阅读理解 The Environment and Humanity Man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be unlimited. Today things are 题目和参考答案——青夏教育精英家教网—

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The Environment and Humanity

　　Man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be unlimited.

　　Today things are different. The world has become too crowded. We are using up our natural resources too quickly, and at the same time we are polluting out environment with dangerous chemicals. If we continue to do this, human life on earth will not survive.

　　Everyone realizes today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing methods, more and more fish are caught. We know that if too many trees are cut down, forests will disappear and nothing will grow on the land. Yet, we continue to use bigger and more powerful machines to cut down more and more trees.

　　We realize that if rivers are polluted with waste products from factories, we will die. However, in most countries waste products are still put into rivers or into the sea, and there are few laws to stop this.

　　We know, too, that if the population of the world countries is to rise at the present rate, in a few years, there will not be enough food. What can we do to solve these problems?

If we eat more vegetables and less meat, there will be more food available for everyone. Land that is used to grow crops feeds five times more people than land where animals are kept.

　　Our natural resources will last longer if we learn to recycle them.

　　The world population will not rise so quickly if people use modern methods of birth control.

　　Finally, if we educate people to think about the problems we shall have a better and clean planet in the future.

（1）Today, we have to think about the protection of our environment because ________.

[　　]

A. things are getting worse and worse

B. the limited natural resources are being used up quickly

C. the environment is continuing to be polluted by too much waste and poison

D. if we care nothing about the protection of the environment, no human beings will exist on earth

（2）If we ________, the natural resources can be used longer.

[　　]

A. use them as little as possible

B. use them properly and pay attention to the recycle

C. make full use of them

D. learn to recycle them

（3）Which of the following statements is NOT true?

[　　]

A. If we eat more vegetables, more food can be saved.

B. In the past, there was no need for us to think about the environmental protection.

C. If we keep on cutting down trees, forests will disappear, and nothing will grow on land.

D. We should not take more and more fish out of the sea, or there will soon be no fish left.

（4）In order to slow down the increase of the world population, _______.

[　　]

A. we should encourage young people to marry later

B. we should encourage the married to use modern methods of birth control

C. we should let the people have more education

D. both A and B

（5）According to the passage, the most important things we must understand is that _______.

[　　]

A. we should keep our environment from being polluted

B. we must make enough laws to protect our natural resources

C. man will destroy himself if he doesn't solve the problems mentioned in the passage

D. we will have not enough food if the population of the world countries rises at the present

答案：D;B;D;B;C
解析：

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