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英语语音训练-双元音什么是“双元音”？双元音音素由两个元音组成，发音时由一个元音向另一个元音滑动，口型有变化。前一个元音发音清晰响亮，且时间长；后一个元音发音模糊软弱，且时间短。特别要注意的三点是：(1)不要将前后两个音断开，应连贯成为一个整体：(2)不要因为后一个元音发音短小而将其忽略；(3)发音时滑动过程要完整，时间要充分。“双元音”有哪些？[ei][ai][ɔi][au][əu][iə][εə][uə]1.[ei]【发音规则】舌类顶下齿，牙床半开半合，双唇扁平，由发“哀”平稳过渡到发“一”之长音。以下这些字母及组合发这个音：[ei]aaiayeaeiey单词：a-ategamecakefacelazylabourhatredai-failwaitrainsailcomplainay-daywaymayea-breakgreatsteakei-neighboureightweightey-heythey句子：Todayispayday.Nopains,nogains.2.[ai]【发音规则】将口张开略圆，舌后升起，舌尖向后收缩，由发“阿”音平稳过渡到发“一”音。以下这些字母及组合发这个音：[ai]iyaieiieuyyeeyeigh单词：i-bikericesideliketimewideprivatey-bymyflycryskytryai-mainaisle通道ei-eithereiderheightie-lietiedieuy-buyguyye-dye染料eye-eyeigh-highfightnightrightlight短语/句子：Strikewhiletheironishot.趁热打铁Miketriedfivetimestogettheprize.3.[ɔi]【发音规则】双唇外突成圆形，发“奥”音逐渐过渡为双唇扁平分开，发“一”之短音。以下这些字母及组合发这个音：[ɔi]oioy单词：oi-oilboilcoinloinsoiljoinnoisevoicechoicedisappointedoy-boytoyjoyenjoyloyaldeployemploydestroy句子：Theboydestroyedthetoys.Theboymakesaloudnoise.4.[au]【发音规则】将口张开略圆，渐渐合拢，双唇成圆形，由发“阿”音平稳过渡到发“屋”音。以下这些字母及组合发这个音：[au]owou单词：ow-cowhownowdowntowncrowdallowbowerpowerflowerou-ouroutloudhousemouthfoundmousesoundgroundcounterfountain句子：Heshoutedlouderandlouder.Ihaveheardsomuchaboutyou.Brownspendshourafterhouramonghisflowers.Roundandroundhedancedinfrontofthecrowd..5.[əu]【发音规则】口半开半合，舌后微升，过渡成双唇成圆形，发“欧”之长音。以下这些字母及组合发这个音：[əu]ooaoeouowew单词：o-sonoboattoldnotenosepoemthosepotatotomatooa-loadboatroadtoastoe-toehoeou-soulthoughshoulderow-bowlshowthrowtomorrowew-sew句子：Don’tgohomealone,Joan.Littlestrokefellgreatoaks.水滴石穿Asyousow,youshallmow.种瓜得瓜，种豆得豆。6.[iə]【发音规则】双唇张开岈床由窄至半开舌抵下齿逐渐过渡至上卷，从“一”音过渡到“厄”音。以下这些字母及组合发这个音：[iə]eaiaeareerereiou单词：ea-idearealrealizetheateria-materialindustrialear-eardearnearyearcleareer-beerdeerpeercheerpioneerere-heremereiou-various句子：Thedeerisfulloffear.Weareneartheendoftheyear.Theycheeredtheherowhenheappeared.7.[εə]【发音规则】双唇张开后略圆，牙床张开相当宽，舌尖卷上渐至卷后。以下这些字母及组合发这个音：[εə]aarareairearereeir单词：a-areaparentvariousar-scarceare-dareraresparesharesquareair-airfairhairchairrepairear-bearwearpearere-therewherenowhereeir-heirtheir句子：Onamaregoesthemayor市长骑在母马上tothefairatthesquare.赶集来到了市场Preparedtobuyalittlebear打算买只小熊熊thatwillsitonhisfairchair.让它坐在椅子上8.[uə]【发音规则】双唇成圆形，牙床近于半合，舌尖不触下齿，发“屋”之长音，然后从“屋”音过渡到“厄”音。以下这些字母及组合发这个音：[uə]ouuaoorure单词：ou-touristua-usualFebruaryoor-poorure-puresure句子：I’msureheisfromaverypoorfamily.【语音练兵场】一.找出红色字母发音与音标不同的单词。1.[ei]A.faceB.waitC.heightD.great2.[ai]A.timeB.complainC.mainD.night3.[ɔi]A.mouthB.joinC.enjoyD.choice4.[au]A.downB.shoulderC.counterD.flower5.[əu]A.roadB.showC.potatoD.real6.[iə]A.wearB.realizeC.nearD.various7.[εə]A.repairB.shareC.peerD.where8.[uə]A.poorB.usualC.throwD.sure答案：1.C2.B3.A4.B5.D6.A7.C8.C