2．Think about the different ways that people use 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（風車） 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．
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 19 40s when electricity was available to people in almost all areas of the United States，windmills were rarely used．
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．
28．From the text we know that windmillsC
A．have rarely been used since electricity was discovered
B．have a history of more than 2，800 years
C．used to supply power to radio in remote areas
D．were invented by European armies
29．What was a new use for wind power in the late 19gh century？C
A．Sailing a boat．
B．Grinding wheat into flour．
C．Producing electricity．
D．Pumping water from underground．
30．One of the reasons wind was rediscovered in the 1970s is thatB
A．it is one of the oldest power sources
B．wind power is cleaner
C．it was cheaper to create energy from wind
D．the supply of coal and gas failed to meet needs
31．What would the author probably discuss in the paragraph that follows？
B
A．The adv antages of wind power．
B．The global trend towards producing power from wind．
C．The worldwide movement to save energy．
D．The design of wind power plants．
分析 文章介紹風能發(fā)展的過程和用途，并介紹全球已越來越多地使用風力發(fā)電，因為它的清潔環(huán)保的能源．
解答 C C B B
28．C：細節(jié)理解題．根據(jù)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．"可推出風車可以給遙遠的地方的無線電提供電力，C項符合題意．
29．C：細節(jié)理解題．根據(jù)第二段的"When electricity was discovered in the late 1800s，people living in remote areas began to use them to produce electricity．"可知在19世紀末期，風車可以用來發(fā)電，C項符合題目要求．
30．B：細節(jié)理解題．根據(jù)第三段的"people started becoming concerned about the pollution that is created when coal and gas are burned to produce electricity"可知現(xiàn)在重新使用風能是因為它是清潔的，B項符合題意．
31．B：推理判斷題．第三段最后已提出現(xiàn)在全球已越來越多地使用風力發(fā)電，所以下一段應該要進一步推廣使用風力發(fā)電，這是一種總體的能源發(fā)展趨勢．故B項正確．
點評 做閱讀理解時要快速的瀏覽全文，把握文章主旨大意，帶著問題回到原文，尋找細節(jié)或概括相應的答案，最后要理清作者寫作思路．
