Uptonow，somescientistshavesuggestedthatcloningexistingpeoplemightbeethically(伦理地)acceptableinsomecases.Onepossibilityisgeneratingreplacementforadyingrelative.Allsuchpossibilities，however，raisetheconcernthattheclonewouldbetreatedaslessthanacompleteindividual，becauseheorshewouldlikelysufferfromlimitationsandexpectationsbasedonthefamily'sknowledgeofthegenetic“twin”．Thoseexpectationsmightbefalse，becausehumanpersonalityisonlypartlydeterminedbygenes.Thecloneofanextrovert(性格外向的人)couldhaveaquitedifferentwayofbehavior.Clonesofathletes，moviestars，orscientistsmightwellchoosedifferentcareersbecauseofchanceeventsinearlylife.
Somepeoplehavealsopointedoutthatcouplesinwhichonememberisinfertile(不生育)mightchoosetomakeacopyofoneortheotherpartner.Butsocietyoughttobeconcernedthatacouplemightnottreatnaturallyachildwhoisacopyofjustoneofthem.Becauseothermethodsareavailableforthetreatmentofallknowntypesofinfertility，thetraditionalchoiceseemsmoreappropriate.Noneofthesuggestedusesofcloningformakingcopiesofexistingpeopleisethicallyacceptabletomywayofthinking，becausetheyarenotintheinterestsoftheresultingchild.ItshouldgowithoutsayingthatIamstronglyopposedtoallowingclonedhumanembryostodevelopsothattheycanbetissuedonors.
Inspiteofthis，itseemsclearthatcloningfromcultured(人工培育的)cellswillofferimportantmedicalopportunities.Predictionsaboutnewtechnologiesareoftenwrong；societalattitudeschange；unexpecteddevelopmentsoccur.Timewilltell.Butbiomedicalresearcherslookingintothepotentialofcloningnowhaveplentytodo.
36．Towardscloninganexistingperson，whatconcerndoestheauthorshow?
A．Theclonecreatedisunlikelytofulfillyourexpectations.
B．Theclonecreatedisethicallyunacceptable.
C．Theclonecreatedwillbemistreated.
D．Theclonecreatedwillhaveonedefectoranother.
37．Fromthetextweknowthataclonewill________.
A．bepartlysimilarinpersonalitytothepersonitiscreatedfrom
B．sharethesamecharacteristicswiththepersonitiscreatedfrom
C．ch