新东方：大学英语四级考试阅读讲义(三)新东方：大学英语四级考试阅读讲义(三)
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Passage Three Questions 31 to 35 are based on the following passage: 考试大
When imaginative men turn their eyes towards space and wonder whether life exist in any part of it, they may cheer them...
新东方：大学英语四级考试阅读讲义(三)
考研屋 www.kaoyanwu.com
提供各大机构考研、公务员、四六级辅导视频课程
Passage Three Questions 31 to 35 are based on the following passage: 考试大
When imaginative men turn their eyes towards space and wonder whether life exist in any part of it, they may cheer themselves by remembering that life need not resemble closely the life that exists on Earth. Mars looks like the only planet where life like ours could exist, and even this is doubtful. But there may be other kinds of life based on other kinds of chemistry, and they may
Even more multiply on Venus or Jupiter. At least we cannot prove at present that they do not.
interesting is the possibility that life on their planets may be in a more advanced stage of evolution. Present-day man is in a peculiar and probably temporary stage. His individual units retain a strong sense of personality. They are, in fact, still capable under favorable circumstances of leading individual lives. But man’s societies are already sufficiently developed to have enormously more power and effectiveness than the individuals have. It is not likely that this transitional
situation will continue very long on the evolutionary time scale. Fifty thousand years from now man’s societies may have become so close-knit that the individuals retain no sense of separate personality. Then little distinction will remain between the organic parts of the multiple organism and the inorganic parts (machines) that have been constructed by it. A million years further on man and his machines may have merged as closely as the muscles of the human body and the nerve cells that set them in motion. The explorers of space should be prepared for some such
situation. If they arrive on a foreign planet that has reached an advanced stage (and this is by no means impossible), they may find it being inhabited by a single large organism composed of many closely cooperating units. The units may be “secondary” — machines created millions of
years ago by a previous form of life and given the will and ability to surv
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