Englishphoneticscourseppt3diphthongs目錄BasicconceptsandclassificationofdiphthongsTypicaldiphthongpromotiontechniquesandexamplesThecombinationrulesandexamplesofconsonantsanddiphthongs目錄ApplicationofdiphthongsinwordsandcaseanalysisTherulesandexamplesofdiphthongintroductionchangesinsensesSummary,Review,andExtension01BasicconceptsandclassificationofdiphthongsDefinition:AdiphthongisaglidingvortexsoundformedbythecombinationoftwovortexsoundswithinasingleumbrellaCharacteristicsThesoundglidesfromonevowelsoundtoanotherwithinthesameumbrellaThetwovowelsoundsaredistinctandidentifiablewithinthediphthongDiphthongsaretypicallyrepresentedbytwovowellettersinspelling0102030405DefinitionandcharacteristicsMonophonicsounds:Soundsproducedbyasinglevowelsoundwithinasystolic,withoutanyglidingorchanginginvowelqualityDiphthongsvs.MonophthongsMonophthongshaveasinglevowelsound,whilediphthongshavetwodistinctvowelsoundsthatglidetogetherMonophthongsaretypicallyrepresentedbyasinglevowelletterinspelling,whilediphthongsarerepresentedbytwovowellettersDistinctionfrommonophonicsoundsClassificationbasedonvowelsoundsClosingdiphthongs:Startwitharelativelyopenvowelsoundandendwithacloservowelsound(e.g.,/a?/In"time"Openingdiphthongs:Startwitharelativelyclosevowelsoundandendwithanopenvowelsound(e.g.,/e)?/In"face"ClassificationcriteriaCrosslinguisticvariations:Diphthongscanvarysignificantlyacrosslanguages,withdifferentlanguageshavingdistinctDiphthongsystemsandsoundsClassificationbasedonlanguageanddialectEnglishdiphthongs:VarybasedondifferentEnglishaccentsanddialogues,withsomediphthongsbeingmoreproposedincertainregionsClassificationcriteria02Typicaldiphthongpromotiontechniquesandexamples010204/AI/PromotionSkillsStartwithawideopen[a]soundSlideuptoaclose[i]soundKeepyourmouthopenthroughthediphthongExamplewords:"time","life","like"03Startwithanopen[a]soundRoundyourlipsandslideuptoaclose[u]soundYourmouthshouldbeopenatthebeginningandclosedattheendExamplewords:"out","loud","now"01020304/Au/PronunciationSkillsStartwithawideopen[e]soundYourmouthshouldbeopenatthebeginningandclosedattheendSlideuptoaclose[i]soundExamplewords:"name","lake","make"/EI/PromotionSkillsStartwithanopen[o]soundandslideuptoaclose[i]sound/OI/asin"boy"or"toy"Startwithaclose[i]soundandslidedowntoaschwa[?]Sound/I?/Asin"here"or"before"Startwithanopen[e]soundandslidedowntoaschwa[?]Sound/E?/Asin"air"or"fair"Startwithaclose[u]soundandslidedowntoaschwa[?]Sound/U?/Asin"tour"or"poor"Othercommondiphthongassociations03ThecombinationrulesandexamplesofconsonantsanddiphthongsConsonantscommonlyprecedediphthongsInEnglishphonetics,diphthongsaretypicallyprecededbyconsultantsThiscombinationcreatesasmoothtransitionfromcoherenttovowelsoundsConsistentclustersSometimes,twoormoreconsonantsmayoccurtogetherbeforeadiphthongThesecongruentclustersrequirespecialattentiontopromotionDiphthongvariationsDiphthongscanoccurindifferentforms,suchasopen,closed,orcentralized,dependingontheadvertisingconsultantsandthepositionoftheDiphthonginawordThecombinationpatternofconsonantsanddiphthongs/Au/asin"out"/Ei/asin"cake"/U?/Asin"tour"/Oi/asin"boy"/Ai/asin"time"CommonexamplesofconsonantanddiphthongcombinationsCorrectvoicesoundsIt'simportanttopromotetheindividualvoicesoundswithinadiphthongcorrectlyEachvowelsoundshouldbedistinctandnotmergedintoasinglesoundSmoothtransitionWhenpromotingaconsonantfollowingbyadiphthong,thereshouldbeasmoothtransitionfromtheconsonanttothediphthongAvoidanybreakbreaksorpausesbetweenthesoundsStressandintroductionPayattentiontostressandintroductionwhenpromotingwordswithdiphthongsThestressandintegrationpatternscanaffectthepromotionofthediphthongandtheoverallmeaningofthewordPronunciationpreparations04ApplicationofdiphthongsinwordsandcaseanalysisDiphthongscanoccurinthebeginning,middle,orendofawordTheyareformedbythecombinationoftwovowelsoundswithinasingleumbrellaThefirstswellsoundisusuallylongandstrong,whilethesecondswellsoundisshortandweakThepositionofdiphthongsinaword

Casestudy:TheuseofdiphthongsindifferentwordsExample1"Out"-thediphthong"ou"occurrencesinthemiddleofthewordandisproposedas/a?/.Example2"Idea"-thediphthong"ea"occurrencesintheendofthewordandisproposedas/??Di??/.Example3"Height"-thediphthong"ei"occurrencesinthebeginningofthewordandisproposedas/ha?T/Suggestionforpracticingwordpromotion01Listentonativespeakersandinitiatetheirpromotion02Practicereadingwordswithdiphthongsalready,focusingonthecorrectpronunciationofeachvoicesoundwithinthediphthong03Recordyourreadingwordswithdiphthongsandcompareyourpronunciationtothatofnativespeakers04Useonlineresourcesorappstopracticeandimproveyourpromotion05Therulesandexamplesofdiphthongintroductionchangesinsenses010203RisingdiphthongintroductionTypicaloccurrencesinyes/noquestions,indicatinguncertaintyorpolarityForexample,"Areyoucomingwithme?"FallingdiphthongintroductionCommonlyusedinstatementsandcommands,conveyingcertificateorauthorityForinstance,"I'mgoingtothestore."RisingfallingdiphthongintroductionAfterfoundinwhquestions,expressingcurvatureoremphasisForexample,"Whereareyougoing?"ThevariationpatternofdiphthongintroductioninsensesSentence101"Hesawasawandthoughtitwasaknife."Sentence202"Shesellsseashellsbytheseashore."(Risingfallingdiphthongon"sells"andfallingdiphthongon"seashore"toemphasizetheactionandlocation.)Sentence303"Canyoucanacanasacancancanacan?"Casestudy:ChangesindiphthongintroductionindifferentsensesSuggestionforpracticingpresencepromotionListentonativespeakers:ExposeyourselftonativeEnglishspeakerstofamiliarizeyourselfwithnaturaldiphthongintroductionpatternsRecordyourself:PracticespeakingintentionswithdiphthongsandrecordyourpromotionCompareitwithnativespeakerrecordstoidentifyareasforimprovementFocusonstressandintroduction:PayattentiontowordstressandpresenceintroductionwhenpracticingdiphthongpromotionThiswillhelpyousoundmorenaturalandfluentPracticeincontext:Incorporatediphthongrichsensesintoyourdailyconversationsorpracticeroutestoreviseproperenrollmenthabits06Summary,Review,andExtensionDefinitionofdiphthongsAdiphthongisaglidingvowelsoundformedbythecombinationoftwovowelsoundswithinasingleumbrellaTypesofdiphthongsTherearethreetypesofdiphthongsinEnglish-closingdiphthongs,centraldiphthongs,andopeningdiphthongsEachtypehasitsownuniquesoundandpromotionrulesPromotiontipsTopromotediphthongscorrectly,itisimportanttoglidesmoothlyfromonevoicesoundtothenextwithinasinglesloganPracticemakesperfect,soitisrecommendedtopracticepromotingdiphthongsregularlySummaryandReviewofKeyKnowledgePoints要點(diǎn)三ProgressreportIhavemadesignificantprogressinunderstandingandpromotingdiphthongsIamabletoidentifyandcorrectlypromotemostdiphthongsinEnglishwords要點(diǎn)一要點(diǎn)二ChallengesfacedOnechallengeIfacedwasdifferentiatingbetweensimilarsoundingdiphthongsHowever,withpracticeandattentiontodetail,Ihavebeenable