Question

In the past，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 our environment with dangerous chemicals.If we continue to do this，human life on the 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 cut down more and more trees.We realize that if rivers are polluted with waste from factories，we will die.However，in most countries waste is still put into the rivers or the seas and there are few laws to stop this.We know，too，that if the population of the countries is rising 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 for everyone.Land that is used to grow crops can feed five times more people than land where animals are kept.

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

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

A. things on our planet are getting worse and worse

B. the limited natural resources are being used quickly

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

D. worse environment is endangering the lives of human beings

2.Which of the following statements is NOT true?

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

B. In the past, there were few people who thought about the environment protection.

C. If we keep on cutting down trees，forests will disappear.

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

3.According to the passage，the most important thing 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

D. we will have enough food if the world population rises at the present rate

Answer

1.D

2.A

3.C

【解析】随着人口的增加、自然资源的减少和环境的破坏，人类必须要引起重视、保护自然、保护地球。

1.D

细节理解题。根据第一段We are using up our natural resources too quickly， and at the same time we are polluting our environment with dangerous chemicals. If we continue to do this， human life on the earth will not survive.可知自然资源的减少和环境的破坏，直接威胁着人类的生存。故选D.

2.A

细节理解题。根据文章第三段第一句话If we eat more vegetables and less meat，there will be more food for everyone.可知如果我们多吃蔬菜少吃肉，就会为将来剩下更多的食物。A项If we eat more meat，more food can be saved.是错误的，故选A.

3.C

推理判断题。文章第二段列举了对环境的各种破坏和污染以及给人类的将来带来的危害。由此可知如果我们不解决这些问题，人类就会毁灭自己。故选C.