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Paragraph6: The technology is in place for a major expansion of wind power worldwide.Wind power is a virtually unlimited source of energy at favorable sites, andeven excluding environmentally sensitive areas, the global potential of windpower is much higher than the current world electricity use. In theory, Argentina, Canada,Chile
, China, Russia,and the United Kingdomcould use wind to meet all of their energy needs. Wind power experts project thatby the middle of the twenty-first century wind power could supply morethan 10 percent of the world’s electricity and 10-25 percent of the electricityused in the United States.（答案是选2 但是我选的4， 实在找不出来哪里错了）
12.Which of the following statements most accurately reflects the author’s opinionabout wind energy?
○Wind energyproduction should be limited to large wind farms.
○The advantages of wind energy outweigh the disadvantages.
○Thetechnology to make wind energy safe and efficient will not be ready until themiddle of the twenty-first century.
○Wind energy will eventually supply many countries withmost of their electricity.
Paragraph1: Since 1980, the use of wind to produce electricity has been growing rapidly.█In 1994 there were nearly20,000 wind turbines worldwide, most grouped in clusters called wind farms thatcollectively produced 3,000 megawatts of electricity. █Most were in Denmark (which got 3 percent ofits electricity from wind turbines) and California (where 17,000 machinesproduced 1 percent of the state’s electricity, enough to meet the residentialneeds of a city as large as San Francisco). █In principle, all thepower needs of the United States could be provided by exploiting the windpotential of just three states—North Dakota, South Dakota, and Texas. █（答案选4 我选的3 我选3的原因是前面有一个california)
13. Look at the foursquares [■] thatindicate where the following sentence could be added to the passage.
Some companies in the power industry are aware of this wider possibilityand are planning sizable wind-farm projects in states other than California. |
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发表于 2011-5-1 21:52:41
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