大学英语六级139及答案解析.doc

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1、大学英语六级 139及答案解析(总分：428.03，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 thirty minutes to write a composition on the topic: Psychological Problems of University Students. You should write at least 150 words, and base your composition on the chart and the outline giv

2、en below: （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 , there could be a fleet of fifty space-planes

3、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 commercial. Space transportation is expensive and

4、 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 need only be equivalent to about two space sh

5、uttle 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 create heat shields and rocket motors that meet

6、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 tourism would provide the sort of commerci

7、al 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 aviation engineers in 1961, was as a membe

8、r 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 Cold War and locked into a ballistic missile

9、 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 events should between them trigger the require

10、d 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 Rockwell International Corporation, for developme

11、nt 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 Boeing 747. Having released the upper stage

12、 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 for just two and a half years from now. In

13、 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 appreciated, the case for a new and realistic way

14、 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-stage spaceplane using existing technology w

15、ill 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 inefficient, and that NASA has so far succeeded i

16、n 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 project planned at present is the Internation

17、al 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, and Russia. If these modules were adapted

18、 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 optimum orbit. The resulting constellation

19、 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 than $ 8 billion. Then all that is needed

20、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 1961, NASA has encouraged studies of spacep

21、lanes 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 components have been manufactured for the Inte

22、rnational 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 Space Station.（分数：7.10）_(6).The main difficu

23、lties 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 expendable upper, the goal of designs is _.（分数：7.10）

24、_(10).In April 1995, makes the _.（分数：7.10）_三、Listening Comprehens(总题数：1，分数：15.00)A.She loves shopping very much.B.She has a lot of studying.C.She always gets high marks in her exams.D.She went shopping with the women yesterday.A.To talk with her roommate.B.To talk with the noise maker.C.To talk with

25、 the dorm supervisor.D.To talk with all the students in the dorm.A.She should stay up all night to prepare for her exam.B.Shed better have good rest instead.C.She should study in the night and have a rest in the morning before the exam.D.She should sleep early and get up in the morning to study.A.He

26、 accepts the womans invitation.B.He doesnt want to accept the womans invitation.C.He has to ask for Susans opinion and then he can decide.D.He doesnt think Susan will agree to go.A.The situation of the rail service will be the same tomorrow.B.The woman is in time for her class.C.The man drives to un

27、iversity.D.The train station is about to be shut down.A.To practice more on volleyball.B.To have good rest after practice.C.To eat more healthily.D.To focus on her study.A.Wait for him until he finishes his class.B.Invite Judie to play instead.C.Cancel the game and stay at home.D.Go to attend the cl

28、ass with him.A.He dislikes food from the snack bar.B.He doesnt need anything.C.He asks the woman to buy a newspaper for him.D.He will go with the woman and hand in his term paper.四、Section A(总题数：2，分数：10.00)A.To get a library card.B.To get familiar with the resources there.C.To borrow some books he n

29、eeds.D.To study how to use the computer to locate the books in the library.A.The man used to live in the city.B.The library uses computer systems.C.The woman is ready to help.D.The man is confident of his computer skills.A.A city guide.B.A librarian.C.A computer expert.D.A registrar.A.Art history.B.

30、Elementary education.C.American literature.D.Psychology.A.They are the parents of young children.B.They are professional storytellers.C.The stories will help them improve their vocabulary.D.The stories are required for a course.A.The same personauthor of The Cat in the Hat.B.Friends of the speakers.

31、C.Psychology professors.D.Fictional characters.A.Its author is unknown.B.Its useful as a teaching tool.C.It uses an extensive vocabulary.D.Children find it repetitive and boring.五、Section B(总题数：3，分数：10.00)A.A delicate art.B.A religion.C.An exact science.D.A way of life.A.His general health will bene

32、fit greatly.B.He will begin to breathe more regularly.C.His flexibility will decrease.D.He will lose weight readily.A.Begin breathing through the nostrils.B.Slow down somewhat, but continue straining.C.Stop the particular exercise at once.D.Close his mouth immediately.A.Synthetic fuel.B.Solar energy

33、.C.Alcohol.D.Electricity.A.Air traffic conditions.B.Traffic jams on highways.C.Road conditions.D.New traffic rules.A.Go through a health check.B.Take little luggage with them.C.Arrive early for boarding.D.Undergo security checks.A.Fire prevention.B.House construction.C.Toxic chemicals.D.Insects Elim

34、ination.A.Its cheaper.B.Its safer.C.Its quicker.D.Its convenient.A.Because the hot air has to reach a certain temperature.B.Because the house is very big.C.Because termites try to escape by hiding in wooden beams.D.Because termites may survive for a full six hours.A.To emphasize the dangers of the o

35、ld method.B.To explain a step in the new technique.C.To show that the treatment will not cause fire.D.To illustrate a combination of old and new treatment.六、Section C(总题数：1，分数：10.00)George just turned fifty last week. Hes a (36) 1 businessman, who owns a large printing company. He lives in a beautif

36、ul home with his wife and two daughters, drives an (37) 2car and wears the best clothes. He has everything that money can buy except for one thing, good (38) 3. It happened one evening as he was leaving the office. All day long he had felt (39) 4of breath. Suddenly he was a little (40) 5. He can sti

37、ll remember the terrible pains in his (41) 6as he fell. For two weeks George lay in the(42) 7care unit of the hospital. Before leaving the hospital, he got his orders from the doctor about what to do after a heart (43) 8. He is how trying to follow them. George has to lose weight and exercise each d

38、ay. (44) 9. He cant have his usual eggs and sausage breakfast, and must drink water instead of coffee. For lunch, he cant order the rich French food that he loves so much. For dinner, he has to eat fish or chicken and vegetables. (45) 10. Our businessman also has to slow down at the office. At first

39、, he is supposed to work only for four hours a day. (46) 11 George misses the long hours and the excitement of the office. How did this happen to him? Hes only fifty years old. （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：177.

40、00)It was the worst tragedy in maritime (航海的) .history, six times more deadly than the Titanic. When the German cruise ship Wilhelm Gustloff was hit by torpedoes (鱼雷) fired from a Russian submarine in the final winter of Word War , more than 10,000 people - mostly women, children and old people flee

41、ing the final Red Army push into Nazi Germany - were packed aboard. An ice storm had turned the decks into frozen sheets that sent hundreds of families sliding into the sea as the ship tilted and began to go d own. Others desperately tried to put lifeboats down. Some who succeeded fought off those i

42、n the water who had the strength to try to claw their way aboard. Most people froze immediately. “Ill never forget the screams,“ says Christa Niittzmann, 87, one of the 1, 200 survivors. She recalls watching the ship, brightly lit, slipping into its dark grave - and into seeming nothingness, rarely

43、mentioned for more than hall a century. Now Germanys Nobel Prize-winning author Gnter Grass has revived the memory of the 9,000 dead, including more than 4.,000 children - with his latest novel Crab Walk, published last month. The book, which will be out in English next year, doesnt dwell on the sin

44、king; its heroine is a pregnant young woman who survives the catastrophe only to say later: “Nobody wanted to heal about it, not here in the West (of Germany) and not at all in the East.“ The reason was obvious. As Grass put it in a recent interview with the weekly Die Woche: “Because the crimes we

45、Germans are responsible for were and are so dominant, we didnt have the energy left to tell of our own sufferings.“ The long silence about the sinking of the Wilhelm Gustloff was probably unavoidable - and necessary. By unreservedly owning up to their countrys monstrous crimes in the Second World Wa

46、r, Germans have managed to win acceptance abroad, marginalize (使不得势) the neo-Nazis at home and make peace with their neighbors. Todays unified Germany is more prosperous and stable than at any time in its long, troubled history. For that, a half century of willful forgetting about painful memories like the German Titanic was perhaps a reasonable price to pay. But even the most politically correct Germans believe that theyve now earned the right to discuss the full historical record. Not to equate German suffering with that of its victims, but simply to acknowledge a terribl