(共16张PPT)
Unit4
I used to be afraid of dark.
Section A 4a-4c
Learning objectives
话题 : 谈论变化
重点 : 能正确使用used to do表示人物过去的特点，或询问过去的情况
难点 : 掌握used to do的一般疑问句形式和否定形式
The teacher used to be glowing before school started.
The mother used to be awful before school started.
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.
Grammar Focus
used to“过去常常”，表示过去习惯性的动作或存在的状态，强调与现在的对比，暗示现在不做了。
to为不定式符号，后跟动词 _____。
used to只用于一般过去时态，____ 人称和数的变化。
没有
原形
一、used to 的句式变化
01
1. 肯定句式：主语＋ used to ＋动原 …
I used to go to the cinema, but I never have time now.
02
2. 否定句式：
Mike used not to study hard. = Mike didn’t use to study hard.
used not
didn’t use
主语 + to + 动原.
03
3. 疑问句式：Did＋主语＋use to＋动原+~？ = Used＋主语＋to＋动原+~？
Did you use to play the piano = Used you to play the piano
04
4. 反意疑问句：
She used to be very thin, didn’t/usedn’t she
He didn’t use to drink, did/used he
did/didn’t +主语
used/usedn’t +主语
主语+ used to do sth.,+
一、used to的句式变化
二、used to的相似结构辨析
Video Time
Watch the video.
Try to write down the sentences containing “use to be”.
1.I used to eat junk food.
2.I am used to eating fruit and vegetable.
3.They are used to make vegetable salad.
二、used to的相似结构辨析
相似结构 意义 时态
used to do sth.
be used to doing sth.
be used to do sth.
典例： He used to ________ during the day, but now he is used to ________ at night.
A. write; write B. writing; write C. write; writing D. writing; writing
解析： 句意-他过去常常在白天写作，但是现在他习惯于晚上写作。
只用于过去时
用于多种时态
被动语态
过去常常做某事
习惯做某事
被用于做某事
4a
P28 Write sentences about the past using used to.
1. Grace / watch a lot of TV / watch a lot of movies
Grace used to watch a lot of TV. She didn’t use to watch a lot of movies.
2. my mom / have curly hair / have straight hair
___________________________________________________________
3. Jerry / read books on European history / read books on African culture
___________________________________________________________
___________________________________________________________
4. Sandy / teach British English / teach American English
___________________________________________________________
My mom used to have curly hair. She didn’t use to have straight hair.
Jerry used to read books on European history. He didn’t use to read books on African culture.
Sandy used to teach British English. She didn’t use to teach American English.
4b
P28 Look at the information and write sentences about Emily.
Five years ago Now
didn’t eat a lot of vegetables loves carrots and tomatoes
listened to pop music enjoys country music
watched scary movies hates scary movies
didn’t read a lot of books reads at least six books a year.
e.g. Emily didn’t use to eat a lot of vegetables, but now she loves carrots and tomatoes.
1. Emily used to listen to pop music, but now she enjoys country music.
2. Emily used to watch scary movies, but now she hates them.
3. Emily didn’t use to read a lot of books, but now she reads at least six books a year.
4c
P28 Which of these things did you use to be afraid of Which ones are you still afraid of Check the boxes and then ask your partner.
Me My partner
I used to be afraid of… I’m still afraid of… My partner used to be afraid of… My partner still afraid of…
the dark
being alone
flying
high places
giving a speech in public
Summary
1.肯定句
主语＋ used to ＋动原 …
used to do sth.
1.过去常常做
2.一般过去时态
2.否定句
主语＋ didn’t use to ＋动原 … = 主语＋ used not to ＋动原 …
3.疑问句
Did＋主语＋use to＋动原+~？ = Used＋主语＋to＋动原+~？
4.反意疑问句
主语 + used to do sth., did/didn’t +主语 / used/usedn’t +主语
5.相似结构辨析
used to do sth.
be used to doing sth.
be used to do sth.
过去常常做某事
习惯做某事
被用于做某事
Exercises
一、单项选择
Mary is used ______ with her grandparents now.
A. live B. living C. to live D. to living
2 As we know, elephants ________some heavy jobs.
A. are used to do B. are used to doing C. used to do D. used to doing
3. I used to ______ until midnight , but now I‘m used to ___ very early.
A. reading; going to bed B. reading; go to bed
C. read; going to bed D. read; go to bed
4. --I _____ in the lake near my house when I was a child.
--But the lake has been polluted since two years ago.
A. used to swim B. used to swimming
C. am used to swim D. am used to swimming
Exercises
二、完成句子
5. He used to walk his dog in the park near his home.(否定)
He ____ ______to walk his dog in the parknear his home.
6. She used to wear a hair band.(改为一般疑问句并作肯定回答)
--____ she ___ ___ ______ a hair band
--Yes, she ____.
7. The boy used to chew gums a lot, ______ he (完成反意疑问句)
8. A big supermarket was once in this village. (同义句转换)
_____ _____ to ______ a big supermarket in this village.
didn’t use
或 used not
Did use to wear
did
didn’t
或usedn't
There used be
there used to be 过去曾有
