2. 外语
  3. When imaginative men turn their eyes towards space and wonder whether life exists in any part of it, they may cheer themselves b

When imaginative men turn their eyes towards space and wonder whether life exists in any part of it, they may cheer themselves b

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问题     When imaginative men turn their eyes towards space and wonder whether life exists in any part of it, they may cheer themselves by remembering that life need not 【S1】______ closely the life that exists on Earth. Mars looks like the only planet where life like us could exist, and even this is 【S2】______. But there may be other kinds of life based on other kinds of chemistry, and they may multiply on Venus or Jupiter. At least we cannot prove at present that they do not.
    Even more interesting is the possibility that life on their planets may be in a more advanced stage of evolution. Present-day man is in a 【S3】______ and probably temporary stage. His individual units possess 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 【S4】______ situation will continue very long on the evolutionary time 【S5】______ . Fifty thousand years from now man’s societies may have become so close-knit that the individuals 【S6】______ no sense of separate personality. Then little 【S7】______ 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 【S8】______ 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. 【S9】______ 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 survive and reproduce. They may be built entirely of metals and other durable materials. If this is the case, they may be much more 【S10】______ of their environment, multiplying under conditions that would destroy immediately any organism made of carbon compounds and dependent on the familiar carbon cycle.

             Word Bank:
A. doubtful             I. resemble
B. scope                J. peculiar
C. scale                K. bearable
D. tolerant             L. transitional
E. distinction          M. merged
F. like                 N. limit
G. inhabited            O. retain
H. everlasting
选项
答案resemble
解析 此处是宾语从句中需要一个谓语动词完成句意。人们高兴的原因是因为他们发现生命不需要与地球上的生命非常相似，resemble是“相像，类似”的意思，且为动词，符合句意。
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大学英语四级

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