Unit 4 I used to be afraid of the dark. Used to 的用法和结构 课件（共20张PPT）

(共20张PPT)
Unit 4
I used to be afraid of the dark.
学习目标
1.Used to 的用法和结构
2.Used to ,be used to doing和be used to do的区别
How has the policy changed your life
We used to have too much homework.
But now we spend less time on homework.
used to “过去常常做某事”
No,we didn’t.
We used to take after-class lessons on weekends.
Did you use to relax yourselves on weekends
Did+主语+use to ... “过去经常做某事吗？”
Students didn’t use to be happy.
didn’t use to =过去不经常做某事
But now we have more free time to do the things we like.
used to的用法
I used to go to bed early，but now I stay up late.
我过去常常睡得早，但现在我每天熬夜。
They used to take after-class lessons on weekends.
他们过去在周末上辅导课。
Eric used to be short .
Eric 以前很矮。
used to用来表示________发生的动作或存在的状态，但现在已不发生或不存在了，意为“_________”,后接_____________,used不随主语人称的变化而改变。
过去经常
过去常常
动词原形
句型结构
①肯定句：主语＋_________＋___________。
Eric used to be short .
Eric 以前很矮。
I used to have too much homework.
我过去有太多家庭作业。
used to
动词原形
连词成句：
I used to be thin.
used, be, I, to, thin
句型结构
②否定句：主语＋____________＋___________
主语＋____________＋___________
e.g.She didn't use to walk after supper.
She usedn’t to walk after supper.
她过去晚餐后不散步。
I didn’t use to be short.
I usedn’t to be short.
我以前个子不矮。
didn't use to
动词原形
usedn’t to
动词原形
他以前不喜欢读报纸。
He ______ ______ to like ______ newspapers.
didn’t use reading
翻译：
句型结构
③一般疑问句：_____＋主语＋_______＋动词原形……？
回答：_____，主语＋____./_____，主语＋________.
一般疑问句 :_____＋主语＋____＋动词原形……？
回答： _____，主语＋_____./____，主语＋_______.
eg：Did he use to wear glasses 他过去戴眼镜吗？
Yes，he did./No，he didn't.
Used he to wear glasses
Yes，he used./No，he usedn't.
Did
use to
Yes
did
No
didn't
Used
to
Yes
used
No
usedn't
改错题
Did he used to be excise
Did he use to excise
【拓展】
(1)be used to (doing)sth.“习惯于(做)某事”，在此结构中，to为介词，后接名词或动词 ing形式。eg:I am used to walking to school.我习惯于走路去上学。
(2)be used to do sth.“被用来做某事”，为被动语态形式。eg：This kind of wood is used to make paper.这种木头是被用来做纸的。
填空
书架是被用来储藏书的。
The bookshelf __ ___ ___ _____ books.
is used to store
We used to live in old houses.
There are many tall
buildings.
Talk about the great changes in our hometown with the structure”used to”.
Activity
summary
be used to do sth. 被用来做某事
be used to sth. / doing sth.
习惯于某事 / 做某事
Something you like
Personality（性格）
Appearance （外貌）
the food you like
What has changed？
Homework
Write a short passage to describe
your and your parents’ changes with the structure “used to do”.
Thank you