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1、第一篇：1.Today,asineveryotherdayoftheyear,morethan3000U.S.adlescentswillsmoketheirfirstcigaretteontheirwaytobecomingregularsmokersasadults.Duringtheirlifetime,itcanbeexpectedthatofthese3000about23willbemurdered,30willdieintrafficaccidents,andnearly750willbekilledbyasmoking-relateddise
2、ase.Thenumberofdeathsattributedtocigarettesmokingoutweithtsallotherfactors,whethervoluntaryorinvoluntary,asacauseofdeath.Sincethelate1970s,whendailysmokingamonghighschoolseniorsreached30precent,smokingratesamongyouthhavedeclined.Whilethedeclineisimpressive,severalimportantissuesmus
3、tberaised.First,inthepastseveralyears,smokingratesamongyouthhavedeclinedverylittle.Second,inthelate1970s,smokingamongmalehighschoolseniorsexceededthatamongfemalebynearly10percent.Thestatisticisreversing.Third,severalrecentstudieshaveindicatehighschooldropoutshaveexcessivelyhighsmok
4、ingrates,asmuchas75percent.Finally,thouthsignificantdeclinesinadolescentsmokinghaveoccurredinthepastdecade,nodefinitereasonsforthedeclineexist.Withinthiscontext,theNaionalCancerInstiute(NCI)beganitscurrentefforttodeterminethemosteffecivemeasurestoreducesmokingleveslamongyouth.1.Acc
5、ordingtotheauthor,thedeathsamongyoutharemainlycausedby_____.A.trafficaccidentsB.smoking-relateddeseaseC.murderD.allofthese2.Everydaythereareover_____highschoolstrdentswhowillbecomeregularsmoker.A.75B.23C.30D.30003.By"dropout"theauthormeans______.A.studentswhofailedtheexaminationB.s
6、tudentswholeftschoolC.studentswholosttheirwayD.studentswhoweredrivenoutofschool4.Thereasonfordecliningadolescentsmokingisthat________.A.NCIhastakeneffectivemeasuresB.smokingispreventedamonghighschoolseniorsC.therearemanysmokerswhohavediedofcancerD.noneofthese5.Whatisimpliedbutnotst
7、atedbytheauthoristhat________.A.smokingratesamongyouthhavedeclinedverylittleB.therearenowmorefemalethanmalesmokersamonghighschoolseniorsC.highsmokingratesareduetotheinceaseinwealthD.smokingathighschoolarefromlowsocio-economicbackgrounds第二篇：Asthepaceoflifecontinuestoincrease,wearefa
8、stlosingtheartofrelaxation
