I used to be afraid of the dark 4
2009-08-11 21:17:58佚名
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1. used to do sth. 过去常常做某事
否定形式： didn’t use to do sth. / used not to do sth.
如：He used to play football after school. 放学后他过去常常踢足球。
Did he use to play football? Yes, I did. No, I didn’t.
He didn’t use to smoke. 他过去不吸烟。
2. 反意疑问句
①肯定陈述句＋否定提问 如：Lily is a student, isn’t she?
Lily will go to China, won’t she?
②否定陈述句＋肯定提问 如：
She doesn’t come from China, does she?
You haven’t finished homework, have you?
③提问部分用代词而不用名词 Lily is a student, isn’t she?
