Our surrounding(周围) is being polluted faster than nature and man’s present efforts can’t prevent it. Time is bringing us more people, and more people will bring us more industry, more cars, larger cities, and the growing use of man-made materials.
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 chief aim. So we are always 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 countryside to cities, eager for the benefit 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 we stopped to ask ourselves where we are going—and why? It makes one think 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 spoken of our modern society.
Man can’t prevent the world from being polluted mainly because        .

A．many man-made materials

B．more cars, trucks and buses

C．more people and more industry

D．more cities

People crowd into the cities because_________.

A．they want very much to find well-paid jobs

B．they eager for the achievement of our modern society

C．they have become tired of their homeland

D．they have a strong wish to become industrial workers

The story about the airline pilot tells us that_________.

A．man knows where the society is going

B．people do not welcome the rapid development of modern society

C．man can do little about the problem of pollution

D．the writer is worried about the future of our society

What does the writer really want to say in this passage?

A．With the development of technology, pollution has become a serious problem.

B．Lower the speed of development to stop pollution.

C．It’s time we did something to reduce pollution.

D．As industry is growing fast, pollution is the natural result.