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1、2010年11月6日北京地区学位英语考试B卷真题答案PartIReadingComprehension(30%) Directions:Therearethreepassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Youshoulddecideonthebestchoiceandblackenthecorrespondinglet
2、terontheAnswerSheet. Passage1 Questions1to5arebasedonthefollowingpassage: Breastfeeding(母乳喂养)foramonthorlongerappearstoreduceawoman’sriskofgettingdiabetes(糖尿病)laterinlife,accordingtoanewstudy.Thebreastfeedinganddiabeteslinkhasbeenreportedinotherstudies,accordingto
3、researcherEleanorSchwarz.Yet,herstudymakesthelinkeasiertobelieve.HerstudyispublishedinajournalofmedicineinAmerica.Schwarzandhercolleagueslookedatdataaboutbreastfeedingpractices.Theyevaluateddataon2,233womenfromCalifornia.Ofthose,405werenotmothers,1,125weremotherswhob
4、reastfedforatleastamonth,and703weremotherswhohadneverbreastfed.Theywere40to78yearsold. AccordingtoSchwarz’sstudy,theriskofgettingadiagnosis(诊断)ofType2diabetesforwomenwhobreastfedalltheirchildrenforamonthorlongerwassimilartothatofwomenwhohadnotgivenbirth.Butmotherswh
5、ohadneverbreastfedwerenearlytwiceaslikelytodevelopdiabetesaswomenwhohadnevergivenbirth.Motherswhoneverbreastfedwereabout1.4timesaslikelytodevelopdiabetesaswomenwhobreastfedforonetothreemonths,Schwarzfound. Whileonemonthofbreastfeedingappearstomakeadifference,Schwarz
6、says,evenlongerisbetter.(76)“Previousstudieshaveshownthelongerthemombreastfeeds,themorebenefitforherbody."Manyexpertsrecommendbreastfeedingforsixmonthsandcontinuingforayear,shesays. Thediabetes-breastfeedinglinkisprobablyexplainedbybellyfat.Mothers,whodon’tbreastfee
7、d,astheygetolder,mayhavemorebellyfat,asbreastfeedinghelpsnewmotherstakeoffweight.“Bellyfatincreasestheriskofdiabetesasyougetolder,”shesays. Thefindingisn’tsurprisingatall,saysKimberlyGregory.Sheoftengivesadvicetowomenwhogetdiabetes(occurringduringpregnancy(怀孕)thatth
8、eyareatriskforlatergettingType2diabetesandsuggeststheybreastfeed.ThenewfindingswillprobablyinspireGregorytoaddtotheadviceshegivesmo
