricular activities and involvement in their children’ s education.[O]Children were not always raised so differently. The achievement gap between children from high- and low-income families is 30-40% larger among children born in 2001 than those born 25 years earlier, according to Mr. Reardon’ s research. People used to live near people of different income levels; neighborhoods are now more segregated by income. More than a quarter of children live in single-parent households — a historic high, according to Pew 一and these children are three times as likely to live in poverty as those who live with married parents. Meanwhile, growing income inequality has coincided with the increasing importance of a college degree for earning a middle-class w age.[P]Yet there are recent signs that the gap could be starting to shrink. In the past decade, even as income inequality has grown, some of the socioeconomic differences in parenting, like reading to children and going to libraries, have narrowed.[Q]Public policies aimed at young children have helped, including public preschool programs and reading initiatives. Addressing differences in the earliest years, it seems, could reduce inequality in the next generation.36.Working-class parents teach their children to be obedient and show respect to adults.37.American parents, whether rich or poor, have similar expectations of their children despite different ways of parenting.38.While rich parents are more concerned with their children’s psychological well-being, poor parents are more worried about their children’s safety.39.The increasing differences in child rearing between rich and poor families reflect growing social inequality.40.Parenting approaches of working-class and affluent families both have a dvantages.41.Higher-income families and working-class families now tend to live in different neighborhoods.42.Physical punishment is used much less by well-educated parents.43.Ms. Lareau doesn’t believe participating in fewer after-class activities will negatively affect children’s development.44.Wealthy parents are concerned about their children’s mental health and busy schedules.45.Some socioeconomic differences in child rearing have shrunk in the p ast ten years.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. Youshould decide on the best choice and mark the corresponding letter on Answer Sheet 2 with asingle line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.Tennessee’s technical and community colleges will not outsource(外包) management of their facilities to a private company, a decision one leader said was bolstered by an analysis of spending at each campus.In an email sent Monday to college presidents in the Tennessee Board of Regents system, outgoing Chancellor John Morgan said an internal analysis showed that each campus’ spending on facilities management fell well below the industry standards identified by the state. Morgan said those findings —which included data from the system’s 13 community colleges, 27 technical colleges and six universities —were part of the decision not to move forward with Governor Bill Haslam’s proposal to privatize management of state buildings in an effort to save money.“While these numbers are still being validated by the state, we feel any adjustments they might suggest will be immaterial,” Morgan wrote to the presidents. “System institutions are operating very efficiently based on this analysis, raising the question of the value of pursuing a broad scale outsourcing initiative.”Worker’s advocates have criticized Haslam’s plan, saying it would mean some campus workers would lose their jobs or benefits. Haslam has said colleges would be free to opt in or out of the out souring plan, which has not been finalized.Morgan notified the Haslam administration of his decision to opt out in a letter sent last week. That letter, which includes several concerns Morgan has with the plan, was originally obtained by The Commercial Appeal in Memphis.In an email statement from the state’s Office of Customer Focused Government, which is examining the possibility of outsourcing, spokeswoman Michelle R. Martin said officials were still working to analyze the data from the Board of Regents. Data on management expenses at the college system and in other state departments will be part of a “business justification” the state will use as officials deliberate the specifics of an outsourcing plan.“The state’s facilities management project team is still in the process of developing its business justification and expects to have that completed and available to the public at the end of February,” Martin said. “At this time there is nothing to take action on since the analysis has yet to be completed.”Morgan’s comments on outsourcing mark the second time this month that he has come out against one of Haslam’s plans for higher education in Tennessee. Morgan said last week that he would retire at the end of January because of the governor’s proposal to split off six universities of the Board of Regents system and create separate governing boards for each of them. In his resignation letter, Morgan called the reorganization “unworkable”.46.What do we learn about the decision of technical and community colleges in Tennessee?A)It is backed by a campus spending analysis.B)It has been flatly rejected by the governor.C)It has neglected their faculty’s demands.D )It will improve their financial situation.47.What does the campus spending analysis reveal?A)Private companies play a big role in campus management.B)Facilities management by colleges is more c ost-effective.C)Facilities management has greatly improved in recent years.D)Colleges exercise foil control over their own financial a ffairs.48.Workers’ supporters argue that Bill Haslam’s proposal would .A)deprive colleges of the right to manage their facilitiesB)make workers less motivated in performing dutiesC)render a number of campus workers joblessD)lead to the privatization of campus facilities49.What do we learn from the state spokeswoman’s response to John Morgan’s d ecision?A)The outsourcing plan is not yet finalized.B)The outsourcing plan will be implemented.C)The state officials are confident about the outsourcing plan.D)The college spending analysis justifies the outsourcing plan.50.Why did John Morgan decide to resign?A)He had lost confidence in the Tennessee state government.B)He disagreed with the governor on higher education policies.C)He thought the state’s outsourcing proposal was simply unworkable.D)He opposed the governor’s plan to reconstruct the college board system.Passage TwoQuestions 51 to 55 are based on the following passage.Beginning in the late sixteenth century, it became fashionable for young aristocrats to visit Paris,Venice, Florence, and above all, Rome, as the culmination(终极) of their classical education. Thus wasborn the idea of the Grand Tour, a practice which introduced Englishmen, Germans, Scandinavians, and also Americans to the art and culture of France and Italy for the next 300 years. Travel was arduous and costly throughout the period, possible only for a privileged class—the same that produced gentlemen scientists, authors, antique experts, and patrons of the arts.The Grand Tourist was typically a young man with a thorough grounding in Greek and Latin literature as well as some leisure time, some means, and some interest in art. The German traveler Johann Winckelmann pioneered the field of art history with his comprehensive study of Greek and Roman sculpture; he was portrayed by his friend Anton Raphael Mengs at the beginning of his long residence in Rome. Most Grand Tourists, however, stayed for briefer periods and set out with less scholarly intentions, accompanied by a teacher or guardian, and expected to return home with souvenirs of their travels as well as an understanding of art and architecture formed by exposure to great masterpieces.London was a frequent starting point for Grand Tourists, and Paris a compulsory destination; many traveled to the Netherlands, some to Switzerland and Germany, and a very few adventurers to Spain, Greece, or Turkey. The essential place to visit, however, was Italy. The British traveler Charles Thompsonspoke for many Grand Tourists when in 1744 he described himself as “being impatiently desirous of viewing a country so famous in history, a country which once gave laws to the world, and which is at present the greatest school of music and painting, contains the noblest productions of sculpture and architecture, and is filled with cabinets of rarities, and collections of all kinds of historical relics”. Within Italy, the great focus was Rome, whose ancient ruins and more recent achievements were shown to every Grand Tourist. Panini’s Ancient Rome a nd Modem Rome represent the sights most prized, including celebrated Greco-Roman statues and views of famous ruins, fountains, and churches. Since there were few museums anywhere in Europe before the close of the eighteenth century, Grand Tourists often saw paintings and sculptures by gaining admission to private collections, and many were eager to acquire examples of Greco-Roman and Italian art for their own collections. In England, where architecture was increasingly seen as an aristocratic pursuit, noblemen often applied what they learned from the villas of Palladio in the Veneto and the evocative ( 唤起回忆的) ruins of Rome to their own country houses and gardens.51.What is said about the Grand Tour?A)It was fashionable among young people of the time.B)It was unaffordable for ordinary people.C)It produced some famous European artists.D)It made a compulsory part of college education.52.What did Grand Tourists have in common?A)They had much geographic knowledge.B)They were courageous and venturesome.C)They were versed in literature and interested in art.D)They had enough travel and outdoor-life experience.53.How did Grand Tourists benefit from their travel?A)They found inspiration in the world’s greatest masterpieces.B)They got a better understanding of early human civilization.C)They developed an interest in the origin of modem art forms.D)They gained some knowledge of classical art and architecture.54.Why did many Grand Tourists visit the private collections?A)They could buy unique souvenirs there to take back home.B)Europe hardly had any museums before the 19th century.C)They found the antiques there more valuable.D)Private collections were of greater variety.55.How did the Grand Tour influence the architecture in England?A)There appeared more and more Roman-style buildings.B)Many aristocrats began to move into Roman-style villas.C)Aristocrats，country houses all had Roman-style gardens.D) Italian architects were hired to design houses and gardens.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.唐朝始于618 年，终于907 年，是中国历史上最灿烂的时期。
2017年12月大学英语六级考试真题详细解析第三套
. . . .2017年12月大学英语六级考试真题（第三套）Part I Writing (30 minutes) Directions: For this part, you are allowed 30 minutes to write an essay commenting on the saying “Help others,and you will be helped when you are in need” you can cite examples to illustrateyour views. you should write at least 150 words but no more than 200 words.Part II Listening Comprehension (30 minutes) 说明：由于2017年12月六级考试全国共考了2套听力，本套真题听力与前2套听力内容完全一致，只是顺序不一样，因此在本套真题中不再重复出现。
Part III Reading Comprehension (40 minutes) Section ADirections: In this section, there is a passage with ten blanks. You are required to select one wordfor 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 throughthe centre. You may not use any of the words in the bank more than once.Questions 26 to 35 are based on the following passage.Many European countries have been making the shift to electric vehicles and Germany hasjust stated that they plan to ban the sale of vehicles using gasoline and diesel as fuel by 2030. The country is also planning to reduce its carbon footprint by 80-95% by 2050, ___26___ a shift togreen energy in the country. Effectively, the ban will include the registration of new cars in the country as they will not allow any gasoline ___27___ vehicle to be registered after 2030.Part of the reason this ban is being discussed and ___28___ is because energy officials seethat they will not reach their emissions goals by 2050 if they do not ___29___ a large portion of vehicle emissions. The country is still ___30___ that it will meet its emissions goals, like reducing emissions by 40% by 2020, but the ___31___ of electric cars in the country has not occurred asfast as expected.Other efforts to increase the use of electric vehicles include plans to build over 1 million. . . .63. . . .2017年12月大学英语六级考试真题（第三套）hybrid and electric car battery charging stations across the country. By 2030, Germany plans onhaving over 6 million charging stations ___32___. According to the International Business Times, electric car sales are expected to increase as Volkswagen is still recovering from its emissions scandal.There are ___33___ around 155,000 registered hybrid and electric vehicles on German roads, dwarfed by the 45 million gasoline and diesel cars driving there now. As countries continue setting goals of reducing emissions, greater steps need to be taken to have a ___34___ effect on the surrounding environment. While the efforts are certainly not ___35___, the results of such banswill likely only start to be seen by generations down the line, bettering the world for the future.A) acceptanceB) currentlyC) disruptingD) eliminate E)exhaustF) futileG) hopefulH) implementedI)incidentallyJ) installedK) noticeableL) poweredM) restorationN) skepticalO) sparkingSection 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.Apple’s Stance Highlights a More Confrontational Teach IndustryA) The battle between Apple and law enforcement officials over unlocking a terrorist’s smartphone is the culmination of a slow turning of the tables between the technology industry and the United States government.B) After revelations by the former National Security Agency contractor Edward J. Snowden in 2013 that the government both cozied up to (讨好) certain tech companies and hacked into others to gain access to private data on an enormous scale, tech giants began to recognize the United States government as a hostile actor. But if the confrontation has crystallized in this latest battle, it may already be heading toward a predictable conclusion: In the long run, the tech companies are. . . . destined to emerge victorious.64. . . .2017年12月大学英语六级考试真题（第三套）C) It may not seem that way at the moment. On the one side, you have the United States government’s mighty legal and security apparatus fighting for data of the most sympathetic sort:the secrets buried in a dead mass murderer’s phone. The action stems from a federal court orderissued on Tuesday requiring Apple to help the Federal Bureau of Investigation (F.B.I) to unlock an iPhone used by one of the two attackers who killed 14 people in San Bernardino, California, in December.D) In the other corner is the world’s most valuable company, whose chi ef executive, Timothy D. Cook, has said he will appeal the court’s order. Apple argues that it is fighting to preserve aprinciple that most of us who are addicted to our smartphones can defend: Weaken a single iPhoneso that its contents can be viewed by the American government and you risk weakening alliPhones for any government intruder, anywhere.E) There will probably be months of legal tussling, and it is not at all clear which side will prevailin court, nor in the battle for public opinion and legislative favor. Yet underlying all of this is asimple dynamic: Apple, Google, Facebook and other companies hold most of the cards in this confrontation. They have our data, and their businesses depend on the global public’s collectivebelief that they will do everything they can to protect that data.F) Any crack in that front could be fatal for tech companies that must operate worldwide. If Appleis forced to open up an iPhone for an American law enforcement investigation, what is to preventit from doing so for a request from the Chinese or the Iranians? If Apple is forced to write codethat lets the F.B.I. get into the Phone 5c used by Syed Rizwan Farook, the male attacker in the San Bernardino attack, who would be responsible if some hacker got hold of that code and broke intoits other devices?G) Apple’s stance on these issues emerged post-Snowden, when the company started putting inplace a series of technologies that, by default, make use of encryption to limit access to people’sdata. More than that, Apple - and, in different ways, other tech companies, including Google, Facebook, Twitter and Microsoft - have made their opposition to the government’s claims a pointof corporate pride.H) Apple’s emerging global brand is privacy; it has staked its corp orate reputation, not to mentionthe investment of considerable technical and financial resources, on limiting the sort of mass. . . . surveillance that was uncovered by Mr. Snowden. So now, for many cases involving governmental65. . . .2017年12月大学英语六级考试真题（第三套）intrusions into data, once-lonely privacy advocates find themselves fighting alongside the most powerful company in the world.I) “A comparison point is in the 1990s battles over encryption,”said Kurt Opsahl, generalcounsel of the Electronic Frontier Foundation, a privacy watchdog group. “Then you had a few companies involved, but not one of the largest companies in the world coming out with a lengthyand impassioned post, like we s aw yesterday from Tim Cook. The profile has really been raised.”J) Apple and other tech companies hold another ace: the technical means to keep making theirdevices more and more inaccessible. Note that Apple’s public opposition to the government’srequest is itself a hindrance to mass government intrusion. And to get at the contents of a single iPhone, the government says it needs a court order and Apple’s help to write new code; in earlier versions of the iPhone, ones that were created before Apple found religion on (热衷于) privacy,the F.B.I. may have been able to break into the device by itself.K) You can expect that noose (束缚) to continue to tighten. Experts said that whether or notApple loses this specific case, measures that it could put into place in the future will almostcertainly be able to further limit the government’s reach.L) That’s not to say that the outcome of the San Bernardino case is insignificant. As Apple andseveral security experts have argued, an order compelling Apple to write software that gives theF.B.I. access to the iPhone in question would establish an unsettling precedent. The orderessentially asks Apple to hack its own devices, and once it is in place, the precedent could be usedto justify law enforcement efforts to get around encryption technologies in other investigations far removed from national security threats.M) Once armed with a method for gaining access to iPhones, the government could ask to use it proactively (先发制人地), before a suspected terrorist attack - leaving Apple in a bind as to whether to comply or risk an attack and suffer a public-relations nightmare.“This is a brand-newsalvo in the war against encryption,” Mr. Opsahl said.“We’ve had plenty of debates in Congressand the media over whether the government should have a backdoor, and this is an end run aroundthat - here they come with an order to create that backdoor.”N) Yet it’s worth noting that even if Apple ultimately loses this case, it has plenty of technical. . . . means to close a backdoor over time.“If they’re anywhere near worth their salt as engineers, I bet66. . . .2017年12月大学英语六级考试真题（第三套）they’re rethinking their threat model as we speak,” said Jonathan Zdziarski, a digital forensicexpert who studies the iPhone and its vulnerabilities.O) One relatively simple fix, Mr. Zdziarski said, would be for Apple to modify future versions ofthe iPhone to require a user to enter a passcode before the phone will accept the sort of modified operating system that the F.B.I. wants Apple to create. That way, Apple could not unilaterally introduce a code that weakens the iPhone— a user would have to consent to it.P) “Nothing is 100 percent hacker-proof,” Mr. Zdziarski said, but he pointed out that the judge’sorder in th is case required Apple to provide “reasonable security assistance” to unlock Mr.Farook’s phone. If Apple alters the security model of future iPhones so that even its ownengineers’ “reasonable assistance” will not be able to crack a given device when comp elled by the government, a precedent set in this case might lose its lasting force. In other words, even if theF.B.I. wins this case, in the long run, it loses.36. It is a popular belief that tech companies are committed to protecting their customers’ private data.37. The US government believes that its access to people’s iPhones could be used to preventterrorist attacks.38. A federal court asked Apple to help the FBI access data in a terrorist’s iPhone.39. Privacy advocates now have Apple fighting alongside them against government access topersonal data.40. Snowden revealed that the American government had tried hard to access private data inmassive scale.41. The FBI might have been able to access private data in earlier iPhones without Apple’s help.42. After the Snowden incident, Apple made clear its position to counter government intrusion into personal data by means of encryption.43. According to one digital expert, no iPhone can be entirely free from hacking.44. Timothy Cook’s long web post has helped enhance Apple’s image.45. Apple’s CEO has decided to appeal the federal court’s order to unlock a user’s iPhone.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). You67. . . .2017年12月大学英语六级考试真题（第三套）should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with asingle line through the centre.Passage OneQuestion 46 to 50 are based on the following passage.At the base of a mountain in Tanzania’s Gregory Rift, Lake Natron burns bright red, surrounded by the remains of animals that were unfortunate enough to fall into the salty water.Bats, swallows and more are chemically preserved in the pose in which they perished, sealed inthe deposits of sodium carbonate in the water. The lake’s landscape is bizarre and deadly- andmade even more so by the fact that it’s the place where nearly 75percent of the world’sflamingos(火烈鸟) are born.The water is so corrosive that it can burn the skin and eyes of unadapted animals. Flamingos, however, are the only species that actually makes life in the midst of all that death. Once everythree or four years, when conditions are right, the lake is covered with the pink birds as they stopflight to breed. Three –quarters of the world’s flamingos fly over from other salt lakes in the RiftValley and nest on salt- crystal islands that appear when the water is at specific level- too high andthe birds can’t build their nests, too low and predators can more briskly across the lake bed and attack. When the water hits the right level, the baby birds are kept safe from predators by acorrosive ditch.“Flamingos have evolved very leathery skin on their legs so they can tolerate the salt water,”says David Harper, a professor at the University of Leicester. “ Humans cannot, and would die iftheir legs were exposed for any length of time.” So far this year, water levels have bee n too highfor the flamingos to nest.Some fish, too, have had limited success vacationing at the lake as less salty lagoons (泻湖)form on the outer edges from hot springs flowing into Lake Natron. Three species of tilapia (罗非鱼) thrive there part-time. “Fish have a refuge in the streams and can expand into the lagoonswhen the lake is low and the lagoons are separate,” Harper said. “All the lagoons join when thelake is high and fish must retreat to their stream refuges or die.” Otherwise, no fish are able tosurvive in the naturally toxic lake.This unique ecosystem may soon be under pressure. The Tanzanian government has once. . . . again started mining the lake for soda ash, used for making chemicals, glass and detergents.68. . . .2017年12月大学英语六级考试真题（第三套）Although the planned operation will be located more than 40 miles away, drawing the soda ash in through pipelines, conservationists worry it could still upset the natural water cycle and breeding grounds. For now, though, life prevails – even in a lake that kills almost everything it touches.46. What can we learn about Lake Natron?A) It is simply uninhabitable for most animals.B) It remains little known to the outside world.C) It is a breeding ground for a variety of birds.D) It makes an ideal habitat for lots of predators.47.Flamingos nest only when the lake water is at a specific level so that their babies can ______.A)find safe shelter more easilyB)grow thick feathers on their feet C)stay away from predatorsD)get accustomed to the salty water48.Flamingos in the Rift Valley are unique in that _______.A)they can move swiftly across lagoonsB)they can survive well in salty water C)they breed naturally in corrosive ditchesD)they know where and when to nest49.Why can certain species of tilapia sometimes survive around Lake Natron?A)They can take refuge in the less salty waters.B)They can flee quick enough from predators.C)They can move freely from lagoon to lagoon.D)They can stand the heat of the spring water.50.What may be the consequence of Tanzanian government’s planned operation?A)The accelerated extinction of flamingos.B)The change of flamingos’ migration route.C)The overmining of Lake Natron’s soda ash.D)The disruption of Lake Natron’s ecosystem.Questions 51 to 55 are based on the following passage.It is the season for some frantic last-minute math across the country, employees of all stripe are counting backward in an attempt to figure out just how much paid time-off they have left it their reserves. More of them, though, will skip those calculations altogether and just power. . . . through the holidays into 2017: More than half of American workers don’t use up all of their allotted vacation days each year.Not so long ago, people would have turned up their noses at that kind of dedication to the job. As marketing professors Silvia Bellezza, Neeru Paharia, and Anat Keinan recently explained in69. . . .2017年12月大学英语六级考试真题（第三套）Harvard Business Review (HBR), leisure time was once seen as an indicator of high social status, something attainable only for those at the top. Since the middle of the 20th century, though, things have turned the opposite way – these days, punishing hours at your desk, rather than days off, areseen as the mark of someone important.In a series of several experiments, the researchers i llustrated just how much we’ve come to admire busyness, or at least the appearance of it. Volunteers read two passages, on about a manwho led a life of leisure and another about a man who was over-worked and over –scheduled;when asked to determine which of the two had a higher social status, the majority of theparticipants said the latter. The same held true for people who used products that implied theywere short on time: In one experiment, for example, customers of the grocery-delivery servicePeapod were seen as of higher status than people who shopped at grocery stores that were equally expensive; in another, people wearing wireless headphones were considered further up on thesocial ladder than those wearing regular headphones, even when both were just used to listen to music.In part,the authors wrote in HBR.this pattern may have to do with the way work itself has changed over the past several decades.We think that the shift from leisure-as-status to business-as-status may be linked to the development of knowledge-intensive economics. In such economies,individuals who possess the human capital characteristics that employers or clients value (petence and ambition) are expected to be in high demand and short supply on the job market.Thus，by telling others that weare busy and working all the time, we are implicitly suggesting that we are sought after, which enhances our perceived status.Even if you feel tempted to sacrifice your own vacation days for fake busyness, though, atleast consider leaving your weekends unscheduled.It's for your own good.51. What do most employees plan to do towards the end of the year?A) Go for a vacation.B) Keep on working. C) Set an objective for next year.D) Review the year’s achievements.52.How would people view dedication to work in the past?. . . .A) They would regard it as a matter of course.B) They would consider it a must for success.70. . . .2017年12月大学英语六级考试真题（第三套）C) They would look upon it with contempt.D) They would deem it a trick of businessmen.53. What did the researchers find through a series of experiments?A) The busier one appears, the more respect one earns.B) The more one works, the more one feels exploited.C) The more knowledge one has, the more competent one will be.D) The higher one’s status, the more vacation time one will enjoy.54. What may account for the change of people’s attitude towards being busy?A) The fast pace of life in modern society.B) The fierce competition in the job market.C) The widespread use of computer technology.D) The role of knowledge in modern economy.55.What does the author advise us to do at the end of the passage ?A) Schedule our time properly for efficiency.B) Plan our weekends in a meaningful way.C) Find time to relax however busy we are.D) Avoid appearing busy when we are not.PartⅣTranslation (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.青海湖位于海拔3205米、青海省省会西宁以西约100公里处。
2017年12月英语六级考试真题试卷附答案(完整版第3套).doc
2017年12月英语六级考试真题试卷附答案(完整版第3套)Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write on essay commenting on the saying "Help others, and you will be helped when you are in need.,f 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)说明：由于2017年12月六级考试全国共考了2套听力，本套真题听力与前2套内容完全一样，只是顺序不一样，因此在本套真题中不再重复出现。
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 corresp on ding 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.Many European countries have been making the shift to electric vehicles and Germany has just stated that they plan to ban the sale of vehicles using gasoline and diesel as fuel by 2030. The coun try is also planning to reduce its carb on footprint by 80-95% by 2050, 26 a shift to green energy in the country. Effectively, the ban will in elude the regist ration of new cars in the country as they will not allow any gasoline 27 vehicle to be registered after 2030.Part of the reason this ban is being discussed and 28 is because energy officials see that they will not reach their emissions goals by 2050 if they do not 29 a large portion of vehicle emissions. The country is still 30 that it will meet its emissions goals, like reducing emissions by 40% by 2020, but the 31 of electric cars in the country has not occurred as fast as ejected.Other efforts to in crease the use of electric vehicles in elude plans to build over 1million hybrid and electric car battery changing stations across the country. By 2030, Germany plans on having over 6 million charging stations 32 . According to the In ter national Business Times, electric car sales are expected to increase as Volkswagen is still recovering from its emissions seandal.There are 33 around 155,000 registered hybrid and electric vehicles on German roads, dwarfed by the 45 million gasoline and diesel cars driving there now. As countries continue setting goals of reducing emissions, greater steps need to be taken to have a 34 effect on the surrounding environment. While the efforts are certainly not 35 , the results of such bans will likely only start to be seen by generations down the line, bettering the world for the future.A)acceptanee B) currently C) disrupting D) eliminate E) exhaust F) futile G) hopeful H) implemented I) incidentally J) installed K) noticeable L) powered M) restoration N) skeptical O) sparkingSection BDirections: In this sectior\ 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.Apple's Stance Highlights a More Confrontational Tech Industry[A]The battle between Apple and law enforcement officials over unlocking a terrorist's smartphone is the culmination of a slow turning of the tables between the technology industry and the United States government・[B]After revelati ons by the former Nati onal Security Agency con tractor Edward J. Snowden in 2013 that the government both cozied up to (讨好)certain tech companies and hacked into others to gain access to private data on an enormous scale, techgiants began to recognize the United States government as a hostile actor・ But if the confrontation has crystallized in this latest battle, it may already be heading toward a predictable conclusion: In the long run, the tech companies are destined to emerge victorious.[C]It may not seem that way at the moment. On the one side, you have the United States government's mighty legal and security apparatus fighting for data of the most sympathetic sort: the secrets buried in a dead mass murderers phone. The action steins from a federal court order issued on Tuesday requiring Apple to help the Federal Bureau of Investigation (FBI) to unlock on iPhone used by one of the two attackerswho killed 14 people in San Bernardino, California, in December.[D]In the other corner is the world's most valuable compan* whose chief executive, Timothy Cook, has said he will appeal the court's order. Apple argues that it is fighting to preserve a principle that most of us who are addicted to our smartphones can defend: Weaken a single iPhone so that its contents can be viewed by the American government and you risk weakening all iPhones for any gover nment in truder, any where.[E]There will probably be mon ths of legal confrontati on, and it is not at all clear which side will prevail in court, nor in the battle for public opinion and legislative favor.Yet underlying all of this is a simple dynamic: Apple, Google, Facebook and other companies hold most of the cards in this confrontation. They have our data, and their businesses depend on the global public f s collective belief that they will do everything they con to protect that data.[F]Any crack in that front could be fatal for tech companies that must operate worldwide. If Apple is forced to open up an iPhone for an American law enforce me nt investigation, what is to preve nt it from doing so for a request from the Russia ns or the Ira nians? If Apple is for ced to write code that lets the FBI get into the Phone 5c used by Syed Rizwan Farook, the male attacker in the San Bernardino attack, who would be responsible if some hacker got hold of that code and broke into its other devices?[G]Apple's stance on these issues emerged post-Snowden, when the company started putting in place a series of technologies that, by default, make use of en crypti on （加密）to limit access to people's data ・ More tha n that, Apple—a nd, in different ways, other tech companies, including Google, Facebook, Twitter and Microsoft—have made their opposition to the government's claims a point of corporate pride・[H]Apple's emerging global brand is privacy; it has staked its corporate reputati on, not to men tion the in vestment of considerable tech nical and financial resources, on limiting the sort of mass surveillance that was uncovered by Mr. Snowden. So now, for many cases involving governmental intrusions into data, once-lonely privacy advocates find themselves fighting alongside the most powerful company in the world.[I]U A comparison point is in the 1990s battles over encryption/ said Kurt Opsahl, general counsel of the Electronic Frontier Foundatior\ a privacy watchdog group. n Then you had a few companies involved, but not one of the largest compa nies in the world comi ng out with a lengthy and impassi oned post, like we saw yesterday from Timothy Cook. Its profile has really been raised.H[J]Apple and oilier tech companies hold another ace: the technical means to keep making their devices more and more inaccessible. Note that Apple's public opposition to the governmerit's request is itself a hindrance to mass government intrusion. And to get at the contents of a single iPhone, the government says it needs a court order and Apple's help to write new code; in earlier versions of the iPhone, ones that were created before Apple found religion on （热衷于）privacy, the FBI might have been able to break into the device by itself.[K]You can expect that noose （束缚）to continue to tighten・ Experts said that whether or not Apple loses this specific case, measures that it could put into place in the future will almost certainly be able to further limit the government's reach.[L]That is not to say that the outcome of the San Bernardino case is insignificant. As apple and several security experts have argued, an order compelling Apple to write software that gives the FBI access to the iPhone in questi on would establish an unsettli ng precede nt. The order esse ntially asks Apple to hack its own devices, and once it is in place, the pr ecede nt could be used to justify law enforcement efforts to get around encryption technologies in other investigations far removed from national security threats.[M]Once aimed with a method for gaining access to iPhones, the government couldask to use it proactively （先发制人地），before a suspected terrorist attack—leaving Apple in a bind as to whether to comply or risk an attack and suffer a public-relations nightmare. H This is a brand new move in the war against encryptioMr. Opsahl said.H We have had plenty of debates inCongress and the media over whether the government should have a backdoor, and this is an end run （迂回战术）around that—here they come with an order to create that backdoor."[N]Yet it is worth noting that even if Apple ultimately loses this case, it has plenty of tech nical means to close a backdoor over time. H If they are any where near worth their salt as engineeI bet they are rethinking their threat model as we speak,n said Jonathan Zdziarski, a digital expert who studies the iPhone and its vulnerabilities. [O]One relatively simple fix, Mr. Zdziarski said, would be for Apple to modify future versions of the iPhone to require a user to enter a passcode before the phone will accept the sort of modified operating system that the FBI wants Apple to create. That way, Apple could not unilaterally introduce a code that weakens the iPhone—a user would have to consent to it.[P]"Nothing is 100 percent hacker-proof," Mr. Zdziarski said, but he pointed out that the judge's order in this case required Apple to provide "reas on able security assistance'1 to unlock Mr. Farook's phone. If Apple alters the security model of future iPh ones so that even its own en gineers* H reas on able assistance11 will not be able to crack a given device when compelled by the government, a precedent set in this case might lose its lasting force. In other words, even if the FBI wins this case, in the long run z it loses.36.It is a popular belief that tech companies are committed to protecting their customers* private data.37.The US government believes that its access to people's iPhones could be used to prevent terrorist attacks.38.A federal court asked Apple to help the FBI access data in a terrorist's iPhone.39.Privacy advocates now have Apple fighting alongside them against government access to personal data.40.Snowden revealed that the American government had tried hard to access private data on a massive scale.41.The FBI might have been able to access private data in earlier iPhones without Apple's help・42.After the Snowden incident, Apple made clear its position to counter government intrusion into personal data by means of encryption.43.According to one digital expert, no iPhone can be entirely free from hacking.44.Timothy Cook's long web post has helped enhance Apple's image.45.Apple's CEO has decided to appeal the federal court's order to unlock a user!s iPhone.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 corresp onding letter on An swer Sheet 2 with a single line through the cen tre.Passage OneQuestions 46 to 50 are based on the following passage.At the base of a moun tain in Tanzania's Gregory Rift, Lake Natr on bur ns bright red, surrotinded by the remains of animals that were unfortunate enough to fall into the salty water. Bats, swallows and more are chemically preserved in the pose in which they perished, sealed in the deposits of sodium carb on ate in the water. The lake's Ion dscape is bizarre and deadly—a nd made eve n more so by the fact that it's the place where nearly 75 percent of the world's flamingos （火烈鸟）are born.The water is so corrosive that it can bum the skin and eyes of unadapted animals. Flamingos『however, are the only species that actually makes life in the midst of all that death. Once every three or four years, when conditions are right, the lake is covered with the pink birds as they stop flight to breed.Three・quarters of the world's flamingos fly over from other salt lakes in the Rift Valley and nest on salt-crystal islands that appear when the water is at a specific level—too high and the birds can't build their nests, too low and predators can move briskly across the lake bed and attack. When the water hits the right level, the baby birds are kept safe from predators by a corrosive ditch."Flamingos have evolved very leathery skin on their legs so they can tolerate the salt water," says David Harper, a professor at the University of Leicester・,f Humans carmot, and would die if their legs were exposed for any length of time.1' So far this year,water levels have been too high for the flamingos to nest. Some fish, too, have had limited success vacationing at the lake as less salty lagoons （泻1胡）form on the outer edges from hot springs flowing into Lake Natron. Three species of tilapia （罗鱼）thrive there part-time. "Fish have a refuge in the streams and can expand into the Iagoons when the lake is low and the Iagoons are separate,H Harper said. "All the Iagoons join when the lake is high and fish must retreat to their stream refuges or die.1' Otherwise, no fish are able to survive in the naturally toxic lake.This unique ecosystem may soon be under pressure. The Tanzanian government has once again started mining the lake for soda ash, used for making chemicals, glass and detergents. Although the planned operation will be located more than 40 miles away, drawing the soda ash in through pipelines, conservationists worry it could still upsetthe natural water cycle and breeding grounds. For now, though, life prevails—even in a lake that kills almost everything it touches.46.What can we learn about Lake Natron?A)It is simply uninhabitable for most animals.B)It remains little known to the outside world.C)It is a breeding ground for a variety of birds.D)It makes an ideal habitat for lots of predators.47.Flamingos nest only when the lake water is at a specific level so that their babies can .A)find safe shelter more easilyB)grow thick feathers on their feetC)stay away from predatorsD)get accustomed to the salty water48.Flamingos in the Rift Valley are unique in that .A)they can move swiftly across IagoonsB)they can survive well in salty waterC)they breed naturally in corrosive ditchesD)they know where and when to nest49.Why can certain species of tilapia sometimes survive around Lake Natron?A)They can take refuge in the less salty waters・B)They can flee quick eno ugh from predators.C)They can move freely from lagoon to Iago on.D)They can stand the heat of the spring water.50.What may be the consequence of Tanzanian governmenfs planned operation?A)The accelerated extinotion of flamingos.B)The change of flamingos* migration route.C)The overmining of Lake Natron^ soda ash.D)The disruption of Lake Natron's ecosystem.Passage TwoQuestions 51 to 55 are based on the following passage.It is the seas on for some frantic last-mi nute math—ac ross the coun try, employees of all stripes are counting backward in an attempt to figure out just how much paid time-off they have left in their reserves. More of them, though, will skip those calculations altogether and just power through the holidays into 2017: More than half of American workers don't use up all of their allotted vacation days each year.Not so long ago, people would have turned up their noses at that kind of dedication to the job. As marketing professors Silvia Bellezza, Neeru Paharia, and Anat Keinan recently explained in Harvard Business Review (HBR), leisure time was once seen as an indicator of high social status, something attainable only for those at the top. Since the middle of the 20th century, though, things have turned the opposite way—these days, punishing hours at your desk, rather than days off, are seen as the mark of someone important.In a series of several experiments, the researchers illustrated just how much we've come to admire busyness, or at least the appearance of it. Volunteers read two passages, one about a man who led a life of leisure and another about a man who was over-worked and over-scheduled; when asked to determine which of the two had a higher social status, the majority of the participants said the latter. The same held true for people who used products that implied they were short on time: In one experiment, for example, customers of the grocery-delivery service Peapod were seen as of higher status than people who shopped at grocery stores that were equally expensive; in another, people wearing wireless headphones were considered further up on the social ladder than those wearing regular headphones, even when both were just used to listen to music.In part, the authors wrote in HBR, this pattern may have to do with the way work itself has changed over the past several decades.We think that the shift from leisure-as-status to busyness-as-status may be linked to the development of knowledge-intensive economics. In such economies, individuals who possess the human capital characteristics that employers or die nts value (e. g. , compete nee and ambition) are expected to be in high demand and short supply on the job market. Thus, by telling others that we are busy and working all the time, we are implicitly suggesting that we are sought after, which enhances our perceived status. Even if you feel tempted to sacrifice your own vacation days for fake busyness, though, at least consider leaving your weekends unscheduled. It's for your own good.51.What do most employees plan to do towards the end of the year?A)Go for a vacation.B)Keep on working.C)Set an objective for next year.D)Review the year's achievements.52.How would people view dedication to work in the past?A)They would regard it as a matter of course.B)They would consider it a must for success.C)They would look upon it with con tempt.D)They would deem it a trick of businessmen.53.What did the researchers find through a series of experiments?A)The busier one appears, the more respect one ear ns.B)The more one works, the more one feels exploited.C)The more kno wledge one has, the more compete nt one will be.D)The higher one's status, the more vacation time one will enjoy.54.What may account for the change of people's attitude towards being busy?A)The fast pace of life in modern society.B)The fierce competition in the job market.C)The widespread use of computer technology.D)The role of knowledge in modern economy.55.What does the author advise us to do at the end of the passage?A)Schedule our time properly for efficiency.B)Plan our weekends in a meaningful way.C)Find time to relax however busy we are.D)Avoid appearing busy when we are not.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. 洞庭湖位于湖南省东北部，面积很大，但湖水很浅。
2017年12月大学英语六级(CET-6)真题第三套试卷及参考答案
2017年12月大学英语六级考试真题（第3套）Part I Writing (30 minutes)（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 allowed 30 minutes to write an essay commenting on the saying "Help others, and you will be helped when you are in need " 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 (30minutes)说明：由于2017年12月六级考试全国共考了2套听力，本套真题听力与前2套内容完全一样，只是顺序不一样，因此在本套真题中不再重复出现。
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.Question 26 to 35 are based on the following passage.Many European countries have been making the shift to electric vehicles and Germany has just stated that they plan to ban the sale of vehicles using gasoline and diesel as fuel by 2030. The country is also planning to reduce its carbon footprint by 80-95% by 2050, ___26___ a shift to green energy in the country. Effectively, the ban will include the registration of new cars in the country as they will not allow any gasoline ___27___ vehicle to be registered after 2030.Part of the reason this ban is being discussed and ___28___ is because energy officials see that they will not reach their emissions goals by 2050 if they do not ___29___ a large portion of vehicle emissions. The country is still ___30___ that it will meet its emissions goals, like reducing emissions by 40% by 2020, but the ___31___ of electric cars in the country has not occurred as fast as expected.Other efforts to increase the use of electric vehicles include plans to build over 1 million hybrid and electric car battery charging stations across the country. By 2030, Germany plans on having over 6 million charging stations ___32___. According to the International Business Times, electric car sales are expected to increase as V olkswagen is still recovering from its emissions scandal.There are ___33___ around 155,000 registered hybrid and electric vehicles on German roads, dwarfed by the 45 million gasoline and diesel cars driving there now. As countries continue setting goals of reducing emissions, greater steps need to be taken to have a ___34___ effect on the surrounding environment. While the efforts are certainly not ___35___, the results of such bans will likely only start to be seen by generations down the line, bettering the world for the future.A)acceptance I)incidentallyB)currently J)installedC)disrupting K)noticeableD)eliminate L)poweredE)exhaust M)restorationF)futile N)skepticalG)hopeful O)sparkingH)implementedDirections: 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.Apple’s Stance Highlights a More Confrontational Teach IndustryA) The battle between Apple and law enforcement officials over unlocking a terrorist’s smartphone is the culmination of a slow turning of the tables between the technology industry and the United States government.B) After revelations by the former National Security Agency contractor Edward J. Snowden in 2013 that the government both cozied up to (讨好) certain tech companies and hacked into others to gain access to private data on an enormous scale, tech giants began to recognize the United States government as a hostile actor. But if the confrontation has crystallized in this latest battle, it may already be heading toward a predictable conclusion: In the long run, the tech companies are destined to emerge victorious.C) It may not seem that way at the moment. On the one side, you have the United States govern ment’s mighty legal and security apparatus fighting for data of the most sympathetic sort: the secrets buried in a dead mass murderer’s phone. The action stems from a federal court order issued on Tuesday requiring Apple to help the Federal Bureau of Investigation (F.B.I) to unlock an iPhone used by one of the two attackers who killed 14 people in San Bernardino, California, in December.D) In the other corner is the world’s most valuable company, whose chief executive, Timothy D. Cook, has said he will a ppeal the court’s order. Apple argues that it is fighting to preserve a principle that most of us who are addicted to our smartphones can defend: Weaken a single iPhone so that its contents can be viewed by the American government and you risk weakening all iPhones for any government intruder, anywhere.E) There will probably be months of legal tussling, and it is not at all clear which side will prevail in court, nor in the battle for public opinion and legislative favor. Yet underlying all of this is a simple dynamic: Apple, Google, Facebook and other companies hold most of the cards in this confrontation. They have our data, and their businesses depend on the global public’s collective belief that they will do everything they can to protect that data.F) Any crack in that front could be fatal for tech companies that must operate worldwide. If Apple is forced to open up an iPhone for an American law enforcement investigation, what is to prevent it from doing so for a request from the Chinese or the Iranians? If Apple is forced to write code that lets the F.B.I. get into the Phone 5c used by Syed Rizwan Farook, the male attacker in the San Bernardino attack, who would be responsible if some hacker got hold of that code and broke into its other devices?G) Apple’s stance on these issues emerged post-Snowden, when the company started putting in place a series of technologies that, by default, make use of encryption to limit access to people’s data. More than that, Apple - and, in different ways, other tech companies, including Google, Facebook, Twitter and Microsoft - have made their opposition to the government’s claims a point of corporate pride.H) Appl’s emerging global brand is privacy; it has staked its corporate reputation, not to mention the investment of considerable technical and financial resources, on limiting the sort of mass surveillance that was uncovered by Mr. Snowden. So now, for many cases involving governmental intrusions into data, once-lonely privacy advocates find themselves fighting alongside the most powerful company in the world.I) “A comparison point is in the 1990s battles over encryption,” said Kurt Opsahl, general counsel of the Electronic Frontier Foundation, a privacy watchdog group. “Then you had a few companies involved, but not one of the largest companies in the world coming out with a lengthy and impassioned post, like we saw yesterday from Tim Cook. Its profile has really been raised.”J) Apple and other tech companies hold another ace: the technical means to keep making their devices more and more inaccessible. Not e that Apple’s public opposition to the government’s request is itself acreated before Apple found religion on (热衷于) privacy, the F.B.I. may have been able to break into the device by itself.K) You can expect that noose (束缚) to continue to tighten. Experts said that whether or not Apple loses this specific case, measures that it could put into place in the future will almost certainly be able to further limit the government’s reach.L) That’s not to say that the outcome of the San Bernardi no case is insignificant. As Apple and several security experts have argued, an order compelling Apple to write software that gives the F.B.I. access to the iPhone in question would establish an unsettling precedent. The order essentially asks Apple to hack its own devices, and once it is in place, the precedent could be used to justify law enforcement efforts to get around encryption technologies in other investigations far removed from national security threats.M) Once armed with a method for gaining access to iPhones, the government could ask to use it proactively (先发制人地), before a suspected terrorist attack - leaving Apple in a bind as to whether to comply or risk an attack and suffer a public-relations night mare. “This is a brand-new salvo in the war against encryption,” Mr. Opsahl said. “We’ve had plenty of debates in Congress and the media over whether the government should have a backdoor, and this is an end run around that - here they come with an order to create that backdoor.”N) Yet it’s worth noting that even if Apple ultimately loses this case, it has plenty of technical means to close a backdoor over time. “If they’re anywhere near worth their salt as engineers, I bet they’re rethinking their threat model as we speak,” sai d Jonathan Zdziarski, a digital forensic expert who studies the iPhone and its vulnerabilities.O) One relatively simple fix, Mr. Zdziarski said, would be for Apple to modify future versions of the iPhone to require a user to enter a passcode before the phone will accept the sort of modified operating system that the F.B.I. wants Apple to create. That way, Apple could not unilaterally introduce a code that weakens the iPhone — a user would have to consent to it.P) “Nothing is 100 percent hacker-proof,” M r. Zdziarski said, but he pointed out that the judge’s order in this case required Apple to provide “reasonable security assistance” to unlock Mr. Farook’s phone. If Apple alters the security model of future iPhones so that even its own eng ineers’ “reasonable assistance” will not be able to crack a given device when compelled by the government, a precedent set in this case might lose its lasting force. In other words, even if the F.B.I. wins this case, in the long run, it loses.36. It is a popular belief that tech companies are committed to protecting their customers’ private data.37. The US government believes that its access to people’s iPhones could be used to prevent terrorist attacks.38. A federal court asked Apple to help the FBI access data in a t errorist’s iPhone.39. Privacy advocates now have Apple fighting alongside them against government access to personal data.40. Snowden revealed that the American government had tried hard to access private data in massive scale.41. The FBI might have been able to access private data in earlier iPhones without Apple’s help.42. After the Snowden incident, Apple made clear its position to counter government intrusion into personal data by means of encryption.43. According to one digital expert, no iPhone can be entirely free from hacking.44. Timothy Cook’s long web post has helped enhance Apple’s image.45. Apple’s CEO has decided to appeal the federal court’s order to unlock a user’s iPhone.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.At the base of a mountain in Tanzania’s Gregory Rift,Lake Natron burns bright red, surrounded by the remains of animals that were unfortunate enough to fall into the salty water. Bats, swallows and more are chemically preserved in the pose in which they perished, sealed in the deposits of sodium carbonate in the water. The lake’s landscape is bizarre and deadly- and made even more so by the fac t that it’s the place where nearly 75perce nt of the world’s flamingos(火烈鸟) are born.The water is so corrosive that it can burn the skin and eyes of unadapted animals. Flamingos, however, are the only species that actually makes life in the midst of all that death. Once every three or four years, when conditions are right, the lake is covered with the pink birds as they stop flight to breed. Three –quarters of the world’s flamingos fly over from other salt lakes in the Rift Valley and nest on salt- crystal islands that appear when the water is at specific level- too high an d the birds can’t build their nests, too low and predators can more briskly across the lake bed and attack. When the water hits the right level. The baby birds are kept safe form predators by a corrosive ditch.“Flamingos have evolved very leathery skin on their legs so they can tolerate the salt water,” says David Harper, a professor at the University of Leicester. “ Humans cannot, and would die if their legs were exposed for any length of time.” So far this year, water levels have been too high for the flamingos to nest.Some fish, too, have had limited success vacationing at the lake as less salty lagoons (泻湖) form on the outer edges from hot springs flowing into Lake Natron. Three species of tilapia (罗非鱼) thrive there part-time. “Fish have a refuge i n the streams and can expand into the lagoons when the lake is low and the lagoons are separate,” Harper said. “All the lagoons join when the lake is high and fish m ust retreat to their stream refuges or die.” Otherwise, no fish are able to survive in the naturally toxic lake.This unique ecosystem may soon be under pressure. The Tanzanian government has once again started mining the lake for soda ash, used for making chemicals, glass and detergents. Although the planned operation will be located more than 40 miles away, drawing the soda ash in through pipelines, conservationists worry it could still upset the natural water cycle and breeding grounds. For now, though, life prevails – even in a lake that kills almost everything it touches.46. What can we learn about Lake Natron?A) It is simply uninhabitable for most animals.B) It remains little known to the outside world.C) It is a breeding ground for a variety of birds.D) It makes an ideal habitat for lots of predators.47. Flamingos nest only when the lake water is at a specific level so that their babies can ______.A) find safe shelter more easily C) stay away from predatorsB) grow thick feathers on their feet D) get accustomed to the salty water48. Flamingos in the Rift Valley are unique in that _______.A) they can move swiftly across lagoons C) they breed naturally in corrosive ditchesB) they can survive well in salty water D) they know where and when to nest49. Why can certain species of tilapia sometimes survive around Lake Natron?A) They can take refuge in the less salty waters.B) They can flee quick enough from predators.C) They can move freely from lagoon to lagoon.D) They can stand the heat of the spring water.50. What may be the consequence of Tanzania n government’s planned operation?A) The accelerated extinction of flamingos.B) The change of flamingos’ migration route.C) The overmining of Lake Natron’s soda ash.D) The disruption of Lake Natron’s ecosystem.It is the season for some frantic last-minute math across the country, employees of all stripe are counting backward in an attempt to figure out just how much paid time-off they have left it their reserves. More of them, though, will skip those calculations altogether and just power through the holidays into 2017: More than half of American workers don’t use up all of thei r allotted vacation days each year.Not so long ago, people would have turned up their noses at that kind of dedication to the job. As marketing professors Silvia Bellezza, Neeru Paharia, and Anat Keinan recently explained in Harvard Business Review (HBR), leisure time was once seen as an indicator of high social status, something attainable only for those at the top. Since the middle of the 20th century, though, things have turned the opposite way –these days, punishing hours at your desk, rather than days off, are seen as the mark of someone important.In a series of several experiments, the researchers illustrated just how much we’ve come to admire busyness, or at least the appearance of it. Volunteers read two passages, on about a man who led a life of leisure and another about a man who was over-worked and over –scheduled; when asked to determine which of the two had a higher social status, the majority of the participants said the latter. The same held true for people who used products that implied they were short on time: In one experiment, for example, customers of the grocery-delivery service Peapod were seen as of higher status than people who shopped at grocery stores that were equally expensive; in another, people wearing wireless headphones were considered further up on the social ladder than those wearing regular headphones, even when both were just used to listen to music.In part, the authors wrote in HBR, this pattern may have to do with the way work itself has changed over the past several decades.We think that the shift from leisure-as-status to busyness-as-status may be linked to the development of knowledge-intensive economics. In such economies, individuals who possess the human capital characteristics that employers or clients value(e.g., competence and ambition) are expected to be in high demand and short supply on the job market. Thus, by telling others that we are busy and working all the time, we are implicitly suggesting that we are sought after, which enhances our perceived status.Even if you feel tempted to sacrifice your own vacation days for fake busyness, though, at least consider leaving your weekends unscheduled. It’s for your own good.51. What do most employees plan to do towards the end of the year?A) Go for a vacation. C) Set an objective for next year.B) Keep on working. D) Review the year’s achievements.52.How would people view dedication to work in the past?A) They would regard it as a matter of course.B) They would consider it a must for success.C) They would look upon it with contempt.D) They would deem it a trick of businessmen.53. What did the researchers find through a series of experiments?A) The busier one appears, the more respect one earns.B) The more one works, the more one feels exploited.C) The more knowledge one has, the more competent one will be.D) The higher one’s status, the more vacation time one will enjoy.54. What may account for the change of people’s attitude towards being busy?A) The fast pace of life in modern society.B) The fierce competition in the job market.C) The widespread use of computer technology.D) The role of knowledge in modern economy.55. What does the author advise us to do at the end of the passage ?C) Plan time to relax however busy we are.D) Avoid appearing busy when we are not.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 2.洞庭湖位于湖南省东北部，面积很大，但湖水很浅。
英语六级真题及答案17年12月3
2017年12月六级部分真题参考答案(完整版)Part Ⅰ WritingBe Generous with Your HelpWhen it comes to the topic of help, we are frequently told that,"Help others, and you will be helped when you are in need. '' Simple as the sa ying is, it implies the importance of helping others in need. What I learn from the remark, in short words, is that helping others is helping yourself. Examples can easily be found to make this point clearer. The story of the ant and the dove is a case in point. An ant slipped into the river when drinking alo ng the river. A dove heard his cries for help and threw him a leaf, which helpe d the ant float back to the bank. After a few days, a hunter was raising his g un to the dove as she was building her nest. Seeing this, the ant ran quickly t o bite the hunter's leg. The dove heard the hunter's scream and flew away. All in all, this example indicates that when we offer our help to others, we are leaving a way open for the future. Helping others is a virtue, and we should take some measures to carry forward this virtue and do others a favor. Only in this way can we build a loving and harmonious society.Part Ⅱ Listening Comprehension说明：由于2017年12月六级考试全国共考了2套听力，本套真题听力与前2套内容完全一样，只是顺序不一样。
2017年6月英语六级考试真题答案(卷三)
2017年6月大学英语六级考试听力答案（卷三）Part II Listening ComprehensionSection A News1. B) The test driver made a wrong judgment2. D) They have generally done quite well.3. A) He works at a national park.4. B) They were making a lot of noise.5. A) The discovery of a new species of snake.6. C) A snake crawled onto his head in his sleep.7. D) From its color.Section BConversation 18. C) His flight is leaving in less than 2 hours.9. B) By credit card.10. A) Give him a receipt.11. D) Posting a comment on the hotel’s webpage.Conversation 212. C) He has stopped making terrible faces.13. D) Warn him of danger by making up a story.14. A) They could break pp’s legs.15. B) One would have to shave their head to remove a bat in their hair. Section CPassage 116. C) Everything seemed to be changing.17. A) Meeting people.18. D) He was a young student in the 1960s.Passage 219. B) They avoid looking at them.20. C) It focuses its eyes on their mouths.21. B) By taking in their facial expressions as a whole.Passage 322. D) They resort to different means to survive the bitter cold.23. C) They consume the energy stored before the long sleep.24. A) By storing enough food beforehand25. C) To stay safe2017年6月大学英语六级考试阅读：选词填空答案（卷三）选词填空（一）：一半大脑警觉文章开头：Half of your brain stays alert and prepared for danger when you sleep in a new place26. K) referred27. O) volunteers28. M) specifically29. H) novel30. I) potential31. E) identified32. L) species33. G) marine34. B) consciously35. J) predators2017年6月大学英语六级考试阅读：信息匹配答案（卷三）信息匹配（三）D 36. A number of factors are driving down the global oil prices not just for now but in the foreseeable future.L 37. Pricing carbon proves the most economical way to reduce greenhouse gas emissions.J 38. It is estimated that extreme weather conditions have endangered the lives of millions of African children.E 39. The prices of coal are low as a result of over-supply and decreasing demand.H 40. Higher fossil fuel prices prove to be conducive to innovation and application of cleaner technology.A 41. If fossil fuel prices remain low for a long time, it may lead to higher emissions of greenhouse gases.G 42. Fossil fuels remain the major source of primary energy consumption in today’s world.F 43. Even major fossil exporting countries have great potential to develop renewable energies.O 44. Greenhouse gas emissions, if not properly dealt with, will pose endless risks for mankind.B 45. It is urgent for governments to increase the cost of using fossil fuels to an appropriate level to lessen the catastrophic effects of climate change.2017年6月英语六级阅读答案：仔细阅读（卷三）46. B) They formulated a dress code with distinctive American features.47. D) It was a completely new invention.48. C) Ease of care49. A) A shift of emphasis from beauty to utility.50. C) They advocated equity between men and women.51. D)They have changed the previous migration habits of certain birds.52. D)They are more likely to be at risk of dying53. B)They may eat something harmful.54. C)They are not attracted to the rubbish dumps on their migration routes.55. A)The potential harm to the ecosystem.。
2017年6月英语六级考试真题试卷附答案(完整版 第3套)
2017年6月英语六级考试真题试卷附答案(完整版第3套)Part I Writing (30 minutes)Directions: Suppose you are asked to give adviceon whether to attend college at home or abroad, writ e an essay to state your opinion. You arerequired to write at least 150 words but no more than 200 w ords.________________________________________________________________________________________________________________________________________________________________________________________________________________________PartⅠWritingWhether to Attend College at Home or Abroad?Currently, with studying abroad gains mounting popularity among people, there is a heated debate a bout whether to attend college at homeor abroad. Opinions on this topic vary from person to person. Some see more benefits instudying at home while others claim that studying abroad is a more ideal c hoice as it's more challenging.Personally, I am a strong favorer of the latter view. Listed below are the reasons for my advice. First o f all, attending college abroad provides an opportunity to broaden one's experience andmind. You c an acquire cross-cultural experiences and gain new perspectives on your chosenfield of study. In add ition, studying abroad helps you to polish your social skills; you canmake friends with different peop le with different background. Thirdly, overseas studying is conducive to the formation of an indepen dent, autonomous and tenacious personality, which will ultimately benefit the achievement of our life goals.Just as an old saying goes:"It is better to travel thousand miles than to read ten thousandbooks." Then studying abroad can not only enable us to reap in our books, but also in our trips. And this is why attending college abroad is a preferable selection for me.Part Ⅱ Listening Comprehension说明：2017年6月大学英语六级真题全国共考了两套听力。
2017年6月英语六级考试真题答案(第3套)
2017年6月六级第三套真题参考答案(完整版)Part Ⅰ WritingWhether to Attend College at Home or Abroad?Currently, with studying abroad gains mounting popularity among people, there is a heated debate about whether to attend college at home or abroad. Opinions on this topic vary from person to person. Some see more benefits in studying at home while others claim that studying abroad is a more ideal choice as it's more challenging.Personally, I am a strong favorer of the latter view. Listed below are the reasons for my advice. First of all, attending college abroad provides an opportunity to broaden one's experience and mind. You can acquire cross-cultural experiences and gain new perspectives on your chosen field of study. In addition, studying abroad helps you to polish your social skills; you can make friends with different people with different background. Thirdly, overseas studying is conducive to the formation of an independent, autonomous and tenacious personality, which will ultimately benefit the achievement of our life goals.Just as an old saying goes: "It is better to travel thousand miles than to read ten thousand books." Then studying abroad can not only enable us to reap in our books, but also in our trips. And this is why attending college abroad is a preferable selection for me.Part Ⅱ Listening Comprehension说明：2017年6月大学英语六级真题全国共考了两套听力。
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2017大学英语六级听力改革练习题三
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◆29.A. Coca Cola.
B. Sausage.
C. Milk.
D. Fried chicken.
◆30.A. He has had thirteen decayed teeth.
B. He doesn't have a single decayed tooth.
C. He has fewer decayed teeth than other people of his age.
D. He never had a single tooth pulled out before he was fifty.
◆31.A. Brush your teeth right before you go to bed in the evening.
B. Have as few of your teeth pulled out as possible.
C. Have your teeth X-rayed at regular intervals.
D. Clean your teeth shortly after eating.
听力原文：
How many teeth have you had filled in the past twoyears? If you follow the advice of Dr. Faustick, youmay be able to reduce the number of your visits to adentist. Dr. Faustick conducted a two-year surveyto find out how to prevent or reduce dental decay. 946 students took part in the experiment. 523students cleaned their teeth within ten minutes ofeating. When possible, they used a toothbrush; when
this was impossible, they washed theirmouth thoroughly with water. The remaining 423 students merely cleaned their teeth whenthey went to bed and when they got up in the morning. All the students had
their teeth X-rayed at the end of the first and second years. At the end of the first year, the night andmorning group had three times as many decayed teeth as the clean-after-each-meal group. Atthe end of the second year, the latter group had 53 percent fewer decayed teeth than theformer group. Dr. Faustick has cleaned his teeth after every meal for thirteen years and [30]hasnot had a single decayed tooth. He pointed out that [29]sugar is a major agent in dentaldecay, particularly the sugar in sweets, cakes, and soft drinks. [31]Ideally you should keep atoothbrush in your pocket and use it immediately
after you have finished eating. When this isimpractical, you can at least make sure that you have a drink of water and let the waterthrough your teeth to force out any particles of food. 7 out of 10 people lose at least half theirteeth by the time they are fifty. Many have a complete set of false teeth by that time. In anycase, neither toothache nor a visit to a dentist is very pleasant. So it is worthwhile making aneffort to keep your own teeth as long as possible. The main preventative agent is simply water.
参考答案
Questions 29 to 31 are based on the passage you have just heard.
29. According to the passage, what type of food or drink is most likely to cause dentaldecay?
正确答案：A
解析：短文提到，糖是造成蛀牙的元凶，尤其是糖果、蛋糕和软饮料中的
糖分。
在四个选项中，只有可口可乐符合题意。
所以答案为A。
30. What does the passage tell us about the condition of Dr. Faustick's teeth?
正确答案：B
解析：短文提到，Dr. Faustick没有一颗蛀牙(has not had a single decayed tooth)。
由此可知选B。
31. What does Dr. Faustick suggest to prevent dental decay?
正确答案：D
解析：短文提到，理想的做法是，你应该随身携带牙刷，吃完东西马上刷牙。
由此可知Dr. Faustick的建议是吃完饭立刻刷牙，所以答案为D。