- 阅读理解A
题干：Beingamanhasalwaysbeendangerous.Thereareabout105malesbornforevery100females,butthisratiodropstonearbalanceattheageofmaturity,andamong70-year-oldstherearetwiceasmanywomenasmen.Butthegreatuniversalofmalemortalityisbeingchanged.Now,boybabiessurvivealmostaswellasgirlsdo.Thismeansthat，forthefirsttime，therewillbeanexcessofboysinthosecrucialyearswhentheyaresearchingforamate.Moreimportant，anotherchancefornaturalselectionhasbeenremoved.Fiftyyearsago,thechanceofababy(particularlyaboybaby)survivingdependedonitsweight.Akilogramtoolightortooheavymeantalmostcertaindeath.Todayitmakesalmostnodifference.Sincemuchofthevariationisduetogenes,onemoreagentofevolutionhasgone.Thereisanotherwaytocommitevolutionarysuicide：stayalive,buthavefewerchildren.Fewpeopleareasfertileasinthepast.Exceptinsomereligiouscommunities,veryfewwomenhas15children.Nowadaysthenumberofbirths,liketheageofdeath,hasbecomeaverage.Mostofushaveroughlythesamenumberofoffspring.Again,differencesbetweenpeopleandtheopportunityfornaturalselectiontotakeadvantageofithavediminished.Indiashowswhatishappening.Thecountryofferswealthforafewinthegreatcitiesandpovertyfortheremainingtribalpeoples.Thegrandmediocrityoftoday-everyonebeingthesameinsurvivalandnumberofoffspring-meansthatnaturalselectionhaslost80%ofitspowerinupper-middle-classIndiacomparedtothetribes.Forus,thismeansthatevolutionisover;thebiologicalUtopiahasarrived.Strangely,ithasinvolvedlittlephysicalchange.Nootherspeciesfillssomanyplacesinnature.Butinthepast100000years-eventhepast100years-ourliveshavebeentransformedbutourbodieshavenot.Wedidnotevolve，becausemachinesandsocietydiditforus.Darwinhadaphrasetodescribethoseignorantofevolution：they“lookatanorganicbeingasasavagelooksataship，asatsomethingwhollybeyondhiscomprehension."Nodoubtwewillremembera20thcenturywayoflifebeyondcomprehensionforitsugliness.ButhoweveramazedourdescendantsmaybeathowfarfromUtopiawewere，theywilllookjustlikeus.
题目：The author argues that our bodies have stopped evolving because_____. - A 、life has been improved by technological advance
- B 、the number of female babies has been declining
- C 、our species has reached the highest stage of evolution
- D 、the difference between wealth and poverty is disappearing
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参考答案【正确答案：A】
细节题。第三段四、五句指出，在过去的10万年甚至过去的100年中，我们的生活得到了改 变，但是身体却没有改变，我们（的身体）没有进化的原因是机器和社会代替我们进化了。即 机器和社会进步造成我们身体进化的停止。因此Α选项正确。
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