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托福阅读插入题范例(20)

2015-08-03 11:31:38来源：网络

　　【托福阅读插入题范例(20)】托福阅读插入题本质是考察考生的关联句子能力，语法及逻辑关系。新东方在线托福网为大家带来托福阅读插入题范例(20)，希望对大家托福备考有所帮助。更多精彩尽请关注新东方在线托福网!

　　查看全部：托福阅读插入题范例

　　托福阅读插入题例题

　　例题20：

　　The reaction of farmers to the inevitable depletion of the Ogallala varies. Many have been attempting to conserve water by irrigating less frequently or by switching to crops that require less water.█ Other, however, have adopted the philosophy that it is best to use the water while it is still economically profitable to do so and to concentrate on high-value crops such as cotton.█ The incentive of the farmers who wish to conserve water is reduced by their knowledge that many of their neighbors are profiting by using great amounts of water, and in the process are drawing down the entire region’s water supplies.█

　　In the face of the upcoming water supply crisis, a number of grandiose schemes have been developed to transport vast quantities of water by canal or pipeline from the Mississippi, the Missouri, or the Arkansas rivers. █Unfortunately, the cost of water obtained through any of these schemes would increase pumping costs at least tenfold, making the cost of irrigated agricultural products from the region uncompetitive on the national and international markets. Somewhat more promising have been recent experiments for releasing capillary water (water in the soil) above the water table by injecting compressed air into the ground. Even if this process proves successful, however, it would almost triple water costs.

　　Look at the four squares [█] that indicate where the following sentence could be added to the passage.

　　But even if uncooperative farmers were to join in the conservation efforts, this would only delay the depletion of the aquifer.

　　Where would the sentence best fit?

　　答案见下一页>>>>


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　　更多托福阅读题型相关知识点，尽请关注>>>>新东方在线托福阅读！

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