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托福阅读句子简化题：Geothermal Energy

2015-08-18 17:16:11来源：网络

　　【托福阅读题型：Geothermal Energy句子简化题】托福阅读中句子简化题是重要题型之一。根据托福阅读题型不同来进行专项练习，是短期提高托福阅读能力的有效方法。同学们需要多加练习哦!

　　查看全部：托福阅读题型分类练习之句子简化题

　　托福阅读句子简化题：Geothermal Energy

　　【Paragraph 6】The contribution of geothermal energy to the world's energy future is difficult to estimate.　Geothermal energy is in a sense not renewable, because in most cases the heat would be drawn out of a reservoir much　more rapidly than it would be replaced by the very slow geological processes by which heat flows through solid rock into　　a heat reservoir. However, in many places (for example, California, Hawaii, the Philippines, Japan, Mexico, the rift　　valleys of Afric○the resource is potentially so large that its future will depend on the economics of production. At present,　we can make efficient use of only naturally occurring hot water or steam deposits. Although the potential is enormous, it　is likely that in the near future geothermal energy can make important local contributions only where the resource is close　　to the user and the economics are favorable, as they are in California, New Zealand, and Iceland. Geothermal energy　probably will not make large-scale contributions to the world energy budget until well into the twenty-first century, if　ever.(Geothermal Energy)

　　! Which of the sentences below best expresses the essential information in the highlighted sentence in the　passage? Incorrect choices change the meaning in important ways or leave out essential information.

　　○ Heat flows through solid rock very slowly, so it takes a very long time for geological processes to produce a　　reservoir of geothermal energy.

　　○ Geothermal energy is not renewable because heat flows very slowly through solid rock into or out of a heat　reservoir.

　　○ The heat quickly removed from a heat reservoir is replaced so slowly by geological processes that geothermal　energy is not practically speaking, renewable.

　　○ In most cases, heat travels into a heat reservoir so slowfy that it is a much quicker process to remove the heat　　from a reservoir than to replace it.



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