Unit4 Then and now PartA Let's learn 课件（共12张PPT）

(共11张PPT)
Unit 4 Then and now
Part A let's learn
Twenty years ago
six months ago
Tang dynasty
last year
last month
dining hall
gym
grass
grasses
Twenty years ago
There was no gym in my school
twenty years ago.
Now there is a new one in our school.
six months ago
now
Now there___many students in the school.
There ___ no students in the school six months ago.
last month
now
I ____ heavy
last month.
Now I ____ thin.
There were no cinemas.
There were no post offices.
People went by bus.
People didn't go by bus.
People could use the Internet.
People couldn't use the Internet
People went by bike.
People didn't go by bike.
People could use the computers.
People couldn't use the computers.
1. I liked winter before. 改为否定句
______________________________
2.He couldn’t swim last year. 改肯定句
____________________________
3. She don't like apples last month. 改错
____________________________
dining hall grass gym
表示过去的时间
...years ago ...months ago
last year last month
last weekend last night last Monday yesterday the day before yesterday