大学英语一级水平测试-14及答案解析.doc
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1、大学英语一级水平测试-14 及答案解析(总分:713.00,做题时间:90 分钟)一、BPart Writing(总题数:1,分数:106.00)1.你在大学期间学了些什么,做了些什么2大学生活给你带来了怎样的变化My College Life_(分数:106.00)_二、BPart Reading (总题数:1,分数:70.00)Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1.For ques
2、tions 1 - 7, markY (for YES) if the statement agrees with the information given in thepassage;N (for NO) if the statement contradicts the information given in thepassage;NG (for NOT GIVEN) if the information is not given in the passage.For questions 8 - 10, complete the sentences with the informatio
3、n given in the passage.Before humans came on the scene, the world changed only slowly. The climate warmed and cooled, new plants and animals evolved (进化) and became extinct in their turn, and sea levels rose and fell over periods of thousands, if not millions, of years. But during the last two thous
4、and years there have been very great changes. Forests have disappeared, river courses have been changed, and large areas of natural vegetation have turned into farmland and cities. There are serious problems for the survival of the human race.The Greenhouse EffectIt may be cold outside, but on a sun
5、ny day it can be hot in a greenhouse. Some of the gases in the Earths atmosphere act like the glass in a greenhouse. Radiant heat from the Sun can pass through them to warm the Earth below. But the ground also loses heat by radiation (辐射). The “greenhouse gases“ send some of this heat back towards t
6、he Earths surface and help to keep it warm. However, by burning fuels and forests, we are putting larger and larger amounts of these greenhouse gases into the atmosphere. As a result, the Earth is slowly warming up. This is called the greenhouse effect.The greenhouse effect could cause dry weather i
7、n some parts of the world. If the polar icecaps melt and sea levels rise, many areas of the world will be flooded. Scientists believe that the only way to slow the greenhouse effect is for us to produce less of the gases which cause it.Air Pollution and Acid RainPollution is caused when what we do d
8、amages our surroundings. Factories, power stations and motor vehicles send waste gases and soot (烤烟) into the air. The polluted air damages peoples lungs. Some petrol had lead in it. The lead comes out in car exhaust fumes and it can cause brain damage in children.The waste gases coming from burning
9、 coal, oil and petrol include sulphur (硫黄) dioxide and nitrogen (氮) dioxide. These gases may dissolve (溶解) in water in the atmosphere to form weak acids. They later fall to the Earth as acid rain, sometimes hundreds of kilometers from where they were formed. Much of the acid rain in Canada is caused
10、 by smoke from factories and power stations in the USA; the acid rain in Scandinavia may come from Britain.Acid rain attacks trees and other plants, and kills the fish and water animals living in lakes and rivers. Acid rain and polluted air also damage the bricks and stonework of buildings, and corr
11、ode (Neck) the metalwork of steel bridges and railings.Acid rain is difficult to control because it spreads so far. And the ways of avoiding acid rain are all expensive.The Ozone HoleOzone (臭氧) is a gas which forms a layer around the planet at about 20 to 50 km above the Earths surface. The ozone la
12、yer prevents the Suns dangerous ultraviolet radiation reaching the Earth where it would damage our skin and cause cancers. Many scientists are worried that the ozone layer is being destroyed by the CFCs which are used in refrigerators and freezers. These chemicals are also important greenhouse gases
13、. At certain times of the year the ozone layer becomes extremely thin near the north and south poles. Already skin cancers are increasing in Australia.Many countries are trying to stop the production of CFCs and to find other chemicals to do the same thing.Radioactive WasteNuclear power stations pro
14、duce waste which is radioactive. Some of this waste is released by the power stations into the air or water; some is stored. It can be carried long distances by wind or by water. Many scientists worry about the long-term effects of this type of pollution on humans and wildlife.(分数:70.00)(1).The gree
15、nhouse effect is caused by radiant heat from the Sun, which passes through the glasses and thus warms the Earth below.(分数:7.00)填空项 1:_(2).One way to solve the problem of the greenhouse effect is to use nuclear power to replace traditional fuels so that less gas will be produced.(分数:7.00)填空项 1:_(3).A
16、ir pollution is caused by waste gases and soot sent into the air and the lead coming out in car exhaust.(分数:7.00)填空项 1:_(4).Air pollution leads to lung and brain damage in animals and kills plants.(分数:7.00)填空项 1:_(5).Acid rain may fall in some places very far away from where it is formed.(分数:7.00)填空
17、项 1:_(6).The thin ozone layer near the north and south poles is caused by CFCs, a kind of greenhouse effect gases.(分数:7.00)填空项 1:_(7).Scientists are having a hot discussion on how to solve the problems of radioactive waste because people will be largely dependent upon nuclear power in the future.(分数
18、:7.00)填空项 1:_(8).The greenhouse effect will cause _.(分数:7.00)填空项 1:_(9).If the ultraviolet radiation from the sun arrives at the Earth, it would _.(分数:7.00)填空项 1:_(10).According to the author, the reason for the environmental changes and problems is _.(分数:7.00)填空项 1:_三、BPart Listenin(总题数:0,分数:0.00)四
19、、BSection A/B(总题数:4,分数:105.00)Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of 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 the
20、re 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. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.(分数:35.00)(1). A. 6:00. B. 7:00. C. 6:30. D. 6:15.(分数:7.00)A.B.C.D.(2). A. Te
21、acher and student. B. Doctor and patient. C. Shop assistant and customer. D. Husband and wife.(分数:7.00)A.B.C.D.(3). A. Airport. B. Bedroom. C. Restaurant. D. Hospital.(分数:7.00)A.B.C.D.(4). A. 5 dollars. B. 10 dollars. C. 7 dollars. D. 2 dollars.(分数:7.00)A.B.C.D.(5). A. The woman was happy to lend th
22、e man her washing machine. B. The woman refused to lend the man her washing machine. C. The man wanted to buy a washing machine for the woman. D. The man was angry because the washing machine had broken down.(分数:7.00)A.B.C.D.(分数:21.00)(1). A. To attend the party. B. To visit his aunt. C. To buy the
23、birthday gift. D. To visit his uncle.(分数:7.00)A.B.C.D.(2). A. Because it is the best restaurant. B. Because he was told Garys House was not good. C. Because Garys House was closed. D. Because it is on the Main Street.(分数:7.00)A.B.C.D.(3). A. She cant afford the money. B. She is not interested in the
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- 大学 英语 一级 水平 测试 14 答案 解析 DOC
