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