The world is not hungry，but it’s thirsty. 1while we say we are short of water.Wh

题文

The world is not hungry，but it’s thirsty.   1  while we say we are short of water.Why？Becau about 97% of water on the earth is a water which we can‘t drink or u for watering plants directly.Man can only drink and u the 3% of water that comes from rivers and lakes.   2  ，becau some of it has been polluted. Now more water is needed.The problem is how we can avoid a rious water shortage in the future.  3 Scientists are making study in this field.Today，In most large cities water is ud only once and then runs to the a or rivers.but it can be ud again.Even if every large city reud its water，the water will still not be enough. 4 . The a ems to give us the best answer.There is a lot of water in the a.All that needs to be get the salt out of the a water.This will be expensive，but it has already been ud in many parts of the world.   6 So you e，if we can find out a way，we’ll be in no danger of drying up.从方框中所给的选项中选出能填入空白处的最佳选项，补全短文。其中有一项为多余选项。A．Scientists are trying to find a cheaper way of doing it.B．It ems strange that nearly 3/4 of the earth is covered with water.C．What could people do next?D．We should u all the water directly.E. First, we should find out ways to reu it.F. And we can’t even u all of that.

题型：未知 难度：其他题型

答案

小题1:B小题2:F小题3:E小题4:C小题5:A

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解析

小题1:上文提到地球想喝水，下文说地球缺水。根据连接词while，然而，可知选B，最符合逻辑关系。好像很奇快，地球的将近3/4覆盖着水。小题2:上文提到地球上大部分水不能直接使用，故选F，我们甚至不能全部利用他们。下文解释这种问题的原因。小题3:根据上文The problem is how we can avoid a rious water shortage in the future.我们怎样才能避免在将来发生严重的水资源短缺问题，结合下文有些水可以重复利用，可知选E，首先我们应该找出重新利用他的方法。小题4:结合上文出现的序数词first，以及下文介绍的利用海水，可知选C，可起到承上启下的作用。小题5:上文提到了利用海水的方法，但比较代价高，结合下文如果我们能找到一种方法，可知选项处为假设的前提，故选A。。

考点

据考高分专家说，试题“The world is not hun.....”主要考查你对 [科教类阅读 ]考点的理解。

科教类阅读

科普类的阅读：科普类的阅读理解包含介绍科学知识、社会知识的短文。阅读这类短文时，要以事实为中心进行思考，抓住事物的特征、用途、相互关系等。如果是介绍社会现象的文章，要掌握所谈现象的内涵。

答题技巧：1. 加强整体意识，把握文章的主要内容。在阅读的时候可给段落标上序号，并给重要的句子和   关键词做上记号，尤其是各段中心句，为答题提供更快捷更多的信息源。 2. 审清题干，发觉和把握试题中有效的提示性信息，确认命题的角度、阅读范围和答题方式。 3. 定位阅读，强化对应意识。同时要注意原文利用和自我加工相结合。