2．The need to feed a growing population is putting much pressure on the world's supply of water．With 97% of the world's water too salty to be drunk or used in agriculture，the worldwide supply of water needs careful management，especially in agriculture．Although the idea of a water shortage（短缺）seems strange to someone fortunate enough to live in a high rainfall country，many of the world's agricultural industries experience constant water shortages．
Although dams can be built to store water for agricultural use in dry areas and dry seasons，the costs of water redistribution（重新分配）are very high．Not only is there the cost of the engineering itself，but there is also an environmental cost to be considered．Where valleys（山谷）are flooded to create dams，houses are lost and wildlife homes destroyed．Besides，water may flow easily through pipes to fields，but it cannot be transported from one side of the world to the other．Each country must therefore rely on the management of its own water to supply its farming requirements．This is particularly troubling for countries with agricultural industries in areas dependent on irrigation．In Texas，farmers'overuse of irrigation water has resulted in a 25% reduction of the water stores．
In the Central Valley area of southwestern USA，a huge water engineering project provided water for farming in dry valleys，but much of the water use has been poorly managed．
Saudi Arabia's attempts to grow wheat in desert areas have seen the pumping of huge quantities of irrigation water from underground reserves．Because there is no rainfall in these areas，such reserves can only decrease，and it is believed that fifty years of pumping will see them run dry．
33．From the first two paragraphs we learn thatC．
A．much of the world's water is available for use
B．people in high rainfall countries feel lucky
C．the costs of water redistribution should be considered
D．water can be easily carried through pipes across the world
34．Which of the following is true？C
A．The water stores in Texas have been reduced by 75%．
B．Most industries in the world suffer from water shortages．
C．The underground water in Saudi Arabia might run out in 50 years．
D．Good management of water use resulted from the project in the Central Valley．
35．The text is mainly aboutB．
A．water supply and increasing population
B．water use management and agriculture
C．water redistribution and wildlife protection
D．water shortages and environmental protection．
分析 文章讲到随着人口增加，农业用水增加，导致了水资源分配不均，并提出了修建水坝解决这种问题的方法．然后着重讲了美国德州和沙特阿拉伯因水资源管理问题导致的农业用水的过度使用．
解答 33-35CCB
33．C 推断题．由第二段第一句"Although dams can be built to store water for agriculture use in dry areas and dry seasons，the costs of water redistribution（重新分配） are very high．"可知作者热认为虽然水资源的重新分配是个很好的办法，但高昂的费用也需要考虑进去．A项，文章介绍的是水资源短缺带来的问题，所以A项错误．B项，文章没有相关内容，所以B项错误．D项，第二段作者说并不能很容易将水从世界的一端运到另一端．故正确答案为C．
34．C 细节题．由最后一段最后一句"it is believed that 50 years of pumping will see them run dry．"可知正确答案为C．A项，德州水资源减少了25%而不是75%，所以A项错误．B项，文中没有具体提到哪些行业缺水，所以B项错误．D项，文中没有相关内容，所以D项错误．故正确答案为C．
35．B 主旨题．文章开头讲到随着人口增加，农业用水增加，导致了水资源分配不均，并提出了修建水坝解决这种问题的方法．然后着重讲了美国德州和沙特阿拉伯因水资源管理问题导致的农业用水的过度使用，所以B项符合文意．A项，文中说的是人口增加导致的农业用水需求增加，而不是人口增加与水资源供应的关系，所以A项错误．C项，没有提到与农业相关，所以C项错误．D项，文章与环保无关，所以D项错误．故正确答案为B．
点评 阅读理解题测试考生在阅读基础上的逻辑推理能力，要求考生根据文章所述事件的逻辑关系，对未说明的趋势或结局作出合理的推断；或根据作者所阐述的观点理论，对文章未涉及的现象、事例给以解释．考生首先要仔细阅读短文，完整了解信息，准确把握作者观点．
