2026年英语四级听力练习助听器知识重点词汇解析

2026年英语四级听力练习：助听器知识重点词汇解析题型一：词汇填空（共5题，每题2分）说明：根据上下文，选择最恰当的助听器相关词汇填空。1.Thehearingaidspecialistadjustedthe__________toimprovetheclarityofspeechfortheelderlypatient.A.amplificationB.frequencyC.volumeD.feedback2.Modernhearingaidsoftenuse__________technologytominimizebackgroundnoiseandenhancevoicerecognition.A.directionalmicrophonesB.wirelessconnectivityC.manualtuningD.batteryreplacement3.Someuserscomplainabout__________intheirearsafterwearinghearingaidsforextendedperiods.A.staticnoiseB.moisturebuildupC.frequencydistortionD.wirelessinterference4.Theaudiologistrecommendeda__________hearingaidforthechildwithmildhearingloss.A.behind-the-ear(BTE)B.in-the-ear(ITE)C.completely-in-the-canal(CIC)D.receiver-in-canal(RIC)5.The__________ofahearingaiddetermineshowwellitcanamplifysoundwithoutcausingdistortion.A.sensitivityB.bandwidthC.powerconsumptionD.impedance答案与解析1.A.amplification解析：Hearingaidsamplifysoundforuserswithhearingloss,andspecialistsadjusttheamplificationsettingstooptimizespeechclarity.2.A.directionalmicrophones解析：Directionalmicrophonesfocusonsoundsourcesdirectlyinfrontoftheuser,reducingnoisefromotherdirections—akeyfeatureinnoisyenvironments.3.B.moisturebuildup解析：Moisturebuildupisacommonissuewithhearingaids,especiallyinhumidclimatesorduringphysicalactivity.4.D.receiver-in-canal(RIC)解析：RICdevicesaresmallanddiscreet,idealforchildrenastheyarecomfortableandlesslikelytobedislodgedduringplay.5.B.bandwidth解析：Bandwidthreferstotherangeoffrequenciesahearingaidcanprocess,affectingsoundqualityandnaturalness.题型二：句子匹配（共4题，每题3分）说明：将描述助听器功能的句子与对应的解释匹配。1."Hearingaidswithwirelessconnectivityallowuserstostreamaudiodirectlyfromsmartphones."A.Thisfeatureisusefulforpairinghearingaidswithassistivelisteningdevices.B.Itenablesremoteadjustmentsviaasmartphoneapp.C.Ithelpsreducebackgroundnoisebyblockingexternalsignals.D.Itincreasesthebatterylifeofthedevice.2."Ahearingaidwitharechargeablebatteryeliminatestheneedforfrequentreplacements."A.Itismorecost-effectivethandisposablebatteries.B.Itprovideslongerusagetimepercharge.C.Itrequiresaspecialchargerforoptimalperformance.D.Itisidealforuserswithfrequenttravel.3."Hearingaidswithtinnitusmaskingcangeneratelow-levelsoundstoreduceringingintheears."A.Thisfeatureisbeneficialforuserswithseverehearingloss.B.Itisoftenusedincombinationwithnoisereductiontechnology.C.Itcanbeadjustedtomatchtheuser’spreferredsoundprofile.D.Itisonlyeffectiveinquietenvironments.4."Ahearingaidwithaprogrammablesettingallowsuserstocustomizesoundpreferences."A.Itincludesmultipleenvironments(e.g.,conversation,TV)forquickswitching.B.Itrequiresaprofessionaltoadjustthesettingsforoptimalperformance.C.Itautomaticallyadjuststotheuser’sspeechandhearingpatterns.D.Itisonlycompatiblewithcertainsmartphonemodels.答案与解析1.B.Itenablesremoteadjustmentsviaasmartphoneapp.解析：Wirelessconnectivityprimarilyfacilitatescontrolandupdatesthroughmobiledevices.2.B.Itprovideslongerusagetimepercharge.解析：Rechargeablebatteriesaredesignedforextendeduse,reducingtheneedforfrequentreplacements.3.B.Itisoftenusedincombinationwithnoisereductiontechnology.解析：Tinnitusmaskingworksalongsidenoisereductiontoimproveoverallsoundquality.4.A.Itincludesmultipleenvironments(e.g.,conversation,TV)forquickswitching.解析：Programmablesettingsoftenallowuserstosavepresetsfordifferentscenarios.题型三：段落填空（共3题，每题4分）说明：根据所听段落内容，填入缺失的助听器相关词汇。Passage1Ahearingaidspecialistexplainedthatmoderndevicescomewithadvancedfeatureslike__________,whichcanfilteroutbackgroundnoisewhilefocusingonspeech.Usersshouldalsobeawareof__________,asexcessivemoisturecandamagethedevice.Forchildren,__________hearingaidsarerecommendedduetotheirsizeandcomfort.Passage2Theaudiologistdiscussedtheimportanceof__________inselectingahearingaid,asdifferentfrequenciesaffectsoundperception.Someusersexperience__________,asensationofbuzzingorstatic,whichmayrequireadjustments.Additionally,__________technologyhelpsusersstreamaudiofromsmartphones,enhancingconvenience.Passage3Apatientaskedaboutthebenefitsof__________hearingaids,whicharenearlyinvisibleintheear.Thespecialistnotedthatwhiletheyarediscreet,theymaynotbesuitableforallusersduetotheirlimitedbatterylife.However,__________settingsallowuserstocustomizethesoundfordifferentactivities,suchaswatchingTVorbeinginacrowd.答案与解析1.Passage1-directionalmicrophones解析：Directionalmicrophonesaredesignedtoisolatespeechinnoisyenvironments.-moisturebuildup解析：Moistureisacommonconcernwithhearingaids,especiallyinhumidregions.-receiver-in-canal(RIC)解析：RICdevicesaresmallandsuitableforchildrenduetotheircomfortanddurability.2.Passage2-sensitivity解析：Sensitivitydetermineshowwellahearingaiddetectsfaintsounds.-feedback解析：Feedbackisahigh-pitchedbuzzingsoundcausedbyimproperfitorsettings.-wirelessconnectivity解析：Thisfeatureallowsseamlessstreamingofaudiofromsmartphones.3.Passage3-completely-in-the-canal(CIC)解析：CICdevicesarenearlyinvisiblebutmayhaveshorterbatterylife.-programmablesettings解析：Programmablesettingsenablecustomizationfordifferentlisteningenvironments.题型四：选择题（共6题，每题2分）说明：根据所听内容，选择最符合助听器相关知识的选项。1.Whatisacommonissuewithbehind-the-ear(BTE)hearingaids?A.Theyaretoovisibleforsomeusers.B.Theyhavelimitedbatterylife.C.Theyaredifficulttoadjustfordifferentenvironments.D.Theyareunsuitableforchildren.2.Howdoesnoisereductiontechnologyhelphearingaidusers?A.Itamplifiesbackgroundnoisetoimproveclarity.B.Itblocksallsoundstoreducestrain.C.Itfiltersoutexcessivenoisewhilepreservingspeech.D.Itrequiresmanualadjustmentinquietsettings.3.Whatisakeyadvantageofrechargeablehearingaids?A.Theyarecheaperthandisposablemodels.B.Theyprovidelongerusagetimepercharge.C.Theyrequirelessmaintenancethanwiredoptions.D.Theyareonlycompatiblewithcertaindevices.4.Whyaredirectionalmicrophonesbeneficialincrowdedplaces?A.Theyamplifyallsoundsequally.B.Theyfocusonspeechfromaspecificdirection.C.Theyreducetheuser’sownvoice.D.Theyareonlyusefulinquietenvironments.5.Whatshouldusersdoiftheyexperiencemoisturebuildupintheirhearingaids?A.Leavetheminadryenvironmentforafewhours.B.Increasetheamplificationtocompensate.C.Replacethemimmediatelywithanewpair.D.Usethemasnormaluntiltheissueresolves.6.Whatisatypicalfeatureofhearingaidsforelderlyusers?A.High-frequencyamplificationtoimprovespeechclarity.B.Discreetdesignstoavoidsocialstigma.C.Automaticvolumecontroltopreventloudsounds.D.Waterproofingforoutdooractivities.答案与解析1.A.Theyaretoovisibleforsomeusers.解析：BTEhearingaidsarelargerandmor