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1、不定冠词的用法不定冠词有a,an.（表示“一”）后面跟可数名词单数，如adog,anorangea+辅音开头的可数名词，如：ateacher,abird注意:auniversity（一所大学）ausefulbookaone-eyedhorse（一匹一只眼睛的马）an+元音开头的可数名词（这里的辅音和元音只单词的发音而不是字母）常见的元音字母开头的可数名词有：anorangeanappleanegganelephantanumbrella(雨伞)anactor(男演员)anactress(女演员)anhouranhones
2、tman（一个诚实的人）anEnglishteacheranAustralian（澳大利亚人）anItalian(意大利人)anAmericanboyanengineer(一位工程师)aneight-year-oldboyaninterestingmovie（一部有趣的电影）anEnglishspeakingcountry(一个讲英语的国家)anexcitingbook(一本有趣的书)animportantmatch（一个重要的比赛）另外，以下字母用an,如：Thereisan“u”intheword“student”字
3、母：aeiofhlmnrs“a”的用法用法1第一次提到某人或某物前，e.g:Oncetherewasacatkinginthewoods.用法2表示一，相当于onee.g：Iwanttobuyadictionary.用法3：“a+序数词”表示“又一，再一”。如，Hewouldliketotryathirdone.（再一次）用法4：某些固定词组中。havealook（看一看）havearest(休息一下)haveagoodtime(玩得开心)havea(high)fever发（高）烧haveacold(感冒)haveahe
4、adache/toothache/stomachache(头/牙/胃痛)once/twiceaweek（每周一次/两次）haveatry（试一试）haveameeting(开会)goforawalk(散步)afew/little（少许，一点点）alotof（很多）afterawhile（过了一会儿）inahurry（立刻）inaminute（一分钟后）takeabath（洗澡）练习：一、选择填空()1.Wecan’tsee_______sunat_________night.A.a;/B.a;theC.the;/D.th
5、e;the()2.IsCanada_______Englishspeakingcountry?A./B.aC.anD.the()3.There’re___fewmistakesinyourhomework.Don’tmake___samemistakesagain.A.a;aB.a;theC.the;theD./;the()4.Thereis____pictureon____wall.Ilike____pictureverymuch.A.a,the,theB.a,the,aC.the,a,aD.a,an,the()5.I
6、t's____excitingwaytoshopontheNet.A.aB.anC.theD./()6.Englishis_______language.Itis_______importanttool.A.a,aB.a,anC.the,anD.a,/()7.Tomis_______honestboy.Wealllikehim.A.aB.anC./D.the()8.Thereis_______“f”and_______“u”intheword“four”.A.an,aB.a,aC.an,anD.a,an()9._____
7、_youngshouldcareforandhelp_______old.A.The,aB.The,theC.A,theD.An,an()10._____moonmovesaround_____earth,andtheybotharesmallerthan____sun.A.The,the,theB.A,an,aC.The,an,theD.The,the,a()11.Shehas_______ orangeskirt．_______ skirtisnice． A．a；The B．an；The C．an；A D．the
8、；The()12.Beijingis_______ beautifulcity．It's_______ capitalofChina． A．a；a B．the；the C．／；the D．a；the()13.Shanghaiisin_______ eastofChina． A．／ B．an C
