Do 和 Does 的用法
作为助动词的 do 和 does 是没有词义的，它们在句中的构成一般现在
时的疑问句和否定句。

三单用 does, 复数用 do
●询问动物是否喜欢什么句型：
Do snakes like music? 【复数 , 用 do 提问，they 答】
肯定回答：Yes, they do.
否定回答：No, they don’t.
Does snake like music? 【单数，用 does 提问， it
答】
肯定回答：Yes, it do.
否定回答：No, it don’t.
●询问别人是否经常干某事句型：Do you often ? 你经常干什么吗？
回答： Yes, I do/ No, I don’t.
例： Do you often play games? 你经常玩游戏吗？
Yes,I do/ No, I don’t.
●询问别人是否想要干某事句型：Do you want to +动词原形?你想干什么吗？肯定回答：
Yes, I(we) do/ Yes, please.
否定回答：No, I (we) don’t/ No, thank you
例： Do
Yes,
No, you
I
want
I(we)
(we)
to drink a coffee?
do/ Yes, please.
don’t/No,thank
你想喝一杯咖啡吗？
you
练习题：
1.What__you need for breakfast? Some milk and an egg.
2.I__want any juice.I want some milk.
3.Do Ben and you like vegetables? No,we___.
4.How__they go to school?By underground.
5.__your friend have lessons every day?No,he__.
6.What__your father do? He's a shop assistant.
7.Tom,__make a noise in class,please.
8.Kitty__do her homework at school.She___it at home. 三将下列句子改为否定句和一般疑问句
1.I do my homework at home.
否定句：
一般疑问句：
2.We have a picnic on Sundays.
否定句：
一般疑问句：
3.Ben rides his bicycle at four o'clock.
否定句：
一般疑问句：
4.Kitty goes to bed at half past nine.
否定句：
一般疑问句：
5.Jane's father gets up at quarter past six every morning. 否定句：
一般疑问句：。