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助动词do/does的用法
助动词do与does口诀
（一）(do ) 变句型，先观察， 陈述句中用动原, 一般疑问do提前， 否定don’t实动前。
（二）(does) 若是主语为三单， 陈述句中动三单， 一般疑问也简单， does放在句子前， 否定doesn’t实动前， 主动出现动还原。
总结：
含有实义动词的句子，进行句子转换时应借助于助动词do/does，主语是三单(he,she,it)时用does，其他用do。
否定句在动原前加don’t /doesn’t
一般疑问句句首加do/does, 句中用动原
特殊疑问句由特殊疑问词+一般疑问句。
句子类型及结构
肯定句：主语+动词+其它。主语是三单，动词用三单
I like this blue sweater. Tom likes this blue sweater.
我喜欢这件蓝色的毛衣。 Tom喜欢这件蓝色的毛衣。
I like this blue sweater. Tom likes English.
否定句：主+ don’t/doesn’t+动原+其它
I don’t like this blue sweater. 我不喜欢这件蓝色的毛衣。
Tom doesn’t like English. Tom不喜欢英语。
I like this blue sweater.
Tom likes English.
一般疑问句：do/does提前，其它照抄不变（Do /Does+主+动原+其它？），一人称变二人称。回答：Yes,主+do/does. No,主+ don’t/doesn’t.
Do you like this blue sweater Yes, I do. / No, I don’t.
你喜欢这件蓝色的毛衣吗？是的，我喜欢; 不，我不喜欢。
Does Tom like English？Yes,he does. /No.he doesn’t.
Tom喜欢英语吗？是的，他喜欢；不，他不喜欢。
一、选择适当的词填空（用do 和 does/don’t doesn’t填空）
you like soccer Yes, I .
they like ping--pong Yes, they .
Tony and Ben like baseball No, they .
your friends like tennis Yes, they .
your brother like basketball No, he .
you like basketball Yes, I .
they like salad No, they .
Jenny have white sweaters Yes, she .
Peter have black trousers Yes, he .
your father like apples Yes, he .
your friends like bananas No, they .
your father and mother have milk for breakfast Yes, they .
I ________( don’t /doesn’t）play sports.
You _________( don’t /doesn’t）like ice-cream.
My parents________( don’t /doesn’t） want to watch TV.
His friend _______( don’t /doesn’t）eat breakfast.
Mary _______( don’t /doesn’t）like salad.
— he have a tennis ball —Yes, he .
— Anna have a ping-pong bat —Yes, she .
— Mike and Eric have some balls —No, they
二.按要求完成句子。
1. Jenny has a ping-pong bat. (改为一般疑问句) _____ Jenny _____a ping-pong bat
2. I like to eat vegetables every day. (改为一般疑问句) ______ you like to eat …
3. They like bananas. (改为否定句) They ______ ______ bananas.
4. Tom likes apples.(改为一般疑问句)______ Tom ______ apples
5. Does John like chicken (否定回答)— _______ , ________ _______.
6.I like salad. (改为一般疑问句) _______ ______ ________ salad
7.Do you like bananas (作肯定回答) _______ , ________ _________.
8.Do they like milk (作否定回答) ________, ______ _________.
9.Does he like milk (作否定回答) _______, _______ ________
10.I like tomatoes. (把I改成 he重写句子)He _________ ___________.
11.Linda and Alice like carrots. (改为一般疑问句并作肯定回答)
_______________________________ _________________ .
12.你喜欢西红柿吗 _________ you like ___________
13.你弟弟喜欢鸡蛋吗？不，他不喜欢。
_______ your brother _______ _______ No, he _________ .
14.I have three English books. (改为否定句) I three English books.
15. I have a new volleyball. (改为一般疑问句) a new volleyball
16. Does Li Lei have a tennis ball ( 作否定回答) ， .
17. I have a computer. (改为否定句)I a computer.
18. She has a ping-pong ball. (改为一般疑问句) she a ping-pong ball
19. Does Helen have a dictionary (作肯定回答) ， .
20.Tony has a baseball bat. (改为一般疑问句 _____ Tony _____a baseball bat 一、选择适当的词填空（用do 和 does/don’t doesn’t填空）
Do you like soccer Yes, I do .
Do they like ping--pong Yes, they do .
Do Tony and Ben like baseball No, they don’t .
Do your friends like tennis Yes, they do .
Does your brother like basketball No, he doesn’t .
Do you like basketball Yes, I do .
Do they like salad No, they don’t .
Does Jenny have white sweaters Yes, she does .
Does Peter have black trousers Yes, he does .
Does your father like apples Yes, he does .
Do your friends like bananas No, they don’t .
Do your father and mother have milk for breakfast Yes, they do .
I _____don’t__( don’t /doesn’t）play sports.
You _____don’t____( don’t /doesn’t）like ice-cream.
My parents__don’t______( don’t /doesn’t） want to watch TV.
His friend __doesn’t_____( don’t /doesn’t）eat breakfast.
Mary __doesn’t_____( don’t /doesn’t）like salad.
— Does he have a tennis ball —Yes, he does .
— Does Anna have a ping-pong bat —Yes, she does .
— Do Mike and Eric have some balls —No, they don’t
二.按要求完成句子。
1. Jenny has a ping-pong bat. (改为一般疑问句)
__Does___ Jenny _have____a ping-pong bat
2. I like to eat vegetables every day. (改为一般疑问句)
___Do___ you like to eat vegetables every day
3. They like bananas. (改为否定句)
They __don’t____ ___like___ bananas.
4. Tom likes apples.(改为一般疑问句)
_Does_____ Tom __like____ apples
5. Does John like chicken (否定回答)
— __No_____ , ___he_____ ____doesn’t___.
6.I like salad. (改为一般疑问句) _Do______ ___you___ __like____ salad
7.Do you like bananas (作肯定回答) _Yes____ , _____I___ ____do_____.
8.Do they like milk (作否定回答) __No____, __they____ _don’t________.
9.Does he like milk (作否定回答) ___No____, ____he___ _doesn’t_______
10.I like tomatoes. (把I改成 he重写句子)He __likes_______ ____tomatoes_______.
11.Linda and Alice like carrots. (改为一般疑问句并作肯定回答)
___Do Linda and Alice like carrots______ ___________Yes, they do______ .
12.你喜欢西红柿吗 __Do_______ you like ______tomatoes_____
13.你弟弟喜欢鸡蛋吗？不，他不喜欢。
____Does___ your brother ___like____ __eggs_____ No, he ____doesn’t_____ .
14.I have three English books. (改为否定句)
I don’t have three English books.
15. I have a new volleyball. (改为一般疑问句)
Do you have a new volleyball
16. Does Li Lei have a tennis ball ( 作否定回答)
No ， he/she doesn’t .
I have a computer. (改为否定句)
I don’t have a computer.
18. She has a ping-pong ball. (改为一般疑问句)
Does she have a ping-pong ball
19. Does Helen have a dictionary (作肯定回答)
Yes ， she does .
Tony has a baseball bat. (改为一般疑问句)
____Does_ Tony ___have__a baseball bat

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