文档介绍：She used to be heavy,but she is thin now.
My sister used to have curly hair ,but she has straight hair now.
Used tShe used to be heavy,but she is thin now.
My sister used to have curly hair ,but she has straight hair now.
Used to do 的含义
“过去常常”，表示过去习惯性的动作或状态，但如今已不存在。
Eg:
I used to play with my friends after school.
They used to take a walk after dinner .
She used to get up at 8:00 o'clock in the morning.
Tom used to be short .
You used to wear glasses.
(一) 肯定句式
主语 + used to + 动词原形
( Sb + used to + do sth )
Eg :
I used to go fishing ,but I never have time now .
(二 ) 否定句式
A 主语+did not use to +动词原形…
My sister did not use to eat eggs ,but she likes eating them now .
+ used not to +动词原形…
She used not to play basketball.
did not=didn’t used not=usedn’t
美式英语用A种形式 ，英式英语用B种形式
(三) 一般疑问句式
Did +主语+use to+动词原形... ?
Used +主语+ to +动词原形…?
Eg:
Did you use to go swimming in the river?
Used you to go swimming in the river?
(四) used to 用于省略句时，肯定式保 留to ,否定式不保留to
Eg:
—— Used you to play basketball?
—— Yes ,I used to.
—— No, I usedn’t .
您能翻译吗？
1. 我爸爸过去曾经是一名工人。
。
，但是现在喜欢踢足球。
father used to be a worker.
used to ride a bike to school.
used to play basketball ,but he likes playing football now.
句 型 转 换
She used to drink .
She usedn’t to drink.\She didn’t use to drink .
Used she to drink ?\ Did she use to drink?
Yes ,she used to .\ No, she usedn’t .
Yes ,she did .\No, she didn’t.
改为否定句和一般疑问句，并作肯定和否定回答