PartIIICloze Directions:Therearetwentyblanksinthefollowingpassage.Foreachblanktherearefourchoices.ChoosetheonethatbestfitsintothepassageandthenmarksyouranswerontheAnswerSheet. Therearetwofactorswhichdetermineanindividual’sintelligence.Thefirstisthesortofbrainheisborn61.Humanbrainsdifferconsiderably,62beingmorecapablethanothers.63nomatterhowgoodabrainhehastobeginwith,anindividualwillhavealoworderofintelligence64hehasopportunitiestolearn.Sothesecondfactoriswhat65totheindividual—thesortofenvironmentinwhichheisbrought66.Ifanindividualishandicapped(受阻碍)67,itislikelythathisbrainwill68todevelopandhewill69attainthelevelofintelligenceofwhichheis70. Theimportanceofenvironmentindetermininganindividual’sintelligencecanbe71bythecasehistoryoftheidenticaltwins,PeterandJohn.Whenthetwinswerethreemonthsold,theirparentsdied,andtheyareplacedin72foster(寄养)homes.Peterwasrearedbyparentsoflowintelligenceinan73communitywithpooreducational74.John,75,waseducatedinthehomeofwell-to-doparentswhohasbeentocollege.Thisenvironmental76continueduntilthetwinswere77theirlateteens,78theyweregiventeststo79theirintelligence.John’sI.Q.(智商)was125,twenty-fivepointshigherthanthe80andfullyfortypointshigherthanhisidenticalbrother. 61.A.forB.byC.withD.in 62.A.mostB.someC.manyD.few 63.A.ButB.ForC.StillD.And 64.A.ifB.thoughtC.asD.unless 65.A.refersB.appliesC.happensD.concerns 66.A.aboutB.upC.forwardD.forth 67.A.relativelyB.intelligentlyC.regularlyD.environmentally 68.A.failB.helpC.manageD.stop 69.A.everB.neverC.evenD.nearly 70.A.ableB.capableC.availableD.acceptable 71.A.demonstratedB.deniedC.neglectedD.ignored 72.A.separateB.similarC.remoteD.individual 73.A.omittedB.isolatedC.enclosedD.occupied 74.A.possibilitiesB.opportunitiesC.capacitiesD.responsibilities 75.A.moreoverB.consequentlyC.thenD.however 76.A.exceptionB.divisionC.differenceD.alteration 77.A.inB.byC.atC.for 78.A.whileB.sinceC.whenD.because 79.A.estimateB.countC.decideD.measure 80.A.averageB.commonC.usualD.ordinary