英语翻译
Therearetwofactorsthatdetermineanindividual’sintelligence(一个人的智商).Thefirstisthesortofbrainheisbornwith.Humanbrainsdifferconsiderably(相当地),somebeingmorecapable(有能力的)thanothers.Butnomatterhowgoodabrainhehastobeginwith,anindividualwillhavealoworderofintelligenceunlesshehasopportunitiestolearn.Sothesecondfactoriswhathappenstotheindividual—thesortofenvironment(surroundings)inwhichheisbroughtup.Ifanindividualisdisabledenvironmentally,itislikelythathisbrainwillfailtodevelopandhewillneverobtain（获得）thelevelofintelligenceofwhichheiscapable.
Theimportanceofenvironmentindetermininganindividual’sintelligencecanbeshownbythecasehistory（个人历史）oftheidentical(相同的,同胞的)twinswerethreemonthsold,theirparentsdied,andtheywereplacedinseparatefosterhomes.Peterwasreared(抚养)byparentsoflowintelligenceinaseparatecommunitywithpooreducationalopportunities.Markwasrearedinthehomeofwell-to-doparentswhohadbeentocollege.Hewasreadtoasachild,senttogoodschools,andgiveneveryopportunitytobeencouragedintellectually.Thisenvironmentaldifferencecontinueduntilthetwinswereintheirlateteens,whentheyweregiventeststomeasuretheirintelligence.Mark’sI.Q.was125,twenty-fivepointshigherthantheaverageandfullyfortypointshigherthanhisidenticalbrother.Givenequalopportunities,thetwins,havingidenticalbrains,wouldhavetestedatroughlythesamelevel.
有没有英文厉害的高手直接用机器的就别来了啊