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：
当主语是I， you及复数时，在句子开头加do; 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：
变大小写;
第一人称变为第二人称（I / we变为you, my / our变为 your）； 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.
完整word版,do-does的用法和练习题
