首页
登录
职称英语
When imaginative men turn their eyes towards space and wonder whether life e
When imaginative men turn their eyes towards space and wonder whether life e
游客
2025-03-27
23
管理
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 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 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 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 organisms 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 survive and reproduce. They may be built entirely of metals and other durable materials. If this is the case, they may be much more tolerant of their environment, multiplying under conditions that would destroy immediately any organism made of carbon compounds and dependent on the familiar carbon cycle.
Such creatures might be relics of a past age, millions of years ago, when their planet was favorable to the origin of life, or they might be immigrants from a favored planet. [br] Humans on Earth today are characterized by ______.
选项
A、their existence as free and separate beings
B、their capability of living under favorable conditions
C、their great power and effectiveness
D、their strong desire for living in a close-knit society
答案
A
解析
第二段第三句“…a strong sense of personality”与A项内容相符。故A为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/4015014.html
相关试题推荐
Whenimaginativementurntheireyestowardsspaceandwonderwhetherlifee
Whenimaginativementurntheireyestowardsspaceandwonderwhetherlifee
Whenimaginativementurntheireyestowardsspaceandwonderwhetherlifee
Youngpeopleoftenwonderatthelargenumberofemployerswhodonotrespon
Youngpeopleoftenwonderatthelargenumberofemployerswhodonotrespon
Youngpeopleoftenwonderatthelargenumberofemployerswhodonotrespon
Whetherit’syourfriend’stermpaperorwordsofawell-knownauthor,plagiaris
Whetherit’syourfriend’stermpaperorwordsofawell-knownauthor,plagiaris
Whetherit’syourfriend’stermpaperorwordsofawell-knownauthor,plagiaris
Thegovernmenthastoconsiderwhetherthedestructionofonehumanlifecanbe_
随机试题
Weknowthatthestatementcommonlyacceptedwhenthefirsteditionofthisbook
Theyare______studentsthattheyallperformedwellinthefinalexaminations.A、
Plato,anancientGreekphilosopher,believedthatmenaredividedintothre
HowtoReadEffectivelyManystudentstendtoreadbookswithou
WhenItConiestoWater,WeareAllMayaNowIt’spossiblet
以下石质路堑施工方法中,适用于施工场地开阔、大方量的软岩石方工程的是()。A.静
根据《物权法》的规定,下列关于住宅建设用地使用权期间届满后续期问题的表述中,正确
在工程质量统计方法中,寻找影响质量主次因素的方法一般采用()。A、排列图法
肾病综合征最基本的病理生理改变是A:水肿 B:高血压 C:低蛋白血症 D:
以下关于影响人力资源需求预测因素的表述,不正确的是( )。A.出勤率低,新员
最新回复
(
0
)