Question

(C)The earth is not only, but also thirsty for water. This may seem strange to you. because nearly 70% of the earth’s surface（表面）is covered with water. But about 97% of that is sea water, or salt water. Man can only use the other 3%—the fresh water from rivers, lakes, and other sources. And we can’t even use all of that, because some of it is in the form of icebergs and glaciers（冰川）. Even worse, some of it has been polluted.

However, as things stand today, the 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 later on.

We all have to learn how to stop wasting our valuable water, one of the first step 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 (地下)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.

1. The earth is thirsty for water because_______ .

A. man has not enough food to eat.

B. we haven’t had enough fresh water

C. only 70% of the earth’s surface is covered with water.

D. more water is sent into the sewer system

2.The underlined word “valuable ” means _______.         .

A. much and salt     B. fresh and enough     

C. dear and useful    D. clean and helpful

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

(a) make good use of the sea water.

(b) carry salt water into lakes and 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 all the water on the earth’s surface

A. (c)and(e)        B. (a) and (b)    

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 the sea water     

B. make the water in the cities clean.

C. take the water from underground      

D. make the need for the water smaller.

5. What is the best title for this passage?

A. The Importance of Water        B. The World’s Water Problem

C. The Thirsty World               D. Fresh Water and Sea Water

Answer

1.B

2.C

3.C

4.A

5.B

【解析】

试题分析：这篇短文主要给我们讲述的是现在我们的地球上严重缺水，虽然地球上70%的面积都是水，但是大约97%的都是海水，人类可以饮用的水只有3%。而且，更糟糕的是，有些水还被污染了。因此我们必须做点事情来解决这个问题。

1.细节理解题。根据短文第一段中的内容可知，虽然地球上70%的面积都是水，但是大约97%的都是海水，人类可以饮用的水只有3%。而且，更糟糕的是，有些水还被污染了。因此作者说地球是非常需要水的，故选B。

2.词义猜测题。根据这个单词所在的句子以及上下文的意思可知，We all have to learn how to stop wasting our valuable water,这里作者告诉我们，我们必须学会怎样停止浪费我们珍贵的水资源。valuable是一个形容词，意思是珍贵的，有价值的。因此C选项中珍贵的，有用的这个意思最为恰当。故选C。

3.推理判断题。根据短文第三段中one of the first step is to develop ways of reusing it可知，作者说我们应该循环利用水资源，故（d）是正确的；根据all we’d have to do to make use of sea water in the world is to remove the salt可知（a）是正确的；（c）说我们应该尽可能地节约水，这也是正确的。故选C。

4.推理判断题。根据短文的内容可知，地球上70%的面积都是水，而且绝大部分是海水，不能直接饮用。因此如果我们可以去除海水里的盐分，将其变成可以饮用的水，这将是最好的一个办法。但是这样做非常的难。故选A。

5.主旨大意题。这篇短文主要给我们讲述的是现在我们的地球上严重缺水，虽然地球上70%的面积都是水，但是大约97%的都是海水，人类可以饮用的水只有3%。而且，更糟糕的是，有些水还被污染了。因此我们必须做点事情来解决这个问题。故B选项世界上的水资源问题这个题目最为合适。故选B。

考点：环保类短文阅读。