大学英语四级52及答案解析.doc

1、大学英语四级 52 及答案解析(总分：746.52，做题时间：130 分钟)一、Writing (30 minutes)(总题数：1，分数：30.00)1.For this part, you are allowed 30 minutes to write a composition about What Would Happen if There Were no Power in three paragraphs. You are given the first sentence or part of the first sentence of each paragraph. Your pa

2、rt of the composition should be no less than 120 words, not including the words given. 1. Ever since early last century, electricity has become an essential part of our modem life. 2. If there were no electric power, 3. Therefore, （分数：30.00）_二、Reading Comprehensio(总题数：1，分数：71.00)The Most Effective “

3、Vaccine“ China began work related to the research, prevention and control of AIDS after the first AIDS patient was diagnosed in 1985: In 1986, the State Commission on AIDS Control was founded. In 1987, the State formulated the program on the prevention and control of AIDS. In 1990, the Ministry of H

4、ealth worked out a medium-term plan on the prevention and control of AIDS, which was composed of a state general plan and 13 provincial-level plans. In December 1994, at the world anti-AIDS summit, the Chinese Government signed the Paris Declaration on the control of AIDS, making its own commitment

5、to support global AIDS prevention and control work. In 1995, the Ministry of Health put forth several key measures on the prevention of AIDS and the focal points for future AIDS prevention and control work. In 1996, the State treasury began to appropriate special funds for AIDS prevention and contro

6、l, which was then followed by 15 provinces, and 18 provinces began to set aside budgets for the prevention and control of AIDS in their annual public hygiene and epidemic prevention funds. In October, the Government decided to include the prevention and control of AIDS in the Ninth Five-Year Plan (1

7、996-2000) and the long-term program for socioeconomic development through the 21st century. Meanwhile, relevant ministries and commissions under the State Council, together with concerned organizations, divided work and responsibilities for the prevention and control of AIDS, and 19 provinces establ

8、ished AIDS prevention commissions or coordination groups. In 1997, the State Council established the AIDS prevention and control coordination meeting system. In 1998, related departments formulated the program for the current AIDS prevention and control work The Long and Medium-Term Plan for the Pre

9、vention and Control of AIDS in China (1998-2000). Tremendous efforts are still being made to monitor, prevent and control the spread of AIDS. Persistent efforts have been devoted worldwide to research on AIDS and HIV vaccines, and progress has been made in this regard. However, this virus, originati

10、ng from chimpanzees in Central and West Africa, imposes unprecedented difficulties and challenges to mankind. First, many of the medicines that have been developed so far are unable to thoroughly kill the virus, and the few medicines that do have a high treatment value are limited in use due to thei

11、r toxicity, side effects and unaffordable prices. Second, efforts to develop an HIV vaccine have yet to make substantial progress. The virus genetic information in chromosomes can act as “time bombs“ for the creation of new viruses, and variants of HIV may develop resistance against newly developed

12、treatments, which add difficulties to the already challenging treatment process. Certain types of viruses may even not produce antigens, enabling them to escape from traditional testing methods and making them hard to diagnose. “ Under the current circumstances, with no effective medicines or bio-va

13、ccines available, extensive publicity and education concerning the prevention and control of AIDS is the most important prevention and control method, and is also the most effective vaccine at present,“ said Liu Kangmai. In recent years, the Ministry of Health joined efforts with relevant department

14、s to formulate the Principles on the Publicity and Education in the Prevention and Control of AIDS and STDs. The document requires all quarters to intensify the publicity and education of regulations and laws concerning the prevention and control of infectious diseases, management over blood product

15、s and medical institutions, blood donation and the Criminal Law, in cooperation with education in the fight against drug abuse and prostitution , and in the establishment of healthy and positive concepts of love, marriage, family and sex. Despite these efforts, however, publicity and education still

16、 lack effective methods when compared with the development of the epidemic situation. The number of people receiving publicity and education is still quite limited. According to Liu Kangmai, there is a large gap between urban and rural residents in knowledge regarding AIDS. Two small-scale sample su

17、rveys conducted by the Beijing AIDS Prevention and Control Center among urban residents found that 80 percent of the participants had some knowledge on AIDS. The rate among the rural and floating population is much lower. Liu once made an investigation among long-distance truck drivers in Inner Mong

18、olia and found that half of them were ignorant of AIDS. Two surveys conducted by the AIDS Prevention and Control Center under the Ministry of Health in 1995 and 1997 showed that 63. 7 percent and 60. 92 percent of the respective participants knew about AIDS, with 95 percent of the informed groups ob

19、taining their information on AIDS through the media. Research conducted by the China STDs and AIDS Prevention and Control Society since 1991 found that the high risk groups lack knowledge about AIDS. The investigation was conducted through question-aires, group discussions, on-the-spot observations

20、and interviews among prostitutes, long-distance truck drivers, workers returning from service abroad and people who engage in promiscuous activities. Of the 410 female attendants who worked in roadside service establishments in the suburbs of three cities in Guangxi, 42 percent admitted that they ha

21、d had multiple sex partners, with only 1.6 percent u-sing condoms. Of the 119 female attendants who worked in roadside service establishments in the suburbs of two cities in Shandong, 64 percent admitted they had offered sexual services, with less than 7 percent of them using condoms each time. All

22、of the 221 female attendants working in roadside establishments in Hainan, averaging an age of 19, supported themselves with prostitution. Of them, 34 percent had never heard of AIDS, 35 percent were ignorant of STDs, 62 percent did not realize that STD is a kind of infectious disease, and only 28 p

23、ercent thought they might have contracted STDs. The 267 inmates in the womens reformatories in Beijing, Dalian, Xian and Nanjing, who were confined for prostitution, knew little about the channels for the spread of AIDS. Research conducted among 364 Guangxi and 160 Shandong long-distance truck drive

24、rs found that 43 percent and 23 percent of the respective groups had had multiple sex partners, and that less than 2 percent of them used condoms each time. A survey of 260 workers just about to go abroad for labor service showed that 20 percent had had more than two sex partners, and that 5-7 perce

25、nt said they would seek prostitutes abroad to satisfy their sexual needs. Prof. Liao Susu, who was involved in this research, said that since personal behavior is affected by numerous factors, such as society, economy, culture, politics, personal understanding, consciousness and feelings, it is hard

26、 to change. She suggested taking an insensitive attitude toward the sensitive issue of AIDS. Some people believe that those with high risk lifestyles and those who have contracted HIV are bad elements or morally degenerate people, which is untrue, said Prof. Liao. Their problems should be resolved t

27、he same way as those of ordinary people, Liao argued. Some researchers boldly proposed masturbation to meet sexual needs, saying that it is a healthy form of sexual satisfaction and sexual release, and is much safer than promiscuity. Experts explain that while extensively applying legal means and ca

28、rrying out moral education, health education should be conducted among both ordinary and high risk population groups. This will help promote safe sex and effectively prevent and control the spread of AIDS. （分数：71.00）(1).The State Commission on AIDS Control was founded soon after the State formulated

29、 the program on the prevention and control of AIDS.（分数：7.10）A.YB.NC.NG(2).Chinas long-term program for socioeconomic development through the 21st century may include the content about prevention and control of AIDS.（分数：7.10）A.YB.NC.NG(3).In 1997, some provinces had established the AIDS prevention an

30、d control coordination meeting system respectively.（分数：7.10）A.YB.NC.NG(4).The difficulty to control the AIDS is that the vaccines are very expensive.（分数：7.10）A.YB.NC.NG(5).There may be some certain types of HIVs which have not been recognized yet.（分数：7.10）A.YB.NC.NG(6).Blood donation may be banned a

31、ccording to the Principles on the Publicity and Education in the Prevention and Control of AIDS and STDs.（分数：7.10）A.YB.NC.NG(7).Publicity and education concerning the prevention and control of AIDS have turned out to be very effective according to the article.（分数：7.10）A.YB.NC.NG(8).The investigation

32、 on peoples knowledge about AIDS was conducted through questionnaires, group discussions , _and interviews.（分数：7.10）_(9).Of the 221 female attendants working in roadside establishments in Hainan, supported themselves with prostitution, _had never heard of AIDS.（分数：7.10）_(10).There is a stereo type f

33、or those who have contracted HIV that they are bad elements or_.（分数：7.10）_三、Listening Comprehens(总题数：1，分数：15.00)A.The woman feels sorry for the man.B.The man is a member of the staff.C.The area is for passengers only.D.The woman is asking the man to leave.A.Clean her house while she is away.B.Buy he

34、r some plants and take care of them.C.Water her plants while she is away.D.Water her plants when he is not at work.A.He will only be available in the afternoon.B.Its not his office hour.C.He doesnt have time.D.He is too tired after class.A.The woman insists on going out.B.The woman doesnt like watch

35、ing TV.C.The man promised her a gift on her birthday.D.The man is too tired to go out.A.There are too many courses offered to students.B.The woman should take fewer courses next term.C.The man will take four courses next semester.D.It is wiser to take more than four courses.A.Ask Tom to send an invi

36、tation.B.Get the Johnsons address.C.Invite Tom to the party.D.Tell Tom to pick up the Johnsons.A.Jane is looking for a summer job.B.Jane is packing for the summer vacation.C.Jane is on her way home.D.Jane is eager to go home for the vacation.A.Spending more time on sightseeing.B.Visiting the city wi

37、th a group.C.Touring the city on a fine day.D.Taking the man with her on the tour.A.The woman is driving too fast.B.The woman is driving at a slow speed.C.The woman has broken a traffic rule.D.The woman has parked her car in a wrong place.A.She can tell Joan when she sees her at noon.B.She should te

38、ll .loans brother about the reception.C.She must call on Joan after the reception.D.She may see Joans brother at lunch.四、Section B(总题数：2，分数：10.00)A.3.B.4.C.5.D.6.A.It should be at 11:00.B.It can be a bit earlier.C.He objects to having one.D.It shouldnt be changed.A.It is unrealistic.B.They should le

39、arn from the other companies to introduce it.C.They should investigate it.D.He agrees with the opinion of the Managing Director on this.A.They should have a new printer.B.They should have a company party.C.They should reorganize the furniture.D.They should have a non-smoking office.A.Her son.B.Her b

40、rother. .C.Her father.D.Her nephew.A.$50.B.$30.C.$20.D.$10.A.A chess set.B.A pen and pencil set.C.A book on athletics.D.A handball set.A.The threat of poisonous desert animals and plants.B.The exhaustion of energy resources.C.The destruction of oil wells.D.The spread of the black powder from the fir

41、es.A.The underground oil resources have not been affected.B.The underground water resources have not been polluted.C.The oil lakes soon dried up and stopped evaporating.D.Most of the desert animals and plants have managed to survive.A.To restore the normal production of the oil wells.B.To estimate t

42、he losses caused by the fires.C.To remove the oil left on the surface of the desert.D.To use the oil left in the oil lakes.A.Burning oil will need black powder detectors.B.A new environmental problem will arise from burning the oil.C.Black powder detectors are useful machines in cleaning up the gase

43、s.D.Residents near the oil lakes will breathe more oil vapors.A.Food.B.Houses.C.Land.D.Gold.A.They were afraid to work.B.Work was necessary and honorable.C.Men who worked had nothing to eat.D.Luxury was as important as work.A.Hard.B.Easy.C.Terrible.D.Miserable.A.How to distinguish peoples faces.B.Ho

44、w to describe peoples personality.C.How to distinguish people both inward and outward.D.How to differ good persons from bad persons.A.To give an example that both human beings and animals can recognize faces.B.To tell how a skilled writer could describe all the features of different people.C.To indi

45、cate how pigeons and people look different.D.To show how faces are like fingers.A.Physician.B.Psychologist.C.Fictional writer.D.Historian.A.His physical appearance and his action.B.His way of speaking and behaving.C.His learning and behavior.D.His way of acting and thinking.六、Section C(总题数：1，分数：10.0

46、0)Lets forget faster, higher, further. The toughest and most important of all Olympic contests is the (36) 1to host the summer Games. The (37) 2to win never comes to a city more than once in a generation, and the winner (38) 3an enormous benefit, as Barcelona, Sydney and Athens can all testify. This

47、 summer, the International Olympic Committee will (39) 4 which city is to host the 2012 Games and London is among the (40) 5 in a heavyweight contest, along with Paris, New York, Madrid and Moscow. If London does win, the (41) 6of the Lea Valley in Londons East End into Olympic Park, a fitting showc

48、ase for the worlds greatest (42) 7, will represent the greatest single (43) 8to British engineers of the early 21st century. (44) 9. One man who has been through the experience already is Dennis Le-nard, chief executive of Constructing Excellence, an organization set up by the Department of Trade and Industry to promote best practice in the building industry. An engineer from Australia, he worked in Sydney in the lead up to the Games there in 2000. (45) 10 although they are