1、句式转换,小学阶段我们主要学习到了肯定句，否定句，一般疑问句和特殊疑问句。那么下面这些句子分别是什么性质的句子呢？为什么？,1.I want to take a photo.2.Do you want to go inside?3.Snakes cant hear.4.What do you do on Flag Day?5.Laura isnt from the US.6.Have you got a ruler?7.Why do you like winter?,肯定句,一般疑问句,否定句,特殊疑问句,否定句,一般疑问句,特殊疑问句,否定句：句中有_,否定词not,一般疑问句：句首有_ 句
2、末有_用Yes或No回答。,am,is,are,was,were,can,couldhave,hasdo,does,did,?,句式转换一：,1.She is watching TV.否定句_一般疑问句_2.They can play football.否定句_一般疑问句_3.Sam has got a new kite.否定句_一般疑问句_,She isnt watching TV.,Is she watching TV?,They cant play football.,Can they play football?,Sam hasnt got a new kite.,Has Sam go
3、t a new kite?,小结：若句中有标志词am,is,are,was,were,can,could have,has时，变否定句，_变一般疑问句，_,在这些词后+not,可连写。,把这些词提前，句末+？,4.They fly kites in the park.否定_一般疑问_,They dont fly kites in the park.,Do they fly kites in the park?,句式转换二：,若句中没有标志词am,is,are,was,were,can,could，have,has时，我们要根据句子时态借助动词do的各种形式：一般现在时：三单-非三单-一般过去时
4、：,does,do,did,小结：变否定句，借do,does,did,后面+not,放在主语后，动词前，原来动词变成原形。变一般疑问句，借do,does,did放在 句首，句中动词变成原形，句末+？,句式转换二：,5.Amy likes dolls.否定句_一般疑问句_6.Simon went to Beijing yesterday.否定句_一般疑问句_,Amy doesnt like dolls.,Does Amy like dolls?,Simon didnt go to Beijing yesterday.,Did Simon go to Beijing yesterday?,一般现在时（三单）,一般过去时,变否定句，借do,does,did,后面+not,放在主语后，动词前，原来动词变成原形。变一般疑问句，借do,does,did放在 句首，句中动词变成原形，句末+？,
