托福阅读句子插入题15

　　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：the Industrial Revolution

　　【Paragraph 3】■Watt’s steam engine soon showed what it could do. ■It liberated industry from dependence on　running water. ■The engine eliminated water in the mines by driving efficient pumps, which made possible deeper and　deeper mining. ■The ready availability of coal inspired William Murdoch during the 1790s to develop the first new form of　nighttime illumination to be discovered in a millennium and a half. Coal gas rivaled smoky oil lamps and flickering　candles, and early in the new century, well-to-do Londoners grew accustomed to gaslit houses and even streets. Iron　manufacturers, which had starved for fuel while depending on charcoal, also benefited from ever-increasing supplies of　coal: blast furnaces with steam-powered bellows turned out more iron and steel for the new machinery. Steam became　the motive force of the Industrial Revolution as coal and iron ore were the raw materials.(Powering the Industrial Revolution)

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

　　The factories did not have to go to the streams when power could come to the factories.

　　Where would the sentence best fit?