CompleteversionofEnglishdiphthongpronunciatioTHEFIRSTLESSONOFTHESCHOOLYEAR•ClassificationandPronunciationofDiphthongs•Thepromotionofdiphthongsinwords•Commonproblemsandcorrectionmethodsfordiphthongpromotiondiphthongpromotion01FundamentalsofdiphthongpromotionThepronunciationcharacteristicsofdiphthongsSubsidiaryinitialposition1DiphthongsarepromotedinthecollapsibleinitialpositionTransitionqualityDiphthongsarecharacterizedbyasmoothtransitionfromonevoicesoundtoanother23DurationDiphthongsarelongerthansimplevotesPronunciationtechniquesfordiphthongsLiftedjawCentralizationThetongueshouldbepositionedinthecentralpartofthesouthduringthepromotionofdiphthongsTopromotediphthongscorrectly,thejawshouldbeliftedslightlytowardsthecheekbonesBlendingDiphthongsshouldbeimprovedasablendoftwovowelsounds,withasmoothtransitionbetweenthemPracticepromotionofdiphthongsPracticewithIPAsymbols01IPAsymbolscanbeusedtorepresentpathologiesandprovideamoreaccuraterepresentationoftheirpromotionIntroduction02Practicingimprovingnativespeakers'promotionofdiphthongscanhelpimproveone'sownpromotionRecordingandfeedback03Recordingoneselfpromotingdiphthongsandreceivingfeedbackfromateacherorlanguageexpertcanhelpidentifyandcorrectpronunciationerrors01ClassificationandPronunciationofDiphthongsThefirsttypeofdiphthong:ai,au,ei,euAI(asin"aid")Au(asin"thought")Thevowelispromotedasalongvowel,startingwiththelipsroundedandthenflattenedThesoundissimilartothevowelin"say"Thevowelispronouncedwiththelipsrounded,similartothevowelin"saw"Ei(asin"eight")EU(asin"feud")Thevowelispronouncedwiththelipsflattered,similartothevowelin"ate"Thevowelispronouncedwiththelipsrounded,similartothevowelin"few"Secondtypeofdiphthong: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"01ThepromotionofdiphthongsinwordsPromotionofdiphthongsinstressedvegetablesGeneralruleInstressedvegetables,EnglishdiphthongsaretypicallypromotedasalongvowelsoundExceptionsThereareexceptionstothisrule,suchasthediphthongsinwordslike"oy"in"boy"and"ei"in"height"PronunciationofdiphthongsinunstressedaggregatesGeneralruleInunstressedvegetables,EnglishdiphthongsaretypicallypromotedasashortvowelsoundExceptionsSomediphthongsmaybepropagatedasalongvowelsoundinunstressedaggregates,soasthediphthongin"neighbor"ThepromotionofdiphthongsinlinkingGeneralruleWhenaconsonantisbetweentwovowels,thesecondvoweliscommonlypromotedasadiphthongExceptionsThereareexceptionstothisrule,suchasthediphthongin"ai"in"mail"01CommonproblemsandcorrectionmethodsfordiphthongpromotionInaccurateassociationofdiphthongsProblem01DiphthongsareoftenpropagatedastwoseparatevotesCorrection0203Practicesayingdiphthongsasasinglesound,maintainingasmoothtransitionfromonevotetothenextExampleThediphthongintheword"coin"shouldbepronouncedasasinglesound,notas"coeein"DifficultlyinpronouncingdiphthongsProblemSomepeoplefinditdifficulttoproducethespecificsoundofdiphthongsCorrectionListentonativespeakersandinitiatetheirpromotionPracticesayingdiphthongsindifferentcontextsandwithdifferentaccountsExampleThediphthongintheword"boy"shouldbepronouncedas"boee",notas"bo-i"TheproblemofunnaturalassociationofdiphthongsProblemSomepeople'spromotionofdiphthongssoundsunnaturalorforcedCorrectionPayattentiontothenaturalnessofthesound,ensuringthatthetransitionbetweenvotesissmoothandeffortlessExampleThediphthongintheword"oil"shouldbepromotedas"oyil",maintainingasmoothtransitionfromthe"oy"tothe"il"01PracticeandimprovementofdiphthongpromotionListeningtorecordsandimmittingexercisesListeningtrainingListeningtorecordingsisanimportantstepinimprovingpronunciation.ChoosestandardandclearEnglishpronunciationrecordings,suchasBBC,VOA,etc.,listenrepeatedly,payattentiontothedetailsofpronunciationandchangesintone.ImitationpracticeImitationisaneffectivewaytoimprovepronunciation.ChoosesomerepresentativeEnglishwordsorsentences,trytoimitatetheirpronunciation,andpayattentiontothepronunciationtechniquesofdiphthongs,suchaspitch,length,andsoundqualitycontrol.FollowupexercisesPhoneticcomparisonCompareyourpronunciationwiththestandardpronunciation,identifyyourshortcomings,andstrengthenyourpracticeaccordingly.VoicegamesImprovetheaccuracyandfluencyofpronunciationthroughfunvoicegamessuchasvoicerelayandvoicepuzzle.SelfassessmentandcorrectionSelfevaluationRegularlyevaluateone'spronunciation,identifyanypronunciationissues,anddevelopcorrespondingimprovementplans.CorrectionoferrorsForerrorsinone'spronunciation,correcttheminatimelymannerandstrengthenpracticetoavoidhabitualincorrectpronunciation.THANKSTHEFIRSTLESSONOFTHESCHOOLYEAR