公共英语五级-19及答案解析.doc

1、公共英语五级-19 及答案解析(总分：109.00，做题时间：90 分钟)一、BSection Liste(总题数：1，分数：10.00)BPart A/B I You will hear a conversation between a student, Mr. Li , and his tutor, Dr. White. As you listen, answer Questions 1 - 10 by circling True or False. You will hear the conversation ONLY ONCE. You now have 60 seconds to r

2、ead Questions 1 - 10./I（分数：10.00）(1).Dr. White and Mr. Li have not met befor（分数：1.00）A.正确B.错误(2).Li is doing his Ph. D.（分数：1.00）A.正确B.错误(3).White has just come back from Thailand.（分数：1.00）A.正确B.错误(4).Europe has solved the problem of illiteracy.（分数：1.00）A.正确B.错误(5).Illiteracy declined more than 10 %

3、from 1970 to 1990.（分数：1.00）A.正确B.错误(6).In China, illiterate women aged 60 or more were twice as many as illiterate men of the same age in 1990.（分数：1.00）A.正确B.错误(7).Old illiterate people do not want to learn mainly because they are afraid of being ridiculed.（分数：1.00）A.正确B.错误(8).Research shows that pe

4、oples learning ability does not become worse while aging.（分数：1.00）A.正确B.错误(9).Li is going to finish his thesis in two months.（分数：1.00）A.正确B.错误(10).Lis difficulty is not having enough data.（分数：1.00）A.正确B.错误二、BPart B/B(总题数：3，分数：10.00)IQuestions 11 - 13 are based on the following talk. You now have 15

5、seconds to read Questions 11 - 13./I（分数：3.00）(1).The speaker says it is necessary to talk about hay because（分数：1.00）A.he is giving lectures on cattle raising.B.he is giving lectures on meat production.C.he is giving lectures on farm animals.D.he is giving lectures on grasses.(2).According to the spe

6、ech, weather is an important factor in haymaking because（分数：1.00）A.under a fierce sun the hay would be dried too soon.B.bad weather would infect the quality of the hay.C.in cold weather the need of hay would increase greatly.D.in bad weather hay must be made by machines.(3).From the speech we learn

7、that sometimes straw layers are put in the hay because（分数：1.00）A.the straw can reduce the moisture of the hay.B.the straw can keep the salt out of the hay.C.the straw can make it easier to make hay bundles.D.the straw can make the hay more tasty for the cattle.IQuestions 14 - 16 are based on the fol

8、lowing conversation. You now have 15 seconds to read Questions 14 - 16./I（分数：3.00）(1).The man is（分数：1.00）A.a retired pilot.B.a retired engineer.C.a post officer.D.a farmer.(2).The object（分数：1.00）A.stayed still all the time.B.moved around from time to time.C.flew away slowly.D.flew away quickly.(3).T

9、he woman is most likely（分数：1.00）A.a local officer.B.a newspaper correspondent.C.a UFO fan.D.a TV reporter.IQuestions 17 - 20 are based on the following talk. You now have 20 seconds to read Questions 17- 20./I（分数：4.00）(1).It seems that fudge is（分数：1.00）A.soft candy.B.hard candy.C.a ball of sugar in

10、cold water.D.sugar being boiled in water.(2).People eat too much candy because（分数：1.00）A.it keeps us warm in cold weather.B.it is easy to make.C.it tastes so good.D.it makes a person strong.(3).When sugar is cooked enough, a bit of which of the following in cold water will make a firm ball?（分数：1.00）

11、A.Hard candy.B.Soft candy.C.Peanut brittle.D.Chewy candy.(4).What will the students do after the talk?（分数：1.00）A.They will taste some candy.B.They will visit a candy factory.C.They will make some candy by themselves.D.The speaker does not tell us.三、BPart C/B(总题数：1，分数：9.00)（分数：9.00）(1).What did the s

12、ailors plan to do to Dionysos?（分数：0.90）填空项 1:_(2).According to Greek legend, what dolphins originally were?（分数：0.90）填空项 1:_(3).On what are dolphins often found in Greek? (Name two things)（分数：0.90）填空项 1:_(4).According to Greek culture, what do dolphins symbolize?（分数：0.90）填空项 1:_(5).What kind of stori

13、es about dolphins and man appear in Greek legend most?（分数：0.90）填空项 1:_(6).What was Arion?（分数：0.90）填空项 1:_(7).What did Arion do to the untrustworthy sailors before he jumped into the sea?（分数：0.90）填空项 1:_(8).What happened to Arion when he jumped into the sea?（分数：0.90）填空项 1:_(9).What do some people obv

14、iously think the Greek stories to be?（分数：0.90）填空项 1:_四、BSection Use o(总题数：1，分数：20.00)The autumn rains had come in with two angry storms, and Lazy River was waking up. In a week schoolU (31) /Ube closed for Easter vacation. Dick and Turkey planned to have a trip to the inland by boat,U (32) /Uthey co

15、llected maps and statistics of the entire inland river system. Water levels down Lazy River; levels down the Namoi; along the Darling and the Murray; all wereU (33) /Utheir fingertips. They were very happy because nowU (34) /U, it appeared, except the joy of voyaging layU (35) /Uthem and the Souther

16、n Ocean or Central Queensland. It was clear to themU (36) /UAustralias early explorers hadU (37) /Ua big mistake toiling overland when theyU (38) /Uhave opened up the continent rapidly and pleasantly with paddle and pole.It was at this stageU (39) /UDicks father put his foot down.“Now listen, you ch

17、ap,“ he said quietly. “It begins to look like a wet autumn and the river is alreadyU (40) /Uwild. A few days rain or a wicked storm or twoU (41) /Uit 11 flood. Im not going toU (42) /Uyour mother worrying herself sick about you, Dick. I know you reU (43) /Uon the trip but floods arentU (44) /Uanyone

18、 can fool with. You can go for a camp if you like, but no furtherU (45) /Usix miles from home; and of course youll campU (46) /Uthe flood level.“It wasU (47) /Ua blow to their inter-state dreams,U (48) /Uthe boys had to concede, on reflection, that what their father said was reasonable.U (49) /Uthey

19、 told their classmate Fred Ingleton at school on Monday about their fathers suggestion, he became suddenly cheerful.“ThatsU (50) /Umy dad said, “he grinned. “Now he might let me go with you. He reckons you made a decent swimmer of me!“（分数：20.00）(1).（分数：1.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_

20、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:_填空项 1:_填空项 1:_填空项 1:_五、BSection Readi(总题数：3，分数：15.00)BText 1/BAnything, if it concerns all nations in the world, we need standards to regulate it.Space flight and air travel would shock time travelers from the mid-19th cent

21、ury. People considered such thing impossible back again. But when it comes to that gem of late 20th-century technology, the Internet, the time travelers might well say: “Been there. Done that.“They have the reasons to say so.Both systems grew out of the cutting-edge science of their time. The telegr

22、aphs land lines, underwater cables, and clicking things reflected the 19th century s research in electromagnetism. The Internet s computers and high-speed connections reflect 20th-century, and material technology.But, while small devices make a global network possible, it takes human cooperation to

23、make it happen. To do so, nations negotiated these standards through ITU the International Telegraph Union a century and a half ago.Consider a couple of technical parallels. Telegrams were sent from one station to the next, where they were received and retransmitted until they reached their destinat

24、ion. Stations along the way were owned by different entities, including national governments. Internet data is sent from one server computer to another that receives and retransmits it until it reaches its destination. Again the computers have a variety of owners. Telegraph messages were encoded in

25、dots and dashes. Internet data is encoded in ones and zeros.Then there s the social impact. The Internet is changing the way we do business and communicate. It makes possible virtual communities for individuals scattered around the planet who share mutual interests. Yet important as this may turn ou

26、t to be, it is affecting a world that was already well connected by radio, television, and other telecommunications. The Associated Press, Reuters, and other news services would have spread the bombing of Yugoslavia quickly without the Internet. In this respect, the global telegraph network was trul

27、y revolutionary. The unprecedented availability of global news in real time gave birth to the Associated Press and Reuters news services. It gave a global perspective to newspapers that had focused on local affairs. A provincialism that geographical isolation had forced on people for millennia was g

28、one forever.As the experience of the past century and a half has shown, the standards set up by ITU are not only necessary, but also workable. Therefore, in todays world, while the Internet is playing an ever more important role in our life, we also need standards, and that is through the same ITU n

29、ow called the International Telecommunication Union.（分数：5.00）(1).The mid-19th century time travelers would not be surprised by todays Internet because（分数：1.00）A.they were totally ignorant of it.B.they would consider such a thing as a dream.C.they had seen similar things before.D.they had thought of

30、it for quite a long time.(2).How many similar points has the writer pointed out between the Internet and telegraph?（分数：1.00）A.At least 5.B.At least 3.C.At least 7.D.At least 8.(3).Among the following similarities, which is NOT mentioned in the passage?（分数：1.00）A.Information is sent from one station

31、server) to another.B.Both need electricity to run.C.Both are the result of people s search of a better way of communication.D.Both send information by something that is not our languages.(4).The author seems to think that（分数：1.00）A.the Internet is totally changing the way we communicate.B.the Inter

32、net can only work on the base of the communication methods already in existenceC.the Internet will never be able to substitute radio, TV, and other telecommunications.D.with the Internet, we can do without radio, TV, and other telecommunications.(5).The theme of the passage is:（分数：1.00）A.The Interne

33、t has ended the geographical isolation in the world.B.Newspapers, TV and radio are as important as the Internet.C.The Internet is something that mid-19th century people would be familiar with.D.We need standards to make the Internet work better.BText 2/BWidespread losses of plant species and varieti

34、es are eroding the foundations of agricultural productivity and threatening other plant-based products used by billions of people worldwide. Plants provide us with irreplaceable resources. The genetic diversity of cultivated plants is essential lo breeding more productive and disease-resistant crop

35、varieties. But with changes in agriculture that diversity is slipping away.Biotechnology is no solution to this loss of genetic diversity. We are increasingly skillful at moving genes around, but only nature can create them. If a plant with a unique genetic trait disappears, there is no way to get i

36、t back.The effects of plant loss extend far beyond agriculture. One in every four medicines prescribed in the U.S. is based on a chemical compound originally found in a plant. Worldwide, some 3.5 billion people in developing countries rely on plant-based medicine for their primary health care.Loss o

37、f habitat from forest clearance for logging and agriculture, pressure from nonnative species and overharvesting have put one out of every eight plant species at risk of extinction. It is not just obscure or seemingly unimportant plants that are in trouble. Those that we rely upon most heavily are al

38、so declining. About two-thirds of all rare and endangered plants in the U.S. are close relatives of cultivated species. Crop breeders often turn to wild relatives of crops for key traits, like disease resistance, when they cannot find those traits in cultivated varieties.Many medicinal plants are in

39、 trouble from overharvesting and destruction of habitat. The bark of the African cherry tree is widely used in Europe for treating prostate disorders, but the medicinal trade has led to severe depletion of the tree where it grows in the highlands of Cameroon and other Central African countries.Since

40、 fewer than 1% of all plant species have been screened for bioactive compounds, every loss of a unique habitat and its species is potentially a loss of future drugs and medicines. Until recently, gene banks, botanical gardens and protected areas have been the first line of defense in maintaining the

41、 diversity of plant life. The world s 1,600 botanical gardens collectively tend tens of thousands of plant species. But these conventional approaches need significantly higher levels of support. Many conservation facilities must scrape by on increasingly scarce funding, particularly those nm by nati

42、onal government.Additional steps must be taken to reform policies and practices that work against plant diversity. Those who garner the benefits of plant diversity, such as agribusiness and pharmaceutical consumers, should acknowledge and support those who maintain it, including indigenous cultures

43、and national gene banks.Through benefit-sharing agreements, international conservation endowments and grass-root development projects attuned to the links between cultural and biological diversity, many options exist for supporting plant diversity rather than diminishing it.（分数：5.00）(1).The second l

44、ine of defense in keeping plant diversity seems to be（分数：1.00）A.to supply more funding to gene banks, botanical gardens and protected areas.B.to stop overharvesting and smuggling.C.to save those seemingly unimportant plants.D.to take further steps to revise policies and practices that hinder the kee

45、ping of plant diversity.(2).Biotechnology cannot help much in stopping the loss of genetic diversity because（分数：1.00）A.it is not widely used by all the countries in the world.B.it cannot make new genes.C.it is only effect in cultivated plants.D.the genes it moves from one plant to another are danger

46、ous to human beings.(3).From the passage we learn that the worlds botanical gardens are a very good way to keep plant diversity, but（分数：1.00）A.there are not enough of them.B.they are mainly run by governments.C.they do not have enough money to run efficiently.D.the plants in them are not disease res

47、istant.(4).What is the attitude of the author toward keeping plant diversity?（分数：1.00）A.Pessimistic.B.Indifferent.C.Optimistic.D.The passage doesnt imply.(5).The main point of the passage is（分数：1.00）A.to try to find out ways to protect plant diversity.B.to call on people to help the developing countries to protect plant diversity.C.to