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
2015-09-30
46
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.
According to this passage, some people believe that eventually______.
选项
A、human societies will be much more cooperative
B、man will live in a highly organized world
C、machines will replace man
D、living beings will disappear from Earth
答案
C
解析
细节题。本题是对人类前途的一种推测。根据作者的看法,人体的有机部件和无机的机械装置会融为一体,经过这个短暂的过渡时期后,由碳化合物构成的有机物将最终被取代,因此C为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/7MWO777K
0
在职攻硕英语联考
相关试题推荐
TheMexicansettlersbuiltcitiesandmansionsinwhat______becomeCalifornia.
Onceuponatime,stayingahealthyweightwaseasy.Toloseweightyousimplyhadtopractisethereverseofhomeeconomics—spe
ANewwebsitefromtheU.S.DepartmentofAgriculture(USDA)showsthat10percentofthecountryisnowa"fooddesert."TheFood
CARDINALMEZZOFANTIofBolognawasasaintwhowassaidtospeak72languages.Noonewascertainofthetruefigure,butitwas
Japan,afterspectacularpost-wareconomicgrowth,becametheworld’ssecond-biggesteconomy.
Acomputerfailurecandestroythousandsofmemories.Youcanavoidthisbykeepingyourphotosbackedup______(3words).
ObesityhasbecomeahouseholdwordintheUnitedStates.Today,aboutone【C1】______threeAmericankidsisoverweight,nearly【C
ThegoodnewswasthatMongoliawas________enormousreservesofcopperandotherminerals.
"Youexpectyourfriendstobeinclinedtoseeyouinapositivemanner,buttheyarealsokeenobserversofthepersonalitytra
Justasthesoilisapartoftheearth,______theatmosphere.
随机试题
中国共产党在长期的人才选拔过程中主要采用的人才选拔制度是()
男性,40岁。中上腹饥饿性隐痛反复发作10年,伴反酸、暖气,进食和服用抑酸剂可缓解。如该患者进行腹部检查,最具诊断价值的体征是
背景资料某一储油库工程,施工图纸已齐备,现场已完成三通一平工作,满足了工程开工的条件。该工程由银行贷款和企业自筹资金相结合,解决了资金问题,实行邀请招标发包。业主与承包单位签订的合同总工期为10个月,计300个日历天,按国家工期定额规定
如果关于x的不等式组的整数解仅有1,2,那么适合这个不等式组的整数a,b组成的有序数对(a,b)共有____________个.
属于法的规范功能的是()。
世界上最早实行宪政的国家是()
商品由两个因素构成,它们是()
关系数据库中有3种基本操作,将具有共同属性的两个关系中的元组连结到一起,构成新表的操作称为()。
下列叙述中,不正确的是
在考生文件夹下打开Excel.xlsx文件:将工作表sheetl的Al:D1单元格合并为一个单元格,文字居中对齐,计算“增长比例”列的内容,增长比例=(当年人数一去年人数)/去年人数(百分比,小数位两位),将工作表命名为“招生人数情况表”。
最新回复
(
0
)