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  3. The world is not only hungry, it is also thirsty for water. This may seem strange to you, since nearly 75% of the earth’s surfac

The world is not only hungry, it is also thirsty for water. This may seem strange to you, since nearly 75% of the earth’s surfac

admin2009-08-17  38
问题 The world is not only hungry, it is also thirsty for water. This may seem strange to you, since nearly 75% of the earth’s surface is covered with water. But about 97% of this huge (巨大的) amount (总计，等于) is seawater, or salt (盐，腌) water. Man can only drink and use the other 3% - the fresh (新的，清新的) water that comes from rivers, lakes, underground, and other sources. And we cannot even use all of that, because some of it is in the form of icebergs  and glaciers (冰河). Even worse (更坏的，更差的), some of it has been polluted.
However (然面，不管怎样), as things stand today, this small amount  of fresh water, which is constantly being replaced by rainfall (降雨量), is still enough for us. But our need for water is increasing (日益地，愈加地) rapidly -almost day by day. Only if we take steps to deal with this problem now can we avoid (避开，避免) a severe (严重的，激烈的) worldwide (遍及地球的) water shortage (短缺) later (后来，过一会儿) on. A limited (有限的) water supply would have a bad effect (结果，效果) on agriculture and industry (工业，产业).
We all have to learn how to stop wasting our precious (珍贵的) water. One of the first steps we should take is to develop ways of reusing it. Experiments have already been done in this field, but only on a small scale (刻度，天平). The systems that have been worked out resemble (相似) those used in spacecraft (宇宙飞船).
选项 A、we are now facing a serious problem of worldwide water shortage
B、people all over the world are thirsty for water now
C、the world has not enough fresh water to meet our future needs
答案A
解析 “The world... is also thirsty for water。”意思是说世界不仅面临饥饿问题，还面临水短缺问题。A与之吻合。
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