a和an的用法区别.ppt

-1-不定冠词的用法区别不定冠词的用法区别-2-3-根据句意和词首字母写单词根据句意和词首字母写单词 1.If the population in the world keeps increasing like this,there will be only standing r_ on the earth.2.Anyone who is in danger can call the p _ telephone on 110.3.We should p_ our earth because we have only one.4.“We can even get more than two when we a_ one to one.”Our head teacher Miss Liu often educates us with words like this.5.There is no one who has no f ;everyone can make different mistakes.oomolicerotectaultdd-4-根据句意和词首字母写单词根据句意和词首字母写单词 1.I like living in the old house,and watching the view of the steep hill_(在远在远处处).2.Its very difficult for the female headmaster to _(管理学校管理学校)like this.3.Our new school _(离离近近)the Zhongshan Park.4.There _(需要有需要有)more public toilets in the busy and crowd city center.in the distancerun a schoolis close toneed to be-5-不定冠词不定冠词a/an的区别的区别-6-特别提醒：特别提醒：an hour,an honest boy，a useful bookThere is an“f”in the word“five”.(在在“five”中有字母中有字母“f”。)归纳归纳:a用在以辅音音素开头的单词前，用在以辅音音素开头的单词前，an用在以用在以元音音素开头的单词前，判断一个单词是元音开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，而不是根据首头还是辅音开头，要根据其读音，而不是根据首字母。如：字母。如：我们可以这样来记忆：我们可以这样来记忆：不见元不见元音不加音不加an，不看字母看发音，不看字母看发音。-7-(1)在在26个字母中，前面用个字母中，前面用an的字母有：的字母有：a，e，f，h，i，l，m，n，o，r，s，x，其他用，其他用a。(u不是不是)(2)以以u开头的单词，要注意区别。如：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)以以e开头的单词，要注意区别。如：开头的单词，要注意区别。如：an egg,a European boy(4)以以h开头的单词，要注意区别。如：开头的单词，要注意区别。如：an hour,an honest boy要注意的字母：要注意的字母：-8-(5)注意这几个数字（注意这几个数字（1,11，与，与8相关的数字）相关的数字）a one-year-old boyan eveven-year-old boyan eighty-year-old man_1-year-old girl_ 11-year-old boy,_ 18-year-old girl要注意的数字：要注意的数字：aanan-9-1.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.aanaanaAnanan-10-归纳总结：归纳总结：要注意的字母：要注意的字母：要注意的数字：要注意的数字：(1)在在26个字母中，前面用个字母中，前面用an的字母有的字母有12个。个。(2)以字母以字母u开头的单词。开头的单词。(3)以字母以字母e开头的单词。开头的单词。(4)以字母以字母h开头的单词。开头的单词。(5)注意的数字。注意的数字。