精品2016年12月大学英语四级考试模拟试卷及答案(21)
12月CET4模拟试卷及答案（3）
12月CET4模拟试卷及答案（3）2016年12月CET4模拟试卷及答案Part ⅢVocabulary (20 minutes)Directions:There are 30 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.41.A great deal of ___ for our success should go to Michael Lee, head of our team.A) merit B) creditC) favor D) reward42.They question whether a fair way can be ___ to tell which employees really perform better than their fellow employees.A) depicted B) devisedC) decorated D) designated43.The report indicates that it is financially ___ to build a water power station in the area.A) adaptable B) availableC) feasible D) flexible44.Somehow she felt that she herself had to some extent been the cause of all the trouble,and suffered___.A) accordingly B) respectivelyC) consequently D) incidentally45.The gas company ___ a leak in the main line and evacuated all the tenants of the building.A) detected B) inspectedC) discerned D) explored46.At the 27th Olympic Games she ___ two gold and one silver medals in the track and field events.A) carried away B) carried offC) carried over D) carried through47.More than 790,000 youths were reported to have____the National Master’s Entrance Examination last year.A) sat on B) sat upC) sat in D) sat for48.As a general rule, people with a great deal of ___ often have admiring friends and bitter enemies.A) personality B) temperamentC) disposition D) character49.After she gave birth to a child, she was ___ to go back to work in order to make the ends meet.A) compelled B) enforcedC) imposed D) depressed50.That football club tried to ___ the famous player with offers of a tremendous sum of money.A) deceive B) persuadeC) tempt D) indulge51.Many animal can ___ with their surroundings because of their protective coloring.A) integrate B) matchC) blend D) merge52.The strange phenomenon has ___ and puzzled many scientists for more a century.A) annoyed B) embarrassedC) fascinated D) frustrated53.As we all know, the same gestures may have different ___ which vary from one culture to another.A) implications B) presumptionsC) expressions D) assumptions54.With the advent of PC and home-information systems, we’ll one day be able to ___ most business dealings from home.A) implement B) executeC) conduct D) supplement55.It was an awful accident. I wonder how you managed to ___ without a scratch.A) see through B) come throughC) get through D) break though56.This difficult problem we face in the project has to be tackled before we can ___ to others.A) pursue B) advocateC) precede D) proceed57.While most scientists agree that the greenhouse effect is coming, there are not enough data yet to say with absolute ___ what its consequences will be.A) confirmation B) conformityC) conviction D) conscience58.It is a___that in such a rich and prosperous country there should be so many poverty-stricken people.A) controversy B) paradoxC) aversion D) conversion59.It’s a well-known fact that truth will in the end ___ over falsehood, and right over wrong.A) dominate B) prevailC) thrive D) conquer60.We can’t choose whet her we will pay income tax or not, for payment of income tax is ___.A) compulsory B) voluntaryC) arbitrary D) dutiable61.It’s generally agreed that fluctuations in birth rate are ___ to a number of economic factors.A) entitled B) attributedC) confined D) dedicated62.It’s always better to ___ a problem before it arises than to search for a solution to it afterwards.A) evaluate B) predictC) anticipate D) estimate63.It takes tremendous courage to ___ a belief that is not shared by many others.A) persist in B) abide byC) hold on D) adhere to64.As a good employer, he knows how to make full use of the ___ of his employees’ talents and abilities.A) validity B) integrityC) diversity D) versatility65.Over the years jazz has changed and developed but it has essentially ___ its fundamental characteristics.A) remained B) retainedC) reserved D) resumed66.Economics is a subject that ___ all people’s lives whether they are conscious of it or not.A) draws on B) catches onC) touches on D) embarks on67.When one gets a good ___ into a problem, he will usually find a way to approach it or solve it.A) outlook B) perspectiveC) version D) insight68.She cares much about other people’s opinions about her and is particularly ___ to personal criticisms.A) sensational B) sentimentalC) sensible D) sensitive69.My secretary has typed out the first___of the report,but I must revise it before I submit to the conference.A) draft B) sketchC) script D) outline70.They reported the loss in the financial fraud and gave all the necessary ___ to the police.A) particulars B) provisionsC) procedures D) precautionsPart ⅤWriting (30 minutes)Directions: For this part, you are allowed 30 minutes to write a composition on the topic Economic Development and Moral Decline. You should write at least 150 words and you should base your compositionon the outline (given in Chinese) below:1.近年来我国经济建设取得了很大成就2.但与此同时,社会风气随着经济的发展也日益下降下载文档。
2016年12月大学英语四级答案
参考答案WRITINGStated-owned business or Joint ventureUpon graduation,virtually all college students will confront the problem of the career choice，which is truly a tough choice.Students'opinions differ greatly on this issue.Some hold that there is no better way to get a decent job than working in a stated-owned business which will guarantee my life after retirement,but others take the attitude that a joint venture outweighs any other jobs as it may provide higher income for employees.As to myself,I prefer the latter view.A joint venture,especially ahigh-salary joint venture,exerts a tremendous fascination on a great number of people,with no exception to me.Although it might be impossible to make sure my retirement pension is good enough,high-salary is exactly what I need just now.In my view,our career choices largely depend on where we want to stay for the rest of life.For me,metropolis is the place where I can grasp loads of opportunities and achieve my personal dreams.As I hold the view that live in the moment,not the future,and also in order to finance myself in some aspects such as the transportation,the house-renting,or social activities,a joint venture can satisfy my needs for the consumption I mentioned above.In short,a joint venture is the first and only consideration in my choice of career.Listening ComprehensionSection A1.[A]2.[B]3.[B]4.[C]5.[D]6.[C]7.[A]Section B8.[D]9.[B]10.[D]11.[C]12.[D]13.[A]14.[C]15.[B] Section C16.[D]17.[C]18.[B]19.[C]20.[A]21.[D]22.[B]23.[B]24.[A]25.[A]Reading comprehensionSection A26.[E]challenges27.[J]searched28.[D]categorizing29.[K]similarities30.[L]slightly31.[G]percentage32.[O]traditional33.[I]regardless34.[H]proving35.[M]suggestsSection B36.[I]37.[D]38.[J]39.[F]40.[B]41.[H]42.[C]43.[K]44.[G]45.[E]Section C●Passage146.[B]He intends to get rid of the tipping practice.47.[C]It forces the customer to compensate the waiter.48.[D]They can have some say in how much their servers earn.49.[A]Services quality has little effect on tip size.50.[D]Waiters should be paid by employers instead of customers.●Passage251.[C]The impact of cheap oil on global economic growth.52.[D]Consumers will spend their savings from cheap oil on other commodities.53.[C]They use their money reserves to back up consumption.54.[B]Its negative effects more than cancel out its positive effects.55.[C]Oil importers account for a larger portion of the global economy.Translation参考译文：The color of red in Chinese culture usually means good luck,longevity and happiness.Red can be found everywhere during Chinese Spring Festival and other joyous occasions.Cashes often in red envelopes are sent to family members or close friends as gifts.Its popularity can also be attributed the fact that people accociate it with Chinese revolution and Communist Party. However,it does not always equal to good luck and joy in that the name of the dead used to be written in ing red ink to write names of Chinese people were seen as an offense.。
精品2016年12月大学英语四级模拟预测卷及答案(1)
2016年12月大学英语四级模拟预测卷及答案（1）Directions: There are 4 reading passages in this part. 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 the Answer Sheet with a single line through the center.Passage OneQuestions 21 to 25 are based on the following passage.Acculturation, which begins at birth, is the process of teaching new generations of children the customs and values of the parents' culture. How people treat newborns, for example, can be indicative of cultural values. In the United States it is not uncommon for parents to put a newborn in a separate room that belongs only to the child. This helps to preserve parents' privacy and allows the child to get used to having his or her own room, which is seen as a first step toward personal independence. Americanstraditionally have held independence and a closely related value, individualism, in high esteem. Parents try to instill these prevailing values in their children. American English expresses these value preferences: children should "cut the (umbilical) cord" and are encouraged not to be "tied to their mothers' apron strings." In the process of their socialization children learn to "look out for number one" and to "stand on their own two feet".Many children are taught at a very early age to make decisions and be responsible for their actions. Often children work for money outside the home as a first step to establishing autonomy. Nine-or ten-year-old children may deliver newspapers in their neighborhoods and save or spend their earnings. Teenagers (13 to 18 years) may baby-sit neighbors' homes in order to earn a few dollar a week. Receiving a weekly allowance at an early age teaches children to budget their money, preparing them for futurefinancial independence. Many parents believe that managing money helps children learn responsibility as well as appreciate the value of money.21. According to this passage, the way peopletreat newborns _____.A) is a sign of their customsB) is an indication of their level of knowledgeC) symbolizes their social systemD) varies from culture to culture22. The expression, "to cut the cord", is used to show that _____.A) children don't like their parentsB) parents don't feel close to their childrenC) parents would not like to live together with their childrenD) independence from one's family is an important personal goal in USA23. Children who are "tied to the apron strings" _____.A) are caught in their mothers' apronsB) must always wear an apron when they eatC) are very dependent on their mothersD) are independent from their parents24. American people often let their children work for money outside the home at a very early age because _____.A) children have to earn money to help the familyB) they need more moneyC) they want them to begin establishing autonomyD) children have to save money for future use25. It can be inferred from this passage that_____.A) Americans are money loversB) Americans admire independenceC) Americans are good at decision-makingD) Americans are all responsiblePassage TwoQuestions 26 to 30 are based on the following passage.Many people believe that the glare from snow causes snowblindness. Yet, dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snowblindness, when exposed to several hours of "snow light".The United States Army has now determined that glare from snow does not cause snowblindness in troops in a snow-covered country. Rather, a man's eyes frequently find nothing to focus on in a broad expanse of barren snow-covered terrain. So his gazecontinually shifts and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and the eyeballs become sore and the eye muscles ache. Nature offsets this irritation by producing more and more fluid which covers the eyeballs. The fluid covers the eyeball in increasing quantity until vision blurs, then is obscured, and the result is total, even though temporary, snowblindness.Experiments led to the Army to a simple method of overcoming this problem. Scouts ahead of a main bodyof troops are trained to shake snow from evergreen bushes, creating a dotted line as they crosscompletely snow-covered landscape. Even the scouts themselves throw lightweight, dark colored objects ahead on which they too can focus. The men following can then see something. Their gaze is arrested. Their eyes focus on a bush and having found something to see, stop scouring the snow-blanketed landscape. Byfocusing their attention on one object at a time, the men can cross the snow without becoming hopelessly snowblind or lost. In this way the problem of crossing a solid white terrain is overcome.26. To prevent headache, watering eyes and blindness caused by the glare from snow, dark glasses are _____.A) indispensableB) usefulC) ineffectiveD) available27. When the eyes are sore tears are produced to _____.A) clear the visionB) remedy snowblindnessC) ease the irritationD) loosen the muscles28. Snowblindness may be avoided by _____.A) concentrating on the solid white terrainB) searching for something to look at in snow-covered terrainC) providing the eyes with something to focus onD) covering the eyeballs with fluid29. The eyeballs become sore and the eye muscles ache because _____.A) tears cover the eyeballsB) the eyes are irritated by blinding sunlightC) the eyes are irritated by blinding snowD) there is nothing to focus on30. A suitable title for the passage would be_____.A) Snowblindness and How to Overcome ItB) Nature's Cure for SnowblindnessC) Soldiers in the SnowD) Snow VisionPassage ThreeQuestions 31 to 35 are based on the following passage.Until the 1980s, the American homeless population comprised mainly older males. Today, homelessness strikes much younger part of society. In fact, a 25-city survey by the U.S. Conference of Mayors in 1987 found that families with children make up the fastest growing part of the homeless population. Many homeless children gather in inner cities; this transient and frequently frightened student population creates additional problems-both legal and educational-for already overburdened urban school administrators and teachers.Estimates of the number of homeless Americansrange from 350,000 to three million. Likewise, estimates of the number of homeless school children vary radically. A U.S. Department of Education report, based on state estimates, states that there are220,000 homeless school-age children, about a third of whom do not attend school on a regular basis. But the National Coalition for the Homeless estimates that there are at least two times as many homeless children, and that less than half of them attend school regularly.One part of the homeless population that is particularly difficult to count consists of the "throwaway" youths who have been cast off their homes. The Elementary School Center in New York Cityestimates that there are 1.5 million of them, many of whom are not counted as children because they do not stay in family shelters and tend to live by themselves on the streets.Federal law, the Stewart McKinney Homeless Assistance Act of 1987, includes a section that addresses the educational needs of homeless children. The educational provisions of the McKinney Act are based on the belief that all homeless children havethe right to a free, appropriate education.31. In 1987, the American homeless population was made up of _____.A) older males B) school childrenC) adults D) both A and B32. The author implies in the first paragraph that _____.A) the homeless population is growing rapidlyB) there is serious shortage of school administrators and teachersC) homeless children often move from place to placeD) homeless children usually stay outside schools33. The National Coalition for the Homeless estimates that there are _____ homeless children.A) 7000,000 B) 350,000C) 440,000 D) 70,00034. One part of the homeless population isdifficult to count. The reason might be that _____.A) homeless children live on the streetsB) homeless children have no parentsC) the homeless are too young to be counted as childrenD) the homeless children are not taken as members of their families35. The aim of the McKinney Act is to _____.A) offer education for homeless childrenB) provide family shelters for homeless childrenC) reduce the number of homeless childrenD) estimate the number of homeless populationPassage FourQuestions 36 to 40 are based on the following passage.If women are mercilessly exploited year after year, they have only themselves to blame. Because they tremble at the thought of being seen in public in clothes that are out of fashion, they are always taken advantage of by the designers and the big stores. Clothes which have been worn only a few times have to be put aside because of the change of fashion. Whenyou come to think of it, only a woman is capable of standing in front of a wardrobe(衣柜) packed full of clothes and announcing sadly that she has nothing to wear.Changing fashions are nothing more than the intentional creation of waste. Many women spend vast sums of money each year to replace clothes that have hardly been worn. Women who cannot afford to throw away clothing in this way, waste hours of their time altering the dresses they have. Skirts are lengthened or shortened; necklines are lowered or raised, and so on.No one can claim that the fashion industry contributes anything really important to society. Fashion designers are rarely concerned with vital things like warmth, comfort and durability(耐用). They are only interested in outward appearance and they take advantage of the fact that women will put up with any amount of discomfort, as long as they look right. There can hardly be a man who hasn't at some time in his life smiled at the sight of a woman shaking in a thin dress on a winter day, or delicately picking her way through deep snow in high-heeled shoes.When comparing men and women in the matter of fashion, the conclusions to be drawn are obvious. Do the constantly changing fashions of women's clothes, one wonders, reflect basic qualities of inconstancy and instability? Men are too clever to let themselves be cheated by fashion designers. Do their unchangingstyles of dress reflect basic qualities of stability and reliability? That is for you to decide.36. Designers and big stores always make money .A) by mercilessly exploiting women workers in the clothing industryB) because they are capable of predicting new fashionsC) by constantly changing the fashions in women's clothingD) because they attach great importance to quality in women's clothing37. To the writer, the fact that women alter their old-fashioned dresses is seen as .A) a waste of money B) a waste of timeC) an expression of taste D) an expression of creativity38. The writer would be less critical if fashion designers placed more stress on the of clothing.A) cost B) appearanceC) comfort D) suitability39. According to the passage, which of the following statements is TRUE?A) New fashions in clothing are created for the commercial exploitation of women.B) The constant changes in women's clothingreflect their strength of character.C) The fashion industry makes an important contribution to society.D) Fashion designs should not be encouraged since they are only welcomed by women.40. By saying "the conclusions to be drawn are obvious" (Lines 1-2, Para. 4) the writer means that .A) women's inconstancy in their choice of clothing is often laughed atB) women are better able to put up with discomfortC) men are also exploited greatly by fashion designersD) men are more stable and reliable in characterPart III Vocabulary (20 minutes)Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE answer that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.41. They went to make her feel at home.A) out B) aboutC) out of their way D) their way42. Many species of animals which once lived on the earth are no longer in .A) evidence B) effectC) essence D) existence43.China's first automatic four-color glass printer was by a worker-technician.A) discovered B) recognizedC) invented D) revealed44. When we found out that the village was short of hands for the building of the reservoir, we all went there to .A) help out B) lend our handsC) give our hands D) their rescue45. his accent, he must be from the south.A) Concerned B) DeterminedC) Judging by D) Decided by46. This middle school is attached a normal college.A) for B) by C) to D) in47. After a while he to inform me of the progress of the work.A) set off B) beginningC) began with D) proceeded48. The peasants supply the workers with food, and the workers supply the peasants with manufactured goods.A) at turn B) on turnC) in turn D) by turns49. He felt uneasy at the of his mother's illness.A) risk B) costC) thought D) point50. Peasants over 80 percent of the Chinese population.A) make B) consistC) are composed D) constitute51. The reactionary policemen broke and arrested many progressive students.A) out B) into C) in D) off52. As far as the quality of tones is concerned, this radio-set is quite .A) up to the standard B) up to no goodC) in demand D) well up in53. The mass of an object is multiplied by the speed of light squared; other words, the speed oflight is multiplied by itself.A) by B) for C) in D) with54. People do not like such persons who are always the way of others.A) on B) by C) in D) get into55. In Japan men usually have to when they reach the age of 55.A) abandon B) dismiss C) retire D) resign56. Your father likes to play golf; he's really enthusiastic it.A) by B) about C) with D) on57. I ran Alice, who was on her way to see how I was getting along.A) up B) out C) over D) into58. He felt quite when he stayed with us.A) pleasantly B) anxiously C) at ease D) easily59. In less than a year, he came to terms his life and work there.A) to B) with C) in D)for60. I a girl in Hawaii; we write to each other once a month.A) communicate by B) drop a lineC) correspond to D) correspond with61. He longed to visit Beijing, he dreamed about it.A) much so that B) so much so muchC) much so much that D) so much so that62. We should read the daily press to keep current events.A) under B) track ofC) faith with D) count of63. All the people in this village have black hair. They all each other.A) resemble as B) resemble withC) resemble D) resemble from64. It's unfortunate that our director simply sat our suggestions and did nothing about it.A) out B) in C) on D) over65. The noise was terrible, but I had to live it.A) with B) through C) down D) on66. As soon as World War II ended, Einstein urged that atomic energy put to peaceful uses.A) is B) would be C) was to D) be67. I spoke to the child kindly him.A) as not frighten B) so as not to frightenC) for not frightening D) in order to not frighten68. , she ran out of the room..A) Having tears in her eyes and turned suddenlyB) With a sudden turn, tearful eyesC) Turning suddenly, with tears in her eyesD) With tears in her eyes and suddenly turning69. We were overjoyed at the news of China her own manmade satellite.A) to have launched B) to launchC) launched D) having launched70. enter university one day, I would work very hard.A) Would I ever B) Ever would IC) Ever should I D) should I everPart IV Translation (15 minutes)Directions: Translate the five sentences from the four reading passages into Chinese.71. How people treat newborns, for example, can be indicative of cultural values.72. Often children work for money outside the home as a first step to establishing autonomy.73. So his gaze continually shifts and jumps back and forth over the entire landscape in search of something to look at.74. Estimates of the number of homeless Americans range from 350,000 to three million.75. Many women spend vast sums of money each year to replace clothes that have hardly been worn.Part V Writing (30 minutes)Directions: For this part, you are allowed thirty minutes to write a composition on the topic "HonestyIs the Best Policy ". You should write at least 100 words and base your composition on the outlines given below.1. My understanding of the proverb "Honest Is the Best Policy" (诚实为上策).2. The results of dishonesty.3. My conclusion.Honesty Is the Best Policy答案21. ADCCB 26. CCCDA 31. DBCDA 36. CBCAD41. CDCAC 46. CDCCD 51. CACCC 56. BDCBD 61. DBCCA 66. DBCDD71. 比如说，人们如何对待新生儿可以显示出文化价值观来。
2016年12月大学英语四级考试真题及答案
2016 年 12 月大学英语四级考试真题（第一套）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 allowed30 minutes to write an essay.Suppose you have two options upon graduation:one is to take a job in a company and the other to go to a graduate school.You are to make a choice between the two.Write an essay to explain the reasons for your choice. You should write at least 120 words but nomore than 180 words.Much controversy has been aroused about whether the students should find a job or start their own business after graduation.Taking a look around,we can find that some graduates bustle around job markets,while others choose to run a shop on TMall. However, I prefer the former choice.From my perspective, there are good reasons to find a job in the first severalyears after their graduation.First and foremost, if a graduate intends to accumulate working experience and learn from the seniors, it is advisable for him to find ajob. It is an undeniable fact that the theoretical knowledge will provide thegraduates with the ability to consider things comprehensively,however,only under the integration with practice can the rigid knowledge be useful for their futuredevelopment. Inevitably, doing something small is the premise of undertakingsomething great. Take Jack Ma, the founder of Alibaba and taobao, for example. Healso finds some jobs before establishing his own career,laying a solid foundation for his later success.Consequently,it is of great necessity to find a job after graduation.I firmly believe that it will continue to bring about more returns to our life and future.Part II Listening Comprehension (25 minutes)Section ADirections: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard.1.A) It was going to be renovated.B) He could no longer pay the rent.C) It was dangerous to live in.D) He had sold it to the royal family.【答案】 C2.A) A storm.B) A strike.C) A forest fire.D) A terrorist attack.【答案】 AQuestions 3 and 4 are based on the news report you have just heard.3.A) They lost contact with the emergency department.B)They were injured by suddenly falling rocks.C)They sent calls for help via a portable radio.D)They were trapped in an underground elevator.【答案】 D4.A) They provided the miners with food and water.B)They sent supplies to keep the miners warm.C)They released the details of the accident.D)They tried hard to repair the elevator.【答案】 BQuestions 5 to 7 are based on the news report you have just heard.5.A) Raise postage rates.B) Improve its services.C)Close some of its post offices.D)Redesign delivery routes.【答案】 C6.A) Closing offices on holidays.B)Shortening business hours.C)Computerizing mail sorting processes.D)Stopping mail delivery on Saturdays.【答案】 D7.A) A lot of controversy will arise.B)Taxpayers will be very pleased.C)Many people will begin to complain.D)Many post office staff will lose their jobs.【答案】 DSection BDirections: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B)y C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8.A) He will lose part of his pay.B)He will go through retraining.C)He will be given a warning.D)He will be kept from promotion.【答案】 A9.A) He is an experienced press operator.B)He is a trustworthy guy.C)He is always on time.D)He is on good terms with his workmates.【答案】 B10.A) She is a trade union representative.B)She is a senior manager of the shop.C)She is better at handling such matters.D)She is in charge of public relations.【答案】 C11.A) He is always trying to stir up trouble.B)He is skilled and experienced.C)He is very close to the manager.D)He is always complaining about low wages.【答案】 AQuestions 12 to 15 are based on the conversation you have just heard.12.A) Open.B)Reserved.C)Selfish.D)Friendly.【答案】 B13.A) They read a book.B)They talk about the weather.C)They stay quiet.D)They chat with fellow passengers.【答案】 C14.A) She was unwilling to make friends with workmates.B) She was never invited to a colleague’ s home.C)She was eager to visit an English castle.D)She was always treated as a foreigner.【答案】 B15.A) Houses are much more quiet.B)They want to have more space.C)They want a garden of their own.D)Houses provide more privacy.【答案】 DSection CDirections: In this section, you will hear three passages. At the end of eachpassage, 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 letteron Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16.A) They will automatically be given hiring priority.B)They don ’ t have to go through job interviews.C)They are likely to get much higher pay.D)They don ’ t have much choice of jobs.【答案】 A17.A) Visit the school careers service.B)Ask their professors for help.C)Look at school bulletin boards.D)Go through campus newspapers.【答案】 A18.A) Providing students with information about the library.B)Helping students arrange appointments with librarians.C)Supervising study spaces to ensure a quiet atmosphere.D)Helping students find the books and journals they need.【答案】 CQuestions 19 to 21 are based on the passage you have just heard.19.A) It tastes better.B)It may be sold at a higher price.C)It is easier to grow.D)It can better survive extreme weathers.【答案】 B20. A) It can grow in drier soil.B)It is immune to various diseases.C)It will replace green tea one day.D)It is healthier than green tea.【答案】 D21. A) It does not have a stable market.B) It has made tea farmers’ life easier.C)It does not bring the promised health benefits.D)It has been well received by many tea drinkers.【答案】 AQuestions 22 to 25 are based on the passage you have just heard.22.A) They care more about environment.B)They decorate their homes themselves.C)They prefer unique objects of high quality.D)They need decorations to show their status.【答案】 C23.A) They made great contributions to society.B) They could only try to create at night.C)They were proud of their creations.D)They focused on the quality of their products.【答案】 B24.A) Identify fake crafts.B)Make wise choices.C)To arouse public interest in crafts.D)To boost the local economy.【答案】 B25.A) To attract foreign investments.B)To preserve the traditional culture.C)Design handicrafts themselves.D)Learn the importance of creation.【答案】 DPart 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. Eachchoice in the bank is identified by a letter.Please mark the corresponding letterfor each item on Answer Sheet 2 with a single line through the centre. You may notuse any of the words in the bank more than once.Many men and women have long bought into the idea that there are“ male” and “female” brains,believing that explains just about every difference between the sexes. A new study __26__ that belief, questioning whether brains really canbe distinguished by gender.In the study, Tel Aviv University researchers __27__ for sex differencesthroughout the entire human brain.27._____A)abnormalB)appliedC)brieflyD)categorizingE)challengesF)figureG)percentageH)provingI)regardlessJ)searchedK)similaritiesL)slightlyM)suggestsN)tastesO)traditionalAnd what did they find? Not much. Rather than offer evidence for __28__ brains as “ male” or“ female,” research shows that b rains fall into a wide range, with most people falling right in the middle.28._____A) abnormalB) appliedC) brieflyD) categorizingE) challengesF) figureG) percentageH) provingI) regardlessJ) searchedK) similaritiesL) slightlyM) suggestsN) tastesO) traditionalDaphna Joel, who led the study, said her research found that while there aresome gender-based—__29__ , many different types of brain can’ t always be distinguished by gender.29._____A) abnormalB) appliedC) brieflyD) categorizingE) challengesF) figureG) percentageH)provingI)regardlessJ)searchedK)similaritiesL)slightlyM)suggestsN)tastesO)traditionalWhile the “average ” male and “ average ” female brains were __30__ different, you couldn ’ t tell it by looking at individual brain scans. Only a small __31__ ofpeople had“ all-male” or“ all-female” characteristics.30._____31._____A)abnormalB)appliedC)brieflyD)categorizingE)challengesF)figureG)percentageH)provingI)regardlessJ)searchedK)similaritiesL)slightlyM)suggestsN)tastesO)traditionalLarry Cahill, an American neuroscientist (神经科学家), said the study is an important addition to a growing body of research questioning __32__ beliefs aboutgender and brain function.But he cautioned against concluding from this study that all brains are the same, __33__ of gender.32._____33._____A)abnormalB)appliedC)brieflyD)categorizingE)challengesF)figureG)percentageH)provingI)regardlessJ)searchedK)similaritiesL)slightlyM)suggestsN)tastesO)traditional“There’ s a mountain of evidence __34__ the importance of sex influences at alllevels of brain function, M he told The Seattle Times.34._____A) abnormalB)appliedC)brieflyD)categorizingE)challengesF)figureG)percentageH)provingI)regardlessJ)searchedK)similaritiesL)slightlyM)suggestsN)tastesO)traditionalIf anything, he said, the study __35__ that gender plays a very important role in the brain—“ even when we are not clear exactly how.”35._____A)abnormalB)appliedC)brieflyD)categorizingE)challengesF)figureG)percentageH)provingI)regardlessJ)searchedK)similaritiesL)slightlyM)suggestsN)tastesO)traditionalSection 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 aparagraph more than once. Each paragraph is marked with a letter. Answer thequestions by marking the corresponding letter on Answer Sheet 2.Can Burglars Jam Your Wireless Security System?A)Any product that promises to protect your home deserves careful examination. So it isn't surprising that you ’ll find plenty of strong opinions about the potential vulnerabilities of popular home-security systems.B)The most likely type of burglary(入室盗窃 )by far is the unsophisticated crime of opportunity, usually involving a broken window or some forced entry. Accordingto the FBI, crimes like these accounted for roughly two-thirds of all householdburglaries in the US in 2013. The wide majority of the rest were illegal, unforcedentries that resulted from something like a window being left open. The odds ofcriminal using technical means to bypass a security system are so small that theFBI doesn ’ t even track those statistics.C)One of the main theoretical home-security concerns is whether or not a given system is vulnerable to being blocked from working altogether. With wired setups,the fear is that a burglar(入室盗贼 )might be able to shut your system down simplyby cutting the right cable.With a wireless setup,you stick battery-powered sensors up around your home that keep an eye on windows, doors, motion, and more. If theydetect something wrong while the system is armed, they ’ ll transmit a wireless alert signal to a base station that will then raise the alarm.That approach will eliminate most cord-cutting concerns —but what about their wireless equivalent,jamming? With the right device tuned to the right frequency,what ’ s to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?D)Jamming concerns are nothing new, and they ’ re not unique to security systems. Any device that ’ s built to receive a wireless signal at a specific frequency canbe overwhelmed by a stronger signal coming in on the same frequency.For comparison, let ’ s say you wanted to“ jam ” a conversation between two people — all you’ d need to do is yell in the listener’ s ear.E)Security devices are required to list the frequencies they broadcast on—that means that a potential thief can find what they need to know with minimalGoogling. They will,however,need to know what system they ’ re looking for. If you have a sign in your yard declaring what setup you use, that’ d point them in theright direction, though at that point, we’ re talking about a highly targeted,semi-sophisticated attack, and not the sort of forced-entry attack that makes upthe majority of burglaries.It’ s easier to find and acquire jamming equipment for some frequencies than it is for others.F)Wireless security providers will often take steps to help combat the threatof jamming attacks.SimpliSafe,winner of our Editors ’ Choice distinction,utilizesa special system that’ s capable of separating incidental RF interference fromtargeted jamming attacks.When the system thinks it’ s being jammed, it ’ ll notify you via push alert( 推送警报 ).From there,it’s up to you to sound the alarm manually.G)SimpliSafe was singled out in one recent article on jamming, complete witha video showing the entire system being effectively bypassed with handheld jamming equipment. After taking appropriate measure to contain the RF interference to ourtest lab, we tested the attack out for ourselves, and were able to verify that itis possible with the right equipment. However, we also verified that SimpliSafe’s anti-jamming system works. It caught us in the act,sent an alert to my smartphone, and also listed our RF interference on the system ’ s event log. The team behind the article and video in question make no mention of the system, or whether or not itdetected them.H)We like the unique nature of that software. It means that a thief likely wouldn ’t be able to Google how the system works, then figure out a way around itEven if they could, SimpliSafe claims that its system is always evolving, and thatit varies slightly from system to system, which means there wouldn ’ t be a universal magic formula for cracking it Other systems also seem confident on the subject ofjamming. The team at Frontpoint addresses the issue in a blog on its site, citingtheir own jam protection software and claiming that there aren’ t any documented cases of a successful jam attack since the company began offering wireless security sensors in the 1980s.I)Jamming attacks are absolutely possible. As said before, with the rightequipment and the right know-how,it’ s possible to jam any wireless transmission. But how probable is it that someone will successfully jam their way into your homeand steal your stuff?J)Let ’ s imagine that you live in a small home with a wireless security setup that offers a functional anti-jamming system. First, a thief is going to need totarget your home, specifically. Then, he’s going to need to know the technicaldetails of your system and acquire the specific equipment necessary for jamming your specific setup. Presumably, you keep your doors locked at night and while you'reaway, so the thief will still need to break in.That means defeating the lock somehow,or breaking a window. He’ ll or opened door would normally need to be jamming you at thisrelease the alarm. So, too,point, as a broken windowwould the motion detectorsin your home, so the thief will need to continue jamming once he’s inside and searching for things to steal. However, he’ll need to do so without tripping theanti-jamming system, the details of which he almost certainly does not have access to.K) At the end of the day, these kinds of systems are primarily designed to protect against the sort of opportunistic smash-and-grab attack that makes up the majority of burglaries.They’re also only a single layer in what should ideally be a many-sided approach to securing your home, one that includes common sense things like soundlocks and proper exterior lighting at night. No system is impenetrable, and nonecan promise to eliminate the worst case completely. Every one of them hasvulnerabilities that a knowledgeable thief could theoretically exploit. A goodsystem is one that keeps that worst-case setting as improbable as possible whilealso offering strong protection in the event of a less-extraordinary attack.36.It is possible for burglars to make jamming attacks with the necessaryequipment and skill.【答案】 I37.Interfering with a wireless security system is similar to interfering witha conversation.【答案】 D38.A burglar has to continuously jam the wireless security device toavoid triggering the alarm, both inside and outside the house.【答案】 J39.SimpliSafe provides devices that are able to distinguish incidental radiointerference from targeted jamming attacks.【答案】 F40.Only a very small proportion of burglaries are committed by technical means.【答案】 B41.It is difficult to crack SimpliSafe as its system keeps changing.【答案】 H42.Wireless devices will transmit signals so as to activate the alarm oncesomething wrong is detected.【答案】 C43.Different measures should be taken to protect one’ s home from burglary in addition to the wireless security system.【答案】 K44.SimpliSafe’ s device can send a warning to the house owner’s cellphone.【答案】 G45.Burglars can easily get a security device ’s frequency by Internet search.【答案】 ESection CDirections: There are 2 passages in this section. Each passage is followed bysome questions or unfinished statements. For each of them there are four choicesmarked A), B) , C) and D). You should decide on the best choice and mark thecorresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.As a person who writes about food and drink for a living, I couldn ’ t tell you the first thing about Bill Perry or whether the beers he sells are that great. ButI can tell you that I like this guy. That ’ s because he plans to ban tipping in favor of paying his servers an actual living wage.I hate tipping.I hate it because it’ s an obligation disguised as an option. I hate it forthe post-dinner math it requires of me. But mostly,I hate tipping because I believe I would be in a better place if pay decisions regarding employees were simply leftup to their employers, as is the custom in virtually every other industry.Most of you probably think that you hate tipping, too. Research suggestsotherwise.You actually love tipping!You like to feel that you have a voice in how much money your server makes. No matter how the math works out, you persistentlyview restaurants with voluntary tipping systems as being a better value, which makes it extremely difficult for restaurants and bars to do away with the tipping system.One argument that you tend to hear a lot from the pro-tipping crowd seems logical enough:the service is better when waiters depend on tips,presumably because they see a benefit to successfully veiling their contempt for you. Well, if this weretrue,we would all be slipping a few 100-dollar bills to our doctors on the way out their doors, too. But as it turns out, waiters see only a tiny bump in tips whenthey do an exceptional job compared to a passable one. Waiters, keen observers ofhumanity that they are, are catching on to this; in one poll, a full 30% said theydidn ’ t believe the job they did had any impact on the tips they received.So come on, folks: get on board with ditching the outdated tip system. Pay alittle more up-front for your beer or burger. Support Bill Perry’ s pub, and any other bar or restaurant that doesn’ t ask you to do drunken math.46.What can we learn about Bill Perry from the passage?A)He runs a pub that serves excellent beer.B)He intends to get rid of the tipping practice.C)He gives his staff a considerable sum for tips.D)He lives comfortably without getting any tips.【答案】 B47.What is the main reason why the author hates tipping?A)It sets a bad example for other industries.B)It adds to the burden of ordinary customers.C)It forces the customer to compensate the waiter.D)It poses a great challenge for customers to do math.【答案】 C48.Why do many people love tipping according to the author?A)They help improve the quality of the restaurants they dine in.B)They believe waiters deserve such rewards for good service.C)They want to preserve a wonderful tradition of the industry.D)They can have some say in how much their servers earn.【答案】 D49.What have some waiters come to realize according to a survey?A)Service quality has little effect on tip size.B)It is in human nature to try to save on tips.C)Tips make it more difficult to please customers.D)Tips benefit the boss rather than the employees.【答案】 A50.What does the author argue for in the passage?A)Restaurants should calculate the tips for customers.B)Customers should pay more tips to help improve service.C)Waiters deserve better than just relying on tips for a living.D)Waiters should be paid by employers instead of customers.【答案】 DPassage TwoQuestions 51 to 55 are based on the following passage.In the past, falling oil prices have given a boost to the world economy, but recent forecasts for global growth have been toned down, even as oil prices sink lower and lower. Does that mean the link between lower oil prices and growth has weakened?Some experts say there are still good reasons to believe cheap oil should heat up the world economy. Consumers have more money in their pockets when they ’ re paying less at the pump. They spend that money on other things,which stimulates the economy.The biggest gains go to countries that import most of their oil like China,Japan, and India. But doesn’ t the extra money in the pockets of those countries,consumers mean an equal loss in oil-producing countries,cancelling out the gains? Not necessarily,says economic researcher Sara Johnson.“Many oil producers built up huge reserve funds when prices were high, so when prices fall they will draw ontheir reserves to support government spending and subsidies (补贴 )for their consumers. ”But not all oil producers have big reserves. In Venezuela, collapsing oil prices have sent its economy into free-fall.Economist Carl Weinberg believes the negative effects of plunging oil pricesare overwhelming the positive effects of cheaper oil. The implication is a sharpdecline in global trade, which has plunged partly because oil- producing nationscan’ t afford to import as much as they used to.Sara Johnson acknowledges that the global economic benefit from a fall in oilprices today is likely lower than it was in the past. One reason is that more countries are big oil producers now, so the nations suffering from the prices drop accountfor a larger share of the global economy.Consumers, in the U.S. at least, are acting cautiously with the savings they’re getting at the gas pump, as the memory of the recent great recession is stillfresh in their mind. And a number of oil-producing countries are trimming theirgasoline subsidies and raising taxes, so the net savings for global consumers isnot as big as the oil price plunge might suggest.51.What does the author mainly discuss in the passage?A)The reasons behind the plunge of oil prices.B)Possible ways to stimulate the global economy.C)The impact of cheap oil on global economic growth.D)The effect of falling oil prices on consumer spending.【答案】 C52.Why do some experts believe cheap oil will stimulate the global economy?A)Manufacturers can produce consumer goods at a much lower cost.B)Lower oil prices have always given a big boost to the global economy.C)Oil prices may rise or fall but economic laws are not subject to change.D)Consumers will spend their savings from cheap oil on other commodities.【答案】 D53.What happens in many oil-exporting countries when oil prices go down?A)They suspend import of necessities from overseas.B)They reduce production drastically to boost oil prices.C)They use their money reserves to back up consumption.D)They try to stop their economy from going into free-fall.【答案】 C54.How does Carl Weinberg view the current oil price plunge?A)It is one that has seen no parallel in economic history.B)Its negative effects more than cancel out its positive effects.C)It still has a chance to give rise to a boom in the global economy.D)Its effects on the global economy go against existing economic laws.【答案】 B55.Why haven’t falling oil prices boosted the global economy as they did before?A)People are not spending all the money they save on gas.B)The global economy is likely to undergo another recession.C)Oil importers account for a larger portion of the global economy.D)People the world over are afraid of a further plunge in oil prices.【答案】 APart IV Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passagefrom Chinese into English. You should write your answer on Answer Sheet 2.在中国文化中，红色通常象征着好运、长寿和幸福。
精品2016年12月大学英语四级考试模拟试卷及答案(19)
2016年12月大学英语四级考试模拟试卷及答案(19)Part Ⅱ Reading Comprehension (35 minutes)Directions: There are 4 passages in this part. 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 the Answer Sheet with a single line through the centre.Questions 21 to 25 are based on the following passage:Every year 100 million holiday―makers are drawn to the Mediterranean.With onethird of the world's tourist trade, it is the most popular of all the holiday destinations; it is also the most polluted.It has only 1 per cent of the world's sea surface, but carries more than half the oil and tar floating on the waters. Thousands of factories pour their poison into the Mediterranean, and almost every city, townand village on the coast sends its sewage, untreated, into the sea.The result is that the Mediterranean, which nurtured so many civilizations, is gravely ill―the first of the seas to fall victim to the abilities and attitudes that evolved around it. And the pollution does not merely keep back life of the sea―it threatens the people who inhabit and visit its shores.The mournful form of disease is caused by sewage. Eightyfive per centof the waste from the Mediterranean's 120 coastal cities is pushed out into the waters where their people and visitors bathe and fish. What is more, most cities just drop it in straight off the beach; rare indeed are the placeslike Cannes and Tel Aviv which pipe it even half a mile offshore.Not surprisingly, vast areas of the shallows are awash with bacteria and it doesn't take long for these to reach people. Professor William Brumfitt of the Royal Free Hospital once calculated that anyone who goes for a swim in the Mediterranean has a one in seven chance of getting some sort of disease. Other scientists say this is an overestimate; but almost all of them agree that bathers are at risk.Industry adds its own poisons. Factories cluster round the coastline, and even the most modern rarely has proper wastetreatment plant. They do as much damage to the sea as sewage.But the good news is that the countries of the Mediterranean have been coming together to work out how to save their common sea.21. The causes of the Mediterranean's pollution is ____.A) the oil and tar floating on the waterB) many factories put their poison into the seaC) untreated sewage from the factories and coastal citiesD) there are some sorts of diseases in the sea22. Which of following consequence of a polluted sea is not true according to the passage?A) Bring up so many civilizations.B) Various diseases in the sea.C) It threatens the inhabitants and travelers.D) One in seven chance of getting some sort of disease swimming in the sea.23. The word “sewage”refer to ____.A) poisonC) liquid materialB) wasteD) solid material24. Why does industry do much damage to the sea?A) Because most factories have proper wastetreatment plants.B) Because many factories have not proper wastetreatment plants even the most modern one.C) Because just the modern factory has a waste treatment plant.D) Because neither ordinary factories nor most modern ones have proper wastetreatment plants.25. What is the passage mainly about?A) Save the world.B) How the people live in the Mediterranean sea.C) How the industry dangers the sea.D) Beware the dirty sea.Questions 26 to 30 are based on the following passage:THE CLASSROOM is a man's world, where boys get twothirds of the teachers' attention ― even when they are in a minority― taunt (辱骂) the girls without punishment, and receive praise for sloppy work that would not be tolerated from girls. They are accustomed to being teachers' pets, and if girls get anything like equal treatment, they will protest eagerly and even wreck lessons.These claims are made in a book out this week, written by Dale Spender, a lecturer at the London University Institute of Education. She argues that discrimination against girls is so deeply in coeducational schools that single sex classes are the only answer.Her case is based on taperecordings of her own and other teachers' lessons. Many of them, like Spender, had deliberately set out to give girls a fair chance. “Sometimes,” says Spender, “I have even thought I have gone too far and have spent more time with the girls than the boys.”The tapes proved otherwise. In 10 taped lessons (in secondary school and college), Spender never gave the girls more than 42 per cent of her attention (the average was 38 percent) and never gave the boys less than 58 percent. There were similar results for other teachers, both male and female.In other words, when teachers give girls more than a third of their time, they feel that they are cheating the boys of their rightful share. And so do the boys themselves. “She always asks the girls all the questions,” said one boy in a classroom where 34 per cent of the teachers' time was allocated to girls. “She doesn't like boy s, and just listens to the girls.” said a boy in another class, where his sex got 63 per cent of teacher attention.Boys regarded twothirds of the teacher's time as a fair deal ― and when they got less they caused trouble in class and even complained to higher authority. “It's important to keep their attention,” said one teacher, “Otherwise,they play you up something awful.”Spender concludes that, in mixed classes, if the girls are as boisterous and pushy as the boys, they are considered “unladylike”, if they are docile and quiet, they are ignored.26. If boys are better treated in class, ____ would be better.A) singlesex classes and coeducational classesB) coeducational classesC) singlesex classesD) None of the above27. Dale Spender obtained the evidence for her claims by ____.A) her own lessons in secondary school and collegeB) the other teachers' taperecordingsC) both male and female teachersD) taperecordings of her own and other teachers' lessons28. What are the boy's reactions when girls are given more attention?A) They will keep the teachers' attention again.B) They will make some trouble and complain to the headmaster.C) They will play up the teacher something awful.D) They will feel they are cheated by teachers.29. The word “boisterous” in the last paragraph probably means ____.A) rough B) braveC)troublesome D) emotional30. The best title for this passage would be ____.A) boys are teachers' petsB) boys do better in coeducational classesC) singlesex classes are better than coeduationed classesD) girls do better than boys答案Part Ⅱ1短文大意本文讲的是地中海的污染原因及结果。
2016年12月大学英语四级真题及完整答案(共两卷)(20200629082958)
2016年 12月大学英语四级真题（第一套）Part I Writing (30minutes)Directions: For this part, you are allowed 30 minutes to write an essay. Suppose youhave two options upon graduation: one is to take a job in a company and the other togo to a graduate school. You are to make a choice between the two. Write an essay toexplain the reasons for your choice. You should write at least 120 words but no morethan 180 words.Part II Listening Comprehension (25 minutes)Section ADirections: In this section, you will hear three news reports. At the end of each newsreport, you will hear two or three questions. Both the news report and the questions willbe spoken only once. After you hear a question, you must choose the best answerfrom the four choices marked A), B), C) and D). Then mark the corresponding letter onAnswer Sheet 1with a single line through the centre.Questions 1and 2 are based on the news report you have just the heard.C) A forest fire. D) A Terrorist attack.Questions 3and 4 are based on the news report you have just heard. 3. A) They lost contact with the emergency department.B) They were injured by suddenly falling rocks.C) They sent calls for help via a portable radio.D) They were trapped in an underground elevator.4. A) They provided the miner with food and water.1. A) It was going to be renovated.B) He could no longer pay the rent.C) It was dangerous to live in. D) He had sold it to the royal family.2. A) A storm.B) A strike.B) They sent supplies to keep the miners warm.C) They released the details of the accident.D) They tried hard to repair the accident.Question5 to7 are based on the news report you have just hea . rdC) Close some of its post offices. D) Redesign delivery routes.C) Computerizing mail sorting processes. D) Stopping maildelivery on Saturdays.7. A )A lot of controversy will ariseB) Taxpayers will be very pleasedC) Many people will begin to complainD) Many post office staff will lose their jobsSection BDirections:In this section,you will hear two long conversations.At the end of eachconversation,you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from four choice marked A),B),C) and D).Then mark the corresponding letter an Answer sheet1with a single line though the centre.Question8 to 11 are based on the conversation you have just heard.8. A)He will lose part of his pay. C)He will be given a warning.B) He will go through retraining. D)He is go good terms with his workmates.9. A)He is an experienced press operator. C)He is always on time.B) He is trustworthy guy. D )He is go good terms with hisworkmates.10. A)She is a trade union representative. C)She is better at handing such matters.B) She is a senior manager of the shop. D)She is in charge of public relation.11. A)He is always trying to stir up trouble.B) He is skilled and experienced.C) He is very close to the manager.D) He is always complaining about low wages.Question12 to 15 are based on the conversation you have just heard.5. A) Raise postage rates.B) Improve its services. 6. A) Closing offices on holidays. B) Shortening business hours. 12. A)Open. B)Reserved. C)Selfish. D)Friendly.13. A)They read a book. C)They stay quiet.B) They talk about the weather D)They chat with fellow passengers.14. A)She was unwilling to make friends with workmates.B) She was never invited to a colleague ' s home.C) She was eager to visit an English castle.D) She was always treated as a foreigner.15. A) House are much more quiet. C) They want a garden of their own.B) They want to have more space. D) Houses provide more privacy.Section CDirections:In this section,you will hear three passages.At the end of each passage,you will hear three or four questions.Both the passage and the questions will be spoken only once.After you hear a question,you must choose the best answer from the four choices marked A),B),C) and D).Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16. A) They will automatically be given hiring priority.B) They don ' t have to go through job interviews.C) They are likely to get much higher pay.D) They don ' t have much choice of jobs.17. A) Visit the school careers services. C) Look at school bulletin boards.B) Ask their professors for help. D) Go through campus newspapers.18. A) Providing students with information about the library.B) Helping students arrange appointments with librarians.C) Supervising study spaces to ensure a quiet atmosphere.D) Helping students find the books and journals they need.Questions 19 to 21 are based on the passage you have just heard.19. A) It tastes better. C) It is easier to grow.B) It may be sold at a higher price. D) It can better survive extreme weathers.20. A) It can grow in drier soil. C) It will replace green tea one day.B) It is immune to various diseases. D) It is healthier than green tea.21. A) It does not have a stable market.B) It has made tea farmers ' life easier.C) It does not bring the promised health benefits.D) It has been well received by many tea drinkers.Questions 22 to 25 are based on the passage you have just heard.22. A) They care more about environment.B) They decorate their homes themselves.C) They prefer unique objects of high quality.D) They need decorations to show their status.23. A) They made great contributions to society.B) They could only try to create at night.C) They were proud of their creations.D) They focused on the quality of their products.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 2with a single line through the centre. You may not use any of the words in the bank more than once.Many men and women have long bought into the idea thatthere are “ male ” and“ female ” brains, believing that explains just about every differebnectweeen the sexes. A new stud (y 26)that belief, questioning whether brains really can be distinguished by gender.In the study, Tel Aviv University researchers (27)for sex differences the entire human brain.And what did they find? Not much. Rather than offer evidenee for( 28) brains as“ male ” or “ female, ” research shows that brains fall in to a wide ran ge, with most people falli ng right in the middle.Daph na Joel, who led the study, said her research found that while there aresome gender-base (29) , many different types of brain can' t always be distinguishedby gen der.While the “average ” male and “average ” female bfOiO S wefi e rent, you could n ' t tell it bydxk 24. A) Identify fake crafts.B) Make wise choices.25. A) To attract foreign investments.B) To preserve the traditional culture.C) Design handicrafts themselves. D) Learn the importance of creation. C) To arouse public interest in crafts. D) To boost the local economy.ing at in dividual brain sca ns. Only a small (31) of people had“ a-male” or -feallale ” characteristics.Larry Cahill, an American neuroscientist (神经科学家),said the study is animporta nt additi on to a grow ing body of research questi oning( 32) beliefs about gen der and brain fun cti on. But he cauti oned aga in st con clud ing from this study that all brains are the same,( 33) of gender.“ There' s a moun tai n of evide((34) the importa nee of sex in flue nces at alllevels of brain fun ctio n, ” he told The Seattle Times.If anything, he said, the stud(35) that gender plays a very important role in the brain “ eve n whe n we are not clear exactly how. ”Directi ons: In this secti on, you are going to read a passage with ten stateme nts 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 tha n on ce. Each paragraph is marked with a letter. An swer the questi ons by marki ng the corresp onding letter on Answer Sheet 2Can Burglars Jam Your Wireless Security System?[A] Any product that promises to protect your home deserves careful examination. So it isn' t surprising that you ' ll find plenty of strong opinions about the potential vulnerabilities of popular home-security systems.[B] T he most likely type of burglary （入室盗窃） by far is the unsophisticated crime of opportunity, usually involving a broken window or some forced entry. According to the FBI, crimes like these accounted roughly two-thirds of all household burglaries in the US in 2013.The wide majority of the rest were illegal, unforced entries that resulted from something like a window being left open. The odds of a criminal using technical means to bypass a security system are so small that the FBI doesn' t even track those statistics.[C] One of the main theoretical home-security concerns is whether or not a given system is vulnerable to being blocked from working altogether. With wired setups, the fear is that a burglar （入室盗贼） might be able to shut your system down simply by cutting the right cable. With a wireless setup, you stick battery-powered sensors up around your home that keep an eye on windows, doors, motion, and more. If they detect something wrong while the system is armed, they ' ll transmit a wireless alert signal to a base station that will then raise the alarm. That approach will eliminate most cord-cutting concerns—but what about their wireless equivalent, jamming? With the right device tuned to the right frequency, what ' s to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?[D] Jamming concerns are nothing new, and they 'nirqeuneottousecuritysystems. Any device that ' s built to receive a wireless signal at a specific frequencycan be overwhelmed by a stronger signal coming in on the same frequency. For comparison, let ' s say you wanted to “jam” a conversation betweeanll two people —you'd need to do is yell in the listener ' s ear.[E] Security devices are required to list the frequencies they broadcast o—nthat means that a potential thief can find what they need to know with minimal Googling. They will, however, need so know what system they ' re looking for. If you have a sign in your yard declaring what setup you use, that ' d point them in the right direction,though at that point, we ' re talking about a highly targe-steodp,hsisetmicai ted attack,and not the sort forced-entry attack that makes up the majority of burglaries. It ' seasier to find and acquire jamming equipment for some frequencies than it is for others.[F] Wireless security providers will often take steps to help combat the threat of jamming attacks.SimpliSafe,winner of our Editor ' s Choice distinction, utilizes aspecial system that ' s capable of separating incidental RF interference from targetedjamming attacks. When the system thinks it ' s being jammed, it ' ll notify you via push alert（推送警报）.From there, it tOyo u pto sound the alarm manu ally.[G] SimpliSafe was singled out in one recent article on jamming, complete witha video showing the entire system being effectively bypassed with handheld jamming equipment. After taking appropriate measures to contain the RF interference to our test lab, we tested the attack out for ourselves, and were able to verify that it possible with the right equipment. However, we also verified that SimpliSafe 's anti-jamming system works. It caught us in the act, sent an alert to my smartphone, and also listed our RF interference on the system 's event log. The team behind the article and video in question make no mention of the system, or whether or not in detected them.[H] We like the unique nature of that software. It means that a thief likely wouldn 't be able to Google how the system works, then figure out a way around it. Even if they could, SimpliSafe claims that its system is always evolving, and that it varies slightly from system to system, which means there wouldn a universal 't be magic formula for cracking it. Other systems also seem confident on the subject of jamming. The team at Frontpoint addresses the issue in a blog on its site, citing theirown jam protection software and claiming that there aren ' tc a sneysd o fcumented successful jam attack since the company began offering wireless security sensors in the 1980s.[I] Jamming attacks are absolutely possible. As said before, with the right equipment and the right know-how, it 's possible to jam any wireless mtraisnssion. But how probable is it that someone will successfully jam their way into your home and steal your stuff?[J] Let 's imagine that you live in a small home with a wireless security setup thatoffers a functional anti-jamming system. First, a thief is going to need to target your home, specifically. Then, he 's going to need to know the technical details of yoursystem and acquire the specific equipment necessary for jamming your specific setup. Presumably, you keep your doors locked at night and wheil you 're away. So the thief will still need to break in. That means defeating the lock somehow, or breaking a window. He 'll need to be jamming you at this point, as a broken window or openeddoor would normally release the alarm. So, too, would the motion detectors in your home, so the thief will need to continue jamming once he ' s inside and searching for things to steal. However, he ' ll need to do so without trippin-jgamthme ianngtisystem,the details of which he almost certainly does now have access to.[K] A t the end of the day, these kinds of systems are primarily designed to protect against the sort of opportunistic smash-and-grab attack that makes up the majority of burglaries. They 're also only a single layer in what should ideally be -asimdeadny approach to securing your home, one that includes common sense things like sound locks and proper exterior lighting at night. No system is impenetrable, and none can promise to eliminate the worst case completely. Every one of them has vulnerabilities that a knowledgeable thief could theoretically exploit. A good system is one that keeps that worst-case setting as improbable as possible while also offering strong protection in the event of a less-extraordinary attack.36. It is possible for burglars to make jamming attacks with the necessary equipment and skill.37. Interfering with a wireless security system is similar to interfering with a conversation.38. A burglar has to continuously jam the wireless security device to avoid triggeringthe alarm, both inside and outside the house.39. SimpliSafe provides devices that are able to distinguish incidental radio interference from targetedjamming attacks.40. Only a very small proportion of burglaries are committed by technical means.41. It is difficult to crack SimpliSafe as its system keeps changing.42. Wireless devices will transmit signals so as to activate the alarm once something wrong isdetected.43. Different measures should be taken to protect one ' s home from burglary inaddition to the wireless security system.44. SimpliSafe ' s device can send a warning to the house owner ' s cellphone.45. Burglars can easily get a security device ' s frequency by Internet search.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 markedA) ,B),C) and D).You should decide on the best choice and mark the corresponding letter on Answer Sheet 2with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.As a person who writes about food and drink for a living. I couldn first thing about Bill Perry or whether the beers he sells are that great. But I can tell servers an actual living wage.I hate tipping.I hate it because it ' s an obligation disguised as an option. I hate it for thepost-dinner math it requires of me. But mostly, I hate tipping because I believe I would be in a better place if pay decisions regarding employees were simply left up to their employers, as is the custom in virtually every other industry.Most of you probably think that you hate tipping, too. Research suggests otherwise. You actually love tipping! You like to feel that you have a voice in how much money your server makes. No matter how the math works out, you persistently view restaurants with voluntary tipping systems as being a better value, which makes it extremely difficult for restaurants and bars to do away with the tipping system.One argument that you tend to hear a lot from the pro-tipping crowd seems logical enough: the service is better when waiters depend on tips, presumably because they see a benefit to successfully veiling their contempt for you. Well, if this were true, we would all be slipping a few 100-dollar bills to our doctors on the way out their doors, too. But as it turns out, waiters see only a tiny bump in tips when they do an exceptional job compared to a passable one. Waiters, keen observers of humanity that they are, are catching on to this; in one poll, a full 30% said they didn' t believthey did had any impact on the tips they received.So come on, folks: get on board with ditching the outdated tip system. Pay a little more upfront for your beer or burger. Support Bill Perry' s pub, and any other bar or restaurant that doesn ' t ask you to do drunken math. 46. What can we learn about Bill Perry from the passage?A) He runs a pub that serves excellent beer. t tell you theyou that I like this guy. That use 'B) He intends to get rid of the tipping practice.C) He gives his staff a considerable sum for tips.D) He lives comfortably without getting any tips.47. What is the main reason why the author hates tipping?A) It sets a bad example for other industries.B) It adds to the burden of ordinary customers.C) It forces the customer to compensate the waiter.D) It poses a great challenge for customers to do math.48. Why do many people love tipping according to the author?A) They help improve the quality of the restaurants they dine in.B) They believe waiters deserve such rewards for good service.C) They want to preserve a wonderful tradition of the industry.D) They can have some say in how much their servers earn.49. What have some waiters come to realize according to a survey?A) Service quality has little effect on tip size.B) It is in human mature to try to save on tips.C) Tips make it more difficult to please customers.D) Tips benefit the boss rather that the employees.50. What does the author argue for in the passage?A) Restaurants should calculate the tips for customers.B) Customers should pay more tips to help improve service.C) Waiters deserve better than just relying on tips for a living.D) Waiters should be paid by employers instead of customers. Passage TwoQuestions 51 to 55 are based on the following passage.In the past, falling oil prices have given a boost to the world economy, but recent forecasts for global growth have been toned down, even as oil prices sink lower and lower. Does that mean the link between lower oil prices and growth has weakened?Some experts say there are still good reasons to believe cheap oil should heat up the world economy. Consumers have more money in their pockets when thye' re paying less at the pump. They spend that money on other things, which stimulates the economy.The biggest gains go to countries that import most of their oil like China, Japan, and India, But doesn 't the extra money in the pockets of those cocuo n tsriuems ers 'mean an equal loss in oil producing countries, cancelling out the gains? Not necessarily, says economic researcher Sara Johnson. “ Many oil producers built up huge reserve funds when prices were high, so when prices fall they will draw on their reserves to support gover nment spe nding and subsidies 占)for their con sumers. ”But not all oil producers have big reserves, In Venezuela, collapsing oil prices have sent its economy into free-fall.Economist Carl Weinberg believes the negative effects of plunging oil prices are overwhelming the positive effects of cheaper oil. The implication is a sharp decline in global trade, which has plunged partly because oilp-roducing nations can 't afford toimport as much as they used to.Sara Johnson acknowledges that the global economic benefit from a fall in oil prices today is likely lower than it was in the past. One reason is that more countries are big oil producers now, so the nations suffering from the price drop account for a larger share of the global economy.Consumers, in the U.S. at least, are acting cautiously with the savings they getting at the gas pump, as the memory of the recent great recession is still fresh in their mind. And a number of oil-producing countries are trimming their gasolinesubsidies and raising taxes, so the net savings for global consumers is not as big as the oil price plunge might suggest.51. What does the author mainly discuss in the passage?A) The reasons behind the plunge of oil prices.B) Possible ways to stimulate the global economy.C) The impact of cheap oil on global economic growth.D) The effect of falling oil prices on consumer spending.52. Why do some experts believe cheap oil will stimulate the global economy?A) Manufacturers can produce consumer goods at a much lower cost.B) Lower oil prices have always given a big boost to the global economy.C) Oil prices may rise or fall but economic laws are not subject to change.D) Consumers will spend their saving from cheap oil on other commodities.53. What happens in many oil-exporting countries when oil prices go down?A) They suspend import of necessities from overseas.B) They reduce production drastically to boost oil prices.C) They use their money reserves to back up consumption.D) They try to stop their economy from going into free-fall.54. How does Carl Weinberg view the current oil price plunge?A) It is one that has seen no parallel in economic history.B) Its negative effects more than cancel out its positive effects.C) It still has a chance to give rise to a boom in the global economy.D) Its effects on the global economy go against existing economic laws.55. Why haven ' t falling oil prices boosted the global economy as they did before?A) People are not spending all the money they save on gas.B) The global economy is likely to undergo another recession.C) Oil importers account for a larger portion of the global economy.D) People the world over are afraid of a further plunge in oil prices.Part IV Translation (30minutes)Directions: For this part,you are allowed 30minutes to transtate a passage from Chinese into English.You should write your answer on Answer Sheet 2.在中国文化中，红色通常象征着好运、长寿和幸福，在春节和其他喜庆场合，红色到处可见。
2016年12月大学英语四级考试真题及答案
2016年12月大学英语四级考试真题（第一套）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. Suppose you have two options upon graduation: one is to take a job in a company and the other to go to a graduate school. You are to make a choice between the two. Write an essay to explain the reasons for your choice. You should write at least 120 words but nomore than 180 words.Much controversy has been aroused about whether the students should find a job or start their own business after graduation. Taking a look around, we can find that some graduates bustle around job markets, while others choose to run a shop on TMall. However, I prefer the former choice.From my perspective, there are good reasons to find a job in the first severalyears after their graduation. First and foremost, if a graduate intends to accumulate working experience and learn from the seniors, it is advisable for him to find ajob. It is an undeniable fact that the theoretical knowledge will provide thegraduates with the ability to consider things comprehensively, however, only under the integration with practice can the rigid knowledge be useful for their futuredevelopment. Inevitably, doing something small is the premise of undertakingsomething great. Take Jack Ma, the founder of Alibaba and taobao, for example. Healso finds some jobs before establishing his own career, laying a solid foundation for his later success.Consequently, it is of great necessity to find a job after graduation. I firmly believe that it will continue to bring about more returns to our life and future.Part II Listening Comprehension (25 minutes)Section A- Directions: In this section, you will hear three news reports. At the end ofeach news report, you will hear two or three questions. Both the news report andthe questions will be spoken only once. After you hear a question, you must choosethe best answer from the four choices marked A), B), C) and D). Then mark thecorresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard.1. A) It was going to be renovated.B) He could no longer pay the rent.C) It was dangerous to live in.D) He had sold it to the royal family.【答案】C2. A) A storm.B) A strike.C) A forest fire.D) A terrorist attack.【答案】AQuestions 3 and 4 are based on the news report you have just heard.3.A) They lost contact with the emergency department.B) They were injured by suddenly falling rocks.C) They sent calls for help via a portable radio.D) They were trapped in an underground elevator.【答案】D4.A) They provided the miners with food and water.B) They sent supplies to keep the miners warm.C) They released the details of the accident.D) They tried hard to repair the elevator.【答案】BQuestions 5 to 7 are based on the news report you have just heard.5.A) Raise postage rates.-C) Close some of its post offices.D) Redesign delivery routes.【答案】C6.A) Closing offices on holidays.B) Shortening business hours.C) Computerizing mail sorting processes.D) Stopping mail delivery on Saturdays.【答案】D7.A) A lot of controversy will arise.B)Taxpayers will be very pleased.C) Many people will begin to complain.D) Many post office staff will lose their jobs.【答案】DSection BDirections: In this section, you will hear two long conversations. At the endof each conversation, you will hear four questions. Both the conversation and thequestions will be spoken only once. After you hear a question, you must choose thebest answer from the four choices marked A), B)y C) and D). Then mark thecorresponding letter on Answer Sheet 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8.A) He will lose part of his pay.B) He will go through retraining.C) He will be given a warning.D) He will be kept from promotion.【答案】A9.A) He is an experienced press operator.B) He is a trustworthy guy.C) He is always on time.D) He is on good terms with his workmates.-10.A) She is a trade union representative.B) She is a senior manager of the shop.C) She is better at handling such matters.D) She is in charge of public relations.【答案】C11.A) He is always trying to stir up trouble.B) He is skilled and experienced.C) He is very close to the manager.D) He is always complaining about low wages.【答案】AQuestions 12 to 15 are based on the conversation you have just heard.12.A) Open.B) Reserved.C) Selfish.D) Friendly.【答案】B13.A) They read a book.B) They talk about the weather.C) They stay quiet.D) They chat with fellow passengers.【答案】C14.A) She was unwilling to make friends with workmates.B) She was never invited to a colleague’s home.C) She was eager to visit an English castle.D) She was always treated as a foreigner.【答案】B15.A) Houses are much more quiet.B) They want to have more space.C) They want a garden of their own.-【答案】DSection CDirections: In this section, you will hear three passages. At the end of eachpassage, 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 letteron Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16.A) They will automatically be given hiring priority.B) They don’t have to go through job interviews.C) They are likely to get much higher pay.D) They don’t have much choice of jobs.【答案】A17.A) Visit the school careers service.B) Ask their professors for help.C) Look at school bulletin boards.D) Go through campus newspapers.【答案】A18. A) Providing students with information about the library.B)Helping students arrange appointments with librarians.C)Supervising study spaces to ensure a quiet atmosphere.D)Helping students find the books and journals they need.【答案】CQuestions 19 to 21 are based on the passage you have just heard.19.A) It tastes better.B) It may be sold at a higher price.C) It is easier to grow.D) It can better survive extreme weathers.【答案】B-B) It is immune to various diseases.C) It will replace green tea one day.D) It is healthier than green tea.【答案】D21. A) It does not have a stable market.B) It has made tea farmers’ life easier.C) It does not bring the promised health benefits.D) It has been well received by many tea drinkers.【答案】AQuestions 22 to 25 are based on the passage you have just heard.22.A) They care more about environment.B)They decorate their homes themselves.C) They prefer unique objects of high quality.D) They need decorations to show their status.【答案】C23. A) They made great contributions to society.B) They could only try to create at night.C)They were proud of their creations.D)They focused on the quality of their products.【答案】B24.A) Identify fake crafts.B)Make wise choices.C)To arouse public interest in crafts.D)To boost the local economy.【答案】B25.A) To attract foreign investments.B)To preserve the traditional culture.C)Design handicrafts themselves.D)Learn the importance of creation.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. Eachchoice in the bank is identified by a letter. Please mark the corresponding letterfor each item on Answer Sheet 2 with a single line through the centre. You may notuse any of the words in the bank more than once.Many men and women have long bought into the idea that there are “male” and “female” brains, believing that explains just about every difference between the sexes. A new study __26__ that belief, questioning whether brains really can bedistinguished by gender.In the study, Tel Aviv University researchers __27__ for sex differencesthroughout the entire human brain.27._____A) abnormalB) appliedC) brieflyD) categorizingE) challengesF) figureG) percentageH) provingI) regardlessJ) searchedK) similaritiesL) slightlyM) suggestsN) tastesAnd what did they find? Not much. Rather than offer evidence for __28__ brains as “male” or “female,” research shows that brains fall into a wide range, with most people falling right in the middle.28._____A) abnormalB) appliedC) brieflyD) categorizingE) challengesF) figureG) percentageH) provingI) regardlessJ) searchedK) similaritiesL) slightlyM) suggestsN) tastesO) traditionalDaphna Joel, who led the study, said her research found that while there aresome gender-based —__29__ , many different types of brain can’t always be distinguished by gender.29._____A) abnormalB) appliedC) brieflyD) categorizingE) challengesF) figureH) provingI) regardlessJ) searchedK) similaritiesL) slightlyM) suggestsN) tastesO) traditionalWhile the “average” male and “average” female brains were __30__ different, you couldn’t tell it by looking at individual brain scans. Only a small __31__ ofpeople had “all-male” or “all-female” characteristics.30._____31._____A) abnormalB) appliedC) brieflyD) categorizingE) challengesF) figureG) percentageH) provingI) regardlessJ) searchedK) similaritiesL) slightlyM) suggestsN) tastesO) traditionalLarry Cahill, an American neuroscientist (神经科学家), said the study is an- gender and brain function. But he cautioned against concluding from this study that all brains are the same, __33__ of gender.32._____33._____A) abnormalB) appliedC) brieflyD) categorizingE) challengesF) figureG) percentageH) provingI) regardlessJ) searchedK) similaritiesL) slightlyM) suggestsN) tastesO) traditional“There’s a mountain of evidence __34__ the importance of sex influences atall levels of brain function, M he told The Seattle Times.34._____A) abnormalB) appliedC) brieflyD) categorizingE) challengesF) figureG) percentageI) regardlessJ) searchedK) similaritiesL) slightlyM) suggestsN) tastesO) traditionalIf anything, he said, the study __35__ that gender plays a very important role in the brain—“even when we are not clear exactly how.”35._____A) abnormalB) appliedC) brieflyD) categorizingE) challengesF) figureG) percentageH) provingI) regardlessJ) searchedK) similaritiesL) slightlyM) suggestsN) tastesO) traditionalSection 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 aparagraph more than once. Each paragraph is marked with a letter. Answer thequestions by marking the corresponding letter on Answer Sheet 2.Can Burglars Jam Your Wireless Security System?A)Any product that promises to protect your home d eserves careful examination. So it isn't surprising that you’ll find plenty of strong opinions about the potential vulnerabilities of popular home-security systems.B)The most likely type of burglary(入室盗窃)by far is the unsophisticated crime of opportunity, usually involving a broken window or some forced entry. Accordingto the FBI, crimes like these accounted for roughly two-thirds of all householdburglaries in the US in 2013. The wide majority of the rest were illegal, unforcedentries that resulted from something like a window being left open. The odds ofcriminal using technical means to bypass a security system are so small that theFBI doesn’t even track those statistics.C)One of the main theoretical home-security concerns is whether or not a given system is vulnerable to being blocked from working altogether. With wired setups,the fear is that a burglar(入室盗贼)might be able to shut your system down simplyby cutting the right cable. With a wireless setup, you stick battery-powered sensors up around your home that keep an eye on windows, doors, motion, and more. If theydetect something wrong while the system is armed, they’ll transmit a wireless alert signal to a base station that will then raise the alarm. That approach will eliminate most cord-cutting concerns—but what about their wireless equivalent, jamming? With the right device tuned to the right frequency, what’s to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?D)Jamming concerns are nothing new, and they’re not unique to security systems. Any device that’s built to receive a wireless signal at a specific frequency canbe overwhelmed by a stronger signal coming in on the same frequency. For comparison, let’s say you wanted to “jam” a conversation between two people—all you’d need to do is yell in the listener’s ear.E)Security devices are required to list the frequencies they broadcast on—that means that a potential thief can find what they need to know with minimalGoogling. They will, however, need to know what system they’re looking for. If you have a sign in your yard declaring what setup you use, that’d point them in theright direction, though at that point, we’re talking about a highly targeted,semi-sophisticated attack, and not the sort of forced-entry attack that makes upthe majority of burglaries. It’s easier to find and acquire jamming equipment for some frequencies than it is for others.F)Wireless security providers will often take steps to help combat the threat of jamming attacks. SimpliSafe, winner of our Editors’ Choice distinction, utilizesa special system that’s capable of separating incidental RF interference fromtargeted jamming attacks. When the system thinks it’s being jammed, it’ll notify you via push alert (推送警报). From there, it’s up to you to sound the alarm manually.G)SimpliSafe was singled out in one recent article on jamming, complete witha video showing the entire system being effectively bypassed with handheld jamming equipment. After taking appropriate measure to contain the RF interference to ourtest lab, we tested the attack out for ourselves, and were able to verify that itis possible with the right equipment. However, we also verified that SimpliSafe’s anti-jamming system works. It caught us in the act, sent an alert to my smartphone, and also listed our RF interference on the system’s event log. The team behind the article and video in question make no mention of the system, or whether or not itdetected them.H) We like the unique nature of that software. It means that a thief likelywouldn’t be able to Google how the system works, then figure out a way around itEven if they could, SimpliSafe claims that its system is always evolving, and thatit varies slightly from system to system, which means there wouldn’t be a universal magic formula for cracking it Other systems also seem confident on the subject ofjamming. The team at Frontpoint addresses the issue in a blog on its site, citingtheir own jam protection software and claiming that there aren’t any documented cases of a successful jam attack since the company began offering wireless security sensors in the 1980s.I)Jamming attacks are absolutely possible. As said before, with the rightequipment and the right know-how, it’s possible to jam any wireless transmission. But how probable is it that someone will successfully jam their way into your homeand steal your stuff?J) Let’s imagine that you live in a small home with a wireless security setup that offers a functional anti-jamming system. First, a thief is going to need totarget your home, specifically. Then, he’s going to need to know the technicaldetails of your system and acquire the specific equipment necessary for jamming your specific setup. Presumably, you keep your doors locked at night and while you'reaway, so the thief will still need to break in. That means defeating the lock somehow, or breaking a window. He’ll need to be jamming you at this point, as a broken window or opened door would normally release the alarm. So, too, would the motion detectors in your home, so the thief will need to continue jamming once he’s inside and searching for things to steal. However, he’ll need to do so without tripping theanti-jamming system, the details of which he almost certainly does not have access to.K) At the end of the day, these kinds of systems are primarily designed to protect against the sort of opportunistic smash-and-grab attack that makes up the majority of burglaries. They’re also only a single layer in what should ideally be a many-sided approach to securing your home, one that includes common sense things like soundlocks and proper exterior lighting at night. No system is impenetrable, and nonecan promise to eliminate the worst case completely. Every one of them hasvulnerabilities that a knowledgeable thief could theoretically exploit. A goodsystem is one that keeps that worst-case setting as improbable as possible whilealso offering strong protection in the event of a less-extraordinary attack.36.It is possible for burglars to make jamming attacks with the necessaryequipment and skill.【答案】I37.Interfering with a wireless security system is similar to interfering witha conversation.【答案】D38.A burglar has to continuously jam the wireless security device to avoidtriggering the alarm, both inside and outside the house.【答案】J39.SimpliSafe provides devices that are able to distinguish incidental radiointerference from targeted jamming attacks.【答案】F40.Only a very small proportion of burglaries are committed by technical means.【答案】B41.It is difficult to crack SimpliSafe as its system keeps changing.【答案】H42.Wireless devices will transmit signals so as to activate the alarm oncesomething wrong is detected.【答案】C43.Different measures should be taken to protect one’s home from burglary in addition to the wireless security system.【答案】K44.SimpliSafe’s device can send a warning to the house owner’s cellphone.【答案】G45.Burglars can easily get a security device’s frequency by Internet search.【答案】ESection CDirections: There are 2 passages in this section. Each passage is followed bysome questions or unfinished statements. For each of them there are four choicesmarked A), B) , C) and D). You should decide on the best choice and mark thecorresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.As a person who writes about food and drink for a living, I couldn’t tell you the first thing about Bill Perry or whether the beers he sells are that great. ButI can tell you that I like this guy. That’s because he plans to ban tipping in favor of paying his servers an actual living wage.I hate tipping.I hate it because it’s an obligation disguised as an option. I hate it forthe post-dinner math it requires of me. But mostly, I hate tipping because I believe I would be in a better place if pay decisions regarding employees were simply leftup to their employers, as is the custom in virtually every other industry.Most of you probably think that you hate tipping, too. Research suggestsotherwise. You actually love tipping! You like to feel that you have a voice in how much money your server makes. No matter how the math works out, you persistentlyview restaurants with voluntary tipping systems as being a better value, which makes it extremely difficult for restaurants and bars to do away with the tipping system.One argument that you tend to hear a lot from the pro-tipping crowd seems logical enough: the service is better when waiters depend on tips, presumably because they see a benefit to successfully veiling their contempt for you. Well, if this weretrue, we would all be slipping a few 100-dollar bills to our doctors on the way out their doors, too. But as it turns out, waiters see only a tiny bump in tips whenthey do an exceptional job compared to a passable one. Waiters, keen observers ofhumanity that they are, are catching on to this; in one poll, a full 30% said theydidn’t believe the job they did had any impact on the tips they received.So come on, folks: get on board with ditching the outdated tip system. Pay alittle more up-front for your beer or burger. Support Bill Perry’s pub, and any other bar or restaurant that doesn’t ask you to do drunken math.46.What can we learn about Bill Perry from the passage?A)He runs a pub that serves excellent beer.B)He intends to get rid of the tipping practice.C) He gives his staff a considerable sum for tips.D) He lives comfortably without getting any tips.【答案】B47.What is the main reason why the author hates tipping?-A)It sets a bad example for other industries.B)It adds to the burden of ordinary customers.C) It forces the customer to compensate the waiter.D) It poses a great challenge for customers to do math.【答案】C48.Why do many people love tipping according to the author?A)They help improve the quality of the restaurants they dine in.B)They believe waiters deserve such rewards for good service.C)They want to preserve a wonderful tradition of the industry.D)They can have some say in how much their servers earn.【答案】D49.What have some waiters come to realize according to a survey?A)Service quality has little effect on tip size.B)It is in human nature to try to save on tips.C) Tips make it more difficult to please customers.D) Tips benefit the boss rather than the employees.【答案】A50.What does the author argue for in the passage?A)Restaurants should calculate the tips for customers.B)Customers should pay more tips to help improve service.C)Waiters deserve better than just relying on tips for a living.D)Waiters should be paid by employers instead of customers.【答案】DPassage TwoQuestions 51 to 55 are based on the following passage.In the past, falling oil prices have given a boost to the world economy, butrecent forecasts for global growth have been toned down, even as oil prices sinklower and lower. Does that mean the link between lower oil prices and growth hasweakened?Some e xperts say there are still good reasons to believe cheap oil should heat up the world economy. Consumers have more money in their pockets when they’re paying less at the pump. They spend that money on other things, which stimulates the economy.The biggest gains go to countries that import most of their oil like China,Japan, and India. But doesn’t the extra money in the pockets of those countries,consumers mean an equal loss in oil-producing countries, cancelling out the gains? Not necessarily, says economic researcher Sara Johnson. “Many oil producers built up huge reserve funds when prices were high, so when prices fall they will draw ontheir reserves to support government spending and subsidies (补贴)for their consumers.”But not all oil producers have big reserves. In Venezuela, collapsing oil prices have sent its economy into free-fall.Economist Carl Weinberg believes the negative effects of plunging oil pricesare overwhelming the positive effects of cheaper oil. The implication is a sharpdecline in global trade, which has plunged partly because oil- producing nationscan’t afford to import as much as they used to.Sara Johnson acknowledges that the global economic benefit from a fall in oilprices today is likely lower than it was in the past. One reason is that more countries are big oil producers now, so the nations suffering from the prices drop accountfor a larger share of the global economy.Consumers, in the U.S. at least, are acting cautiously with the savings they’re getting at the gas pump, as the memory of the recent great recession is stillfresh in their mind. And a number of oil-producing countries are trimming theirgasoline subsidies and raising taxes, so the net savings for global consumers isnot as big as the oil price plunge might suggest.51.What does the author mainly discuss in the passage?A)The reasons behind the plunge of oil prices.B)Possible ways to stimulate the global economy.C)The impact of cheap oil on global economic growth.D)The effect of falling oil prices on consumer spending.【答案】C52.Why do some experts believe cheap oil will stimulate the global economy?A)Manufacturers can produce consumer goods at a much lower cost.B)Lower oil prices have always given a big boost to the global economy.C)Oil prices may rise or fall but economic laws are not subject to change.D)Consumers will spend their savings from cheap oil on other commodities.【答案】D53.What happens in many oil-exporting countries when oil prices go down?A)They suspend import of necessities from overseas.B)They reduce production drastically to boost oil prices.C)They use their money reserves to back up consumption.D)They try to stop their economy from going into free-fall.【答案】C54.How does Carl Weinberg view the current oil price plunge?A)It is one that has seen no parallel in economic history.B)Its negative effects more than cancel out its positive effects.C)It still has a chance to give rise to a boom in the global economy.D)Its effects on the global economy go against existing economic laws.【答案】B55.Why haven’t falling oil prices boosted the global economy as they did before?A)People are not spending all the money they save on gas.B)The global economy is likely to undergo another recession.C)Oil importers account for a larger portion of the global economy.D)People the world over are afraid of a further plunge in oil prices.【答案】APart IV Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passagefrom Chinese into English. You should write your answer on Answer Sheet 2.在中国文化中，红色通常象征着好运、长寿和幸福。
12月英语四级模拟试卷及答案（2）
12月英语四级模拟试卷及答案（2）2016年12月英语四级模拟试卷及答案Questions 16 to 20 are based on the following passage:People with disabilities comprise a large part of the population. It is estimated that over 35 million Americans have physical, mental, or other disabilities. About half of these disabilities are “developmental”, i. e. , they occur prior to the individual’s twenty-second birthday, often form genetic conditions, and are severe enough to effect three or more areas of development, such as mobility, communication, employment, etc. Most other disabilities are considered “adventitious”, i.e. , accidental or caused by outside forces.Prior to the 20th century, only a small percentage of people with disabilities survived for long. Medical treatment for these disabilities was unavailable. Advancements in medicine and social services have created a climate in which people with disabilities can expert to have such basic needs as food, shelter, and medical treatment. Unfortunately, these basic are often not available. Civil liberties such as the right to vote, marry, get an education, and again employment have historically been denied on the basic of disability.In recent decades, the disability rights movement has been organized to flight against these infringements (侵害) of civil rights. Congress responded by passing major legislation recognizing people with disabilities as protected class under civil rights statutes.Still today, people with disabilities must fight to live their lives independently. It is estimated that more than half of qualified Americans with disabilities are unemployed, and a majority ofthose who do work are underemployed. About two-thirds live at or below the official poverty level.Significant barriers, especially in transportation and public awareness, prevent disabled people from taking part in society. For example, while no longer prohibited by law from marrying, a person with no access to transportation is effectively excluded from community and social activities which might lead to the development of long-term relationships.It will only be when public attitudes advance as far as laws are that disabled people will be fully able to take to their right place in society.16. ”developmental” disability .A. develops very slowly over timeB. is caused forcesC. occurs in youth and affects developmentD. is getting more and more severe17. Most disabled people used to die early because .A. disabilities destroyed major bodily functionsB. they were not very well looked afterC. medical techniques were not availableD. they were too poor to get proper treatment18. In the author’s opinion, to enable the disabled people to take their rightful place in society, .A. more laws should be passedB. public attitudes should be changedC. government should provide more aidsD. more public facilities should be act up19. Which of the following cannot be inferred from the passage?A. Many disabled people may remain single for their whole life.B. The public tends to look down upon the disabled people.C. The disabled people feel inferior to those surrounding them.D. Discriminatory (有差别的) laws prevent the disabled from mixing with others.20. The best title for this passage might be .A. Handicaps of People with DisabilitiesB. The Difficulties of the DisabledC. The Causes for DisabilitiesD. Medical Treatments for DisabilitiesPart II Vocabulary and Structure (共40小题，每小题1分，共40分)Directions: In this part there are forty incomplete sentences. Each sentence is followed by four choices. Choose the one that best completes the sentence and then mark your answer on the Answer Sheet.21. It’s still early in the morning. There isn’t in the office.A. anyoneB. everyoneC. nobodyD. any people22. is not known what they discussed in the meeting.A. ThatB. HeC. ThisD. It23. Yhe sad news broke her and she has been gloomy ever since.A. feelingsB. emotionsC. mindD. heart24. He is much of a gentleman to fight.A. soB. asC. veryD. too25. Not until this term to realize how important this subject is to his future career as a diplomat.A. he beganB. ha has begunC. did he beginD. that ha has begun26. who would like to go on the trip should put their nameson the list.A. ThoseB. TheseC. SomebodyD. The ones27. A bottle weighs less after air is taken out, proves that air has weight.A. weB. itC. whichD. what28. How long ?A. you suppose did it lastB. do you suppose it lastedC. did you suppose it lastD. you suppose it lasted29. Smmith had some trouble the man’s accent.A. to understandB. understandingC. for understandingD. with understanding30. The next few days could be for the peace negotiation.A. maximumB. practicalC. criticalD. urgent31. He quite a lot when he was young.A. used to travelB. used to travelingC. was used to travelD. would used to travel32. You me your telephone number in case someone wants to contact you.A. had better giveB. had better givenC. had better to giveD. had better gave33. Mary used to the room with Linda.A. separateB. divideC. holdD. share34. —Must we hand in our exercise-books now?—No, you .A. mustn’tB. don’tC. needn’tD. can’t35. She pulled away from the window anyone should see them.A. lestB. even thoughC. unlessD. only if36. Not a has been found so far that can help the police find the criminal.A. factB. clueC. symbolD. sign37. She would make a teacher far superior the average.A. overB. thanC. beyondD. to38. Radio is different from television in it sends and receives pictures.A. whichB. thatC. whatD. this39. Tom and jack have returned but students of the group haven’t come back yet.A. otherB. the othersC. othersD. another40. It half a year since we to study in this university.A. is; comeB. is; have comeC. has been; cameD. has been; have come41. The fact that something is cheap doesn’t mean it is of low quality.A. necessarilyB. especiallyC. essentiallyD. practically42. They set off by car and the nearest town.A. made forB. made afterC. made outD. made to43. Take this baggage and you can find enough room.A. put it whichB. put it in whichC. put it at whereD. put it wherever44. He doesn’t want that he’s going away.A. . to be knownB. him to be knownC. that to be knownD. it to be known45. The noise around was terrible, but I had to it.A. keep away fromB. keep up withC. live withD. live on46. He that his guests were bored, although they were listening politely.A. impressedB. sensedC. inferredD. identified47. On Sundays I prefer at home to out.A. to say; goB. stay; goingC. staying; goingD. staying; go48. I’d like to write to him, but what’s the ? He never writes back.A. significanceB. businessC. pointD. purpose49. There were opinions as to the best location for the new school.A. disagreeingB. conflictingC. rejectingD. reverting50. by the news of his father’s death, he could hardly uttera word.A. To be stunnedB. StunnedC. To stunD. Stunning51. , we’d better make some changes in the plan.A. That is the caseB. That been the caseC. That to be the caseD. That being the case52. They have equipped the office with the business machines.A. lastB. latterC. latestD. later53. The police found that George had still another of income.A. originB. sourceC. basisD. means54. An open-minded teacher doesn’t always one single teaching method.A. set asideB. take overC. take onD. stick to55. Much to the student’s , the exam was postponed.A. burdenB. concernC. reliefD. requirement56. Children normally feel a lot of about their first day at school.A. anxietyB. differenceC. feelingsD. trouble57. The weather was hot that she decided to have the barber her hairstyle.A. rather; to changeB. so; changeC. much too; changeD. too; changed58. She meet her former instructor on the bus.A. delighted toB. happened toC. pleased toD. tended to59. Just as no two words are truly synonymous no two different expressions can mean exactly the same thing.A. ratherB. alsoC. yetD. so60. The new engineer’s suggestions were in the r evised plan.A. entitledB. engagedC. embodiedD. estimated下载文档。
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2016年12月大学英语四级考试模拟试卷及答案(21)Part Ⅱ Reading Comprehension (35 minutes)Directions: There are 4 passages in this part.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 the Answer Sheet with a single line through the center.Questions 21 to 25 are based on the following passage:Some radio singals were heard in 1967.They were coming from a point in the sky where there was unknown star.They were coming very regularly,too:about once a second,if they were controlled by clock.The scientists who heard the signals did not tell anybody else.They were rather afraid to tell in case they frightened people.The signals were coming from a very small body―no bigger,perhaps than the earth.Was that why no light could be seen from it?Or were the signals coming from a planet that belonged to someother star?There was no end to the questions,but the scientists kept the news secret.“Perhaps there are intelligent beings out there.”they thought,“who are trying to send messages to other planets,or to us?So the news was not given to the newspaper.Instead,the scientists studied the signals and searched for others like them...Well,all that happened in 1967 and1968.Since then scientists have learnt more about those strange,regular,radio signals.And they have told the story,of course.The signals do not come from a planet;they come from a new kind of star called a “pulsar””.About a hundred other pulsars have now been found,and most of them are very like the first one.Pulsars are strong radio stars.They are the smallest but the heaviest stars we know at present.A handful of pulsar would weigh a few thousandtons.Their light―if they give much light―is too small for us to see.But we can be sure of this,no intelligent beings are living on them.21. The radio signals discussed in thispassage____.A.were regularB.were controlled by a clock答案1短文大意1967年人类收到了一些太空信号。
这些信号来自太空中的某一恒星领域，它们极有规律，难道这是外星人向地球或我们发收的信号?为了不致在人们当中造成恐慌，科学家们一直保守着这个秘密，并且一直对它们进行研究。
如今，当然一切都真相大白。
原来这些信号都来自一种叫脉冲星的恒星，它们的密度极大连光线也难以逃逸。
但有一点可以确定，上面没有智能生命存在。
21. 答案A。
【参考译文】文中讨论到的电磁信号……【试题分析】此题考查考生“辨认事实”的能力。
【详细解答】见原文第一段，“They were coming very regularly,too.”他们同样非常有规律，与 A)项同意。
B)were controlled by a clock.由时钟控制，原文前面有一表示“似乎的”连词 if。
C)，D)根据下文判断都不正确。
22. 答案C。
【参考译文】这些电磁信号来自于……【试题分析】此题考查考生“根据已知信息进行推断”的能力。
【详细解答】见原文第三段“...they come from a new kind of star called a “pulsar””他们来自一种叫脉冲星的新型恒星。
A) a satellite卫星，B)a planet行星，D)当时未知的智能生命。
23. 答案C。
【参考译文】科学家们没有把有关电磁信号的事情告诉人们是因为……【试题分析】此题考查考生“理解文章中某些细节”的能力。
ぁ鞠晗附獯稹见原文第二段开头“ The scientists who heard the singals did not tell anybody else.They were rather afraid to tell in case they frightened people.”听到该信号的科学家未告诉别人，他们害怕这样会惊吓了老百姓。
因此选择 C。
24. 答案A。
【参考译文】脉冲星是……【试题分析】此题考查考生“辨认事实”的能力。
【详细解答】见原文第四段，实际由“star”这个单词就可排除B)，C)和D)选项。
25. 答案D。
【参考译文】以下说法，哪一个是正确的?【试题分析】此题考查考生“根据已知信息进行推理”的能力。
【详细解答】见原文第三段最后一句“About a hundred other pulsars have now been found...”因此D)项正确，其他各项均与原文意思不符。
2短文大意本文主要讨论的是沙漠扩张的问题。
人们赖以生存的降雨及植被在不断减少，地球上 40%的土地已成了沙漠或已沙漠化，1/7的人口生活在干旱地区，以及现代生活造成的一些问题使人类生存日益受到沙漠扩张的威胁。
虽然科学家还未能彻底了解沙漠问题，但是一些保护土地的措施已被采用，人们在与沙漠抗争。
26. 答案A。
【参考译文】本文主要谈论的是什么?【试题分析】此题考查考生“把握文章主旨及大意”的能力。
【详细解答】全文主要阐述了沙漠扩散带来的水源缺乏的问题，以及人们采取的措施。
A)符合该中心思想;B)，C)和D)虽在文中提到过但作为主要思想，过于片面。
27. 答案C。
【参考译文】 1/7指的是……【试题分析】此题考查考生“理解文章中某些细节”的能力。
【详细解答】见原文第一段第三句“ About 628million people -one out of seven-live in these dry regions.”大约628，000，000(约为1/7)的人住在这些干旱地区。
C)项符合所指代的内容，为正确答案。
28. 答案C。
【参考译文】在第二段中，“他们被送往南方的绿草地”，他们指的是……【试题分析】此题考查考生“理解文章中某些细节”的能力。
【详细解答】见原文最后一句“ Some Sahel farmers still raise cattle on their poor farm land,but before the cattle are sold,they are taken to greener lands in the south to get fat”一些Sahel农民在他们贫瘠的农场上仍然饲养着牛群，但在把他们卖出之前，往往要送到南方多草的土地上以增肥。
they指代前面的the cattle。
因此C为正确选项。
29. 答案D。
【参考译文】文中描述了几种保护土地的创意?【试题分析】此题考查考生“根据已知信息进行推断”的能力。
【详细解答】见原文第二段“...but there have been many ideas for saving the land.”但已有了许多保护土地的创意。
以下各句即为例证，确定其数目为 3，因此D为正确选项。
30. 答案A。
【参考译文】根据短文，以下说法，哪个是正确的?【试题分析】此题考查考生“辨认事实”的能力。
【详细解答】见原文第一段最后一句“Now largely through problems caused by modern life,their existence is threatened by the slow,steady spread of the earth's deserts.”现在由于现代生活产生的一些问题，他们生存日益受到地球沙漠逐步缓慢扩散的威胁。
因此A为正确选择。
B)中正确数目应为one out of seven,C)应是modern problems，D)文中未提及。
C.were heard in 1967 onlyD.were secret messages22. The radio singals were sent by____.A.a satelliteB.a planetC.a sky body which was unknown at that timeD.intelligent beings who were unknown at that time23. The scientists did not tell people about the signals because____.A.the singals stood for secret messagesB.people would ask them too many questionsC.they did not want to frighten peopleD.they stood for unimportant messages24. A pulsar is____.A. a small heavy star which sends out strong radio signals and cannot be seenB. a small heavy planet which sends out strong radio signals and cannot be seenC. a small heavy satellite which sends out strong radio signals and cannot be seenD. a small intelligent being who sends out strong radio signals and cannot be seen25. Which of the following is true?A.One of the pulsars found by scientists sends radio signals.B.Pulsar began to send radio singals in 1967.C.Scientists have searched for pulsars for many years but found none.D.Scientists have found many pulsars since 1967.Questions 26 to 30 are based on the following passage:Over vast areas of every continent,the rainfall and vegetation necessary for life aredisappearing.Already more than 40 percent of the earth's land is desert or desertlike.About 628 million people―one out of seven―live in these dry regions.In the past,they have managed to survive,but with difficulty.[ZZ(Z]Now largely through problemscaused by modern life,their existence is threatened by the slow,steady spread of the earth's deserts.Scientists still do not understand all the complex problems of the desert,but there have been many ideas for saving the land.Sandi Arabia has planted 10million trees to help keep the sand from taking over fertile areas.The Israelis are aga in using some of the water collection systems left by the ancient people in theNegev desert.They plan to water their orchards with the extra water.Some Sahel farmers still raise cattle on their poor farm land,but before the cattle are sold, they are taken to greener lands in the south to get fat.26. What is the article mainly concerned?A.The problem of spreading desert.B.The rainfall and vegetation in desert areas.C.The water collection systems.D.The difference between modern life and ancient life.27. “one out of seven” refers to____.A.more than a third of the lands' earthB.the percentage of the earth's land that is desert-likeC.the number of people who live in dry regionsD.a day of a week28. In paragraph 2,“they are taken to the greener lands in the south.”Theyrefers to____.A.the Sahel farm landB.the farmersC.the cattlesD.the trees29. How many ideas for saving the land are described?A.Five.B.Two.C.Four.D.Three.30. Which of the following statements is true, according to the passage?A.The earth's desert are slowly spreading.B.One out of 10 people lives in dry regions.C.Their life in the desert is threatened now by traditional problems.D.New water wells can solve the problem inAfrica's desert.。