Passage 2Growth of trade will depend greatly on availability of energy sources. There may still be a
Growth of trade will depend greatly on availability of energy sources. There may still be a trillion barrels of recoverable oil in the Middle East. But the oil crisis of 1974 has 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
答案:11. E 12. F 13. J 14. C 15. I 16. M 17. G 18. A 19. L 20. D
一个月雅思听力备考策略
雅思听力特训方法与复习技巧
雅思听力备考高分技巧
雅思听力的练习时间和练习时间长度
雅思听力判断题的答题技巧
掌握7类信号词 快速找到雅思听力答案
七大妙招攻破听力评分标准
雅思听力高分技巧:四大注意事项
雅思听力背景词汇:国家和国籍
雅思听力流程的五大技巧
七大妙招攻克雅思听力评分标准
雅思听力核心词汇:低碳
3类雅思听力练习中的关键名词
雅思听力分类词汇:地质学
雅思听力考试满分应试技巧
雅思听力高频词汇:世界主要节日
雅思听力场景词汇:课题和课程
24个雅思听力高分要点
雅思听力背景材料:极限旅游
提高六方面能力 拿雅思听力高分
突破雅思听力高分以名词和数词为主
雅思听力中的定语结构听力技巧
雅思听力答案的特点
雅思听力主要句型介绍:从句
雅思听力背景材料:天上掉钻石
总结:雅思听力考试审题“四宗罪”
雅思听力应对技巧:护照号码
雅思听力背景材料:二战后的美国
雅思高分听力的必备21条小贴士
雅思听力澳洲口音应对技巧
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