3.【解析】[Y]该句句意为:缺水的主要原因是人口增长和水污染。本题解题依据可定位到本文第四段第一句话 Growing populations will worsen problems with water... 及第十一段第一句话But almost everyone contributes to water pollution. 两者都是水资源缺乏的原因，与原文之义相符。
4.【解析】[Y]该句句意为:美国人面临的有关水的问题为地下水的减少和污染。本题解题依据为第七段第二句话和第八段第三句话，这两句话加在一起即为美国人所面临的水资源方面的问题，与原文之义相符。
5.【解析】[N]该句句意为:根据这篇文章，所有水的污染都来自于家庭废弃物。本题解题依据为第十一段最后一句话...70 percent of the pollutants could be traced to household waste (百分之七十的污染物源于家庭废弃物)，据此，本题之意与原文之义不合。
6.【解析】[N]该句句意为:美国人将不会面临缺水问题。该题解题依据为文章第七段第二句话 But Americans could face serious water shortages, too, especially in areas that rely on groundwater, 显然本题之意与原文之义不合。
7.【解析】[NG]该句句意为:水利专家Gleick 提供了与水相关的最佳解决方案。根据本文第十三段第一句话所述，专家Gleick 并未提供任何最佳解决方案。
8.【解析】onethird 解题依据为第四段最后一句话：He fears that by the year 2025, as many as onethird of the world’s projected 8.3 billion people will suffer from water shortages.
9.【解析】glaciers and ice caps 解题依据为第五段第二句话：Twothirds of this freshwater is locked in glaciers and ice caps.
10.【解析】water pollution 解题依据为第十段第二句话：Toxic chemicals pollute water when released untreated into rivers and lakes.
Part IIIListening Comprehension
Section A
11.W∶ I just saw an ad on television that said men’s suits were on sales today and tomorrow at Conrad’s Men’s Wear.
M∶Great! That’s just what I’ve been waiting for.
Q∶What will the man probably do?
【解析】[D]男士说男士套装的特价销售正是他一直等待着的。所以从他的态度可判断，他要去买件男装。
12.W: Is John really ill?
M:It’s hard to say. I doubt there’s anything wrong with him physically.
Q: What does the man mean?
【解析】[A]从男士的话：我怀疑约翰的身体没有任何问题中可看出答案。
13.M:Do you know if the book shop is still open?
W:Yes, it’s open till six.
Q:When do you think this conversation took place?
【解析】[A] 女士说书店现在还开着，一直开到六点呢，说明现在的时间是在六点之前。
14.M:Of the two houses we saw today, which do you prefer?
W:I think the white one is prettier, but the brick one has a bigger yard, so I like it better.
Q:Why does the woman like the brick house better than the white house?
【解析】[C]女士明确指出 the brick one has a bigger yard, so I like it better.
15. M:Honey, we’ll have a guest from Australia, a friend of mine. He’ll stay in California for two weeks.
W:Yes. Your friend Andy. He was your classmate at London University, wasn’t he?
Q:What is the probable relationship between the two speakers?
【解析】[C]男士称女士为 honey, 证明两人关系亲密，由此可判断两人关系为夫妻。
16.M: When will the meeting begin?
W:According to the schedule it should be at 9:30. It will last for an hour and a half.
Q:When will the meeting be closed?
【解析】[B]根据女士所说的话，根据时刻表会议9∶30开始，持续一个半小时，那么即11：00结束。
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