Unit 4 Then and now（Grammar-Fun time）课件（共20张PPT）

(共20张PPT)
Unit 4 Then and now
（Grammar time & Fun time）
F
F
F
T
3.I couldn’t drive twenty years ago.
1.Seventeen years ago, I could teach.
4.Three days ago, I was very fat.
2.A week ago, I couldn’t speak English.
Game
couldn’t= could not
could/couldn’t后接动词原形
Learning tip1
F
F
F
T
3.I couldn’t drive twenty years ago.
1.Seventeen years ago, I could teach.
4.Three days ago, I was very fat.
2.A week ago, I couldn’t speak English.
Game
___________________________________________________
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。
Learning tip2
Learning tip1
couldn’t= could not
could/couldn’t后接动词原形
F
F
F
T
3.I couldn’t drive twenty years ago.
1.Seventeen years ago, I could teach.
4.Three days ago, I was very fat.
2.A week ago, I couldn’t speak English.
Game
___________________________________________________
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。
Learning tip2
Learning tip1
couldn’t= could not
could/couldn’t后接动词原形
I couldn’t drive twenty years ago.
= Twenty years ago, I couldn’t drive.
Learning tip1
couldn’t= could not
could/couldn’t后接动词原形
When do we use “ago”
Simple present tense B. Simlpe past tense
（一般现在时） （一般过去时）
一般过去时PK一般现在时
区别？
Look and find
Then (…years ago) Now
Mike
Mr Brown
Grandpa
Mrs Brown
could read, draw
couldn’t write
can do many things
wrote letters
used the telephone
writes emails
has a mobile phone
made friends at…
bought things from...
has e-friends
does shopping
listened to the radio
read newspapers
watches …
reads …
一般过去时PK一般现在时
区别？
Look and find
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
Differences
PK
A prize
Watch and finish
Try to remember
what happened to the
duck as much as you can.
(记得发生在丑小鸭身上
的事情越多越好)
1. In the past, the duck ugly.
2. His brothers and sisters like him.
3. He fly. But he could swim very well.
4. His friends, the cat and the hen all at him.
So he felt sad.
5. Now it is spring. The duck can .
He ___ a beautiful swan now!
was
didn’t
couldn’t
laughed
fly
is
Tip:注意观察时间和主语
Look and finish
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
Quick reponse
Little train
Twenty years ago
My hair was short.
1.Which was I twenty years ago
A
B
C
D
2.What about five years ago
Listen an choose
… year(s) ago, I was …
I could …
I couldn’t …
I didn’t …
Now I’m …
I can …
I …
Is it good to grow up Why
Show time
Listen and say
but now .
but now .
3. , but now … … .
4. , but now … … .
use
go...by
Time changes our life.
Read and say
选择一个说一说
1.Many years ago, children could play with
friends,
2.Many years ago, people ate dumplings,
Homework:
1.Write something about you in the
past and now.
2. Make a summary of irregular
past tense forms of verbs.
（总结不规则动词过去式）
See you !