Question

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 rainfull 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 seaons, the costs of water redistribution(重新分配)are very high. Notonly 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 many 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 ro countries with agricultural industries in areas dependent on irrigation（灌溉）. In Texas, farmers’ overuse of irrigation water be resulted in a 25% redcution of the water stores. In the Central Valley area of south eastern USA, a huge water engineering project provided water for farming in dry vallege, but much of the water use has been poorly managed.

Saudi Arabia’s attempts to grow wheat in desert areas have been 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.

1. From the first two paragraphs we learnt that _______.

A.much of the world’s water is available for use

B.people in high rainfll countries feel lucky

C.the costs of water redistribution should be considered

D.water can be easily carried through pipes across the world

2.Which of the following is true?

       A.The water  in Texas have been reduced by 75%.

       B.Most industries in the world suffer from water shortagers.

       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.

3.What is most likely to be discussed in the paragreh that follows?

       A.Steps to improving water use managet.

       B.Ways tor redjuce the costs of builing dams.

       C.Measured to dmal with worldwide water shortages.

       D.Appmihes to handling the pressure on water supply.

4.The text is mainly about____________.

       A.water supply and increasing population

       B.water use management and agriculture

       C.water redistribution and wildlife protection

       D.water shornages and environmental protection.

Answer 1

【小題1】C

【小題2】C

【小題3】A

【小題4】B

解析:

【文章大意】世界的可用淡水資源有限，但農(nóng)業(yè)在利用水資源過程中存在不盡如人意之處，本文指出了其中的一些問題。

【小題1】 細(xì)節(jié)理解題。    由文中第一段第二句“With 97% of the world water too salty to be drunk or used in agriculture,...”可知A選項(xiàng)錯誤；由第一段第三句“...strange to someone who lives in a high rainfall country.”可知B選項(xiàng)不合文意。第二段前兩句指出水資源的重新分配的費(fèi)用極高，一方面是水利過程本身的造價，另一方面也會對生態(tài)造成極大的破壞，所以選項(xiàng)C正確；根據(jù)第二段第四句“...it can not be transported from one side of the world to the other...”可知D選項(xiàng)不正確。

【小題2】細(xì)節(jié)理解題。根據(jù)文章第三段第二句“...has resulted in a reduction of 25% of water store”可判斷A選項(xiàng)不正確; 由第一段最后一句可判斷B選項(xiàng)錯誤；由文章最后一句“...fifty years of pumping will see them run dry”可知C選項(xiàng)正確；根據(jù)文章第三段最后一句可知D選項(xiàng)不正確。

【小題3】 判斷推理題。文章前面一部分主要是講述農(nóng)業(yè)在利用水資源過程中存在的問題，接下來應(yīng)該是介紹加強(qiáng)水資源管理的方法和措施，所以A選項(xiàng)正確。

    【小題4】主旨大意題。參見上題。