全国职称英语等级考试样题--卫生类第一部分阅读理解(75分)Passage1Untilthetwentiethcenturycigaretteswerenotanimportantthreat(威胁)topublichealth.Menusedtobaccomainlyintheformofcigars(雪茄烟),chewingtobacco,pipetobacco(烟草),andsnuff(鼻烟).Mostwomendidnotusetobaccoatall.Thecigaretteindustrybeganinthe1870swiththedevelopmentofthecigarettemanufacturingmachines.Thismadeitpossibletoproducegreatnumbersofcigarettesveryquickly,anditreducedtheprice.Todaycigarettessmokingisawidespreadhabit.Aboutforty-threepercentoftheadultmenandthirty-onepercentoftheadultwomenintheUnitedStatessmokecigarettesregularly.Itisencouragingtonote,however,thatmillionsofpeoplehavegivenupthesmokinghabit.Seventy-fivepercentofthemalepopulationandforty-sixpercentofthethesemenandelevenpercentofthewomenhavestoppedsmoking.Thenumberofpersonswhohavegivenupsmokingisincreasing.Menasagroupsmokemorethanwomen.Amongbothmenandwomentheagegroupwiththehighestproportion(比例)ofsmokersistheagegroup24-44.Income,education,andoccupationallplayapartindeterminingaperson’ssmokinghabits.Citypeoplesmokemorethanpeoplelivingonfarms.Well-educatedmenwithhighincomesarelesslikelytosmokecigarettesthanmenwithfeweryearsofschoolingandlowerincomes.Ontheotherhandifawell-educatedmanwithahighincomesmokesasall,heislikelytosmokemorepacksofcigarettesperday.Thesituationissomewhatdifferentforwomen.Thereareslightlymoresmokersamongwomenwithhigherfamilyincomesandhighereducationthanamongthelowerincomeandlowereducationalgroups.Thesemorehighlyeducatedwomentendtosmokemoreheavily.Amongteenagers(少年)thepicturesissimilar.Therearefewerteenagersmokersfromupper-income,well-educatedfamiliesandfewerfromfamilieslivinginfarmareas.Highschoolstudentswhoarepreparingforcollegearelesslikelytosmokethanthosewhodonotplantocontinuetheireducationafterhighschool.Childrenaremostlikelytostartsmoking,ifoneorbothoftheirparentssmoke.1.Menusetobaccomainlyin________formsinthepast.○A.one○B.two○C.three○D.four2.Thecigaretteindustrybegan________.○A.onehundredyearsago○B.attheturnofthecentury○C.intheeighteenseventies○D.intheeighteencentury3.IntheUnitedStates_______smokecigarettes.○A.aboutforty-threepercentofpeople○B.aboutthirty-onepercentofpeople○C.onlyoldpeople○D.aboutforty-threepercentofthegrown–upmenandthirty-onepercentofthegrown–upwomen4.Aman’ssmokinghabitispartlydeterminedby________.○A.hisincome○B.hiseducation○C.hisoccupation○D.alloftheabove5.Children_________tostartsmoking,iftheirparentssmoke.○A.aremostlikely○B.arelesslikely○C.hate○D.donotwantPassage2Manyofusbelievethataperson’smindbecomeslessactiveashegrowsolder.Butthisisnottrue,accordingtoDr.Jarvik,professorofpsychiatry(精神病学)attheUniversityofCalifornia.Shehasstudiedthementalfunctioningofagingpersonsforseveralyears.Forexample,oneofherstudiesconcerns136pairsofidenticaltwins(孪生儿),whowerefirstexaminedwhentheywerealready60yearsold.AsDr.Jarvikcontinuedthestudyofthetwinsintotheir70sand80s,theirmindsdidnotgenerallydeclineaswasexpected.However,therewassomedeclineintheirpsycho-motorspeed.Thismeansthatittookthemlongertoaccomplishmentaltasksthanitusedto.Butwhenspeedwasnotafactor,theylostverylittleintellectualabilityovertheyears.Ingeneral,Dr.Jarvik’sstudieshaveshownthatthereisnodeclineinknowledgeorreasoningability.Thisistruenotonlywiththoseintheir30sand40s,butwiththoseintheir60sand70saswell.Itistrueolderpeoplethemselves...
