[外语类试卷]大学英语四级模拟试卷943（无答案）.doc

1、大学英语四级模拟试卷 943（无答案）一、Part I Writing (30 minutes)1 For this part, you are allowed 30 minutes to write A Letter of Application. You should write at least 120 words following the outline given below in Chinese: 1. 在 China Daily 看到招聘电脑程序员的广告 2. 介绍自己的学习和工作经历 3. 请求面试二、Part II Reading Comprehension (Skimmi

2、ng and Scanning) (15 minutes)Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-7, mark：Y (for YES) if the statement agrees with the information given in the passage;N (for NO) if the statement contradic

3、ts the information given in the passage;NG (for NOT GIVEN) if the information is not given in the passage.1 Watch out for Falling SatellitesWhat Is Happening?An out-of-control US spy satellite will crash to Earth in the coming months, government officials say. The satellite is large enough that debr

4、is are likely to survive atmospheric re-entry and strike the Earth, sometime in late February or early March, says Gordon Johndroe, a spokesman for the National Security Council.Is That Normal?“This is relatively routine in that satellites deorbit all the time,“ says Johndroe. Pieces of uncontrolled

5、 debris heavier than two stones mostly discarded rocket stages crash to Earth as often as once every three weeks, says Jonathan McDowell, an astronomer and launch observer at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts. Many discarded pieces retain some power, so that

6、 controllers on Earth can guide them to a point far from human habitation, usually using a final dive into an ocean.In 2001, Russian space officials broke up the old Mir space station in this way over the South Pacific. Thats not the case for this US one, however.“Obviously, we want to take a look a

7、t the potential for it to land in a populated area,“ says Johndroe. “As background, Id like to say that over the past 30 plus years, there have been many satellites and other man-made objects falling from space of course, they falling with very little damage and no injuries. What makes this case a l

8、ittle bit different, however, and in particular for the president in his consideration, was the likelihood that the satellite, upon descent to the Earths surface, could release much of its thousand-plus pounds of hydrazine fuel as a toxic gas. “What Are the Chances of It Crashing Through My Roof?Exc

9、eedingly slim, says McDowell. Remember that some 70% of the Earth is water, and most lands are void of people. “There is no reason for people to get alarmed about it,“ he says. According to the NASA Orbital Debris Program Office, there have been no confirmed instances of serious property damage or i

10、njury caused by crashing debris in 40 years. The likelihood of the satellite falling in a populated area is small, and the extent and duration of toxic hydrazine in the atmosphere would be quite limited; nevertheless, if the satellite did fall in a populated area, there was a possibility of death or

11、 injury to human beings beyond that associated with the fall of satellites and other space objects normally, if we can use that word. Specifically, there was enough of a risk for the president to be quite concerned about human life, and on that basis, he asks us to review our options.What Is This Sa

12、tellite?Since it is a spy satellite, this isnt public information. But it is likely to be USA 193, which, according to news reports, was launched at the end of 2006 for the National Reconnaissance Office (NRO) and which was lost to ground-based controllers upon reaching orbit. At the time, amateur s

13、ky watchers noticed that its orbit was slightly off and wasnt being corrected. Based on the slight losses in altitude, they had predicted an eventual crash this spring, McDowell says.If the dying satellite is indeed USA 193, its specifications can be better defined. USA 193 was launched on a Boeing

14、Delta 2 rocket, which limits the size of the satellite to between two and four tonnes and five or six meters in length about the size of a minivan, McDowell says. This satellite is now at an altitude of 250 kilometers and is falling a kilometer per day. It orbits in the mid-latitudes, between 58 deg

15、rees north and south. Where it will fall within that range is impossible to know now, so McDowell says the chance of landing in the United States, for example, is 2%, based on area. Better estimates should be available a day before landing.Is the “Minivan-sized“ Satellite a Big One?Nowhere near as b

16、ig as a satellite that fell uncontrollably in 1979: the more-than-70-tonne US Skylab I crashed through the atmosphere and scattered debris across the Indian Ocean and Western Australia.What Will Happen to This One on Entry?The atmosphere will tear up the satellite. Aluminum parts and outer layers wi

17、ll burn. Twisted chunks of heavier pieces, like the fuel tank, could survive. McDowell says that the satellite could contain as much as a tonne of hydrazine, a highly toxic propellant which could be hazardous to be near but not dangerous when dispersed in the atmosphere.Have Bits of Satellites Survi

18、ved Re-entry Intact Before?Yes. The NASA Orbital Debris Program Office hosts some pictures of pretty big chunks, including: a 250-kilogram steel fuel tank and a 30-kilogram titanium tank of a launch vehicle that both landed in Texas in 1997, and a 70-kilogram titanium rocket motor casing that landed

19、 in Saudi Arabia in 2001. One noteworthy ill-fated satellite actually crash landed through the roof of a workshop supporting its launch in 2006, having fallen from a botched take-off.How Many Things Are There That Could Potentially Fall Out of Orbit?Yes. NASA Orbital Debris Program Office says there

20、 are some 11,000 objects bigger than 10 centimeters tracked by the US Space Surveillance Network. Of course, the biggest man-made object in the sky, by far, is the International Space Station. Nearly 45 meters long and more than 200 tones heavy, the concern about the ISS is in protecting it from deb

21、ris, rather than worrying about it becoming debris itself.If It Lands in the Middle of Nowhere, does It Matter?While the impact is likely to be a nonevent, the falling satellite does serve as a reminder that the NRO the United States “eyes and ears in space“ is having a bad time of things. In 2005,

22、the NRO cancelled a next-generation reconnaissance technology project, called Future Imagery Architecture, after Boeing had spent more than $ 4 billion on it, according to the New York Times. “The NRO has had a bad decade,“ says Jeffrey Lewis, a space policy analyst at the New America Foundation in

23、Washington DC. “We knew this satellite has been dead for a long time. But it reminds us of how much trouble theyve had.“2 When will the disabled US spy satellite crash to Earth?（A）Sometime in next March.（B） Perhaps in next February.（C） On the first day of February.（D）Maybe in early March.3 McDowell

24、says that most of the heaviest uncontrolled debris crashing to Earth_.（A）are satellites which have deorbited（B） are then discarded in three weeks（C） come from rocket launchings（D）still have power to use4 Why does Johndroe say that the coming crash of the spy satellite is different?（A）It will bring v

25、ery little damage.（B） It may release much toxic gas.（C） It may land in a populated area.（D）It has bothered the president.5 How would McDowell like the idea that people should be warned of the coming crash?（A）It is a good idea.（B） It is reasonable.（C） It is useless.（D）It is unnecessary.6 Who had pred

26、icted the crash of USA 193 before the government uncovered it?（A）Amateur sky watchers.（B） Jonathan McDowell.（C） Gordon Johndroe.（D）Ground-based controllers.7 What do we know about the satellite USA 193?（A）It is five or six meters long.（B） It is of the same shape of a small van.（C） It is very likely

27、to land in America.（D）It is more than 70 tonnes.8 Which part of the dying satellite could survive atmospheric re-entry?（A）The Aluminum parts.（B） The propellant container.（C） The outer layers.（D）The 250-kilogram steel fuel tank.9 According to McDowell, the propellant of USA 193 satellite could lose i

28、ts toxicity when it is_.10 To protect the ISS, the US Space Surveillance Network should try to keep it from_.11 The dead and falling US spy satellite reminds people that NRO is in big_now.Section ADirections: In this section, you will hear 8 short conversations and 2 long conversations. At the end o

29、f each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer.（A）Sec

30、retary and boss.（B） Client and lawyer.（C） Student and teacher.（D）Patient and nurse.（A）That the man will not be able to sleep.（B） That someone will enter the back door while the man is sleeping.（C） That the lock on the door will break.（D）That the man will not be able to come back.（A）16.（B） 12.（C） 4.（

31、D）2.（A）The Best of Jazz.（B） Christmas Carols.（C） Classical Favorites.（D）Rock Music Collection.（A）It is closed.（B） 9 A.M. to 5 P. M.（C） 12 noon to 9 P.M.（D）9 A. M. to 12 noon.（A）Gensen（B） Jensen（C） Jinsin（D）Ginsin（A）At Sun Valley.（B） At the health center.（C） At home.（D）At work.（A）8.（B） 7.（C） 4.（D）3.5

32、0.（A）Lack of electricity.（B） Shortage of books.（C） Lack of clean water.（D）Shortage of experts.（A）A system which trains doctors.（B） A group of experts who can provide professional advice.（C） A computer program which can provide professional advice.（D）A system which trains computer experts.（A）It is no

33、t easy to see the shortage of experts in the villages.（B） Many doctors and engineers are sent to the villages to make up for the shortage of experts.（C） Expert medical systems are widely used in developing countries.（D）Expert systems are owned by wealthy farmers and businessmen.（A）Next Thursday.（B）

34、Next Tuesday.（C） This weekend.（D）Tomorrow night. （A）Thursday.（B） Friday.（C） Saturday.（D）Sunday. （A）He is going to write a paper.（B） He is going to a football game.（C） He is going to sleep all morning.（D）He is going downtown with some guys. （A）Brother and sister.（B） Mother and son.（C） Teacher and stu

35、dent.（D）Classmates. Section BDirections: In this section, you will hear 3 short passages. At the end of each passage, you will hear some 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,

36、B, C and D.（A）Males.（B） Ethnic males.（C） White males.（D）Women.（A）40 cents for every dollar.（B） 58 cents for every dollar.（C） 65 cents for every dollar.（D）76 cents for every dollar.（A）Work the same number of hours; same education, age and union status; live in different regions of the country.（B） Liv

37、e in the same region of the country; same age and union status; work same number of hours.（C） Worked for the government; lived in the same region of the country; education; same age; union status and education.（D）Work the same number of hours; same age, union status and education; lived in the same

38、region of the country.（A）90.（B） 108.（C） 180（D）668（A）Englands Footballer of the Year.（B） A soccer coach in West Germany.（C） A medalist for his sportsmanship.（D）A member of the Order of the British Empire.（A）Editing Sunday Sport.（B） Working for Capital Radio.（C） Managing professional soccer teams.（D）D

39、eveloping a sports marketing company.（A）Their flying ability improved greatly.（B） They became warm-blooded.（C） They began to lay eggs.（D）They changed their migration patterns. Section CDirections: In this section, you will hear a passage three times. When the passage is read for the first time, you

40、should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 36 to 43 with the exact words you have just heard. For blanks numbered from 44 to 46 you are required to fill in the missing information. For these blanks,

41、 you can either use the exact words you have just heard or write down the 33 News agency is also called news service【B1 】_, which collects, writes, and distributes news from around a nation or the world to newspapers, periodicals, radios and television broad, casters, and other users. It doesnt【B2】_

42、news itself but supplies news to its subscribers, who, by sharing costs, obtain services they could not otherwise【B3】_. All the mass media depend upon the agencies for the bulk of the news, even including those few that have【B4】_news resources of their own.The news agency has a variety of forms. In

43、some large cities, mass media have joined forces to get【B5】_coverage of news. National agencies have extended the area by【B6 】_and distributing stock-market quotations, sports results, and election reports. A few agencies have extended their service to include news【B7】_, special columns, news photog

44、raphs, audiotape recordings, etc Many agencies are【 B8】_. and the trend has been in that direction since World War .【B9 】_. In major news centers the national and worldwide agencies have their own reporters to cover important events, and they maintain offices to facilitate distribution of their serv

45、ice.【B10 】_. Most of them purchase the news services of national or local agencies to supplement news collected by their own staff representatives at key points.Actually, the ability of news agency to transmit news rapidly increased during the 20th century.【B11】_.34 【B1 】35 【B2 】36 【B3 】37 【B4 】38 【

46、B5 】39 【B6 】40 【B7 】41 【B8 】42 【B9 】43 【B10 】44 【B11 】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

47、choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item with a single line through the center. You may not use any of the words in the bank more than once.44 When Roberto Feliz came to the USA from the Dominican Republic, he knew only a few word

48、s of English. Education soon became a【S1】_. “I couldnt understand anything,“ he said. He【S2】_from his teachers, came home in tears, and thought about dropping out.Then Mrs. Malave, a bilingual educator, began to work with him while teaching him math and science in his【S3】_Spanish. “She helped me sta

49、y smart while teaching me English,“ he said. Given the chance to demonstrate his ability, he【S4】_confidence and began to succeed in school.Today, he is a【S5 】_doctor, runs his own clinic, and works with several hospitais. Every day, he uses the language and academic skilis he【S6 】_through bilingual education to treat his patients.Robertos story is just one of【S7】_success stories. Research has shown that bilingual