单选题
The air is polluted. The earth is poisoned. Water is unsafe to drink and garbage is burying the civilization that produced it. Our environment is being polluted faster than nature and man's 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 motorcars, larger cities, and the growing use of man-made materials. This is happening not only in advanced societies but also among the developing nations as they become industrialized. Now many scientists are worrying about the possibility of world pollution. Some experts declare that the balance of nature is being so upset that the very survival of human beings in danger. What can solve this problem? The fact is that pollution is caused by man--by his greed and his modern way of life. We make "increasing industrialization(工业化)" 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 country 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 pollution has became a serious problem. Isn't it the time we should stop and ask ourselves where we are going--and why? It reminds one of the stories about the airline pilot who told his passengers over the loud speakers: "I've some good news and some bad news. The good new 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.
单选题
At present, man's efforts ______. A. can't stop our environment from being polluted B. can speed up the development of industry C. have failed to upset the balance of nature D. have succeeded in eliminating pollution
【正确答案】
A
【答案解析】第二段第一句指出，环境污染越来越快，自然和人类的努力不能阻止它。也就是说，人类无法阻止环境被污染。A项表达了此意。B项说“人类在加速工业化进程”，理论上来说是对的，但不是本文的主题，也不符题意。第三段指出，the balance of nature is being so upset，可见C说法不对，同样D也不对。因此A为正确答案。
单选题
The writer thinks that the major cause of pollution is ______. A. increasing industrialization B. the modern way of life C. man D. none of the above
单选题
The writer may probably believe that ______. A. few people have realized how serious the problem of pollution is B. the problem of pollution has not yet become a main concern C. the problem is not so serious that it does not require an immediate solution D. people are so eager for the benefits of modern society that they pay little attention to the problem
【正确答案】
D
【答案解析】第三段第一、二句指出，现在许多科学家正担心全球污染。一些专家宣布自然平衡正遭破坏，以致人的生存受到威胁。可见，A和B项不对。文章第四段末尾指出，pollution has become a serious problem．同样C也不对。采用排除法，D为正确答案。
单选题
People flow from the countryside into cities. This happens ______. A. sometimes B. all the time C. frequently D. now and then
【正确答案】
B
【答案解析】文章第四段指出，There is a constant flow of people from the country into the cities，其中用了constant一词，意为“不断的，连续发生的”，因此 B．all the time是正确答案。
单选题
The main idea of this passage is that ______. A. the use of man-made materials has had harmful effects on the modern civilization B. pollution has become a more and more serious problem that is threatening the survival of humanity C. our technological achievements have grown very rapidly in the last twenty years D. we should not make increasing industrialization our chief aim