动词 do 的用法：
动词 do 在初中英语中主要有两种用法，一是作实义动词，二是作助动词，助动词的用法较多，较复杂！ does（三单）- doing（现在分词）- did（过去式）- done（过去分词）
一、do 作实义动词，译为“做，干”
do homework 做作业 do housework 做家务
Students do homework everyday. 学生每天都要做作业。
We do the housework every Sunday. 我们每周天做家务。
have...to do 有...要做
I have a lot of work to do. 我有很多工作（事情）要做。
I have nothing to do. 我没什么事情要做。
have/there be nothing to do but do... 没什么可做的，只有...（考查but后用动词原形）
I have nothing to do but read at night. 晚上除了读书，没其他什么可做的了。
There is nothing to do but watch TV. 没什么可做的，只有看电视。
do well in 擅长于... 等于 be good at（后接 sth. 或 doing）
Tom does well in math. Tom擅长数学。= Tom is good at math.
My sister does well in swimming. 我妹妹擅长游泳。= My sister is good at swimming.
When I was young, I did well in English. 我小的时候擅长学数学。
have...to do with... 与...有关系
The man have a lot to do with the accident. 这个男人与事故有很大关系。
I have nothing to do with him. 我跟他一点关系都没有。
（do a ）good job 干得好（漂亮）！
well done 干得好（漂亮）！
Well done ! You did it. 干得好，你做到了！
二、do 作为助动词，无实际意义
初中英语，在一般现在时态与一般过去时态中，助动词do协助构成 “否定，疑问”，
一般现在时使用do 或者 does（三单），一般过去时使用 did；
I don't want to go shopping. 我不想去购物。
He doesn't know where to go. 他不知道要去哪里。
Jerry didn't play the guitar yesterday. Jerry昨天没有弹吉他。
祈使句的否定：
Go home now! 现在回家。
Don't go home now! 现在不要回家。
Don't be afraid ! 别害怕！（含be动词的祈使句否定依然加 don't）
（注意：在一般现在时态的三人称单数与一般过去时态中，借助助动词否定后，动词要还原）
如：He has a football. — He doesn't have a football. （has—have）
He went to his uncle's.— He didn't go to his uncle's. （went—go）
（无be动词情况下）一般疑问句形式：助动词提前，实义动词用原型; 回答也用do/does/did.
Do you want to go to the movies? 你想去看电影吗？
Yes, I do. No, I don't.
Does she like apples? 她喜欢苹果吗？
Yes, she does. No, she doesn't.
Did your father go to the library last weekend？你爸爸上周去了图书馆吗？
Yes, he did. No, he didn't.
（无be动词情况下）特殊疑问句形式：特殊疑问词+助动词+主语+谓语动词（原型）+其他
What do you want to eat? 你想要吃什么？
Where does she put the book? 她把书放哪里了？
How did you get to Beijing? 你怎么去的北京？
（注意：在一般现在时态的三人称单数与一般过去时态中，借助助动词变疑问后，动词要还原）
He did his homework, didn't he? 他做了作业，不是吗？
He plays football well, doesn't he? 他踢球踢得好，不是吗？
You don't want to go, do you? 你不想去，对吗？
知识拓展：初中英语还出现过 do 表示“强调”的情况，但不要求掌握，理解为主！
Come to my birthday party! 来参加我的生日派对！
Do come to my birthday party! 一定要来参加我的生日派对！
He likes reading. 他喜欢阅读。
He does like reading. 他真的喜欢阅读。
初中英语除了考查do的以上用法，还经常考查既有助动词，又有实义动词的情况；考查方式：变为否定句，一般疑问句和会划线部分提问。
如：He does well in music. (变为否定)
- He doesn't do well in music. 我不擅长音乐。
Sarah did her homework last night. (变为一般疑问句）
- Did Sarah do her homework last night? Sarah昨晚做了作业吗？
He did some shopping with his friends. （对划线部分提问）
What did he do with his friends? 他和他朋友做了什么事？
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