托福阅读句子插入题23

　　托福阅读中句子插入题是重要题型之一。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!

　　托福阅读句子插入题：Electricity from Wind

　　【Paragraph 1】Since 1980, the use of wind to produce electricity has been growing rapidly. ■In 1994 there were　nearly 20,000 wind turbines worldwide, most grouped in clusters called wind farms that collectively produced 3,000　megawatts of electricity. ■Most were in Denmark (which got 3 percent of its electricity from wind turbines) and California　(where 17,000 machines produced 1 percent of the state’s electricity, enough to meet the residential needs of a city as　large as San Francisco). ■In principle, all the power needs of the United States could be provided by exploiting the wind　potential of just three states—North Dakota, South Dakota, and Texas. ■( Electricity from Wind)

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

　　Some companies in the power industry are aware of this wider possibility and are planning sizable wind-farm

　　projects in states other than California.

　　Where would the sentence best fit?