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1、北京2010年11月成人英语三级考试真题（B卷）PartIReadingComprehension(30%)Directions:Therearethreepassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.YoushoulddecideonthebestchoiceandblackenthecorrespondingletterontheAnswerSheet。Passage1Questi
2、ons1to5arebasedonthefollowingpassage:Breastfeeding(母乳喂养)foramonthorlongerappearstoreduceawoman’sriskofgettingdiabetes(糖尿病)laterinlife,accordingtoanewstudy.Thebreastfeedinganddiabeteslinkhasbeenreportedinotherstudies,accordingtoresearcherEleanorSchwarz.Yet,herstudymakesthelinkeasiertobelieve.Herst
3、udyispublishedinajournalofmedicineinAmerica.Schwarzandhercolleagueslookedatdataaboutbreastfeedingpractices.Theyevaluateddataon2,233womenfromCalifornia.Ofthose,405werenotmothers,1,125weremotherswhobreastfedforatleastamonth,and703weremotherswhohadneverbreastfed.Theywere40to78yearsold。AccordingtoSch
4、warz’sstudy,theriskofgettingadiagnosis(诊断)ofType2diabetesforwomenwhobreastfedalltheirchildrenforamonthorlongerwassimilartothatofwomenwhohadnotgivenbirth.Butmotherswhohadneverbreastfedwerenearlytwiceaslikelytodevelopdiabetesaswomenwhohadnevergivenbirth.Motherswhoneverbreastfedwereabout1.4timesasli
5、kelytodevelopdiabetesaswomenwhobreastfedforonetothreemonths,Schwarzfound。Whileonemonthofbreastfeedingappearstomakeadifference,Schwarzsays,evenlongerisbetter.(76)“Previousstudieshaveshownthelongerthemombreastfeeds,themorebenefitforherbody。”Manyexpertsrecommendbreastfeedingforsixmonthsandcontinuing
6、forayear,shesays。Thediabetes-breastfeedinglinkisprobablyexplainedbybellyfat.Mothers,whodon’tbreastfeed,astheygetolder,mayhavemorebellyfat,asbreastfeedinghelpsnewmotherstakeoffweight.“Bellyfatincreasestheriskofdiabetesasyougetolder,”shesays。Thefindingisn’tsurprisingatall,saysKimberlyGregory.Sheoft
7、engivesadvicetowomenwhogetdiabetes(occurringduringpregnancy(怀孕)thattheyareatriskforlatergettingType2diabetesandsuggeststheybreastfeed.ThenewfindingswillprobablyinspireGregorytoaddtotheadviceshegivesmoms-to-beaboutthebe
