动词第三人称单数的变化规则及练习

动词第三人称单数的变化规则及练习一、使用情况：在一般现在时中，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。(标志词usuallyoftenalwayssometimesneverevery等)二、变化规则1、直接在动词后+s例如：like-likesplay-plays2、以s,x,sh,ch,接尾的动词：+es例如：wash-washes3、以辅音+o接尾的动词：+es例如：go-goes4、以辅音字母+y接尾的动词：变y为i+es例如：fly-flies以元音字母+y接尾的动词后+s例如：play-plays5、除上述规律外，还应注意下面三点：1)动词have，遇到主语是第三人称单数时，要用has；动词be的第三人称单数形式是is。2）含有动词第三人称单数形式的句子变否定句时，要用doesn't+动词原形，如：Hegoestoschoolatsixinthemorning.(变否定句)→Hedoesn'tgotoschoolatsixinthemorning.3)对含有动词第三人称单数形式的句子提问时，要用助动词does如：Shegoeshomeatfiveeveryday.(对划线部分提问)→When/Whattimedoesshego注意：不规则变化：have-----has，be-------is，do-----doesI写出下列动词的第三人称单数(-s)和现在分词(-ing)godoplayjumpswimrunputsingdancecomegethaveflystudyreadwritelookdrinkeatwalklikeII选择1.Ben_____anewbook.A.haveB.hasC.havesD.were2.BenandMarysomebooks.A.haveB.hasC.areD.were3.Isomestorieseveryday.A.haveB.hasC.areD.were4.I__________icecream.A.likeB.likesC.likingD.likees5.Kitty__EnglisheverydayA.readB.readesC.readingD.reads6.Aman_____infrontofhiscar.A.walkB.walksC.walkingD.work7.Sam’sbicycle______abell.A.haveBhasC.havingD.ishaving8.IeverydayA.swimB.swimsC.swimingD.swimes9.Hehishomeworkeveryday.A.doesB.doC.areD.is10.I________myhomeworkeveryday.A.doB.isC.doesD.are11.They________theirhomeworkeveryday.A.doB.doesC.isD.are11.Lucy_______withherhands.A.touchB.touchingC.touchesD.touchs12.Superdog________theboysA.seeB.seesC.seeingD.ses13.SupergirlandSuperdog______them.A.savesB.saveC.savingD.issaving14.Jack_______theircow.A.sellsB.sellC.sellingD.areselling15.Jack______upthebeanstalk.A.getsB.getC.climbD.climbs16.Thegiant______boys.A.eatingB.don’teatC.eatsD.eat17.Thegoose_______goldeneggs.A.layB.laysC.layedD.layes17.Thewoman_______thebeanstalk.A.cutB.cuttingC.arecutD.cuts18.Hermother______thebeanstalk.A.takeB.istakeCtakesD.taking19Jackandhermother_____happerA.doesB.areC.isD.have20.He____thebeansintheground.A.buyB.putsC.putD.buys二．填空：1.She______(do)homeworkbyherself.2.Jack______(go)homebybike.3.Thegiant______(climb)upthebeanstalk.4.Hermum______(run)tothegoose.5.He______(donot)likeapple.6,Sam______(put)itunderhisarm.7.Theboy_______(chase)it.8.Kitty______(watch)TVeveryday.9.He______(feed)themat8:00inthemorning.10.When______(do)hegetup?11.GrandmaWang___(live)inPudong.12.Thegirls___(give)thekeytoGrandpa.13.Thatkey______(open)theoldbox.14.She______(say)“Ilikethesepuppets”.15.What_____(do)Alicefind?16.Whichtoy_____(do)shelike?17.Hedoesn’t______(know)hername.18.Johncan’t_______(find)hiswatch.19.Where_____(do)Grandmalive?20.Howdoeshe______(go)tothepostoffice?三、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)Doeshegotoschooleveryday?Yes,hedoes.(No,hedoesn't)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。一、把下列句子改成一般疑问句并做肯定、否定回答。1．Iusuallygetupatsixo’clock.Doyouusuallygetupatsix?Yes,Ido./No,Idon’t.2.Weusuallywritee-mailsonSaturdayevening？Yes,No,3.Theyhavethesamehobby.？Yes,No,4.SuhaiandSuyanglikelisteningtomusicafterschool.？Yes,No,5.HelenusuallywatchesTVintheevening.？Yes,No,二、否定句:在动词前+doesn't或don't.1.She__________(do)herhomeworkeveryday.2.He__________(live)inHuanggang.3.Thegirl__________(look)outofthewindowandseesmanybirdsinthesky.4.Jennyrunshomeand__________(sit)onthechair.三、一般疑问句:1._____thedesk_____(have)fourlegs?Yes,itdoes.2._____she____(do)herhomeworkeveryday?Yes,shedoes.3._____he_____(live)inHuanggang?No,hedoesn't.4.DoesDanny_____(see)theappletree?四、按照要求改写句子：1.Idomyhomeworkeveryday.(改为一般疑问句，作否定回答)________________________________________________________2.Shelikesmilk.(改为一般疑问句，作肯定回答)____________________________________________________________3.Amylikesplayingcomputergames.(改为一般疑问句，作否定回答)___________________________________________________4.Wegotoschooleverymorning.(改为否定句)_______________________________________________________5.Iliketakingphotosinthepark.(对划线部分提问)________________________________________________________6.JohncomesfromCanada.(对划线部分提问)___________________________________________________7.SimonandDaniellikegoingskating.(改为否定句)___________________________________________________五、改错(划出错误的地方，将正确的写在横线上)1.IsyourbrotherspeakEnglish?__________________2.Doeshelikegoingfishing?__________________3.Helikesplaygamesafterclass.__________________4.Mr.WuteachesusEnglish.__________________5.Shedoesn’tdoherhomeworkonSundays._________________二、用do或does的适当形式填空1._____yourideabiketoschool?Yes,I________.2.______yoursisterlikePE?No,she________.3.What_______thestudentshave?Theyhavesomepens.4.How_______Lindagotoschool?Shegoestoschoolonfoot.5.He_______notspeakEnglish.HespeaksChinese.6._______theywatchTVonSundays?Yes,they_______.7.Myfatherandmother______notreadnewspapersonSaturday.三、句型转换1.Igotoschoolbybus.(用He做主语变否定句)________________________________________2.Kimplaysbaseballverywell.(变一般疑问句)________________________________________3.Daviddoesn’tlikelearningFrench.（变肯定句）________________________________________4.Alandoesn’twatchTVonschoolnights.（变肯定句）________________________