精选优质文档-倾情为你奉上l 元音发元音时声带震动, 元音都是浊音元音影响气息 (Strong forms and weak forms-have/hv/ /hv(f)/);音影响词汇重读above (word stress);元音影响语调What? (Intonation);元音影响节奏 (音长)(Rhythm, length of vowels)主元音(Cardinal vowels)Cardinal vowels indicate the range of human vocal organs can make. They act as a kind of scale or measure, with which to locate all the vowel phonemes of a language.Functions1. Cardinal Vowels provides learners with a set of standards. With the reference to them, any vowel