Unit4 Then and now 第2课时课件(共14张PPT)

(共14张PPT)
Unit 4 Then and now （Grammar time & Fun time）
What did you do yesterday
I …
F
F
T
3.I couldn’t drive thirty years ago.
1.Twenty years ago, I could teach.
2.A week ago, I couldn’t speak English.
The changes of Mike’s family
Then(… years ago) Now
Mike
Mr Brown
Grandpa
Mrs Brown
could read and draw
couldn’t write
can do many things
wrote letters
used the telephone
writes emails
has a mobile phone
listened to the radio
read newspapers
reads and watches news
reads e-books
made friends at school
brought things from shops
has e-friends
does shopping
Then(… years ago) Now
Mike
Mr Brown
Grandpa
Mrs Brown
could read and draw
couldn’t write
can do many things
wrote letters
used the telephone
writes emails
has a mobile phone
listened to the radio
read newspapers
made friends at school
brought things from shops
has e-friends
does shopping
reads and watches news
reads e-books
一般过去时 一般现在时
表示过去的事情或状态 表示目前通常性、
习惯性的事情或状态
动词无三单变化 动词有三单变化
迅速说出下列单词的过去式或原形！
is
flew
take
wear
lose
see
get
went
do
eat
am
were
buy
不规则动词的过去式
… years ago, I was …
Say something about your past
I could …
I couldn’t …
I didn’t …
购物
shopping
学习
learning
娱乐
Entertainment
出行
Transportation
Choose a piece of paper, finished one part of the passage and read in your group.
Twenty years ago, our parents ____ things from shops. Now, they _____ things on the Internet.
Thirty years ago, people _____ learn Computer Studies. Now, many children_____ use the computer well.
Ten years ago, children ______ TV. Now, they _____ computer games.
Twenty years ago, people _____ to work by bike. Now, some of them ______ cars.
bought
buy
didn’t
can
watched
play
went
drive
购物
shopping
学习
learning
娱乐
Entertainment
出行
Transportation
_______ years ago, ________________.
Now, ____________________________.
couldn’t= could not
could/couldn’t后接动词原形
ago表示时间的短语，既可以放在句首，与后面的句子用逗号隔开；也可放在句末。
When do we use “ago”
Simple present tense B. Simlpe past tense
（一般现在时） （一般过去时）
I couldn’t swim twenty years ago.
= Twenty years ago, I couldn’t swim.