The air is polluted. The earth is poisoned. Water is unsafe to drink and rubbish is burying the civilization that produced it.

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问题     The air is polluted. The earth is poisoned. Water is unsafe to drink and rubbish is burying the civilization that produced it.
    Our environment is being contaminated faster than nature and man’s present efforts can prevent it. Time is bringing us more people, and more people will bring us more industry. More people and more industry will bring us more motor vehicles, larger cities, and the growing use of man-made materials. This is happening not only in advanced societies but among the developing nations as they become industrialized. Pollution is, in a sense, exported.
    Now many scientists are expressing fears about the possibility of world pollution. Some experts declare that the balance of nature is being so upset that the very survival of humanity is in danger.
    What can explain and solve this growing problem? The fact is that pollution is caused by man—by his greed and his modern way of life. We make "increasing industrialization" our chief aim. For its sake we are willing to sacrifice everything: clean air, pure water, good food, our health and the future of our children. There is a constant flow of people from the countryside into the cities, eager for the benefits of modern society. But as our technological achievements have grown in the last twenty years, so in that time has pollution become a serious problem. The connection is clear.
    Isn’t it time we stopped to ask ourselves where we are going—and why? It reminds one of the story about the airline pilot who told his passengers over the loudspeaker, "I’ve some good news and some bad news. The good news is that we’re making rapid progress at 530 miles per hour. The bad news is that we’re lost and don’t know where we’re going. " The sad fact is that this becomes a true story when applied to our modern society.
Questions:
Why do people constantly move from the countryside into the cities?

选项 A、Because the earth in the countryside was polluted.
B、Because there are more jobs provided in the cities.
C、Because it is easier to make a living in the cities.
D、Because they are eager to get the benefits of modern cities.

答案D

解析 第4题是一个具体细节性问题,要求给出人们不断从乡村搬进城市的原因。我们可以利用跳跃式阅读和查阅式阅读方法,在第四段第五句中找到与问题题干相关的信息.仔细阅读并分析一下上下文,我们可以看出人们不断从乡村涌入城市的目的是为了追求现代社会所提供的种种好处和便利。因此本题的正确答案是D。
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