小学英语第三人称单数专题讲解ppt课件

.,1,小学英语专项-一般现在时的第三人称单数,.,2,Ioften/usually/sometimes,一般现在时,经常性、习惯性的发生的动作,.,3,Whatdoyouoftendoontheweekend?,playfootball,watchTV,cookChinesefood,studyEnglish,dohomework,.,4,.,5,.,6,.,7,Ioftenplayfootball.,Heoftenplaysfootball.,IoftencookChinesefood.HeoftencooksChinesefood.,.,8,IoftenwatchTV.HeoftenwatchesTV.,.,9,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。,.,10,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-es1.一般情况下，直接在动词后+s,playlikeread,playslikesreads,2.以s,sh,ch,x,o结尾的动词，在词尾+es,watchwashgo,watcheswashesgoes,3.以辅音字母+y结尾的动词，变y为i，再+es,studyfly,studiesflies,4.不规则变化动词havehasdodoes,.,11,2.以s,sh,ch,x,o结尾的动词，在词尾+es,watchwashgo,watcheswashesgoes,.,12,IoftenstudyEnglish.HeoftenstudiesEnglish.,.,13,3.以辅音字母+y结尾的动词，变y为i，再+es,studyfly,studiesflies,.,14,Ioftendohomework.Heoftendoeshomework.,.,15,IoftenhaveanEnglishclass.HeoftenhasanEnglishclass.,.,16,4.不规则变化动词havedo,has,does,.,17,Doyouoftenplayfootball?,Yes,Ido.,No,Idont.,.,18,Yes,hedoes.,No,hedoesnt.,Doesheoftenplayfootball?,.,19,Ioftenplayfootball.Doyouoftenplayfootball?,Heoftenplaysfootball.Doesheoftenplayfootball.,.,20,在一般现在时中，当主语是第三人称单数时，疑问形式？,当主语为第一二人称时，怎样变成疑问句？,Ioftenplayfootball。Doyouoftenplayfootball?,句子前加上do,Heplaysfootball.Doesheplayfootball?,句子前加does后还有什么变化,.,21,SheoftenwatchesTV.,Sheoftendoeshomework.,DoessheoftenwatchTV?,Doessheoftendohomework.,.,22,Ioftenplayfootball.Idontoftenplayfooball.,Heoftenplaysfootball.Hedoesntplayfootball.,.,23,在一般现在时中，当主语是第三人称单数时，否定形式？,1.HeoftenwatchesTV.HedoesntwatchTV.2.HeoftencooksChinesefood.HedoesntoftencookkChinesefood.,.,24,对比变化,Ioftenplayfootball.Idontoftenplayfootball.Doyouoftenplayfoo