现在进行时课件PPT.ppt

Unit5;Unit5;I am reading a book.;What is he doing?;Unit5;Unit5;What is he doing?;Unit5;Unit5;Unit5;Unit5;Unit5;Unit5;Unit5;The present continuous tense 现在进行时;2.否定句：直接在am/is/are后加not. 如：I am writing. I am not writing.;3.一般疑问句及回答:问句,直接把am/is/are提句首,若原句有第一人称I/we，把第一人称变成第二人称you。

肯定回答:Yes,主语 +be （be)是要变化的，即am/is/are

否定回答: No,主语+be+not

You are drawing a pig.(变一般疑问句，再变肯定回答，否定回答）

Are you drawing a pig?

Yes,I am./No, I’m not.

特殊疑问句：对be Ving 提问要用what.

格式为：what am/is/are +主语+doing.?

;Unit5;Unit5;Unit5;Unit5;4.变特殊疑问句：

什么是特殊疑问句呢？

答：就是对划线部分提问

例: Tom is playing football .(对划线部分提问）

对am/is are+ Ving+名词， 提问要用what.

格式为：what am/is/are +主语+doing?

What is Tom doing?

;结构: be+doing ( be要根据主语作人称和数的变化)

句型转换

1.肯定句转换成否定句,要在 be 后加 not 构成

eg: We are reading English now. ?We are not reading English now.