a-an讲解及练习

1a,an用法区别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：anhour,anhonestboy，ausefulbookThereisan“f”intheword“five”.(在“five”中有字母“f”。)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(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-oldgirl1.Thereis____“u”intheword“use”.2.Thereis____“h”intheword“there”.3.Thereisn't____universityinourtown.4.Tonyis____honestboy.5.Londonis____Europeancity.6._____8-year-oldboyisplayinggames.27.Thereare60minutesin___hour.8.LiuXiangis___unusualplayer.总结：需注意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。习题：选择a或an或者不填(用/来表示)penbagapplebigapplebananaorangeorangesorangepenhourhouseumbrellauniversity用a/an填空：①IsitChinesebookorEnglishbook?②Thisisring,anditisorangering.③MaryisEnglishteacher.TomisChineseteacher.④Thisisbike.It’soldbike.⑤Thisistelephonenumber.⑥ThatisIDcard.⑦Ilostmykeys.It’ssetofkeys.⑧It’sapple,notpear.⑨Thisispeach.That’sorange.⑩Youhavebanana,butIhaveegg.①Isthereumbrellaonthedesk?②Thereisislandinthesea.③Thereispictureonthecard.④Ihaveoldbook.⑤appleisakindoffruit.⑥Thereisarmchairinthelivingroom.⑦I’dlikeegg.⑧Look,thereisbirdinthetree.⑨Istheremaponthewall?⑩Thereisbenchinthepark.