跪求国际音标单元音中的后元音

跪求国际音标单元音中的后元音

后元音：[ɑ:] [ɔ] [ɔ:] [u] [u:]后元音发音要领：①舌尖不触下齿,舌身后缩,舌后部向软颚抬起,除[ɑ:]外,双唇要收圆.②发[ɑ:][ɔ:][u:]时要注意长度,不要发得太短.[ɑ:] 舌尖不触下齿,口张大,舌身平放后缩.Art army star father garden tomato a large car,half a jar,after the bathI like to pass through the garden park.Far from eye,far from heart.[ɔ] ①舌尖不触下齿,口张大,舌身尽量降低并后缩.②双唇稍稍收圆.③可先发[ɑ:],然后将舌身再稍稍向后缩,双唇稍稍收圆（不要突出）即可发出[ɔ].On off hot want doctor foreign cotton socks,borrow a clock,a pocket watchThe coffee is top quality.When the shop was robbed,everybody was shocked.[ɔ:] ①舌后部比发[ɔ]时抬得略高.②双唇也收得更圆更小,并须用力向前突出.Always or law before caused daughter all in all,more and more,a short storyPaul’s four and can walk and talk.The storm draws near---we ought to go indoors.[u] ①舌尖不触下齿,舌后部向软颚抬起,舌身后缩.②双唇收圆,稍向前突出.Full look wood foot woman sugar push and pull,good books,by hook or by crookThe cook cooks good food.The woman stood for as long as she could.[u:] 双唇比发[u]时收得更圆更小,向前突出,舌后部比发[u]时抬得更高.To who lose group music fruit a blue balloon,an afternoon in June,huge roomsThe news is too good to be true.That rule is useful once in a blue moon.

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