AsmanyasoneinfiveUSteenagershavesomedegreeofhearingloss,accordingtoresearchers.Theysaytheproblemisgrowing.Teenagersreallydon’tpayattentiontohowmuchnoisetheyareexposed(暴露)to,JosefShargorodskyofBrig
AsmanyasoneinfiveUSteenagershavesomedegreeofhearingloss,accordingtoresearchers.
Theysaytheproblemisgrowing.
Teenagersreallydon’tpayattentiontohowmuchnoisetheyareexposed(暴露)to,JosefShargorodskyofBrighamandWomen’sHospitalinBostontoldReuters.“Oftenpeoplewon’tnoticeit,butevenslighthearinglossmayaffectlanguagedevelopment,”saidShargorodsky,oneoftheresearchers.
Thestudycomparedsurveysfromtheearly1990sandthemid-2000s.Eachincludedafewthousandteenagers.Inthefirstsurvey,about15percentofteenagershadsomedegreeofhearingloss.Some15yearslater,thatnumberhadrisenbyathird,tonearly20percent.
“Thiscertainlyisbignews,”saidAlisonGrimes,aneardoctor.Hearinglossisverycommoninoldpeople,Grimessaid,butsheaddedthatitwasworryingtoseeithappenintheyoungeragegroup.
Inbabiesandyoungchildren,hearingproblemsareknowntoslowlanguagedevelopment.Thescienceislessclearforteenagers,butitiseasytoimaginehowbeinghardofhearingcouldaffectlearning,saidGrimes,.
Thereasonsfortherisearestillunclear.Whenresearchersaskedteenagersaboutnoiseexposure–onthejob,atschoolorfromactivities,forexample–theteenagersdidn’treportanychange.ButShargorodskysaidthatmightnotbetrue.“Weknewfrombeforethatitisdifficulttoaskthisagegroupaboutnoiseexposure–theyunderestimate(低估)it.”FewpeoplewouldcallitnoisewhentheylistentomusicontheirMP3player,forexample.“Thereisadifferencebetweenwhatwethinkisloudandwhatisharmfultotheear,”saidGrimes.
Althoughit’snotclearthattheMP3playerscauseteenagers’hearingloss,Grimessaiditwasstillagoodideatoturndownthesoundandtakeshortbreaksfromlistening.
小题1:Accordingtotheresearchers,inaUSclassof40students,about____studentshavesomedegreeofhearingloss.A.oneB.fiveC.sixD.eight小题2:Whichofthefollowingstatementsistrueaccordingtothearticle?A.Slighthearinglossdoesnotinfluencelearning.B.Onlyafewoldpeoplehavehearingproblems.C.Hearingproblemscanslowlanguag