Question

The world is not only hungry, but it is also thirsty for water. This may seem strange to you, since nearly 70% of the earth’s surface is covered with water. But about 97% of that is sea water or salt water. Man can only drink and use the other 3% fresh water from rivers, lakes，underground and other sources. And we can not even use all of that. Even worse, some of it has been made dirty.

However, as things stand today, this fresh water is still enough for us. But our need for water is becoming larger and larger quickly, almost day by day. We should take steps to do with this problem now and in this way we can get away from a serious world-wide water shortage(缺少)later on.

We all have to learn how to stop wasting our valuable water. One of the first steps is to develop ways of reusing it. Today in most large cities, water is used only once and then sent out into a sewer system (下水道). From there it returns to sea or runs into underground places.

But even if every large city reused its water, we still would not have enough. All we’d have to do to make use of sea water in the world is to remove the salt. If we take these steps we’ll be in no danger of drying up.

1. The world is thirsty for water because_____________.

A. man hasn’t got enough food to eat 

B. we haven't got enough fresh water

C. only 70% of the earth's surface is water  

D. more water is sent into sewer systems

2.The underlined word valuable means _____________.

A. much and salty    B. fresh and enough

C. dear and useful   D. clean and helpful

3.What should we do if we want to have enough fresh water?

a. Make full use of the sea water.

b. Carry salt water into lakes or rivers.

c. Try to save the fresh water as much as possible.

d. Do our best to use the water again.

e. Drink and use a11 the water on the earth's surface.

A. c and e      B. a and d       C. a, c and d    D. b, d and e

4.The best but the most difficult way to solve the water problem of the world is to ___________.

A. remove the salt from sea water     B. make the water in cities clean

C. take water from underground       D. make the need for water smaller

5.What's the best title for this passage?

A. The Importance of the Water.       B. Fresh Water and Sea Water.

C. The Thirsty World.                 D. The World's Water Problem.

Answer

1.B

2.C

3.C

4.A

5.D

【解析】

试题分析：短文介绍了水资源的保护问题。想要拥有充足的淡水，要采取以下措施：尽可能节约淡水；尽最大努力把淡水再利用；充分利用海水，把海水转化成淡水。如果我们采取这些步骤，我们就不会有干涸的危险。

1.B细节理解题。从第一段的句子：Man can only drink and use the other 3% of fresh water from rivers, lakes, underground and so on. And we can not even use all of that because some of it has been made dirty.可知我们缺少的是纯净水。故答案选B。

2.C词意猜测题。结合上文中的句子“We should take steps to do with this problem now and in this way we can get away from a serious world-wide water shortage(缺少)later on.” 我们应该采取措施来处理这个问题，这样我们可以摆脱严重的全球水资源短缺。此句是告诫我们要停止浪费水，综合推测，可知划线部分的意思是“宝贵的”，故答案为C。

3.C细节理解题。根据短文中的介绍可知，想要拥有充足的淡水，要采取以下措施：尽可能节约淡水；尽最大努力把淡水再利用；充分利用海水，把海水转化成淡水。故答案为C。

4.A从最后一段的句子“All we’d have to do to make use of sea water in the world is to remove the salt.”可知我们可以去掉海水里面的盐来利用海水。可知答案为A。

5.D标题归纳题：从第一段的句子“The world is not only hungry but also thirsty for water.”可知这篇文章讲的是水的问题。选D

考点：健康环保类短文阅读。