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小学英语语法：“第三人称单数”第三人称有“他、她、它以及一些单数名词”。当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。一、动词第三人称单数的变化规则及发音规律动词原形变第三人称单数的规则与发音规律同名词单数变复数大致相同，请认真观察。1、大多数动词在词尾加“S”如：stop－stops[s];make－makes[s]read－reads[z];play－plays[z]2、以辅音字母加“y”结尾的，要先将“y”变为“i”，然后在加“es”读[iz]如：fly－flies[z]；carry－carries[z]study－studies[z];worry－worries3、以“s,x,ch,sh”结尾的，在词尾加“es”，发音为[iz]如：teach－teaches[iz];watch－watches[iz]4、以“o”结尾的动词，加“es”，如：go－goes[z]do－does[z]注：下面几个动词变为单数时，原词的元音部分的发音发生了较大的变化，请注意记忆。如：do[du:]－does[dz]say[sei]－says[sez]以不发音字母“e”结尾的开音节词，如果尾音是[s]，[z]时，加“s”后字母“e”发音，与所加“s”一起读做[iz]。如：close－closes[iz]一、第三人称代词he,she,it做主语时。例如：SheisverygoodatEnglish.她英语学得好。Hestudiesinamiddleschool.他在一所中学学习。HelikeswatchingTV.他喜欢看电视。Shehaslunchattwelve.她十二点吃午餐。Hecanplayfootball.他会踢足球。Heusuallygetsupat6:oo.他通常6点起床。Itlookslikeacat.它看起来像只猫。二、单独使用的人名、地名或称呼语做主语时。例如:Jimoftenplaysfootballwithhisfriends.吉姆经常和他的朋友们踢足球。DoesUncleWanglikemakingthings?王叔叔喜欢做东西吗？HanMeilookslikehermother.韩梅看起来像她的母亲。BeijingisinChina.北京在中国。UncleWangoftenmakescakes.王叔叔经常做蛋糕。三、不可数名词做主语时。例如：Isthereanyjuiceinthebottle?瓶里有果汁吗?Themilkisintheglass.牛奶在玻璃杯里。Thebreadisverysmall.那面包很小。四、单数可数名词做主语时。例如：Theboxisinyourroom.箱子在你的房间里。Whatisthatgirldoingoverthere?那女孩在那边干什么？Ahorseisausefulanimal.马是有用的动物。Thatcarisred.那辆小汽车是红色的。ThecatisLucy's.这只猫是露茜的。五、单个数字、算式或单个字母做主语时。例如：Threeplusnineistwelve.三加九等于十二。IisanEnglishletter.I是个英语字母。6isaluckynumber.6是个吉利数字。六、指示代词this,that等做主语时。例如：Thisisherredpen.这是她的红钢笔。Thatisaneraser.那是一块橡皮擦。七、代词one做主语时。例如：OneofthemiswatchingTV.他们中的一个人正在看电视。八、不定代词something,anything,nothing,someone,somebody,nobody,everything等做主语时。例如：There'ssomethingwrongwiththecomputer.这台电脑坏了。Everyoneishere.大家到齐了。九、请看下面两组句子，注意区分他们的共同点和不同点。Igotoschooleveryday.Idon'tgotoschooleveryday.Hegoestoschooleveryday.Hedoesn'tgotoschooleveryday.Doyougotoschooleveryday?Yes,Ido.(No,Idon't)Yes,hedoes.(No,hedoesn't)Doeshegotoschooleveryday?注：1）第三人称单数用了does后面就不用动词的s形式了,而用动词原形.2）变为疑问句,要在句首加dodoes;变为否定句,要在动词前面加donot,doesnot,可以简写为don't,doesn’t.2012小学第三人称单数练习题一．Do还是Does我来选。1.[Do/Does]______hewatchTVatnight?Yeshedoes.2.[Do/Does]______yougotoschooleveryday?No,Idon’t.3.[Do/Does]______JackandPeterlikeapples?4.[Do/Does]______TinagoswimmingonSunday?5.[Do/Does]______theyplayfootball?Yes,they___[do/does].6.[Do/Does]______wehaveagoodteacher?Yes,we____[do/does].7.[Do/Does]_____theyjumprope?No,they___[donot/doesnot].8.[Do/Does]_____yourdogwalkinthezoo?9.[Do/Does]____Ihaveabignose?No,you_____[donot/doesnot].10.[Do/Does]____yourcatseatfish?Yes,they_____.[do/does].11.[Do/Does]_____theirmothersgoshopping?No,they____[donot/doesnot].12.I___[donot/doesnot]speakJapanese.[Do/Does]_____youspeakJapanese?二．请用have或has填空。1．I________anicepicture.2．He________agoodfriend.3．They_________somekites.4．We________someflowers.5．She__________aduck.6．Myfather__________anewbike.7．Hermother_________avase.8．Ourteacher_________anEnglishbook.9．Ourteachers_________abasketball.10．Theirparents__________somestorybooks.11．Nancy_______manyskirts.12．David________somejackets.13．Myfriends________afootball.14．Whatdoyou________?15．WhatdoesMike________?三．请用动词的适当形式填空。1.Lethim_____(play)basketball.2.Everyone_____(know)whathereallylike.3.Thosegirls____(be)mysister.4.Thatgirl_____(call)meeverySunday.5.How___(do)she_____(spell)theword?6.He________TVeveryevening.(watch)7.Wealways________toschoolonfoot.(go)8.Tom,withhisclassmates,often______footballafterschool.(play)9.Yourshoes_______underthebed.(be)10.______hereand______byme.(come,stand)11.Hisuncleusually_________toworkbybus.(go)12.Ialways______upatsixinthemorning.(get)13.John________likehisfather.(look)四．否定句:在动词前+doesn't或don't.1.She__________(do)herhomeworkeveryday.2.He__________(live)inShangHai.3.He__________(need)apairpfshoes.4.Danny__________(see)theappletree?5.She__________(come)fromAmerica.6.Thegirl__________(look)outofthewindowandseesmanybirdsinthesky.五．请用动词的适当形式填空。1._____thedesk_____(have)fourlegs?Yes,itdoes.2._____she____(do)herhomeworkeveryday?Yes,shedoes.3._____he_____(live)inHuanggang?No,hedoesn't.4._____he_____(need)apairofshoes?No,hedoesn't.5.DoesDanny_____(see)theappletree?6._____she_____(come)fromAmerica?Yes,she_____.7._____thegirl_____(look)outofthewindowandseesmanybirdsinthesky?No,she_____.8.Jennyrunshomeand_____(sit)onthechair?六．请选出正确的答案：1.She(like/likes)toplayfootball.2.He(like/likes)drinkingmilk.3.I(like/likes)towatchTV.4.We(like/likes)toplaybadminton.5.They(like/likes)tosingsongs.6.She(read/reads)bookseveryday.7.He(play/plays)computergameseveryday.8.It(listen/listens)totheradioeveryday.9.Linda(draw/draws)pictureseveryday.10.JaneandLinda(play/plays)footballeveryday.七、选择题：1.Itoschooleveryday.A.goB.goesC.going2.Heteetheverymorning.A.brushB.brushesC.brushing3.Thebirdssinging.A.likeB.likesC.liketo4.WhatdoesLilydoing?A.likeB.likesC.to5.youlikeeatingapples?A.DoB.DoesC.Doing6.heswimeveryafternoon?A.DoB.DoesC.Doing7.Tomlikesintheclassroom.A.singingB.singC.tosinging8.–DoesSallylikeswimming?--No,she.A.doB.doesC.doesn`t9.PeterandMarymilkeveryday.A.drinkB.drinkingC.drinks10.theyreadEnglisheveryday?A.DoesB.AreC.Do八、把下列句子变为否定句：1.Shedrawspictures