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Time is bringing us more people, and more people will bring us more industry—larger cities, and the growing use of man-made materials. Our environment is being polluted fast.

What can explain and solve this problem? The fact is that pollution is caused by man—by his desire for a modern way of life. We make “increasing industrialization” our first aim. So we are often ready to offer 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 our modern society. But as our technological achievements have grown in the last twenty years, pollution has become a serious problem.

Isn’t it time that we stopped to ask ourselves where we are going? It makes one think of the story about the airline pilot who told his passengers over the loudspeaker, “I have good news and 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 spoken of our modern society.

1.Why is our environment being polluted fast?

A Because we have more and more industry.

B Because people use too many man-made materials.

C Because the population of the world is going down fast.

D Because we are producing more cars, trucks and buses.

解析：选A。A推理判断题。根据第一段第一、二句Time is bringing us more people, and more people will bring us more industry, larger cities, and the growing use of man-made materials.Our environment is being polluted fast.可知因为人们拥有的工业越来越多，环境污染就变得越来越快。故选A。

2.According to the passage, what does man focus on?

A Health.

B Industrialization.

C Clean air.

D Environment.

解析：选B。B细节理解题。根据第二段第三句We make “increasing industrialization” our first aim.可知人们把“增加工业化”作为主要目标，故选B。

3.Why do people crowd into the cities?

A Because they have become tired of their homeland.

B Because they want very much to find well-paid jobs.

C Because they want to enjoy the achievements of society.

D Because they have a strong wish to become industrial workers.

解析：选C。C细节理解题。根据第二段倒数第二句There is a constant flow of people from the countryside into the cities, eager for the benefits of our modern society.可知越来越多的人从农村涌进城市，渴望从现代社会得到好处，故选C。

4.What’s the bad news according to Paragraph 3?

A They were making rapid progress.

B The pilot left the airplane alone.

C The pilot didn’t know where he was.

D The pilot didn’t know where they were going.

解析：选D。D细节理解题。根据第三段倒数第二句The bad news is that we’re lost and don’t know where we’re going.可知坏消息是他们迷路了，不知道正去哪里，故选D。

5.What is the writer’s purpose of writing the passage?

A To advise achieving the balance between development and environment.

B To explain to the world “ every coin has two sides”.

C To make us know how serious pollution is.

D To tell us why pollution is the natural result.

解析：选A。A主旨大意题。工业化给人类带来利益的同时也造成了环境污染，本文是想告诫人类需寻求环境和发展的平衡，故选A。