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句型转换的方法柏林学校一、肯定句改否定句的方法——一步法1、在be动词后加not。如：isnot，arenot，amnot，wasnot，werenot；2、在can，should，will等后加not。如：cannot，shouldnot，willnot；3、上述都没有的，在动词前加助动词否定形式don’t/doesn’t/didn’t。4、some改成any。如有I、you将其该成you、I。二、肯定句改一般疑问句的方法——三步法1、把be动词放在句首，剩下的照抄，（some改成any，my改成your等）句点改成问号。2、把can，shall，will等放到句首，剩下的照抄，（some改成any，my改成your等）句点改成问号。3、上述都没有的，在句首请助动词Do/Does/Did帮忙，剩下的照抄，（some改成any，my改成your等）句点改成问号。三、肯定句改特殊疑问句的方法——四步法1、在一般疑问句的基础上，句首添加一个疑问词即可，可根据划线部分确定是什么疑问词。2、接着找be动词或can，shall，will等放在疑问词后面，若没有则请助动词do/does/did帮忙，写在疑问词后面，howmany除外，必须先写物品，再写be动词等。3、划线部分去掉后剩下的内容照抄，（some改成any，my改成your等）4、句点改成问号。如：what（什么）\how(怎样)\who（谁）\which（哪一个）\why（为什么）where（哪里）howmany（多少）\howmuch（多少钱）\whatcolour（什么颜色）\howold（多大）\……等等……一、把be动词（amisare）和情态动词(can,may,must...)放到句首，其它照写。遇I/we—you,my—your.some—any.句号变成问号（？）例如：陈述句:Theyareinthepark.Hecanplaytheguitar..一般疑问句:Aretheyinthepark?Canheplaytheguitar?把下列句子变成一般疑问句1.Iamlisteningtomusic.____________________________________2.Mikeisastudent.__________________________________________3.Sarahcancleantheclassroom.________________________________4.Theyareinthezoo.________________________________________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/we—you,my—your,some—any.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。1.Weneedsomemasks._________________________________2.Theylikemakingthepuppet._________________________________3.SuHaiandSuYangliveinanewhouse._________________________________4.Iputabookonmyhead.___________________________________________5.Theysing“Intheclassroom”together.________________________________6.WeplaybasketballonSundays.________________________________________7.Tomlikeslisteningtomusic.__________________________________8.MrWangisthirsty______________________________________________9.Theelephent’searsarelong______________________________________10.Welikebirds________________________________________________11.Hello.Youarehismother_________________________________________12.Icansinganddance.___________________________________________把下列句子变成否定句1.Iamlisteningtomusic._________________________________2.Mikeisastudent._______________________________________3.Sarahcancleantheclassroom._________________________________4.Theyareinthezoo.________________________________________5.Therearesomeflowersinthevase._____________________________6.Thisismysister._________________________________________7.Wearesweepingthefloor.__________________________________把下列句子改为否定句。1.Weneedsomemasks._________________________________2.Theylikemakingthepuppet._________________________________3.SuHaiandSuYangliveinanewhouse.______________________________4.Iputabookonmyhead.____________________________________5.Theysing“Intheclassroom”together.________________________________6.WeplaybasketballonSundays._______________________________________