英语音标详解：双元音pure /ʊə/
<p><span word="The">The</span> <span word="diphthong">diphthong</span> /ʊə/ <span word="is">is</span> <span word="somewhat">somewhat</span> <span word="disappearing">disappearing</span> <span word="and">and</span> <span word="no">no</span> <span word="longer">longer</span> <span word="endurable">endurable</span>!</p><p>/ʊə/这个双元音正在走向“消亡”，不知还能再用多久?趁它还没变成化石，赶紧学起来哦!</p><p>【发音要领】</p><p>双元音/ʊə/是由短元音/ʊ/加/ə/组成的：嘴唇收圆，舌身向后拉，舌根抬起，振动声带，发出/ʊ/的声音，然后迅速将唇形和舌位收回至中元音/ə/。注意两个元音之间的过渡要平滑而迅速，音程占比是大约7:3或者后面的/ə/可以更短些。另外注意与长元音/<span word="u">u</span>ː/或者/<span word="u">u</span>ː<span word="l">l</span>/的区别。</p><p>据说这个音标正在逐渐消失，因为越来越多的年轻一代喜欢用/ɔː/来代替它。下面是朗文发音字典有关<span word="poor">poor</span>发音标注的截图。从中可以看到已经有超过70%的人把<span word="poor">poor</span>读作/<span word="p">p</span>ɔː/。人们认为，/<span word="p">p</span>ɔː/的发音听上去更年轻富有活力，虽然也有人坚信/<span word="p">p</span>ʊə/显得高端大气上档次。小编的求证结果是，在某些音标类的教参里，比如剑桥的<span word="English">English</span> <span word="Pronunciation">Pronunciation</span> <span word="in">in</span> <span word="Use">Use</span>和<span word="Tree">Tree</span> <span word="or">or</span> <span word="Three">Three</span>等语音教材中，已经找不到这个音标的身影了。</p>
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