完型填空HaveyoueverimaginedthatyoucouldbeclonedlikeDollythesheepinthenottoodistantfuture?Thenewsthatahumanembryo(胚胎)hasbeen1clonedforthefirsttimehascausedmixedreactions

　　完型填空

　　HaveyoueverimaginedthatyoucouldbeclonedlikeDollythesheepinthenottoodistantfuture?

　　Thenewsthatahumanembryo(胚胎)hasbeen1clonedforthefirsttimehascausedmixedreactions(反映).

　　The2wascarriedoutbyscientistsfromtheAdvancedCellTechnologyInc(ACT)inMassachusettsUS.Thegroup3thenewsonNovember25.

　　“Thisis4humanbeing.Acloneisaliveitwalksitbreathes”saidJamieGrifo5onthestudyofcloningatNewYorkUniversitySchoolofMedicine.

　　“Thisisasetofcellsinalabthatwillbeusedto6someone'slife.”

　　Suchresearchcouldleadtotreatmentfor7suchasheartdiseasesAIDSandevencancer8scientists.

　　Despitehighhopesfromotherscientiststhenewsraisedconcernsimmediatelyfromreligiousandpoliticalleaders.Several9intheUSdonotallowhumancloning.PresidentGeorgeW.Bushalsomadeitclearthatheis10 anytypeofhumancloning.HoweverthescientistsatACTsaidtheyhavenointerestatpresentin11anearlyembryointo__12__.

　　AnimalshavebeenclonedrepeatedlysinceDollythesheep13in1997.Andtherewerenorealtechnical14tostandinthewayofscientistsmakingaclonedhumanembryo.

　　Thistimetheresearchgroupusedtraditionalcloningtechnologywithahuman15

　　16itwasgivenDNAfromanadultcelltheeggbeganto__17__.__18__itwasstoppedfrombecomingababy--atastageinwhichitwas19aballofcells.The20technologyhasbeenusedtoclonesheepcattleandmonkeys.

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