Data from the pioneer spacecraft of the National Aeronautics and Space Administration 11 prove the theory that the burning 900-degree Fahrenheit surface temperature of Venus is 12 to an atmospheric greenhouse effect caused mainly by a blanket of carbon dioxide. Such a greenhouse effect is created when energy in the form of sunlight easily passes through a planets atmosphere, warms its surface, and is 13 to heat radiation that is then held in by the atmosphere. The orbiting spacecraft 14 Venus atmosphere from top to 15 , enabling NASAS scientists to establish the exact amount of sunlight absorbed at various places in the planets atmosphere and on its surface. Measurements of atmosphere composition, temperature profiles, and radiative heating predicted Venus surface temperature very 16 . The planet is closer to the Sun than is Earth, and it has a relatively thin atmosphere, but Venus atmosphere consists of more than ninety percent carbon dioxide, 17 to less than four percent in that of Earth. Because of its 18 percentage of carbon dioxide, Venus atmosphere traps much more heat radiation than does Earths. Thus, the Venus studies are 19 to be important to the understanding of possible adverse effects on Earths agriculture and sea 20 that could result from the long-term use of fossil fuels, which add carbon dioxide to the atmosphere.
A. levels B. converted C. accurately D. simplified
E. owing F. conveyed G. bottom H. sampled
I. due J. higher K. vainly L. compared
M. end N. believed O. apparently
答案:
11. O 12. I 13. B 14. H 15. G 16. C 17. L 18. J 19. N 20. A
杭州雅思口语真题回忆
雅思口语真题常用词汇(网友版)
雅思考试阅读回忆(网友版)
雅思考试口语真题答案及解析
雅思阅读真题汇总
雅思考试听力真题回忆(网友版)
雅思写作考试真题机经回忆及解析
雅思阅读真题网友回忆节选
雅思考试听力真题回忆机经
雅思考试写作真题机经不要写跑题
雅思英语听力真题网友回忆
雅思英语写作回忆(网友版)
雅思写作回忆及答案(网友版)
雅思写作真题网友回忆
雅思考试阅读真题回忆机经
雅思写作真题回忆
雅思写作真题题型回忆解析
雅思英语写作考题答案解读
雅思考试口语真题回忆(网友版)
雅思写作考试回忆(网友版)
雅思写作真题回忆及答案
雅思考试全科回忆及解析
雅思英语听力考题回忆(网友版)
雅思英语写作真题网友回忆
雅思英语写作真题范文
杭州雅思写作真题回忆(网友版)
雅思考试写作真题回忆机经
雅思考试杭州写作真题回忆
雅思口语真题及解析
雅思考试真题全科回忆机经
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |