The long, wet summer here in the northeastern U.S. notwithstanding, there’s a world shortage of pure, fresh water. As demand for water hits the limits of finite supply, potential conflicts are brewing between nations that share transboundary freshwater reserves.
Many people ask why we cannot simply take it from the sea, using our sophisticated technology of desalinization. But a good water supply must be hygienically safe and pleasant tasting and water containing salt would corrode machinery used in manufacturing in addition to producing chemical impurities. Since more than 95% of our water sits in the salty seas, man is left to face the reality that most water on the surface of the earth is not available for us.
One very feasible way of sustaining our supply of freshwater is to protect the ecology of our mountains. Mountains and water go together, a fact to which Secretary General Kofi Annan has drawn attention more than once. From 30% to 60% of downstream fresh water in humid areas and up to 95% in arid and semi-arid environments are supplied by mountains. Without interference nature has its own way of purifying water—even though chlorination and filtration are still necessary as a precaution. In a mountainous area, aeration, due to turbulent flow and waterfalls, causes an exchange of gases between the atmosphere and the water. Agriculture, industry, hydroelectric generators and homes that need water to drink and for domestic use depend on these resources and, thus, we must protect mountainous areas as a means of survival.
1. The author of this text states that( ).
2. The author believes that industry avoids salt water because( ).
3. The best title for this text is( ).
问题1选项
A.the problem of obtaining good drinking water has plagued man throughout time
B.palatability is synonymous with purity of water
C.most of the world’s water is unusable as a water supply
D.man no longer depends on desalinization for his water supply
问题2选项
A.water is needed for livestock
B.crops must be considered before man-made products
C.it is used in desalinization plants
D.it causes corrosion
问题3选项
A.The Water Problem: The Dangers Ahead
B.The Water Supply Problem: Our Options
C.The Mountains: Our Only Hope for Water
D.Water Conservation: The Challenges Ahead
第1题:
【选项释义】
The author of this text states that( ). 本文作者声称( )。
A. the problem of obtaining good drinking water has plagued man throughout time A. 长期以来,获得良好饮用水的问题一直困扰着人类
B. palatability is synonymous with purity of water B. 好喝的水就等同于纯净的水
C. most of the world’s water is unusable as a water supply C. 世界上大部分的水都不能作为水源使用
D. man no longer depends on desalinization for his water supply D. 人类不再依赖海水淡化来提供水
【考查点】推理判断题。
【解题思路】结合选项和题干可以定位答案所在区域为第二段。根据第二段最后一句“由于我们超过95%的水都位于咸海中,人类不得不面对地球表面的大多数水对我们来说是不可用的现实”可知:世界上大部分的水都无法作为水源使用。正确答案为C选项。
【干扰项排除】
A、B、D选项原文均未提及,属于无中生有。
第2题:
【选项释义】
The author believes that industry avoids salt water because( ). 作者认为工业避免提取盐水是因为( )。
A. water is needed for livestock A. 牲畜需要水
B. crops must be considered before man-made products B. 农作物必须先于人造产品
C. it is used in desalinization plants C. 用于海水淡化厂
D. it causes corrosion D. 它会导致腐蚀
【考查点】推理判断题。
【解题思路】根据题干可以定位答案所在区域为第二段。根据第二段第二句话“但是,良好的供水必须是卫生的、安全的、味道好的,而含盐的水除了会产生化学杂质外,还会腐蚀用于生产的机械设备”可知:工业从海水中提取盐水会腐蚀机械设备,所以正确答案为D选项。
【干扰项排除】
A、B、C选项原文均未提及,属于无中生有。
第3题:
【选项释义】
The best title for this text is( ). 本文的最佳标题是( )。
A. The Water Problem: The Dangers Ahead A. 水的问题:未来的危险
B. The Water Supply Problem: Our Options B. 供水问题:我们的选择
C. The Mountains: Our Only Hope for Water C. 山脉:我们唯一的水源希望
D. Water Conservation: The Challenges Ahead D. 节约用水:未来的挑战
【考查点】主旨大意题。
【解题思路】根据本文最后一段第二句“有山就有水,这是联合国秘书长科菲•安南不只一次强调的事实”,以及最后一段最后一句“农业、工业、水力发电机和需要饮用水和家庭用水的家庭都依赖这些资源,因此,我们必须保护山区作为生存手段”可知:山和水紧密相连,水源的提供依赖于山脉。正确答案为C项。
【干扰项排除】
A选项:“水的问题:未来的危险”,本文提出了跟水源相关的问题,但是没有提及会带来的危险,属于无中生有;
B选项:“供水问题:我们的选择”,本文提出了淡水供应不足的问题,但是没有提及应对供水问题有哪些选择,属于无中生有;
D选项:“节约用水:未来的挑战”,本文没有提及节约用水,属于无中生有。