mankind is still evolving(进化),阅读答案

mankind is still evolving(进化),阅读答案

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时间:2018-10-21

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1、Mankindisstillevolving(进化),阅读答案  Mankindisstillevolving(进化),accordingtoarecentstudybyateamofscientistsledbyaYaleUniversityevolutionarybiologist.Butresearchsuggeststhatthenaturalselectionprocessisnolongerdrivenbysurvival,perhapsbecauseofdifferencesinwomen’sfertility(能生育性).  T

2、heteamexamined2,238womeninFramingham,Massachusetts,theUSandstudiedthemedicalhistoriesofsome14,000residentssince1948.  Theyfoundthatstrong,slightlyfatwomentendtohavemorechildren.Andifthistrendweretocontinueforthenext10generations,by2409theaveragewomanwouldbe2cmshorter,1kgheav

3、ier,andhaveahealthierheart.  Thatrateofevolutionisprettysimilartowhatweseeinplantsandanimals.Humans_don’_t_seem_to_be_any_exception,_theteamsaid.  Otherrecentgeneticresearchbacksupthatbelief.OnestudybyJohnHawks,ananthropologistattheUniversityofWisconsinatMadison,foundthatsom

4、e1,800humangenevariations(变异)arecommoninrecentgenerationsbecauseofevolution.Amongthechangesaremutations(突变)thatallowpeopletodigestmilkorresistmalaria(疟疾)andothersthatgovernbraindevelopment.  SincetheIndustrialRevolution,modernhumanshavegrowntallerandstronger.It’seasytoassume

5、thatevolutionismakinghumansfitter.ButaccordingtoanthropologistPeterMcAllister,thecontemporarymalehasevolvedphysicallyinto“thesorriestexampleofmaleeverontheplanet”.AnaverageNeanderthalwoman,McAllisternotes,couldhavebeatArnoldSchwarzeneggerinanarmwrestling(腕力)match.AndearlyAus

6、tralianAboriginescouldeasilydefeatUsainBoltina100mdash.  However,DouglasEwbank,oftheUniversityofPennsylvania,saysthatculturalfactorstendtohaveamuchgreaterimpactthannaturalselectiononfuturegenerations,sopeopletendtoignoreevolution’seffects.  And,despiteevidenceindicatingevol

7、utionstillworks,SteveJones,anevolutionarybiologistatUniversityCollegeLondon,thinksthattheimpactofevolutiononhumansisnotthemostimportant.“Whatmakeshumanswhatweareisinourminds,inoursociety,andnotinourevolution,”saidJones.  [语篇解读]科学家们发现人类还在不断地进化,但是他们认为自然选择对人类进化的影响已经没那么大了。  1.Wh

8、atdoestheunderlinedsentence“Humansdon’tseemtobeanyexception”imply?  A.Plant

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