英语阅读,Doctorshaveknownforalongtimethatextremelyloudnoisescancausehearingdamageorloss.Thenoisecanbethesoundofajetairplaneormachinesinfactoriesorloudmusicorothercommonsoundsfoundathomeandatwork.Aperson

　　英语阅读,

　　Doctorshaveknownforalongtimethatextremelyloudnoisescancausehearingdamageorloss.Thenoisecanbethesoundofajetairplaneormachinesinfactoriesor

　　loudmusicorothercommonsoundsfoundathomeandatwork.

　　Apersononlyneedstohearthenoiseforlittlemorethanonesecondtobeaffected.

　　AnAmericanscientisthadfoundthatusingaspirincouldincreasethetemporaryhearinglossordamagefromloudnoise.Hedidanexperiment,usinganumberofmale

　　studentsatauniversitywhoallhadnormalhearing.Hegavethemdifferentamountsofaspirinfordifferentperiodsoftime,andthenhetestedtheirhearingability.He

　　foundthatstudentswhoweregivenfourgramsofaspirinadayfortwodayssufferedmuchgreatertemporaryhearinglossthanthosewhodidnotuseaspirin.Thehearingloss

　　wasabouttwiceasgreat.

　　ThescientistsaidmillionsofpersonsintheUnitedStatesusemuchlargeramountsofaspirinthanwereusedinthestudy.Hesaidthesepersonsfaceaseriousdangerof

　　sufferinghearinglossfromloudnoises.

　　1.Doctorshavelongknownthat______.

　　A)one’shearingdamageorlosshasnothingtodowithaloudnoise

　　B)hearingdamageorlosscanbecausedbyextremelyloudnoises.

　　C)loudmusicarenotharmfultotheear

　　D)commonsoundsathomearenotharmfultotheear

　　2.Thispassagesuggeststhatthenoisecanbe______.

　　A)thesoundofajetairplane

　　B)loudmusic

　　C)thesoundofmachinesinfactories

　　D)alloftheabove

　　3.Accordingtothispassage,oneconclusionyoucandrawisthataspirin______.

　　A)shouldneverbetakenmorethanfourgramsdaily

　　B)candamageone’shearingwhengivenmorethanfourgramsdaily

　　C)makeshearingdamagefromloudnoiseworse

　　D)increaseshearinglossbythreetimes

　　4.MillionsofAmericansareindangerofsufferinghearinglossbecausethey＿＿＿＿＿＿.

　　A)oftentakejetairplanesontrips

　　B)likelisteningtoloudmusic

　　C)aredrownedinloudnoises

　　D)taketoomuchaspirin