首页
登录
职称英语
The evolution of speech may have been the most important factor of all. When
The evolution of speech may have been the most important factor of all. When
游客
2024-06-04
35
管理
问题
The evolution of speech may have been the most important factor of all. When early man mastered the loom (工具) of language, his progress accelerated dramatically. Through the spoken word a new invention in tool-making, for example, could be communicated to everyone; in this way the innovativeness of individual enhanced the survival prospects of his fellows, and the creative strength of one became the strength of all. More important, through language the ideas of one generation could be passed on to the next, so that each generation inherited not only the genes of its ancestors but also their collective wisdom, transmitted through the magic of speech. A million years ago, when this magic was not yet perfected and language was a cruder art, those bands of man who possessed the new gift in the highest degree were strongly favored in the struggle for existence. But the fabric of speech is woven out of many threads. The physical attributes of a voice bow, lips, and the tongue were among the necessary traits; but a good brain was also essential to frame an abstract thought or represent an object by a word.
Now the law of the survival of the fittest began to work on the population of early man. Steadily, the physical apparatus for speech improved. At the same time, the center of the brain devoted to speech grew in size and complexity, and in the course of many generations the whole brain grew with them. Once more, as with the use of tools, reciprocal forces came into play in which speech stimulated better brains, and brains improved the art of speech, and the curve of brain growth spiraled upward.
Which factor played the most important role in the evolution of human intelligence? Was it the most pressure of the Ice-Age climate? Or tools? Or language? No one can tell; all worked together, through Darwin’s law of natural selection, to produce the dramatic increase in the size of the brain that has been recorded in the fossil record in the last million years. The brain reached its present size about one hundred thousand years ago, and its growth ceased. Man’s body had been shaped into its modern form several hundred thousand years before that. Now brain and body were complete. Together they made a new and marvelous creature, charged with power, intelligence, and creative energy. His wits had been honed (磨砺) by the fight against hunger, cold, and the natural enemy; his form had been molded in the crucible (严峻考验) of adversity. In the annals of anthropology his arrival is celebrated by a change in name, from Homo erectus—the Man who stands erect—to Homo sapiens—the Man of wisdom. [br] The main point of this passage is ______.
选项
A、evolution of speech
B、darwin’s law of natural selection
C、progress of human brains
D、evolution of human intelligence
答案
D
解析
主旨题。根据第三段第一句,哪个因素在人类智力进化过程中起着最重要的作用,而前两段介绍了语言在此过程中的作用,可以看出本文主要讨论人类智力进化问题。
转载请注明原文地址:https://tihaiku.com/zcyy/3619594.html
相关试题推荐
Theevolutionofspeechmayhavebeenthemostimportantfactorofall.When
Theevolutionofspeechmayhavebeenthemostimportantfactorofall.When
Theevolutionofspeechmayhavebeenthemostimportantfactorofall.When
Wildducksandothermigratory(迁移的)birdscouldbeimportantcarriersofdea
Wildducksandothermigratory(迁移的)birdscouldbeimportantcarriersofdea
Wildducksandothermigratory(迁移的)birdscouldbeimportantcarriersofdea
Itisimportantthat__________________(日程表不要满得没有时间放松和娱乐).theschedule(should
Theworkmenthink__________________________(遵守安全规则很重要).itveryimportanttoc
Theroleofthefarmerhasalwaysbeenanimportantone.Twohundredyearsa
Theroleofthefarmerhasalwaysbeenanimportantone.Twohundredyearsa
随机试题
Thehumanbraincontains10thousandmillioncellsandeachofthemmayhave
Thedifferencebetweenaliquidandagasisobvious【C1】______thecondition
Afewcommonmisconceptions.Beautyisonlyskin-deep.One’sphysicalasset
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthe
Apple’sStanceHighlightsaMoreConfrontationalTechIndustry[A]T
黑龙江的地貌特征是()。A.五山 B.一草 C.一水 D.三水
磁石的主治病证不包括A.心神不宁,惊悸,失眠B.癫痫C.风热客肺,气逆咳喘D.头
治疗糖尿病酮症酸中毒时,快速补充碳酸氢钠可能导致( )。A.脑水肿加重 B.
有关再贴现率的表述错误的是( )。A.该利率的提高会减少商业银行资金成本,增加
下列做法中,属于不诚实劳动的有( )。多选A.某员工利用因特网技术成功下载了竞
最新回复
(
0
)