[外语类试卷]大学英语四级模拟试卷878及答案与解析.doc
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1、大学英语四级模拟试卷 878及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are allowed 30 minutes to write a composition entitled On Power Failure. You should write at least 120 words following the outline given below in Chinese. 1. 很多城市缺电现象 2. 分析原因 3. 提出建议 二、 Part II Reading Comprehension (Skimming a
2、nd 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 contradict
3、s the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 The Illusion of Progress by Lester R. Brown Lester R. Brown is a senior researcher at the Worldwatch Institute, which every year since 1984 has produced a volume about the State of the World.
4、 Each year, this book updates information on poverty, overpopulation, air and water quality, agricultural land, and other world conditions. A respected sourcebook, it is consulted by the United Nations and other organizations concerned about protecting our world environment. The following reading is
5、 an excerpt from the first chapter of State of the World, 1992. For about four-fifths of human beings born since World War , life has seemed to be a time of continuous economic progress. The global economic production is about five times larger than it was in 1950. The increase in economic growth ev
6、ery ten years has been similar to the increase from the beginning of civilization until 1950. World food production has also increased a great deal. This was a result of increased demand caused by population growth and rising wealth, and was made possible by modern technology. The worlds grain harve
7、st is 2.6 times larger than it was in 1950. No other generation of human beings has seen such large gains in production. Such gains would seem to be a cause for celebration, but instead there is a sense of illusion, a feeling that not so much progress has been made. One reason for this is that our s
8、ystem of national accounting used to measure progress considers the loss in value of factories and equipment, but does not consider the using up of natural resources. Since mid-century, the world has lost nearly one-fifth of the topsoil from its croplands, a fifth of its tropical rain forests, and t
9、ens of thousands of its plant and animal species. During this same period, atmospheric carbon dioxide (CO2) levels have increased by 13 percent, causing hotter summers. The protective ozone (臭氧 ) layer in the stratosphere has decreased by 2 percent worldwide and far more over Antarctica. Dead lakes
10、and dying forests have resulted from industrialization. Historians in the twenty-first century may admire our economic performance but regret the environmental consequences. Throughout our lifetimes, economic trends have shaped environmental trends, often affecting the earths natural resources and s
11、ystems in ways not clear at the time. Now, as we enter the nineties, the reverse is also beginning to happen: environmental trends are beginning to shape economic trends. Environmental damage to the planet is beginning to affect harvests of food. The effects of losing 24 billion tons of topsoil each
12、 year are being felt in some of the worlds major food-producing regions. Recent studies indicate that air pollution is damaging crops in both auto-centered economies of the West and coal-burning economies of the East.Meteorologists cannot yet be certain, but the hotter summers and decreased rainfall
13、 of the eighties may be early indications of the greenhouse effect. Environmental damage undoubtedly was a cause of slower growth in world grain production during the eighties. The doubling of grain output mentioned above occurred between 1950 and 1984; since then, there has been no significant incr
14、ease. The 1989 estimated harvest (1.67 billion tons) was up only i percent from that of 1984, which means that grain output per person is down nearly 7 percent. Large amounts of previously stored food have. been used up. In some areas, people have consumed less food. Although five years is not long
15、enough to indicate a long-term trend, this does show that the worlds farmers are finding it more difficult to keep up with growth in population. Nowhere is this clearer than in Africa, where the combination of high population growth and damage to croplands is decreasing grain production per person.
16、A drop of 20 percent in production from 1967 has changed the continent into a grain importer, caused an increase in the regions foreign debt, and left millions of Africans hungry and physically weakened. In a 1991 report, World Bank economists described the continuation of recent trends as a “nightm
17、are scenario.“ In both Africa and Latin America, food consumption per person is lower today than it was when the decade began. Infant death rates a good indicator of malnutrition appear to have increased in many countries in Africa and. Latin America, reversing the previous trend of decrease. Nation
18、s in which there are data to indicate this rise in infant death rate include Brazil, the Dominican Republic, El Salvador, Ghana, Madagascar, Mexico, Peru, Uruguay, and Zambia. 2 This essay is taken from the State of the World, a sourcebook published by the United Nations, which updates information e
19、ach year on such world conditions as poverty, overpopulation, air and water quality and agricultural land. ( A) Y ( B) N ( C) NG 3 The latter part of the 20th century has seen a continuous increase in economic growth, but such achievements, according to L.R. Brown, do not necessarily make up a cause
20、 for celebration. ( A) Y ( B) N ( C) NG 4 The main measure of economic growth is faulty in that our system of national accounting includes only loss in value of factories and equipment but does not consider loss of natural resources as a negative factor. ( A) Y ( B) N ( C) NG 5 With an increase in w
21、orld food production, people in Africa and Latin America today eat more food than they did a decade ago. ( A) Y ( B) N ( C) NG 6 Scientists in general believe that croplands, forests, and grasslands will supply enough raw materials, food, and fuel to guarantee further economic growth in the years to
22、 come. ( A) Y ( B) N ( C) NG 7 According to our current way of accounting, countries that over-cut forests are doing better economically than countries that keep the same number of trees. ( A) Y ( B) N ( C) NG 8 Since the early 1990s environmental trends have started to affect our economic trends, w
23、ith the effects of losing large amounts of topsoil being felt. ( A) Y ( B) N ( C) NG 9 Meteorologists suspect that the hotter summers and decreased rainfall of the 1980s might be _. 10 This essay is mainly concerned with _. 11 By the “Illusion of Progress“ the author means that _. Section A Directio
24、ns: 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 there will be a pause. During the pause,
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- 外语类 试卷 大学 英语四 模拟 878 答案 解析 DOC
