题目内容
6.Water runs downhill from mountaintops to streams to rivers to oceans.But downhill isn't the only way that water moves.A new study measures how water travels from country to country for human consumption.This flow isn't the type we usually think about.These scientists looked at the water used to grow and make the products that get shipped from nation to nation as imports or exports.They call this a flow of"virtual water (虚拟水)".We typically think about water as the liquid that flows from a tap.However,92% of the water used by people goes into growing crops,according to water researcher Arjen Hoekstra.He and his team recently studied the hidden travels of virtual water used in products made from things like crops and meats.These products are shipped around the world.
For example,consider a sugary soft drink.Hoekstra and his team estimated (估计) that to produce one half-liter of the drink requires between 170and 310liters of water.Only a tiny amount of that-about 1percent-is the water actually used in the soda.The vast majority of the water-about 95%-is used to grow and process the ingredients (原料).Another 4% goes into the packaging and labeling,say the scientists.In Hoekstra's calculation,when one country produces a half-liter of soda and sells it abroad,it exports as much virtual water as would fill a large refrigerator.
According to Hoekstra's new report,dry countries like Israel and Kuwait,both in the Middle East,get the majority of their virtual water from other countries,through imported products.More surprisingly,some wetter countries,like the Netherlands and the United Kingdom,also get the majority of their virtual water from other places.That means that most of the water used to grow or produce the products and food consumed in those countries came from other countries.
In the United States,most of the virtual water used comes from American sources.In China,even less of the water associated with its products.
Hoekstra and his team turned up other surprising relationships.For example,dry areas in northern China send virtual water to the southern part of that country,which is wetter.
"There are exporting regions that do have a lot of water stress,"he told Science News.
32.What is the best title for the text?D
A.Crops and Virtual Water
B.Import and Export of Water
C.Benefits of Virtual Water
D.Water's Worldwide Travels
33.The first paragraph is intended to talk aboutB.
A.how water flows
B.what virtual water is
C.where virtual water exists
D.why water is imported and exported
34.The example of a sugary soft drink in Paragraph 3 is given to showB.
A.how drinks are made
B.how virtual water is used
C.how virtual water is exported
D.how drinks are shipped
35.The text is most probably aA.
A.science news report
B.book review
C.newspaper advertisement
D.science fiction story.
分析 文章主要讲解水是怎么在全世界范围旅行的.
解答 32-35 D B B A
32.D 主旨大意题.根据全文可知,本文是一篇科普类阅读,主要介绍水是怎么在全世界范围旅行的.故D正确.
33.B 推理判断题.根据文章第一段最后一句They call this a flow of"virtual water(虚拟水)可知此段讲解什么是虚拟水.故B正确.
34.B 推理判断题.根据文章第三段,我们可以了解到作者给出实例来解释虚拟水是如何使用的.故B正确.
35.A 推理判断题.根据全文可知,本文是一篇科普类阅读.故可以推测出文章可能选自于科学新闻报道.故A正确.
点评 推理判断题要求在理解原文表面文字信息的基础上,做出一定的推理判断,从而得到文章的隐含意义和深层意义.推理判断题所涉及的内容可能是文中的某一句话,也可能是某几句话,所以,推理题的答案只能是根据原文表面文字信息一步推出的答案:即对原文某一句话或某几句话所作的同义改写或综合.推理判断题的题干中通常含有infer,suggest,imply,conclude indicate等标志性词语. 这种题型主要包括细节判断题、态度观点推断题、写作意图推断题、文章出处判断题和猜测想象推断题.
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