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1、Scientistshavea__________thattheyhaveclonedthefirsthumanembryo.Thishascausedmuchd____roundtheworld.Ontheonehand,somescientistsp______outthatifyoucloneanembryo,youcanproducev________humant________--suchasboneorlung组织–thatcouldbeusedtosavehumanlives.Onthe
2、otherhand,manypeople,includingsomescientists,disagreeandareafraidthat,ifmankindt______withnatureinthisway,wemaybeonourw______toproducingar_____Frankensten’smonster.Cloningisproducingane_____copyofaplantorananimalusingitsc___.…She(Dolly)wasbornin1996andd
3、iedineaely2003,atamuchyoungeragethann______....However,ing____,thescientistswerep______fortheirwonderfuls_______advance.IanWilmut,theScottishscientistwhocreatedDolly,iss_____thatsomescientistsarenowconsideringcloninghumanbeings.A______heresearchesclonin
4、g,hisi____hasneverbeentocreatecopiesofhumans.Instead,hethinksresearcheffortsshouldc_____oncreatingnew组织ando_____thatcanbeusedtoc______diseaseslikecancer.Eventhoughhumancloningiscausingalotofa____,itisgoodnewsforFayeWilson,a41-year-oldsaleswomanwhocannot
5、haveababy.“Iama______tohaveachild_____________(自己的).”Shesays“Idon’twanttoadopt_____________（他人的）child-______________________________(如果我有机会，我想立刻拥有一个克隆的孩子)”Whilecloninghumanembryosisnotlegalinmanycountries,somescientistsarealreadypushinga______withresear
6、chinordertoproduceaclonedhumanbaby.Chinahass________inproducingclonesofcowsandgoat,andcontinuestoresearchwaysinwhichcloningcanb_____mankind.The1stletterIfwe玩弄nature，wewillhavetodealwiththec____________.Whoknowswhatcouldhappen?HumanlifeWouldjustbecomeacr
7、optobeh_______oraproductfors______.The2ndletterIwouldliketoc______onyourarticle,“Theperfectcopy”.Ithinkthe科学的advancesm_______inyourarticlearef________(极好的)！Iamincompletea_______withhumancloningAftera____,scientistshavebeenchallengingm_____ideasforcentur
8、ies.Whyshouldwestopthemnow?Onap_____note,cloingwouldtotallyt______mylife.Sevenyearsago,my10-year-olddaughterdiedofheartf_____.Shewasbeautiful,cheerfulandbright.Imisshereverys_____day.1.beat2.bite3.bring4.choose5.catch6.deal7.drin
