1、小学英语专项- 一般现在时的第三人称单数,I often/usually/sometimes,一般现在时,经常性、习惯性的发生的动作,What do you often do on the weekend?,play football,watch TV,cook Chinese food,study English,do homework,I often play football.,He often plays football.,I often cook Chinese food. He often cooks Chinese food.,I often watch TV. He ofte
2、n watches TV.,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。,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 1.一般情况下，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 have has do d
3、oes,2.以s, sh, ch, x, o 结尾的动词，在词尾+ es,watchwashgo,watcheswashesgoes,I often study English. He often studies English.,3.以辅音字母+ y 结尾的动词，变y 为i，再+ es,studyfly,studiesflies,I often do homework. He often does homework.,I often have an English class. He often has an English class.,4.不规则变化动词have do ,has,does
4、,Do you often play football?,Yes, I do.,No, I dont.,Yes, he does.,No, he doesnt.,Does he often play football?,I often play football. Do you often play football?,He often plays football. Does he often play football.,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？,I often play football。 Do you often pl
5、ay football?,句子前加上do,He plays football. Does he play football?,句子前加does后还有什么变化,She often watches TV.,She often does homework.,Does she often watch TV?,Does she often do homework.,I often play football.I dont often play fooball.,He often plays football.He doesnt play football.,在一般现在时中，当主语是第三人称单数时，否定形式？,1.He often watches TV. He doesnt watch TV. 2.He often cooks Chinese food. He doesnt often cookk Chinese food.,对比变化,I often play football. I dont often play football. Do you often play football?,He often plays football. He doesnt often play football. Does he often play football?,
