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
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About Job Interview 关于工作面试
公司是如何融资的?
推特宣布员工可以永久在家办公
学生是否谈恋爱
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Be Grateful 感恩
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Future Robot(未来的机器人)
故宫上调每日预约上限
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美失业率创二战后新高
五一假期
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Prepare for the Chinese New Year(为春节做准备)
My Father(我的爸爸)
About Divorce 离婚
“双J组合”合体演唱《稻香》上热搜,“刷屏”英语怎么说?
“工作全都做完了!”这句话用英语怎么说?
新加坡派出机器狗提醒民众保持社交距离
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