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　　六级听力Lecture Two金星

　　Q19. Evening in 1959, on the day that I was born, a headline in life magazine proclaimed target Venus, there may be life there. It told of how scientists wrote a balloon to an altitude of 80,000 feet to make telescope observations of Venus’s atmosphere and how their discovery of water raised hopes that there could be living things there. As a kid, I thrilled to tales of adventure and Isaac as most juvenile science fiction novel, lucky star and the oceans of Venus. For many of my peers, though, Venus quickly lost its romance.

　　The very first thing that scientists discovered with a mission to another planet was that Venus was not at all the earthly paradise that fiction had portrayed. Q20. It is nearly identical to our own planet and bulk properties such as mass, density and size. But its surface has been cooked and dried by an ocean of carbon dioxide, trapped in the burning death grip of a runaway greenhouse effect. Venus has long been held up as a cautionary tale for everything that could go wrong on a planet like earth. As a possible home for alien life, it has been voted the planet least likely to succeed.

　　But I have refused to give up on Venus. And over the years, my stubborn loyalty has been justified. The rocky views glimpsed by the Nearer nine and other Russian landers suggested a tortured volcanic history that was confirmed in the early 1990s by the American Magellan orbiter, which used radar to peer through the planet's thick clouds and map out a rich, varied and dynamic surface. The surface formed mostly in the last billion years, which makes it fresher and more recently active than any rocky planet other than earth.

　　Q21.Russian and American spacecraft also found hints that it's ancient climate might have been wetter, cooler, and possibly even friendly to life. Measurements of density and composition imply that Venus originally formed out of basically the same stuff as earth that presumably included much more water. Then the tiny trace we find blowing in the thick air today. Thus, our picture of Venus at around that time life was getting started on earth is one of warm oceans, probably rich with organic molecules splashing around rocky shores and volcanic vents. The sun was considerably less bright back then. So, Venus was arguably a cozy, a habitat for life than earth.

　　Question 19. What do we learn from the life magazine article?

　　Question 20. What are scientists’ findings about Venus?

　　Question 21. What information did Russian and American space probes provide about Venus?

　　19题：

　　问题：我们从杂志文章中得知什么?

　　答案：A. Scientists discovered water on Venus.

　　分析：文章开头介绍杂志称金星上有生命，后面出现了选项中有的一些混淆名词，但一定要对应好动词。答案句：how their discovery of water raised hopes。

　　20题：

　　问题：关于金星，科学家发现了什么?

　　答案：D. It resembles Earth in many aspects.

　　分析：听好科学家发现内容。(同义词组：identical to our own planet)

　　21题：

　　问题：俄国及美国的太空探测器发现了什么?

　　答案：C. It might have been a cozy habitat for life.

　　分析：听到俄国及美国之后即为答案，但需要同意转换。(同义句：Venus was arguably a cozy, a habitat for life than earth.)

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