(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.
小題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
小題2:The underlined word “valuable ” means _______.         .
A．much and saltB．fresh and enough
C．dear and usefulD．clean and helpful
小題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)
小題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.
小題5: What is the best title for this passage?
A．The Importance of WaterB．The World’s Water Problem
C．The Thirsty WorldD．Fresh Water and Sea Water

小題1:B
小題2:C
小題3:C
小題4:A
小題5:B

試題分析：這篇短文主要給我們講述的是現(xiàn)在我們的地球上嚴重缺水，雖然地球上70%的面積都是水，但是大約97%的都是海水，人類可以飲用的水只有3%。而且，更糟糕的是，有些水還被污染了。因此我們必須做點事情來解決這個問題。
小題1:細節(jié)理解題。根據(jù)短文第一段中的內容可知，雖然地球上70%的面積都是水，但是大約97%的都是海水，人類可以飲用的水只有3%。而且，更糟糕的是，有些水還被污染了。因此作者說地球是非常需要水的，故選B。
小題2:詞義猜測題。根據(jù)這個單詞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,這里作者告訴我們，我們必須學會怎樣停止浪費我們珍貴的水資源。valuable是一個形容詞，意思是珍貴的，有價值的。因此C選項中珍貴的，有用的這個意思最為恰當。故選C。
小題3:推理判斷題。根據(jù)短文第三段中one of the first step is to develop ways of reusing it可知，作者說我們應該循環(huán)利用水資源，故（d）是正確的；根據(jù)all we’d have to do to make use of sea water in the world is to remove the salt可知（a）是正確的；（c）說我們應該盡可能地節(jié)約水，這也是正確的。故選C。
小題4:推理判斷題。根據(jù)短文的內容可知，地球上70%的面積都是水，而且絕大部分是海水，不能直接飲用。因此如果我們可以去除海水里的鹽分，將其變成可以飲用的水，這將是最好的一個辦法。但是這樣做非常的難。故選A。
小題5:主旨大意題。這篇短文主要給我們講述的是現(xiàn)在我們的地球上嚴重缺水，雖然地球上70%的面積都是水，但是大約97%的都是海水，人類可以飲用的水只有3%。而且，更糟糕的是，有些水還被污染了。因此我們必須做點事情來解決這個問題。故B選項世界上的水資源問題這個題目最為合適。故選B。
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