11 to renewed interest in coal and to a search for 12 sources of energy. Solar, geothermal, and nuclear energy will play a large role in the years to come.
Solar energy is available in 13 forms. Buildings can be heated and cooled by direct use of solar radiation, crops and trees, which are the most efficient converters of sunlight into energy, can be grown for their energy potential, wastes can be burned as 14 , sunlight can be converted into DC electricity, electric power can be 15 from the sun-warmed surface waters of the ocean, and lastly, solar radiation can be converted into heat that will drive electric power generators. Serious problems still remain as to 16 and storage of solar energy.
Geothermal energy is the energy contained within the earth. Heat is abundantly available deep in the earths core and is constantly being produced. However, this heat is usually located at too deep a level for 17 exploitation. In short, very little is known on the use of geothermal energy, and it has 18 been exploited.
Nuclear energy is produced in nuclear power plants. At these plants atoms of uranium are split, thus 19 masses of energy. Another source of energy under development is the nuclear fusion of certain atoms of hydrogen. This could eventually 20 natural gas as a source of energy.
A. rarely B. transformation C. fuel D. replace
E. led F. alternative G. commercial H. briefly
I. derived J. various K. relieving L. releasing
M. transportation N. financial O. described
II. E 12. F 13. J 14. C 15. I 16. M 17. G 18. A 19. L 20. D
高考英语作文必备120个黄金句:11~20
高考英语作文必备120个黄金句:21~30
2015年最新高中英语作文优秀范文:成长的烦恼
高三英语作文万能句子:英语名人名言大全(工作篇)
高考英语作文必备120个黄金句汇总
高二英语作文范文精选200字:Identifying Chips
高二英语作文精彩范文1000字:Never Be Lost in Your Dream
高考英语作文必备120个黄金句:41~50
2015年最新高中英语作文优秀范文:燃烧成功的欲望
2015年最新高中英语作文优秀范文:大学生参军
2015年最新高中英语作文优秀范文:秋游
高考英语作文必备120个黄金句:101~110
高三英语作文万能句子:英语名人名言大全(学习篇)
高二英语作文范文精选250字:Travel to the forest
2015年最新高中英语作文优秀范文:信心与希望
高考英语作文必备120个黄金句:81~90
高考英语作文必备120个黄金句:31~40
高二英语作文精彩范文300字:The Disabled Should Have Equal Rights
2015年最新高中英语作文优秀范文:分享的意义
高二英语作文精彩范文120字:Spring is coming on
2015年最新高中英语作文优秀范文:开卷有益
高三英语作文万能句子:英语名人名言汇总
高三英语作文万能句子:英语名人名言大全(时间篇1)
高三英语作文万能句子:英语名人名言大全(奋斗篇1)
高三英语作文万能句子:英语名人名言大全(成功篇)
高考英语作文必备120个黄金句:61~70
高三英语作文万能句子:英语名人名言大全(财富篇)
高二英语作文精彩范文400字:The Tibetan Minority
高三英语作文万能句子:英语名人名言大全(知识篇)
2015年最新高中英语作文优秀范文:广告的利与弊
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