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浙江省2002年7月高等教育自学考试英语(二)试题
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增大字体 It is clear that some chemicals can damage the health of animals and humans.However,this is not the only problem that can be caused by the careless use of chemicals.Chemicals can also disturb the ecological(生态的) balance of the environment.If the ecological balance is disturbed,the consequences can be extremely serious.
The history of DDT illustrates the problem.DDT,a chemical which kills insects,at first,seemed to be a perfect answer to many problems.It would control insects that caused dangerous diseases,as well as insects that caused billions of dollars of damage to crops every year.Governments permitted and even encouraged the use of DDT.Farmers in many countries began to spray it on their crops. The immediate results were good:Damage to crops went down,and profits went up.However,the chemical had effects which the scientists did not predict.First,it also killed insects which were the natural enemies of the harmful insects and which were therefore beneficial to farmers.Second,and perhaps worse,DDT did not kill every harmful insect.A few insects had natural resistance to the chemical.They survived and multiplied.In a few years there were large numbers of insects which were not affected by DDT,and there were fewer insects which could act as natural controls on these new “super-insects".Finally,it became clear that DDT was not solving the insect problem.In fact,it was making the problem worse.It then became necessary to find a second cure for the effects of the first!
25.What is the purpose of the passage?
A. To tell that DDT can not solve the insect problem.
B. To compare the effects of DDT with those of other cures.
C. To argue that the ecological balance can be damaged by chemicals.
D. To show that some chemicals can damage the health of humans and animals.
26.According to the author,what is one of the problems with DDT?
A. It also killed insects that helped farmers.
B. It could kill most of the harmful insects.
C. It caused a decrease in domestic animals.
D. It made some farmers suffer a disease which could not be cured.
27.If a farmer used DDT today,in a few years _______.
A. he would have no problems with harmful insects
B. insects would be an even greater problem for him
C. his situation would not be quite different
D. he would be in a very dangerous situation
Passage Three
Questions 28 to 30 are based on the following passage.
The standard of living of any country means the average person's share of the goods and services which the country produces.A country's standard of living,therefore,depends mainly on its capacity to produce wealth.“Wealth" in this sense is not money,for we do not live on money but on things that money can buy :“goods" such as food and clothing,and “services" such as transport and entertainment.
A country's capacity to produce wealth depends upon many factors,most of which have an effect on one another.Wealth depends to a great extent(在很大程度上) upon a country's natural resources,such as coal,gold,and other minerals,water supply and so on.Next to natural resources comes the ability to put them to use.China is perhaps as well off as the U.S.A.in natural resources,but suffered for many years from various wars,and for this and other reasons was unable to develop her resources.Another important factor is the technical efficiency of a country's people.Old countries that have trained numerous skilled craftsmen and technicians are better placed to produce wealth than countries whose workers are largely unskilled.Wealth also produces wealth.As a country becomes wealthier,its people have a large amount of saving,and can put their savings into factories and machines which will help workers to produce more goods in their working day.
28.A country's wealth depends upon _______.
A. its standard of living
B. its money
C. its ability to provide goods and services
D. its ability to provide transport and entertainment
29.According to the passage,one might infer that a peaceful country _____.
A. will produce more wealth than any other country
B. will produce less wealth than any other country
C. will have a higher standard of living than those countries with rich natural resources
D. will have more wealth than those countries with equal natural resources but less order
30.The purpose of the second paragraph is _______.
A. to explain wealth
B. to give advice
C. to tell some factors that contribute to wealth
D. to describe how a country develops its capacity to produce wealth转贴于：自学考试_博学在线
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Ⅳ.Cloze Test(10 points,1 point for each)
下列短文中有十个空白，每个空白有四个选项。根据上下文要求选出最佳答案，并写在答题纸相应的位置上。
I do my best to take care of my health,and my family's,but it's not always easy.My wife and I share the cooking and shopping,and I'm a bit 31 careful than she is about buying foods
32 don't have colourings or other 33 of chemicals on.I know you can't avoid things like that entirely,but I 34 try to do my best.I think that chemicals 35 more health problems than most people think they do.
The whole family gets some kind of exercise: 36 the kids are very keen swimmers,my wife runs 37 and I play tennis three times a week.Actually I think we are healthier now than when we 38 younger;we began 39 more attention to food when the kids were young,and wanted to give them a good 40 by keeping fit ourselves.
31.A. less B. even C. more D. much
32.A. whether they B. that C. when they D. they
33.A. type B. kind C. sorts D. ratings
34.A. really B. never C. occasionally D. seldom
35.A. give B. cause C. do D. put
36.A. either B. any C. neither D. both
37.A. individually B. relatively C. steadily D. regularly
38.A. are B. were C. have been D. had been
39.A. paying B. taking C. showing D. carrying
40.A. sample B. case C. example D. instance
Ⅴ
