Question

【题目】A

The world is not hungry, but it is thirsty. It seems strange that nearly 3/4 of the earth is covered with water while we say we are short of(短缺) water. Why? Because about 97% of water on the earth is sea water which we can’t drink or use for watering plants directly. Man can only drink and use the 3% — the water that comes from rivers and lakes. And we can’t even use all of that, because some of it has been polluted.

Now more water is needed. The problem is: Can we avoid a serious water shortage (短缺) later on?

First we should all learn how to save water. Secondly, we should find out the ways to reuse it. Scientists have always been making studies in the field. Today, in most large cities water is used only once and then runs to the sea or rivers. But it can be used again. Even if every large city reused its water, still there would not be enough. What could people turn to next?

The sea seems to have the best answer. There is a lot of water in the sea. All that needs to be done is to get the salt out of the sea water. This is expensive, but it’s already used in many parts of the world. Scientists are trying to find a cheaper way of doing it. So you see, if we can find a way out, we’ll be in no danger of drying up.

【1】 The world is thirsty because _________________.

A. 3/4 of earth is covered with water

B. we have enough sea water to use directly

C. we haven’t used all the water in rivers and lakes

D. About 97% of water on the earth can’t be drunk or used for watering plants directly

【2】What does the underlined word ＂reuse＂ mean?

A. 再利用 B. 改造 C. 替换 D. 启用

【3】 From the passage we learn _________________.

A. if every city reused its water, we’ll be in no danger of drying up

B. man can only drink and use about 25% of water on the earth

C. today in most large cities water is used only once

D. water can be used only once

【4】 To avoid the serious water shortage, which of the following is the most important?

A. Save water and try to make good use of the water in rivers and lakes.

B. Don’t pollute water and keep all rivers and lakes clean.

C. Make dirty water clean and then reuse it.

D. Try to find a cheaper way to get the salt out of the sea water.

【5】The name of the passage would be _________________.

A. The Sea Water B. How to Save Water

C. The Thirsty World D. The Polluted Water

Answer 1

【答案】

【1】D

【2】A

【3】C

【4】D

【5】C

【解析】

【文章大意】本文介绍了我们地球上非常缺水。为了避免这个问题，我们应该学会节约用水，循环利用现有的水资源。最重要的是要想办法提取海水里的盐，从而获得更多的淡水资源。

【1】细节理解题。根据第一段的Because about 97% of water on the earth is sea water which we can’t drink or use for watering plants directly.可知因为地球上97%的水是海水，不能直接饮用或用于浇灌植物，所以地球上缺水，故选D。

【2】词义猜测题。根据第三段的But it can be used again.可知城市里的水可以被再利用，故选A。

【3】细节理解题。根据第三段的Today, in most large cities water is used only once and then runs to the sea or rivers. But it can be used again.可知城市里的水只被使用一次，故选C。

【4】细节理解题。根据最后一段的 All that needs to be done is to get the salt out of the sea water.可知要避免严重缺水，最重要的是把盐从海水里提取出来，故选D。

【5】标题归纳题。根据第二段的Now more water is needed. The problem is: Can we avoid a serious water shortage (短缺) later on?可知本文主要介绍全球严重缺水的情况及解决办法。故选C。