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2、掌握以下句型的用法：
①used to ②didn’t use to ③You used
to…, didn’t you?
④ Did he use to wear glasses?
Yes, he did. / No, he didn’t.
3、学会表达人和事物的“今昔对比”
Tom used to be very short.
You used to be short, didn’t you?
He used to be so shy and quiet.
Mary used to have short hair.
Lucy used to have red hair.
Read the following sentences and pay attention to the underlined parts.
Grammar Focus
I used to be short.
I didn’t use to be popular in school.
Paula used to be really quiet.
She didn’t use to like tests.
You used to be short, didn’t you?
Yes, I did. / No, I didn’t.
Did he use to wear glasses?
Yes, he did. / No, he didn’t.
I used to be afraid of the dark.
我过去怕黑。
“used to + 动词原形”表示过去习惯或经常发生的动作或状态，（现在已经不再存在了）, 可用于所有人称。
used to do sth 过去常常做某事
used to be+adj 过去常常…
语法探究
否定形式为：didn’t use to do
疑问形式为：Did … use to …?
You used to be quiet, didn’t you?