肯定句与否定句和一般疑问句句型转换

第十三讲：肯定句与否定句和一般疑问句句型转换学习目标：1. 能理解和掌握肯定句，否定句和一般疑问句的定义；

2. 能理解和掌握上述三种句型的相互转换；

学习重点：1. 能熟练运用上述三种句型的相互转换；

学习难点：1.能熟练运用上述三种句型的相互转换

新课导入

Is everybody here?

I think you all have your hobbies.

Now, let’s talk about them.

Do you like singing?

Do you like making a model plane?

Do you like cooking?

Do you like playing computer games?

What do you like?

It is funny. It is interesting. It is great.

重难点讲解

一．肯定句转换为否定句

1. 含be动词（is/am/are）的否定（否定词is /am/are+ not）

(1) there be 句型中的否定

There is a cat in the tree. _______________________________________

There are some flowers in the garden.______________________________________

There are lots of bikes in the street. _______________________________________

(2)人称代词

She/ He/ It is a student. _______________________________________

We/ They are your friends. _______________________________________

(3) 指示代词

This/ That is an English book. _______________________________________

These/Those bananas are very big and yellow. _______________________________________

(4) 名词，人名，地名，等名词性质类词。

Beijing is a beautiful city. _______________________________________ Nancy is a nice girl. _______________________________________ The women in green are drivers. _______________________________________ 想一想：上述否定句句式变化有什么规律，试着用自己的语言归纳

__________________________________________________________________

2. 非be动词的否定

(1) 情态动词can，否定词（can not ）

She/ He/ It /We/They can sing an English song._________________________________

You can skate well. _______________________________________

(2) 非谓语动词do，否定词（do not）

I do my homework on Saturdays. _______________________________________

We do our homework on Saturdays. _______________________________________

(3) 非谓语动词does，否定词（does not）

She/ He has a pot ._____________________________________

想一想：上述否定句句式变化有什么规律，试着用自己的语言归纳

__________________________________________________________________

二、肯定句转换为一般疑问句

定义：由Yes或No回答的问句。

1.含be动词（is/am/are）一般疑问句式

(1) there be 句型

There is a garden in the city. _______________________________________

肯定回答：_________________ 否定回答：_________________

There is some juice in the bottle. _______________________________________

肯定回答：_________________ 否定回答：_________________

There are some cakes in the fridge._______________________________________

肯定回答：_________________ 否定回答：_________________

(2) 人称代词

She/ He/ It is a cook. _______________________________________

肯定回答：_________________ 否定回答：_________________