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Lesson17Classificationofvowels&consonants,Classificationofvowels,Monophthong-121.Rangeoftonguesactivities:(1)Frontvowel:i:ie(2)Backvowel:a:u:u(3)Centralvowel：:,2.Theshapeoflips：（1）Roundedvowel:u:u（2）扁唇音：i:（3）中常：iea:3.Thelength：（1）Longvowel:i:a:u:（2）Shortvowel:uie,Diphthong-9（1）CloseDiphthong:eiaiuaui（2）RisingDiphthong:iu,Classificationofconsonants,1.Manner（1）Plosiveconsonant：pbtdkg（2）Nasalconsonant：mn（3）Fricativeconsonant：fvszrh（4）Affricateconsonant：td（tsdztrdr）（5）Semi-vowel：wj（6）Lateralconsonant：l,2.Locationsound（1）Bilabial：pbmw（2）Labiodental：fv（3）Lingua-dental：（4）Alveolar：tdsznl（5）Posterioralveolar：r（6）Palato-alveolar：td（7）Palatalconsonant：j（8）Velarconsonant：kg（9）Glottalconsonant：h,3.Voice（1）Breathedsound：ptkfhsttrts（2）Voicedsound:bdgmnvzrddzdwjl,i:,e,u:,:,I,:,:,high,mid-high,mid-low,low,front,mid,back,VowelCharts:EnglishPureVowels,Practice,1.Abigblackbearsatonabigblackbug.2.Abigblackbugbitabigblackbearandmadethebigblackbearbleedblood.3.Abigblackbugbitabigblackdogonhisbigblacknose!4.Blackbackground,brownbackground.5.Blakesblackbikesbackbrakebracketblockbroke.,7.HowmanycookiescouldagoodcookcookIfagoodcookcouldcookcookies?Agoodcookcouldcookasmuchcookiesasagoodcookwhocouldcookcookies.8.Howmaysawscouldasee-sawsawifasee-sawcouldsawsaws?9.IwishIwerewhatIwaswhenIwishedIwerewhatIam.10.Iwishtowishthewishyouwishtowish,butifyouwishthewishthewitchwishes,Iwontwishthewishyouwishtowish.11.Iwishyouwereafishinmydish12.Iftwowitcheswouldwatchtwowatches,whichwitchwouldwatchwhichwatch?,
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