首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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
admin
2014-03-22
23
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 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 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 survive and reproduce. They may be built entirely of metals and other durable (耐用的) 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, many millions of years ago, when their planet was favorable to the origin of life, or they might be immigrants from a favored planet.
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
细节题。从文章第二段及第三段的开头可以知道,地球上人类的进化过程是很缓慢的。目前,由于外部环境比较好,所以允许个人有自己的性格,可以独立自由地生活。尽管如此,由于人类社会已得到充分的发展,其功能和作用都大大超过个人。说不定5万年以后,社会结构会发展得更加严密,也许不再允许个人有自己的性格。因此A项符合文章的意思,是正确答案。
转载请注明原文地址:https://kaotiyun.com/show/gdXO777K
0
在职攻硕英语联考
相关试题推荐
Inarecentstudy,neuroscientistsfoundthatplayingfast-pacedvideogamescouldhelpimprovedyslexicchildren’sreadingspe
Ifyoudevelopareputationforbeingabletokeepsecretsotherswill______towardsyouwithusefulnewsandgossip.
Wheneverabigcompany______asmallone,theproductalmostalwaysgetsworse.
Thebasicreasonfortheexistenceofmulti-nationalcompaniesisthecompetitiveadvantageofaglobalnetworkofproductionan
WiththeUSeconomyslowingdown,layoffsareeverywhere.Noindustryisspared.Ifyouenduphavingtostartover,inaddition
Justoveradecadeintothe21stcentury,women’sprogresscanbecelebratedacrossarangeoffields.Theyholdthehighestpol
Avarietyofproblemshavegreatly_________thecountry’snormaleducationaldevelopment.
Thiscountrycouldhaveasmanyas10millioncasesofAIDSin2010ifthe______isnottakenseriously.
Itisverynecessarytoknowtheextent______supplyanddemandwillinfluencetheprice.
Somespeculatorswere______cashandsotheysoldtheirsharesatanyprice.
随机试题
简述ABC理论。
PleasemakeacommentonTheodoreDreiser’swritingstyle.
试述公共政策调整的作用。
X线胶片特性曲线是描绘曝光量与所产生的密度之间关系的一条曲线,由于这条曲线可以表示出感光材料的感光特性,所以称之为“特性曲线”。特性曲线的横坐标为曝光量,以对数值lgE表示;纵坐标为密度,以D表示。特性曲线由足部、直线部、肩部和反转部组成。足部密度的上升与
当病人出现呕血时,提示胃内潴留血量至少达到
甲、乙、丙、丁拟任A上市公司独立董事。根据《上市公司独立董事制度》的规定,下列选项中,不能担任独立董事的有()。
下列各项中,不属于车船税征税范围的有()。
()最善仿钧窑,世称“泥均”。
对虚函数使用对象指针或引用调用,系统使用______联编;使用对象调用时,系统使用______联编。
A、Theyhavedestroyedseveralsmalltowns.B、TheywillsoonspreadtoSanFrancisco.C、Theyhaveinjuredmanyresidents.D、They
最新回复
(
0
)