内容正文:
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重点单词
短语必背
短语与句式
难句分析
Period One
本讲栏目开关
重点单词
短语必背
短语与句式
难句分析
Think about the different ways that people use the wind.You can use it to fly a kite or to sail a boat.Wind is one of our cleanest and richest power sources,as well as one of the oldest.Evidence shows that windmills(风车) began to be used in ancient Iran back in the seventh century BC.They were first introduced to Europe during the 1100s,when armies returned from the Middle East with knowledge of using wind power.
Period One
本讲栏目开关
重点单词
短语必背
短语与句式
难句分析
For many centuries,people used windmills to grind(磨碎) wheat into flour or pump water from deep underground.When electricity was discovered in the late 1800s,people living in remote areas began to use them to produce electricity.This allowed them to have electric lights and radio.However,by the 1940s when electricity was available to people in almost all areas of the United States,windmills .
Period One
本讲栏目开关
重点单词
短语必背
短语与句式
难句分析
During the 1970s,people started becoming concerned about the pollution that is created when coal and gas are burned to produce electricity.People also realized that the supply of coal and gas would not last forever.Then,wind was rediscovered,though it means higher costs.Today,there is a global movement to supply more and more of our electricity through the use of wind.
Period One
本讲栏目开关
重点单词
短语必背
短语与句式
难句分析
根据上文完成下列各题
1.From the text we know that windmills .
A.were invented by European armies
B.have a history of more than 2,800 years
C.were used to supply power to radio in remote areas
D.have rarely been used since electricity was discovered
解析 细节理解题。根据第二段的“When electricity was discovered in the late 1800s,people living in remote areas began to use them to produce electricity.This allowed them to have electric lights and radio.”可推出,C项符合题意。
答案 C
Period One
本讲栏目开关
重点单词
短语必背
短语与句式
难句分析
2.What was a new use for wind power in the late 19th century?
A.Sailing a boat.
B.Producing electricity.
C.Grinding wheat