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
考研
Man first appeared on earth half a million years ago. Then he was little more than an animal; but early man had several big adva
Man first appeared on earth half a million years ago. Then he was little more than an animal; but early man had several big adva
admin
2010-11-27
62
问题
Man first appeared on earth half a million years ago. Then he was little more than an animal; but early man had several big advantages over the animals. He had a large brain, he had an upright body, he had clever hands; and he had in his brain special groups of nerve cells, not present in animals, that enabled him to invent a language and use it to communicate with his fellow men. (46)
This ability to speak was of great value because it allowed men to share ideas and to plan together, so that tasks impossible for a single person could be successfully undertaken by intelligent team-work.
Speech also enabled ideas to be passed on from generation to generation so that the stock of human knowledge slowly increased.
It was these special advantages that put men far ahead of other living creatures in the struggle for existence. They can use their intelligence against their difficulties and master them.
Since these far-off times, when he first appeared, man has achieved a great deal. He has used animals, steam, electricity and oil to move himself more and more quickly from place to place. He has overcome rivers and seas with rafts, canoes, boats and ships of endless variety. (47)
He mastered dark-ness, too, first with dim lights and later with brighter and brighter lamps, until he can now make for himself so dazzling a light with an are-lamp that, like the sun, it is too strong for his naked eyes.
(48)
Man found that his own muscles were too weak for the work which he wanted to do; he explored many forms of power—wind, water, steam, electricity—until now he has his hands on the ultimate source of physical energy, the nuclear power which ties together the smallest units from which all matter is made.
From man’s earliest days the flight of birds has raised his wonder and desire. Why should he not fly as they did? Then he began to experiment. At last he learnt how ’to make the fight machines to carry him through the air. Now he can fly faster than sound. Already he has plans for conquering space, and a series of experiments has been completed. (49)
It will not be long now before man takes a giant step away from his planet and visits the moon, learning what it is like to have no weight to his body, no upward direction and no downward.
Man, always a wanderer, has to overcome the difficulty of adapting himself to different climates, (50)
Fortunately, in spite of having no thick skin or warm fur to protect him, he is peculiarly strong compared with other living creatures, most of whom are unable to live far outside the region that suits them best.
Man, however, can go almost everywhere. You will find him living on the plains and up in the hills; he lives in damp areas and in dry; in the forests of the hot regions of the earth, and in snow huts in the Far North.
选项
答案
说话这种能力具有非常重要的意义,因为它使人们能够交流思想,共同出谋划策,个人不可能胜任的任务可以依靠集体智慧来顺利完成。
解析
be of great value具有重要的价值(意义),类似的用法:be of great use非常有用,be of great importance极为重要,be of high quality具有很高的质量。allow使…得以发生,如:This money allows me to buy a car.(这笔钱可让我买一部小汽车)。undertake着手做,从事,如:He undertakes a venture.(他着手经营一项有风险的生意)。undertake后可接不定式,意为"同意或答应做某事"。
转载请注明原文地址:https://kaotiyun.com/show/MJZ4777K
0
考研英语一
相关试题推荐
Bysaying"OnecandriveahundredmilesinanydirectionfromBeijingandnevercrossahealthyriver"(Line1,Paragraph2),t
Youaregoingtoreadatextaboutthestateofcollegestudents’mentalhealth,followedbyalistofexamples.Choosethebest
Whatisthepassagemainlyabout?WelearnfromthetextthatEdwardBannermanisprobably______.
Thelogicalorganizationofthefirstparagraphofthetextisthat_____.Accordingtothetext,seniormanagersuseintuition
Washington,DChastraditionallybeenanunbalancedcitywhenitcomestothelifeofthemind.Ithasgreatnationalmonuments,
Japanesefirmshaveachievedthehighestlevelsofmanufacturingefficiencyintheworldautomobileindustry.(46)Someobservers
PresidentBushtakestothebullypulpittodeliverasternlecturetoAmerica’sbusinesselite.TheJusticeDept.stunstheacc
Politicalcontroversyaboutthepublic-landpolicyoftheUnitedStatesbeganwiththeAmericaRevolution.(1)_____,evenbefore
Britishcancer’researchershavefoundthatchildhoodleukaemiaiscausedbyaninfectionandclustersofcasesaroundindustria
Itishardtoboxagainstasouthpaw,asApolloCreedfoundoutwhenhefoughtRockyBalboainthefirstofaninterminableseri
随机试题
焊缝金属常用的脱氧方法有哪些?
下列作家中属于少数民族的有【】
血细胞比容测定增加的原因有
曲面体层片和根尖片均能显示的解剖结构是
高血压肝风上扰证的主方是
A、麦味地黄丸B、人参归脾丸C、参苓白术散D、香砂六君丸E、七宝美髯丸某男,45岁,肝肾不足,症见须发早白、遗精早泄、头眩耳鸣、腰酸背痛。宜选用的成药是()。
A.终身禁止从事药品生产经营活动B.处10万元以上50万元以下的罚款C.警告,责令改正,可以并处2万元以下罚款D.吊销药品批准证明文件、生产许可证、经营许可证,对相关责任人员处2万元以上20万元以下的罚款根据《药品管理法》药品上市许可持有人被责
要实现我国基本经济制度中公有制的主体地位必须()。
已知二次型f(x1,x2,x3)=x12+4x22+4x32+2λx1x2-2x1x3+4x2x3.当λ满足什么条件时f(x1,x2,x3)正定?
lookafter
最新回复
(
0
)