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动词第三人称单数的变化规则及练习一、变化规则1、直接在动词后+s例如：like-likes play-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+y接尾的动词：变y为i+es例如：fly-flies动词短语：+s: Plays,skips,sings,gives,starts,likes,buyssometoys,getsupcomesbackhomemakesnoodles,eatslunchdrinkscoffeebeginshisclass,practicesthepiano+es:watchesTVbrusheshisteeth+es:goestobedgoestoschoolTOC\o"1-5"\h\zdoesmyhomework doessomereadingy一i+es:fly—flies study一studies注意：不规则变化:have has,be is,do does写出下列动词的第三人称单数drinkgostaymakelookhavepasscarrycomewatchplantflystudybrushdoteachpractice二、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,Idonft)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“Do,Does;变为否定句，要在动词前面加“donot,doesnut':可以简写为“dontdoesn't。课堂练习一一、把下列句子改成一般疑问句并做肯定、否定回答。Iusuallygetupatsixo'clock.Doyouusuallygetupatsix?Yes,Ido./No,Idon't.Weusuallywritee-mailsonSaturdayeveningTOC\o"1-5"\h\zYes, No,Theyhavethesamehobby.Yes, No,SuHaiandSuyanglikelisteningtomusicafterschool.Yes, No,HelenusuallywatchesTVintheevening.Yes, No,二、否定句:在动词前+doesn't或don't.1.She(do)herhomeworkeveryday.He(live)inHuanggang.Thegirl(look)outofthewindowandseesmanybirdsinthesky.Jennyrunshomeand(sit)onthechair.三、一般疑问句：1.thedesk(have)fourlegs?Yes,itdoes.2.she(do)herhomeworkeveryday?Yes,shedoes..he(live)inHuanggang?No,hedoesn't..DoesDanny(see)theappletree?四、按照要求改写句子：Idomyhomeworkeveryday.(改为一般疑问句，作否定回答)Shelikesmilk.（改为一般疑问句，作肯定回答）Amylikesplayingcomputergames.（改为一般疑问句，作否定回答）Wegotoschooleverymorning.（改为否定句）Iliketakingphotosinthepark.（对划线部分提问）JohncomesfromCanada.（对划线部分提问）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）IsyourbrotherspeakEnglish? Doeshelikesgoingfishing? Helikesplaygamesafterclass. Mr.WuteachesourEnglish. Shedoesn'tdoesherhomeworkonSundays. 课堂练习二一、写出所给词的第三人称单数形式sitswimreadmakerunwritehavegodowatchcrystudyplaysaywash二、用do或does的适当形式填空yourideabiketoschool?Yes,IyoursisterlikePE?No,sheWhatthestudentshave?Theyhavesomepens.HowLindagotoschool?Shegoestoschoolonfoot.HenotspeakEnglish.HespeaksChinese.theywatchTVonSundays?Yes,they.MyfatherandmothernotreadnewspapersonSaturday.三、句型转换Igotoschoolbybus.（用He做主语变否定句）Kimplaysbaseballverywell.（变一般疑问句）Daviddoesn'tlikelearningFrench.（变肯定句）Alandoesn'twatchTVonschoolnights.（变肯定句）Wehaveenoughtimetodoit.（变否定句）Snoopyhasacar.（对划线部分提问）Doyouhaveapencil?（把主语改成she）四、动词的适当形式填空Jim'sfather (work)inabank.He (go)toworkbybuseverymorning,sometimeshe (ride)hisbike.Buthe (be)neverlateforwork.He (work)veryhard.Jim (like)hisfatherverymuch.Theyoften (play)badminton(羽毛球)infrontoftheirhouse,sometimesthey(play)tabletennisinJim'sschool.Jim (like)totalkwithhisfather.Hisfather (like)tohearJimtalkingabouthisfriendsandhis