a和an的用法区别1PPT.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,不定冠词a/an的区别,1,特别提醒：,an hour,an honest boy，a useful book,There is an“f”in the word“five”.,(在“five”中有字母“f”。),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。如：,我们可以这样来记忆：,不见元音不加an，不看字母看发音,。,2,(1)在26个字母中，前面用an的字母有：,a，e，f，h，i，l，m，n，o，r，s，x，其他用a。(u不是),(2)以u开头的单词，要注意区别。如：,an umbrella，an unusual story，an unhappy boy，a university，a useful book,a unit,(3)以e开头的单词，要注意区别。如：,an egg,a European boy,(4)以h开头的单词，要注意区别。如：,an hour,an honest boy,要注意的字母：,3,(5)注意这几个数字（1,11，与8相关的数字）,a one-year-old boy,an eveven-year-old boy,an eighty-year-old man,_1-year-old girl,_ 11-year-old boy,_ 18-year-old girl,要注意的数字：,a,an,an,4,1.There is _“u”in the word“use”.,2.There is _“h”in the word“there”.,3.There isnt _ university in our town.,4.Tony is _ honest boy.,5.London is _ European city.,6._ 8-year-old boy is playing games.,7.There are 60 minutes in _ hour.,8.Liu Xiang is _ unusual player.,a,an,a,an,a,An,an,an,5,归纳总结：,要注意的字母：,要注意的数字：,(1)在26个字母中，前面用an的字母有12个。,(2)以字母u开头的单词。,(3)以字母e开头的单词。,(4)以字母h开头的单词。,(5)注意的数字。,6,