special english（英文） 课件

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1、VOASpecialEnglishQuestions:1、Howdowaxprotectandcleantheear?A、Waxtrapsdirtandothermatterandkeepinsectsout.B、Waxmighthelpprotectagainstinfections.C、Waxcankeepearsfromgettingtoowet.D、BothAandB.2、Manymaterialscansoftenthewax，except___?A、CitricacidB、GlycerinC、HydrogenperoxideD、Car

2、bamideperoxide3、WhichoneisINCORRECTofthefollowingstatement?A、Earwaxhasamedicalname:cerumenB、MostpeopleofEuropeanorEastAsianshavethe"wet"kind,Africanancestrycommonlyhave"dry"earwax.C、Extrawaxcanhardenandformablockagethatinterfereswithsoundwavesandreduceshearing.D、Irrigationisa

3、wayofremovingwax.ThisistheVOASpecialEnglishHealthReport.Somepeople'searsproducewaxlikebusylittlebees.Thiscanbeaproblemeventhoughearwaxappearstoserveanimportantpurpose.Itprotectsandcleanstheear.Ittrapsdirtandothermatteranditkeepsinsectsout.Doctorsthinkearwaxmightalsohelpprotec

4、tagainstinfections.Andthewaxyoilkeepsearsfromgettingtoodry.Soearwaxisgood.Itevenhasamedicalname:cerumen.Andtherearetwokinds.MostpeopleofEuropeanorAfricanancestryhavethe"wet"kind:thickandsticky.EastAsianscommonlyhave"dry"earwax.Butyoucanhavetoomuchofagoodthing.Theglandsintheea

5、rcanalthatproducethewaxmaketoomuchinsomepeople.Earwaxisnormallyexpelled;itfallsoutoftheearorgetswashedaway.Butextrawaxcanhardenandformablockagethatinterfereswithsoundwavesandreduceshearing.Peoplecanalsocauseablockagewhentheytrytocleanouttheirears,butonlypushthewaxdeeperinside

6、.Earwaxremovalissometimesnecessary.Butyouhavetouseasafemethodoryoucoulddoalotofdamage.ExpertsattheNationalInstitutesofHealth,N.I.H.,suggestsomewaystotreatexcessiveearwaxyourself.Thewaxcanbesoftenedwithmineraloil,glycerinoreardrops.Hydrogenperoxideorcarbamideperoxidemayalsohel

7、p.Anotherwaytoremovewaxisknownasirrigation.Withtheheadupright,takeholdoftheouterpartoftheear.Gentlypullupwardtostraightentheearcanal.Useasyringedevicetogentlydirectwateragainstthewalloftheearcanal.Thenturntheheadtothesidetoletthewaterout.TheexpertsatN.I.H.sayyoumayhavetorepea

8、tthisprocessafewtimes.Usewaterthatisbodytemperature.Ifthewateriscool