a和an的用法区别（课件PPT）

不定冠词的用法区别靖西县第四中学黄斌根据句意和词首字母写单词1.Ifthepopulationintheworldkeepsincreasinglikethis,therewillbeonlystandingr________ontheearth.2.Anyonewhoisindangercancallthep________telephoneon110.3.Weshouldp_______ourearthbecausewehaveonlyone.4.“Wecanevengetmorethantwowhenwea________onetoone.”OurheadteacherMissLiuofteneducatesuswithwordslikethis.5.Thereisnoonewhohasnof;everyonecanmakedifferentmistakes.roompoliceprotectfaultadd根据句意和词首字母写单词1.Ilikelivingintheoldhouse,andwatchingtheviewofthesteephill______________(在远处).2.It’sverydifficultforthefemaleheadmasterto_____________(管理学校)likethis.3.Ournewschool__________(离……近)theZhongshanPark.4.There____________(需要有)morepublictoiletsinthebusyandcrowdcitycenter.inthedistancerunaschoolisclosetoneedtobe不定冠词a/an的区别特别提醒：anhour,anhonestboy，ausefulbookThereisan“f”intheword“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。(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：　　anumbrella，anunusualstory，anunhappyboy，auniversity，ausefulbook,aunit(3)以e开头的单词，要注意区别。如：anegg,aEuropeanboy(4)以h开头的单词，要注意区别。如：anhour,anhonestboy要注意的字母：(5)注意这几个数字（1,11，与8相关的数字）aone-year-oldboyaneveven-year-oldboyaneighty-year-oldman_____1-year-oldgirl_____11-year-oldboy,_____18-year-oldgirl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.　　aanaanaAnanan归纳：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。谢谢！放映结束感谢各位的批评指导！让我们共同进步