一般疑问句和否定句的变法ppt课件

.,一般疑问句和否定句的变法,-闫彩虹,.,教学目标：1.学习一般疑问句和否定句的变化规则。重难点：1.在一般疑问句中人称的变化。2.some在一般疑问句和否定句的变化。,.,一、把be动词（amisare）和情态动词(can,may,must.)放到句首，其它照写。遇I/weyou,myyour.someany.句号变成问号（？）例如：陈述句:Theyareinthepark.Hecanplaytheguitar.一般疑问句:Aretheyinthepark?Canheplaytheguitar?,（一）一般疑问句,.,把下列句子变成一般疑问句2.Mikeisastudent.3.Sarahcancleantheclassroom.4.Iaminthezoo.5.Therearesomeflowersinthevase.6.Thisismysister.7.Wearesweepingthefloor.,.,二、借助助动词do/does,第三人称单数用does,其余人称用do，放到句首，其他照写特别记住：前面用does,后面的动词一定还原成原形。遇I/weyou,myyour,someany.句号变成问号（？）例如：陈述句:Iliketheducks.Helikesthedogs.一般疑问句：Doyouliketheducks?Doeshelikethedogs?,.,把下列句子改为一般疑问句。Weneedsomemasks.Theylikemakingthepuppet.SuHaiandSuYangliveinanewhouse.4.Iputabookonmyhead.6.WeplaybasketballonSundays.7.Tomlikeslisteningtomusic,.,（二）否定句一、在be动词（amisare）和情态动词(can,may,must.)后面加not，其它照写。some变成any.例如：陈述句:Theyareinthepark.Hecanplaytheguitar.否定句:Theyarenotinthepark.Hecannotplaytheguitar.或：Theyarentinthepark.Hecantplaytheguitar.amnot不能缩写isnot=isntarenot=arentcannot=cant,.,把下列句子变成否定句1.Iamlisteningtomusic.2.Mikeisastudent.3.Sarahcancleantheclassroom.4.Theyareinthezoo.5.Therearesomeflowersinthepark.6.Thisismysister.7.Wearesweepingthefloor.,.,二、借助动词dont/doesnt,第三人称单数用doesnt,其余人称用dont，放到人称后面，动词前面其他照写。特别记住：前面用doesnt,后面的动词一定还原成原形。Some变成any.例如：陈述句:Iliketheducks.Helikesthedogs.否定句：Idontliketheducks.Hedoesntlikethedogs?,.,把下列句子改为否定句。Weneedsomemasks.Theylikemakingthepuppet.SuHaiandSuYangliveinanewhouse.4