a和an的用法区别

不定冠词a/an的区别归纳:a用在以辅音音素开头的单词前，an用在以元音音素开头的单词前，判断一个单词是元音开头还是辅音开头，要根据其读音，而不是根据首字母。国际音标(1)以u开头的单词，要注意区别。如：umbrella，unusualstory，unhappyboy，university，usefulbook,unit(2)以e开头的单词，要注意区别。如：eggEuropeanboy(3)以h开头的单词，要注意区别。如：hour,honestboy要注意的字母：•(4)注意这几个数字（1,11，与8相关的数字）•one-year-oldboy•eveven-year-oldboy•eighty-year-oldman要注意的数字：aanan1.Thereis____“u”intheword“use”.2.Thereis____“h”intheword“there”.3.Thereisn't____universityinourtown.4.Tonyis____honestboy.5.Londonis____Europeancity.6._____8-year-oldboyisplayinggames.7.Thereare60minutesin___hour.8.LiuXiangis___unusualplayer.aanaanaAnananThereis“f”intheword“five”.(在“five”中有字母“f”。)