英文双元音发音完整版课件

THEFIRSTLESSONOFTHESCHOOLYEARCompleteversionofEnglishdiphthongpronunciatio目CONTENTSFundamentalsofdiphthongpromotionClassificationandPronunciationofDiphthongsThepromotionofdiphthongsinwords录目CONTENTSCommonproblemsandcorrectionmethodsfordiphthongpromotionPracticeandimprovementofdiphthongpromotion录01Fundamentalsofdiphthongpromotion123DiphthongsarepromotedinthecollapsibleinitialpositionSubsidiaryinitialpositionDiphthongsarecharacterizedbyasmoothtransitionfromonevoicesoundtoanotherTransitionqualityDiphthongsarelongerthansimplevotesDurationThepronunciationcharacteristicsofdiphthongs

PronunciationtechniquesfordiphthongsLiftedjawTopromotediphthongscorrectly,thejawshouldbeliftedslightlytowardsthecheekbonesBlendingDiphthongsshouldbeimprovedasablendoftwovowelsounds,withasmoothtransitionbetweenthemCentralizationThetongueshouldbepositionedinthecentralpartofthesouthduringthepromotionofdiphthongsPracticewithIPAsymbols01IPAsymbolscanbeusedtorepresentpathologiesandprovideamoreaccuraterepresentationoftheirpromotionIntroduction02Practicingimprovingnativespeakers'promotionofdiphthongscanhelpimproveone'sownpromotionRecordingandfeedback03RecordingoneselfpromotingdiphthongsandreceivingfeedbackfromateacherorlanguageexpertcanhelpidentifyandcorrectpronunciationerrorsPracticepromotionofdiphthongs01ClassificationandPronunciationofDiphthongsEU(asin"feud")Thevowelispronouncedwiththelipsrounded,similartothevowelin"few"AI(asin"aid")Thevowelispromotedasalongvowel,startingwiththelipsroundedandthenflattenedThesoundissimilartothevowelin"say"Au(asin"thought")Thevowelispronouncedwiththelipsrounded,similartothevowelin"saw"Ei(asin"eight")Thevowelispronouncedwiththelipsflattered,similartothevowelin"ate"Thefirsttypeofdiphthong:ai,au,ei,euSecondtypeofdiphthong:ae,aɪ,əʊ,ɔɪAe(asin"cat")Thevowelispronouncedwiththelipsflattered,similartothevowelin"bad"Aɪ(asin"mine")Theswellstartswiththelipsroundedandthenflattened,similartotheswellin"my"əʊ(asin"go")Thevoteisproposedwiththelipsflattered,similartothevotein"no"ɔɪ(asin"boy")Theswellstartswiththelipsflatteredandthenrounded,similartotheswellin"oar"01ThepromotionofdiphthongsinwordsGeneralruleInstressedvegetables,EnglishdiphthongsaretypicallypromotedasalongvowelsoundExceptionsThereareexceptionstothisrule,suchasthediphthongsinwordslike"oy"in"boy"and"ei"in"height"PromotionofdiphthongsinstressedvegetablesInunstressedvegetables,EnglishdiphthongsaretypicallypromotedasashortvowelsoundSomediphthongsmaybepropagatedasalongvowelsoundinunstressedaggregates,soasthediphthongin"neighbor"PronunciationofdiphthongsinunstressedaggregatesExceptionsGeneralruleGeneralruleWhenaconsonantisbetweentwovowels,thesecondvoweliscommonlypromotedasadiphthongExceptionsThereareexceptionstothisrule,suchasthediphthongin"ai"in"mail"Thepromotionofdiphthongsinlinking01Commonproblemsandcorrectionmethodsfordiphthongpromotion03ExampleThediphthongintheword"coin"shouldbepronouncedasasinglesound,notas"coeein"01ProblemDiphthongsareoftenpropagatedastwoseparatevotes02CorrectionPracticesayingdiphthongsasasinglesound,maintainingasmoothtransitionfromonevotetothenextInaccurateassociationofdiphthongsSomepeoplefinditdifficulttoproducethespecificsoundofdiphthongsProblemListentonativespeakersandinitiatetheirpromotionPracticesayingdiphthongsindifferentcontextsandwithdifferentaccountsCorrectionThediphthongintheword"boy"shouldbepronouncedas"boee",notas"bo-i"ExampleDifficultlyinpronouncingdiphthongsSomepeople'spromotionofdiphthongssoundsunnaturalorforcedProblemPayattentiontothenaturalnessofthesound,ensuringthatthetransitionbetweenvotesissmoothandeffortlessCorrectionThediphthongintheword"oil"shouldbepromotedas"oyil",maintainingasmoothtransitionfromthe"oy"tothe"il"ExampleTheproblemofunnaturalassociationofdiphthongs01PracticeandimprovementofdiphthongpromotionListeningtorecordingsisanimportantstepinimprovingpronunciation.ChoosestandardandclearEnglishpronunciationrecordings,suchasBBC,VOA,etc.,listenrepeatedly,payattentiontothedetailsofpronunciationandchangesintone.ListeningtrainingImitationisaneffectivewaytoimprovepronunciation.ChoosesomerepresentativeEnglishwordsorsentences,trytoimitatetheirpronunciation,andpayattentiontothepronunciationtechniquesofdiphthongs,suchaspitch,length,andsoundqualitycontrol.ImitationpracticeListeningtorecordsandimmittingexercisesCompareyourpronunciationwiththestandardpronunciation,identifyyourshortcomings,andstrengthenyourpracticeaccordingly.PhoneticcomparisonImprovetheaccuracyandfluencyofpronunciationthroughfunvoicegamessuchasvoicerelayandvoicepuzzle.VoicegamesFollowupexercisesSelfassessmentandcorrectionSelfevaluationRegularlyevaluateone'spronunciati