大学英语六级73及答案解析.doc

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1、大学英语六级 73及答案解析(总分：428.04，做题时间：132 分钟)一、Part I Writing (3(总题数：1，分数：30.00)1.For this part, you are allowed 30 minutes to write a composition on the topic Harmfulness of Fake Commodities. You should write at least 150 words and you should base your composition on the outline ( given in Chinese) below:

2、1目前社会上有不少假冒伪劣商品，为什么会有这种现象? 2举例说明假冒伪劣商品对消费者个人、社会等的危害。 （分数：30.00）_二、Part II Reading C(总题数：1，分数：71.00)Space Travel in the Future Space flight may be about to undergo a transformation far more radical than anything planned by national or international space agencies. In the next fifteen years or so , th

3、ere could be a fleet of fifty space-planes carrying a million people into orbit about the Earth each year, at $ 10,000 per head. A prototype of spaceplane could be up and flying within five or six years. Perhaps surprisingly the main obstacles to realizing this dream are neither technical nor commer

4、cial. Space transportation is expensive and risky at present because all launchers so far have used large throw-away components that are based on ballistic missile technology. But the technology already exists for a prototype of a fully reusable, aeroplane-like launcher, and its development costs ne

5、ed only be equivalent to about two space shuttle flights (about $ 1,000 million). The cost per prototype space-plane flight would be about 1 percent of the cost in the space shuttle. Costs that low will not be achieved without several years of operating experience and continuous development to creat

6、e heat shields and rocket motors that meet the usual airliner standards of long life and low maintenance costs. According to recent market research in Japan, more than a million people a year would be prepared to pay such a price for a brief visit to a space station. If correct , this level of space

7、 tourism would provide the sort of commercial incentive and operating experience needed to achieve airliner standard. However, space policy is so dominated by politics that more than sound engineering and commercial arguments will be needed to transform a high-cost industry into a low-cost one. Many

8、 aviation engineers in 1961, was as a member of a spaceplanes to be feasible over thirty yeas ago. ( My first job, starting in 1961, was as a member of a spacepalne design team. ) They were not developed primarily because the main player in the filed, NASA, because preoccupied with its part in the C

9、old War and locked into a ballistic missile mindset. As a result, NASA has not encouraged studies of spaceplanes that could be built u-sing existing technology and tends to view predictions such as those outlined above as far-fetched. How then can the transformation be brought about? Four recent eve

10、nts should between them trigger the required overthrow of the mindset. The first components have been manufactured for the International Space Station and NASA, in conjunction with the Space Transportation Association, has begun the first official study the Orbital Science Corporation and the Rockwe

11、ll International Corporation, for development of the X -34 launcher. The X-34 has a reusable lower stage and an expendable upper stage, and is designed to reduce the cost of launching small satellites. Unpiloted and looking rather like a large, fat fighter aeroplane, it is launched from a converted

12、Boeing 747. Having released the upper stage at about one half satellite speed, the rocket-powered lower stage glides back to base and lands. Following inspection, maintenance and refueling, the lower stage will be ready for the next flight a few days later. The first orbital test flight is scheduled

13、 for just two and a half years from now. In April 1995, NASA places competitive study contracts with Lockheed, McDonnell Douglas and Rockwell for the X-33 demonstrator, which is tended to lead to an unpiloted single-stage-to-orbit launcher. When the implications of such projects become widely apprec

14、iated, the case for a new and realistic way ahead for space will become overwhelming. While the X-34 cannot be described as a true space-plane , since it has an expendable upper stage, if it is successful it will provide unassailable evidence for the feasibility of a true spaceplane. A piloted two-s

15、tage spaceplane using existing technology will then be seen as among the all-time best aerospace buys. Its development cost would be recovered by saving just three shuttle flights. It is not so much that the spaceplane would be especially efficient, but rather that the shuttles are especially ineffi

16、cient, and that NASA has so far succeeded in playing down this fact. British companies have proposed designs that are more suitable than the X-33 and X-34, but they are handicapped by a government, which would not prepare to invest in even seed corn studies of new launchers. The largest new space pr

17、oject planned at present is the International Space Station. The estimated cost is about $ 20 billion plus about the same again in launch costs, including some 28 shuttle flights. A large part of the cost is due to the complexity of integerating the various modules from the US, Canada, Europe, Japan

18、, and Russia. If these modules were adapted to be flown separately as independent small space stations, not only would costs come tumbling down, but the science would be far better because each disciplinebe it astronomy, atmospheric science, Earth observation or microgravity research has a different

19、 optimum orbit. The resulting constellation of small space stations would require more frequent servicing and supply flights than the single large one. This would not be affordable using the shuttle but would be with the new spaceplane. The total cost could be reduced by at least 80 per cent to less

20、 than $ 8 billion. Then all that is needed is for some entrepreneur to realise that the best way to finance new space-plane and space stations is to carry tourists. And before too long a million people a year will be taking their once-in-a-lifetime, round-the-world cruise in orbit. （分数：71.00）(1).In

21、1961, NASA has encouraged studies of spaceplanes that could be built using existing technology.（分数：7.10）A.YB.NC.NG(2).Space policy is dominated by politics.（分数：7.10）A.YB.NC.NG(3).Four recent events should between them trigger the required overthrow of the mindset. The first components and second com

22、ponents have been manufactured for the International Space Station.（分数：7.10）A.YB.NC.NG(4).British companies have proposed designs that are more suitable than the X-33 and X-34, but the government does not support it.（分数：7.10）A.YB.NC.NG(5)._ countries have worked together to build the International S

23、pace Station.（分数：7.10）_(6).The main difficulties of space flight are neither _ nor _.（分数：7.10）_(7).The best way to finance new spaceplanes and space stations is _.（分数：7.10）_(8).The large new space project planned at present is the _.（分数：7.10）_(9).The X -34 has a reusable lower stage and an expendabl

24、e upper, the goal of designs is _.（分数：7.10）_(10).In April 1995, makes the _.（分数：7.10）_三、Listening Comprehens(总题数：1，分数：15.00)A.She needs a new raincoat or umbrella.B.It will probably rain tomorrow.C.She doesnt know what the weather will be like tomorrow.D.She doesnt know where the man put his raincoa

25、t or umbrella.A.He has some work to do.B.The woman is going to do that.C.His boss is coming to see him.D.He doesnt feel like eating any bread today.A.Seeing a film.B.Diving in the sea.C.Having a class.D.Doing an experiment.A.At 11 oclock.B.At 4 oclock.C.At 7 oclock.D.At 2 oclock.A.To meet Tom Wang.B

26、.To work in his office.C.To go to hospital.D.To attend a meeting.A.An educational problem.B.A health problem.C.A Chemical problem.D.An environmental problem.A.The teacher postponed the conference.B.There wont be a test this afternoon.C.The students will be attending the conferenceD.The students took

27、 a science test that afternoon.A.She is forgetful.B.She is considerate.C.She is forgiving.D.She is careless.四、Section A(总题数：2，分数：10.00)A.There are over 1,000 miles of track in Britain.B.In Britain there are about 250,000 miles of track.C.There are over 13,000 miles of track in England.D.In England t

28、here are 133,000 miles of track.A.London Airport is one of the best airports in the world.B.One of the busiest airports in the world is London Airport.C.London Airport is one of the biggest airports in the world.D.In the world, London Airport is one of the safest airports.A.The sea travel in Britain

29、 has become more important.B.The sea travel in Britain has become less important.C.The most preferable form of transport in Britain is the sea travel.D.In Britain, the least preferable form of transport is the sea travel.A.Relaxing at the seashore.B.Visiting her parents.C.Sailing on a boat.D.Prepari

30、ng for a race.A.She was invited only for the weekend.B.The weather was too hot.C.She had an appointment.D.She had schoolwork to do.A.She doesnt know how to swim.B.The water was too deep.C.The water was too cold.D.She didnt have enough time.五、Section B(总题数：3，分数：10.00)A.The meaning of facial expressio

31、ns depends on situations.B.Facial expressions can cause misunderstanding across culture.C.People from one culture may lack facial expressions because they experience less emotions.D.Facial expressions may disguise true feelings.A.They smile to cover embarrassment.B.It is an unusual and even suspicio

32、us behavior.C.They smile to show politeness.D.It is an expression of pleasure.A.We shouldnt judge people by reading their faces.B.We shouldnt smile in the wrong place.C.We shouldnt cover our true feelings.D.We shouldnt express our emotions too openly.A.It allowed workers to spend more time at home.B

33、.It gave workers opportunity for better training.C.It enabled people to live far from their workplace.D.It eliminated many factory jobs.A.The lack of a qualified sales force.B.Lower price in suburban shopping malls.C.Unpleasant highway commuting.D.Limited land available.A.Job opportunities are bette

34、r there.B.Prices are lower in downtown stores.C.Highway commuting has become unpleasant.D.The living conditions are better there.A.A discussion of air pollution.B.Predictions of fuel surpluses.C.Slides of recently discovered fossils.D.A description of urban transportation patterns.A.To study how stu

35、dents remember English vocabulary by short-term memory.B.To study how students learn English vocabulary.C.To study how to develop students ability in English.D.To study how long information in short-term memory is kept.A.Information in short-term memory is different from that in long-term memory onl

36、y in content.B.Long-term memory can be achieved only by training.C.It is easier to test short-term memory than long-term memory.D.Henning gave a test on vocabulary to his subjects.A.Beginners have difficulty distinguishing the pronunciation of words.B.Advanced students remember words by their meanin

37、g.C.It is difficult to remember words that have the same meaning.D.It is difficult to remember words that sound alike.六、Section C(总题数：1，分数：10.00)Nightmare disorder, which is also called dream disorder, is (36) 1by the occurrence of repeated dreams during which the sleeper feels (37) 2and frightened.

38、 Nightmares are dreams that cause intense fear. During the dream, the sleeper usually (38) 3or experiences a threat to their life or safety. Nightmares are also reported that do not involve (39) 4danger. As the dream progresses, the threat to the person usually increases, as does their sense of fear

39、. Waking usually occurs just as that threat or danger reaches its (40) 5. The person wakes from the nightmare with a (41) 6sense of fear. Waking is complete, and usually (42) 7by increased heart rate, sweating, and other symptoms of (43) 8or fear. Once fully awake, (44) 9. Because clarity is achieve

40、d immediately upon waking, returning to sleep after a nightmare is often difficult. (45) 10. In addition, people may have problems falling asleep if they are experiencing tension caused by the fear of having nightmares. As a result, these people may have the signs and symptoms associated with mild s

41、leep deprivation. The causes of nightmares are not known for certain. (46) 11. About half of these people are thought to suffer from psychiatric disorders that cause the nightmares. （分数：10.00）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:_填空项 1:_七、Reading Comprehensio(总题数：2，分数

42、：177.00)Mario DeLiberty had been living a small businessmans dream. Twenty-one years ago he opened up the Westgate Pub in Havertown, Pennsylvania, after buying a seedy (破烂的) bar“a real trash can, everything covered in grease and nicotine,“ he saysand turning it into a spiffy (整洁的) family restaurant.

43、 But one day last year DeLiberty opened his mail and learned he was being sued. A group called the American Disability Institute said DeLibertys pub failed to comply with the federal Americans With Disabilities Act (ADA), which requires that businesses be accessible to the handicapped. Some of the a

44、lleged violations at the Westgate Pub were laughable: a toilet that was supposed to hang 18 inches from a wall was only 17 inches away, for instance. Others were off the mark. The suit complained that Westgates parking lot had no handicapped spacebut DeLiberty says the lot is run by the local townsh

45、ip. Meanwhile, he had served handicapped patrons for years, letting one customer regularly bring in his Seeing Eye dog, and never heard a complaint. Moreover, DeLiberty would have been willing to make any necessary changes if given the chance. He wasnt. The message of the letter, he says, was clear:

46、 “We will close you down.“ There was one possible way out, though. DeLiberty could settle the case for $2,100. Worried about an expensive legal battle, he bargained down to $1,600 and paid up. And that was it. “I never heard from them again,“ he says. Before long, DeLiberty learned he was one of dozens of local businesses targeted this way. The founder of the American Disability Institute, who is a retired dentist, told the local newspaper that he planned to file more than 5,000 similar suits, potentially reaping millions of dollars in settlements. “They throw fear into you,“ DeLiberty say