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1动词第三人称单数问题在一般现在时中，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。但有些同学们对于哪些主语是第三人称单数还不十分清楚，现归纳总结如下：一、人称代词he,she,it是第三人称单数。如：①HelikeswatchingTV.他喜欢看电视。②Shehaslunchattwelve.她十二点吃午餐。③Itlookslikeacat.它看起来像只猫。二、单个人名、地名或称呼作主语；是第三人称单数。如：①HanMeilookslikehermother.韩梅看起来像她的母亲。②BeijingisinChina.北京在中国。③UncleWangoftenmakescakes.王叔叔经常做蛋糕。三、单数可数名词或this/that/the+单数可数名词作主语时，是第三人称单数。如：①Ahorseisausefulanimal.马是有用的动物。②Thisbookisyours.这本书是你的。③Thatcarisred.那辆小汽车是红色的。④ThecatisLucy's.这只猫是露茜的。四、不定代词someone,somebody,nobody,everything,something等及指示代词this,that作主语时，是第三人称单数。如：①Everyoneishere.大家到齐了。②Thereissomethingwrongwiththewatch.这块手表有毛病。③Thisisapen.这是一支钢笔。④Thatisaneraser.那是一块橡皮擦。五、不可数名词作主语时为第三人称单数。如：①Themilkisintheglass.牛奶在玻璃杯里。②Thebreadisverysmall.那面包很小。六、当数字或字母作主语时，看作第三人称单数。如：①6isaluckynumber.6是个吉利数字。②Iisaletter.I是个字母。2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：①stop－stops[s];make－makes[s]②read－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]5、不规则变化：-have－has-Be－am（第一人称单数）is（第三人称单数）are（第二人称和所有复数）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：1、do[du:]－does[dz]2、say[sei]－says[sez]3、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]3======================================================I.写出第三人称单数：wash__washes_______match__maches_____guess__guesses____study__studies____finish__finishes_______go___goes_____snow___snows___carry____carryies_____II.用所给动词的适当形式填空：1.He__waches______TVeveryevening.(watch)2.Wealways_____goes___toschoolonfoot.(go)3.Tom,withhisclassmates,often___plays___footballafterschool.(play)4.Yourshoes___are____underthebed.(be)5.___Come___hereand__stand____byme.(come,stand)6.Hisuncleusually___goes______toworkbybus.(go)7.Ialways_gets_____upatsixinthemorning.(get)8.John_____looks___likehisfather.(look)III.完成句子1．该吃晚饭了。It’stimeto__havedinner______________.2．你想来点儿面包吗?Wouldyou____like____some_____bread___?3．安娜太小，还不能上学。Annis___too_____young___to_____gotoschool.4．约翰跑得和我一样快。John_runs___asfastasme.5．布莱克太太经常在英语上帮助我们。Mrs.blackoften___helps_____us____with____ourenglish.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’t4课堂练习一、把下列句子改成一般疑问句并做肯定、否定回答。1．Iusuallygetupatsixo’clock.Doyouusuallygetupatsixo’clock?Yes,Ido.No,Idon’t.2.Weusuallywritee-mailsonSaturdayeveningDoyouusuallywritee-mailsonSaturdayevening?Yes,wedo.No,wedon’t.3.Theyhavethesamehobby.Dotheyhavethesamehobby?Yes,theydo.No,theydon’t.4.SuhaiandSuyanglikelisteningtomusicafterschool.DoSuhaiandSuyanglikelisteningtomusicafterschool?Yes,theydo.No,theydon’t.5.HelenusuallywatchesTVintheevening.DoesHelenusuallywatchTVintheevening?Yes,shedoes.No,shedoesn’t.二、用词的适当形式填空。1.Whattime______hisfather______(do)thework?2.He_________(get)upatfiveo’clock.3._____you_____(brush)yourteetheverymorning?4.What____(do)heusually_____(do)afterschool?5.Tom________(study)English,Chinese,Maths,ScienceandArtatschool.6.Kittysometimes_____(go)totheparkwithhissister.7.Ateightatnight,she_____(watch)TVwithherparents.8.________Mike________(read)Englisheveryday?59.Howmanylessons________yourclassmates______(have)onMonday?10.Weoften_______(play)footballintheplayground.三．选择()1._____youhaveabook?A.DoB.AreC.IsD.Have()2.They_________onafarm.A.workingB.isworkC.workD.isworked()3.DoesPeterliketowatchTV?__________.A.Yes,helikeB.No,hedoesn’tC.Yes,he’dlikeD.No,helikes()4.Shedoesn’t___herhomeworkintheafternoon.A.doingB.todoC.doesD.do()5.How______Mr.Brown_____toAmerica?A.do,goB.is,goC.does,goD.does,goes()6.Where’smycamera?I_______it.A.amnotfindingB.amnotseeingC.can’tfindD.can’tlookat()7.How___hegotowork?He____toworkbybike.A.does;goB.do;goesC.do;goD.does;goes()8.___youusuallylateforschool?No,___.A.Do;IamB.Does;notC.Are;I’mnotD.Are;Iaren’t()9._____she_____homeatsixeveryday?A.Is,leaveB.Does,leaveC.Is,leavesD.Does,left()10.Mr.Yang______Englishthisterm.A.teachesourB.teachesusC.teachsusD.teachour一般现在时练习题/改句子一般现在时练习题1.Weoften___________(play)intheplaygound.62.He_________(get)upatsixo’clock.3.__________you_________(brush)yourteetheverymorning.4.What(do)heusually(do)afterschool?5.Danny(study)English,Chinese,Maths,ScienceandArtanschool.6.Mikesometimes__________(go)totheparkwithhissister.7.Ateightatnight,she__________(watch)TVwithhisparents.8.________Mike________(read)Englisheveryday?9.Howmanylessons_________yourclassmate________(have)onMonday?10.Whattime_________hismother_________(do)thehousework?改句子1.Doyouoftenplayfootballafterschool?(肯定回答)2.Ihavemanybooks.（改为否定句）3.GaoShan’ssisterlikesplayingtabletennis（改为否定句）4.ShelivesinasmalltownnearNewYork.（改为一般疑问句）5.IwatchTVeveryday.（改为一般疑问句）6.Davidhasgotagoal.（改为一般疑问句）7.Wehavefourlessons.（否定句）8.Nancydoesn’trunfast（肯定句）9.Mydogrunsfast.