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语法——动词之助动词
Part 1:知识点
助动词：do, does, did
do用于一般现在时，主要用来构成一般疑问句、特殊疑问句、否定句、否定祈使句等。
does是do的第三人称单数形式，当主语是she,he,it或第三人称单数名词的时候，用does代替do。
did是do和does的过去式。
具体用法：
构成一般疑问句：
例句：Do you want to go shopping with me 你想要和我一起去购物吗？
Does she like this dress 她喜欢这条裙子吗？
Did you know that 你知道吗？
do/does/did+not构成否定句：
例句：I do not want to be late.我不想迟到。
He doesn’t like to study.他不喜欢学习。
She didn’t go to school last week.她上周没去学校。
否定祈使句：（只用do，不用does和did）
例句：Don’t talk.别说话。
用作代动词：
例句：--Do you like bananas 你喜欢香蕉吗？
--Yes, I do.是的，我喜欢。（do用作代动词，代替like bananas）
Part 2:练习
一、填空。
Julia______（not/drink）tea very often.
What time ______（the banks/close）here
I’ve got a car, but I __________（not/use）it much.
Where ______(do) Ricardo come from
What _______（do）you do
He ______(not) do any sport.
______（do）your sister play tennis
_______（do）you go to the zoo yesterday
How ______（do）you go home last week
______（not）go there!
--______（do）you like swimming --Yes, I ______（do）.
二、按要求完成句子。
1.He is good at playing basketball.（改为一般疑问句，并做肯定回答）
__________________________________________________
__________________________________________________
This book is interesting.（改为否定句）
__________________________________________________
She likes playing the piano.（改为一般疑问句）
__________________________________________________
They do homework after school.（改为一般疑问句）
__________________________________________________
Open your books.（改为否定句）
__________________________________________________
I want to go to the concert today.（改为否定句）
__________________________________________________
7.Do you like Beijing （作肯定回答）
__________________________________________________
8.Does he go to school on foot （作否定回答）
__________________________________________________
Did you read the newspaper （作否定回答）
__________________________________________________
答案：
一、1.doesn’t 2.do the banks close 3.don’t use 4.does 5.do 6.doesn’t 7.Does 8.Did 9.did 10.Don’t 11.Do do
二、1.Is he good at playing basketball
Yes, he is.
This book isn’t interesting.
Does she like playing the piano
Do they do homework after school
Don’t open your books.
I don’t want to go to the concert today.
Yes, I do.
No, he doesn’t.
No, I didn’t.

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