2015大学英语四级作文天天练：人口爆炸思维导图

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2015大学英语四级作文天天练：人口爆炸思维导图

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　　9. The World Population Explosion 　　The human race has experienced a consistent increase in population since the beginning of its history. Famine and disease have done little t

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9.TheWorldPopulationExplosion

Thehumanracehasexperiencedaconsistentincreaseinpopulationsincethebeginningofitshistory.Famineanddiseasehavedonelittletooffset(抵消)thissteadyincrease.Toomanypeopleareaddedannuallytothepopulationoftheworld.Soboththecausesofpopulationincreaseandtheresultsofhavingmorepeopleareworthcarefulstudy.

Cultureevolutionisthemajorfactorresponsibleforpopulationincrease.Earlyinhumandevelopment,peopleinventedtoolstohuntanimals.Latertheybuiltshelterstoprotectthemselves.Stepbystep,theymadelifeeasier.Asaresult,fewerdiedfromnaturalforces,suchasharshclimateanddisease.

Inthepast,whenpopulationgrew,therewasunexploredterritorytoinhabit.Butnow,almostallthehabitablelandhasbeenexplored.

Theworld'spopulationmayreach8.7billionin2033.Itisclearthatworldpopulationisaseriousissuethatneedscarefulattention.Humanbeingsareuniquetosolveproblemsthroughculturalevolution.(发展)Facingtheworldpopulationexplosioninthenearfuture.Wemustcarryoutthebirthcontrolprograminordertosavethemankindandsavetheworld.

大学英语四、六级考试---四级写作备考资料