冠词a和an的用法

冠词a和an的用法不定冠词有a和an两种形式，a用于辅音(不是辅音字母)开头的词前，an用于元音(不是元音字母)开头的词前。例如：aboy，aman，amonkey，auniversity，aEuropeancountry；anapple，anegg，anelephant，anoldwoman，anhour，anhonor，anisland，anelephant，anumbrella＿＿pen＿＿bag＿＿apple_____monkey_____elephant____girl＿＿bigapple＿＿orange＿banana＿＿orange____pen_____ruler＿＿oldbook＿＿hour＿＿house＿＿umbrella①Isit＿＿Chinesebookor＿＿Englishbook?②Thisis＿＿ring,anditis＿＿orangering.③Maryis＿＿Englishteacher.Tomis＿＿Chineseteacher.④Thisis＿＿book.It’s＿＿oldbook.⑤Thisis＿＿telephonenumber.⑥Thatis＿＿IDcard.⑦Ilostmykeys.It’s＿＿setofkeys.⑧It’s＿＿apple,not＿＿pear.⑨Thisis＿＿peach.That’s＿＿orange.⑩Youhave＿＿banana,butIhave＿＿egg.①Isthere＿＿umbrellaonthedesk?②Thereis＿＿islandinthesea.③Thereis＿＿pictureonthecard.④Ihave＿＿oldbook.⑤＿＿appleisakindoffruit.⑥Thereis＿＿armchairinthelivingroom.⑦I’dlike＿＿egg.⑧Look,thereis＿＿birdinthetree.⑨Isthere＿＿maponthewall?⑩Thereis＿＿benchinthepark.1.Iam___(a,an)student.2.Thereis____(a,an)elephantinthezoo.3.Youare____(a,an)goodboy.4.Ihave____(a,an)orange.5.Sheis＿＿（a，an）goodstudent。6.MissGrantis____(a,an)uglyteacher.6.Thisis_____(a,an)newbook.7.Pleasetake____(a,an)umbrella.8.Close____(a,an,the)door,please.9.Myfatheris___(a,an)doctor.10.Thereis____(a,an)orangeonthetable.11.Hegivesme____(a,an)sticker.