do-does的用法和练习题
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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.