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
2011-01-02
32
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 year’s 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 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 car bon 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
由第二段“His individual units retain a strong sense of personality. They are,in fact,still capable under favorable cir cumstances of leading individual lives.”可知人类现在的特点就是“作为自由个体存在”,所以[A]是正确答案。
转载请注明原文地址:https://kaotiyun.com/show/RoeO777K
0
专业英语八级
相关试题推荐
Theconflictbetweengoodandevilisacommonthemerunningthroughthegreatliteratureanddramaoftheworld,fromthetime
ThePresidentduringtheAmericanCivilWarwas______.
Anyonemakinglongdrivesthissummerwillnoticeanewdimensiontocontemporaryinequality:awideninggapbetweentheuserso
A、Larynxiswhatwesometimescall"Adam’sapple".B、TheInternationalPhoneticAlphabetusesnarrowtranscription.C、Thereare
Whennatureisleftalone,abalanceisreachedamongtheanimalsandplantslivinginonearea.Butwhenmaninterfereswithna
Incontrasttotraditionalanalysesofminoritybusiness,thesociologicalanalysiscontendsthatminoritybusinessownershipi
A、Anexportsalesmanworkingoverseas.B、Anaccountantworkinginthecompany.C、Aproductionmanagerinabranch.D、Apolicyma
ThomasJefferson,whodiedin1826,loomseverlargerasafigureofspecialsignificance.Americans,ofcourse,arefamiliarwi
文学的工具是语言文字。首先我们必须认识语言文字,其次必须有运用语言文字的技巧。这事看起来似乎很容易,因为一般人日常都在运用语言文字。但是实在很难的,因为文学要用平常的语言文字产生不平常的效果。文学家对于语言文字的了解,必须比一般人都更精确、更透彻,然后方可
C英国文学之作家作品。英国维多利亚时期的著名诗人、小说家ThomasHardy(哈代)的代表作有TessoftheD’Urbervilles(《德伯家的苔丝》)和JudetheObscure(《无名的裘德》)。
随机试题
眼处于静息状态时能够形成清晰视觉的眼前物体最远的点称为()
简述肝的位置。
关于肠结核腹部肿块的叙述不正确的是
()现金流量,是指财务主体采用某个项目和不采用某个项目在现金流量上的差别。
某企业2017年6月购置并投入使用环境保护专用设备(属于企业所得税优惠目录的范围),取得增值税专用发票注明的金额300万元、税额51万元,2017年该企业应纳税所得额168万元。该企业当年应缴纳的企业所得税是()万元。
Shestayedandtalkedwithhim______polite.
党的十七届五中全会强调,在当代中国,坚持发展是硬道理的本质要求,就是坚持科学发展,把握好“四个更加注重”。下列不属于“四个更加注重”的是()。
2015年,我国海洋灾害以风暴潮、海浪、海冰和赤潮灾害为主,绿潮、海岸侵蚀、海水入侵与土壤盐渍化、咸潮人侵等灾害也均有不同程度发生。各类海洋灾害造成直接经济损失72.74亿元,死亡(含失踪)30人。2014年7月,在我国华南沿海登陆的1409“威马逊”
一个待业青年占道摆摊,城管局要求取缔。有一个干部帮他办了营业执照,又换了一个不占道的位置。请问你对此怎么看?如果在今后的工作中遇到类似的情况你怎么做?
Hollywoodhasamessageforscientists:Ifyouwantsomethingthat’s100%accurateineveryway,gowatchadocumentary.Thethi
最新回复
(
0
)