大学英语六级-40及答案解析.doc

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1、大学英语六级-40 及答案解析(总分：710.00，做题时间：90 分钟)一、Part Writing(总题数：1，分数：106.50)1.Directions: For this part, you are allowed 30 minutes to write a letter to the airline to complain about your lost case based on the situation given below. You should write at least 150 words but no more than 200 words. Write your

2、 essay on Answer Sheet 1.You traveled by plane last week and your suitcase was lost. You have still heard nothing from the airline company. Write a letter to the airline. In your letter:Explain what happened.Describe your suitcase and what is in it.Ask what action the airline is going to take.（分数：10

3、6.50）_二、Part Listening Com(总题数：0，分数：0.00)三、Section A(总题数：4，分数：106.50)(1).A. In a grocery store. B. Over the telephone.C. At a party. D. In Marys house.（分数：7.10）A.B.C.D.(2).A. Theyre happy Marias playing it again.B. They are both very tired of it.C. The man likes to listen to it often.D. The woman ha

4、s never heard it before.（分数：7.10）A.B.C.D.(3).A. In a supermarket. B. In an advertising agency.C. At a police station. D. In a customs office.（分数：7.10）A.B.C.D.(4).A. An annoyance call. B. A crossword puzzle.C. A broken telephone. D. A musical instrument.（分数：7.10）A.B.C.D.(5).A. 30 minutes. B. 50 minut

5、es.C. 70 minutes. D. 80 minutes.（分数：7.10）A.B.C.D.(1).A. On Wednesday. B. On Thursday.C. On Friday. D. On Monday.（分数：7.10）A.B.C.D.(2).A. Hell have a weekend party at home.B. Hell come to an English party at his friends house.C. Hell go to meet someone at the airport.D. Hell make arrangements to meet

6、foreign friends.（分数：7.10）A.B.C.D.(3).A. They wont be able to set up an automobile company.B. They wont be able to come to the opening ceremony.C. They shouldnt have accepted the invitation.D. They shouldnt inform them in advance.（分数：7.10）A.B.C.D.(1).A. Shell visit a large funfair.B. Shell see circus

7、 displays.C. Shell visit a film studio.D. Shell see a technology-advanced city.（分数：7.10）A.B.C.D.(2).A. Shell be able to go aboard a spacecraft.B. Shell be able to operate the Mission Control.C. Shell be able to receive messages from satellites.D. Shell be able to learn something new about space.（分数：

8、7.10）A.B.C.D.(3).A. By working overtime to earn the money.B. By borrowing money from a bank.C. By relying on her savings.D. By accepting help from her parents.（分数：7.10）A.B.C.D.(4).A. Shes willful. B. Shes pragmatic.C. Shes extrovert. D. Shes calculating.（分数：7.10）A.B.C.D.(1).A. Housing costs. B. Aver

9、age wage.C. Unemployment. D. Oil prices.（分数：7.10）A.B.C.D.(2).A. Increasing demands for goods. B. Slight rise in consumer prices.C. Difficulty in borrowing money. D. Not mentioned.（分数：7.10）A.B.C.D.(3).A. He is optimistic about the next years market.B. He is worried about the increase in food prices.C

10、. He is not sure about the petrol prices.D. He is pleasant for the decrease in unemployment.（分数：7.10）A.B.C.D.四、Section B(总题数：0，分数：0.00)五、Passage One(总题数：1，分数：21.30)(1).A. Our natural surroundings are in danger of being destroyed by industry.B. The fixed supply of natural resources marks a point beyo

11、nd which economic growth cannot continue.C. The world population is ever increasing.D. More effects should be made to improve the quality of our material life.（分数：7.10）A.B.C.D.(2).A. The importance of the discussion on economic growth.B. The advantages and disadvantages of economic growth.C. The pre

12、sent discussion on economic growth.D. The relationship between economic growth and environment.（分数：7.10）A.B.C.D.(3).A. He describes the case as it is.B. He is for economic growth.C. He is against continued economic growth.D. He is very much worried about the problems caused by continued economic gro

13、wth.（分数：7.10）A.B.C.D.六、Passage Two(总题数：1，分数：21.30)(1).A. Human brains differ from person to person.B. The brain a person is born with is vital in determining his intelligence.C. Environment is crucial in fostering a persons intelligence.D. Persons having identical brains are doomed to have identical

14、 intelligence.（分数：7.10）A.B.C.D.(2).A. It can be built up by education.B. It stays the same throughout ones life.C. It can be predicted at birth.D. It is fully-developed during ones childhood.（分数：7.10）A.B.C.D.(3).A. To show that twins have identical IQs.B. To show that twins IQs are independent of th

15、e education they receive.C. To show how critical human brains are in determining ones intelligence.D. To show how vital environment is in fostering ones intelligence.（分数：7.10）A.B.C.D.七、Passage Three(总题数：1，分数：28.40)(1).A. The high speed and efficiency of the Internet.B. The health problems due to add

16、iction to the Internet.C. The joy and comfort provided by the Internet.D. The irresistible attraction of the Internet.（分数：7.10）A.B.C.D.(2).A. The impact of the Internet on our health.B. The damages caused to a web-addict.C. The increased computer use.D. The vast information on the Internet.（分数：7.10）

17、A.B.C.D.(3).A. An unhealthy diet. B. Irregular periods of sleep.C. Sitting too long surfing the Internet. D. Using good monitors.（分数：7.10）A.B.C.D.(4).A. It is unnoticeable. B. It is inevitable.C. It is harmful. D. It is irresistible.（分数：7.10）A.B.C.D.八、Section C(总题数：1，分数：71.00)In the United States, i

18、t is required that all children attend school, public or private, for twelve years. There are (26) this rule, of course, as in the case of certain religious or (27) groups where education is only required until the eighth grade. And there are some groups of people that see no purpose to an education

19、 (28) and ignore this requirement altogether. But for most, and reasonably so, a twelve-year education is the minimum. In view of the (29) of our society and the changes taking place, one would think that a person would need at least twelve years of education in order to cope. However, in recent yea

20、rs, a great many people have begun to question the purpose of having (30) education for twelve years.One big reason the question is being raised is the fact that an alarming number of young people who graduate from the school systems are unable to handle simple, everyday tasks, such as reading a new

21、spaper, (31) a job application or balancing a checkbook. These people are considered “ (32) illiterate“ by experts on the subject, who estimate that one out of five adults in the United States falls in this (33) . Without a mastery of everyday skills, it is extremely difficult for these people to (3

22、4) and deal with the demands of society. And as our language becomes more technical and the law more complex, life in general can only become more frustrating.Of course, efforts are being made to correct the problem as various agencies and colleges try to reach these people. But they are difficult t

23、o reach. Many are (35) the situation and prefer to live with rather than correct the problem.（分数：71.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_九、Part Reading Compr(总题数：0，分数：0.00)十、Section A(总题数：1，分数：35.50)Recent stories in the newspapers and magazines suggest that teach

24、ing and research contradict each other, that research plays too. (36) a part in academic promotions, and that teaching is badly (37) . There is an element of truth in these statements, but they also ignore deeper and more important relationships.Research experience is an (38) element of hiring and p

25、romotion at a research university because it is the emphasis on research that (39) such a university from an arts college. Some professors, however, neglect teaching for research and that presents a problem.Most research universities reward outstanding teaching, but the greatest (40) is usually give

26、n for achievements in research. Part of the reason is the difficulty of judging teaching. A highly responsible and tough professor is usually appreciated by top students who want to be challenged, but disliked by those whose records are less (41) . The mild professor gets overall ratings that are us

27、ually high, but there is a sense of disappointment in the part of the best students, exactly those for whom the system should present the greatest challenges. Thus, a university trying to (42) professors primarily on the teaching qualities would have to confront this confusion.As modern science move

28、s faster, two forces are (43) on professors: one is the time needed to keep on with the (44) ; the other is the time needed to teach. The training of new scientists requires outstanding teaching at the research university as well as the arts college. Although scientists are usually “made“ in the ele

29、mentary schools, scientists can be “lost“ by poor teaching at the college and graduate school levels. The solution is not to separate teaching and research, but to recognize that the combination is difficult but vital. The title of professor should be given only to those who profess, and it is perha

30、ps time for universities to (45) it for those willing to be an earnest part of the community of scholars. Professors unwilling to teach can be called “distinguished research investigators“ or something else.A. recognition I. essentialB. conserve J. confusionC. prominent K. distinguishesD. stimulate

31、L. reserveE. profession M. exertedF. underemphasized N. successiveG. demanding O. promoteH. impressive（分数：35.50）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_十一、Section B(总题数：1，分数：71.00)Blowing Hot and ColdA. Climate change may be slow and uncertain, but that is no excuse for

32、 inaction. One reason why uncertainty over climate change looks to be with us for a long time is that the oceans, which absorb carbon from the atmosphere, act as a time-delay mechanism. Their massive thermal inertia means that the climate system responds only very slowly to changes in the compositio

33、n of the atmosphere. Another complication arises from the relationship between carbon dioxide (CO2), the principal greenhouse gas (GHG), and sulphur dioxide (SO2), and a common pollutant. Efforts to reduce man-made emissions of GHGs by cutting down on fossil-fuel use will reduce emissions of both th

34、e gases. The reduction in CO2 will cut warming, but the concurrent SO2 cut may mask that effect by contributing to the warming.B. There are so many such fuzzy factorsranging from aerosol particles to clouds to cosmic radiationthat we are likely to see disruptions of familiar climate patterns for man

35、y years without knowing why they are happening or what to do about them. Tom Wigley, a leading climate scientist and member of the UNs Intergovernmental Panel on Climate Change (IPCC), goes further. He argues in an excellent book published by the Aspen Institute, “US Policies on Climate Change: What

36、 Next?“, that whatever policy changes governments pursue, scientific uncertainties will “make it difficult to detect the effects of such changes, probably for many decades.“C. As evidence, he points to the negligible short-to medium-term difference in temperature resulting from an array of emission

37、“pathways“ on which the world could choose to embark if it decided to tackle climate change. He plots various strategies for reducing GHGs that will lead in the next century to the stabilization of atmospheric concentrations of CO2 at 550 parts per million (ppm). That is roughly double the level whi

38、ch prevailed in preindustrial times, and is often suggested by climate scientists as a reasonable target. But even by 2040, the temperature differences between the various options will still be tinyand certainly within the magnitude of natural climatic variance. In short, in another four decades we

39、will probably still not know if we have over-or under-shot.D. However, that does not mean we know nothing. We do know, for a start, that the “greenhouse effect“ is real: without the heat-trapping effect of water vapor, CO2, methane and other naturally occurring GHGs, our planet would be a lifeless 3

40、0 or so colder. Some of these GHG emissions are captured and stored by “sinks“, such as the oceans, forests and agricultural land, as part of natures carbon cycle.E. We also know that since the industrial revolution began, mankinds actions have contributed significantly to that greenhouse effect. At

41、mospheric concentrations of GHGs have risen from around 280ppm two centuries ago to around 370ppm today, thanks chiefly to mankinds use of fossil fuels and, to a lesser degree, to deforestation and other land-use changes. Both surface temperatures and sea levels have been rising for some time.F. The

42、re are good reasons to think temperatures will continue rising. The IPCC has estimated a likely range for that increase of 1.4-5.8 over the next century, although the lower end of that range is more likely. Since what matters is not just the absolute temperature level but the rate of change as well,

43、 it makes sense to try to slow down the increase.G. The worry is that a rapid rise in temperatures would lead to climate changes that could be devastating for many (though not all) parts of the world. Central America, most of Africa, much of south Asia and northern China could all be hit by droughts

44、, storms and floods and otherwise made miserable.H. The colder parts of the world may benefit from warming, but they too face danger. One is the conceivable collapse of the Atlantic “conveyor belt“, a system of currents that gives much of Europe its relatively mild climate; if temperatures climb too

45、 high, say scientists, the system may undergo radical changes that damage both Europe and America. That points to the biggest fear: warming may trigger irreversible changes that transform the earth into a largely uninhabitable environment.I. Given that possibility, extremely remote though it is, it

46、is no comfort to know that any attempts to stabilize atmospheric concentrations of GHGs at a particular level will take a very long time. Because of the oceans thermal inertia, explains Mr. Wigley, even once atmospheric concentrations of GHGs are stabilized, it will take decades or centuries for the

47、 climate to follow suit. And even then the sea level will continue to rise. This is a vast challenge, and it is worth bearing in mind that mankinds contribution to warming is the only factor that can be controlled. So the sooner we start drawing up a long-term strategy for climate change, the better

48、.J. That is why the long-term objective for climate policy must be a transition to a low-carbon energy system. Such a transition can be very gradual and need not necessarily lead to a world powered only by bicycles and windmills, for two reasons that are often overlooked.K. One involves the precise form in which the carbon in the ground is distributed. According to Michael Grubb of the Carbon Trust, a British quasi