a和an的用法区别1ppt课件.ppt

不定冠词的用法区别,1,复习旧知，巩固所学,2,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.,oom,olice,rotect,ault,dd,3,根据句意和词首字母写单词,1.Ilikelivingintheoldhouse,andwatchingtheviewofthesteephill_(在远处).2.Itsverydifficultforthefemaleheadmasterto_(管理学校)likethis.3.Ournewschool_(离近)theZhongshanPark.4.There_(需要有)morepublictoiletsinthebusyandcrowdcitycenter.,inthedistance,runaschool,iscloseto,needtobe,4,不定冠词a/an的区别,5,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。,6,(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：,7,(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：,a,an,an,8,1.Thereis_“u”intheword“use”.2.Thereis_“h”intheword“there”.3.Thereisnt_universityinourtown.4.Tonyis_honestboy.5.Londonis_Europeancity.6._8-year-oldboyisplayinggames.7.Thereare60minutesin_hour.8.LiuXiangis_unusualplayer.,a,an,a,an,a,An,an,an,9,归纳总结：,要注意的字母：,要注意的数字