do-does的用法和练习题.doc

助动词do, does的用法
●do用于当主语是第一人称I, 第二人称you 及复数时（复数包括we, they, these, those及两个以上的人或者事物。 
●does 用于当主语是第三人称单数时（第三人称包括she, he, it, this, that,单独的事物或者人名等）。  
含有实义动词的句型结构变换
一、肯定陈述句 
1． 当主语是I， you及复数时，谓语动词用原型。
 Eg. I know it. （Eg.表示例如的意思）
    They have two volleyballs. 
Tina and Tom like ice cream. 
2.  当主语是第三人称单数时（第三人称包括she, he, it, this, that,单独的事物或者人名等）。谓语动词要变为第三人称单数形式。P98  特别要注意have—has
Eg. She has a set of keys.    
He knows my name. 
    Tom needs a computer game.  
二、肯定陈述句变换成否定陈述句 
1． 当主语是I， you及复数时，在谓语动词前加do not = don’t 
Eg. I don’t know it. 
   They don’t have two volleyballs. 
Tina and Tom don’t like ice cream. 
2. 当主语是第三人称单数时,在谓语动词前加does not = doesn’t, 谓语动词打回原型 
Eg. She doesn’t have a set of keys.   
 He doesn’t know my name. 
   Tom doesn’t need a computer game. 
三、 肯定陈述句变换成一般疑问句采用“一加二变三问号”。
 一加： 
l 当主语是I， you及复数时，在句子开头加do; 
l 当主语是第三人称单数时（第三人称包括she, he, it, this, that,单独的事物或者人名等）, 在句子开头加does; 
二变： 
l 变大小写; 
l 第一人称变为第二人称（I / we变为you, my / our变为 your）； l 当主语是第三人称单数时,谓语动词要打回原型。 
三问号：
在句末加问号。 
肯定回答；Yes, 主语 + do/ does. 
否定回答：No, 主语+don’t / doesn’t . (主语要用相应的人称代词主格)
 Eg. Do you know it?     Yes, I do.   /  No, I don’t . 
Do they have two volleyballs?     Yes, they do.   /  No, they don’t . 
Do Tina and Tom like ice cream?  Yes, they do. / No, they don’t. 
Does she have a set of keys?  Yes, she does.  / No, she doesn’t.    
Does he know your name?      Yes, he does.   /No, he doesn’t. 
 Does Tom need a computer game?   Yes, he does.   /No, he doesn’t.  
四、肯定陈述句变换成特殊疑问句（对画线部分提问）    特殊疑问词 + 一般疑问句？（去掉画线部分） 
Eg. They have two volleyballs. ------------What do they have?    
He knows my name. -------------What does he know? 

练习
一．找朋友。
do does
He  I  she   we    it   you   they 
Jack and Tom    a dog
二．选词填空。
1. [Do/Does]______ he watch TV at night?  Yes, he .
2. [Do/Does]______ you go to school everyday?  No, I .
3. [Do/Does]______ Jack and Peter like apples?
4. [Do/Does]______ Tina go swimming on Sunday?
5. [Do/Does]______they play football? Yes, they _ __[do/does]
6. [Do/Does]______ we have a good teacher? Yes, we ___ _[do/does]
7. [Do/Does]_____ they jump rope ? No, they _ __[do not/does not].
8. [Do/Does]_____your dog walk in the zoo?
9. [Do/Does]____ I have a big nose?  No, you _____[do not/does not]
10. [Do/Does]____ your cats eat fish? Yes, they _____.[do/does].
11. [Do/Does]_____ their mothers go shopping? No, they ____[do not/does not].
12. I ___[do not/ does not] speak Japanese. [Do/Does] _____you speak Japanese?
三、改错。
1、The dog have a long tail. ( ) ________
　　　A B C
　2、His father and mother has a son. ( ) ________
　　　A B C
3、The U.K.’s flag have stars and stripes. ( ) ________
　 A B C
4、Tom have a big truck. ( ) ________
　　　　　A B C
5、Beijing have the Palace Museum. ( ) ________
A B C
四、 把下列句子改为否定句。
1. I have many friends.
2. Her father has two brothers.
3. He has a computer.
4. My cousin has a good friend.
5. He has three pens.
6. Tom has a kite.
7. My teachers have nice pictures.
8. His father has a green car.
9. Jim has a happy family.
10. Jenny has a cup of tea.
五、 把下列句子改为一般疑问句，并作出否定回答。
1. They have sandwiches.
2. The school has many trees.
3. She has lovely dogs.
4. Jenny has a brother.
5. They have two bananas.
6. The girl has a big hat.
7. The woman has two babies.
8. Kate’s mother has a pair of glasses.
9. We have a nice model plane.
10. Tom and Jim have red shirts.

用have, has填空。
1. I _ some red ink.
2. His father an old car.
3. You _ two big eyes.
4. Their parents many friends.
5. My sister __ a nice skirt.
6. The nurses __ white clothes.
7. He and she __ some bananas.
8. Look, the boy __ some apples.
9. Our school twelve classroom.
10. The students many books.
11. Her sister a new bike.
12. Their teacher some nice pictures.
13. Your mother______a new bike.
14. Li Ming’s mother_________big eyes.
15. Jenny and Danny__________two black pens.
16. The dog_______some meat in its mouth.
17. The students of Class One________a football.
18. Mary_________a doll.
19. They _________some soup for supper.
20. Our school________a big library.