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Unit 4 Then and now
A – Let’s talk
Grandpa: Wow, a library!
There was no library in my old school.
Sarah: Tell us about your school, please.
Grandpa: There was only one small building on a hill.
Wu Yifan: Could you see stars at night?
Grandpa: Yes, I liked the stars.
Sarah: Me too.
One day I’m going to visit the moon.
Wu Yifan: The Americans took about five days to get there in
1969.
Sarah: How do you know that?
Wu Yifan: Easy, I looked it up on the Internet.
Grandpa: Ah! There were no computers or Internet in my time.
B – Let’s talk
Chen Jie: John, come and look at Mike’s old photos!
John: That’s funny, Mike!
You’re wearing a pink T-shirt!
Mike: Yes, but I don’t like pink now.
Chen Jie: We are all different now!Mike: Right.
Before, I was quiet.
Now, I’m very active in class.
How about you?
John: Well, I was short, so I couldn’t ride my bike well.
Now, I go cycling every day.
I like it very much.
Chen Jie: That’s good exercise.
B – What a dream!
Wu Yifan had a race with his father and Max.
There were many people there.
His father ran very fast, but Wu Yifan could not.
There was nothing he could do.
He was so worried.
“I could run fast at school,” he thought.
“Why am I so slow now?”
The Robin said, “Drink this!” and gave Wu Yifan some water.
Wu Yifan drank it and suddenly he felt good.
He could run fast again.
There was a second race.
There were many animals in that race.Wu Yifan ran like a cheetah.
He could win the race!
But suddenly he tripped and fell.
Then he woke up.
He was in bed.
It was all a dream!
C – Story time
Cavemen often ate raw meat.
They didn’t cook their food.
Now there are many things to help you cook.
In 2050, there will be house robots.
They will cook, clean and wash the dishes.
Zip: Oh, cavemen didn’t cook their meat?
Zoom: It’s OK.
They didn’t do the dishes either!
There were many trees, and there were many clean rivers.
Now, there are more and more buildings.
We should help the earth now, so birds will have homes and the
forests will be healthy and green again.
Zip: Look! How beautiful the world was!
Oh! What will the birds do?Zoom: Don’t worry.
People will help them.
Before humans lived on the earth, whales already lived in the
sea.
Now, there are not many whales.
If we change now, whales and humans will have a bright future.
Zip: Heal the world!
Zoom: Make it a better place!
Words in unit 4
dining hall 饭厅
grass 草坪
gym 体育馆
ago 以前
cycling 骑自行车运动（或活动）
go cycling 去骑自行车
ice-skate 滑冰
badminton 羽毛球运动
star星
easy 容易的
look up （在词典中或通过电脑）查阅
Internet 互联网different 不同的
active积极的；活跃的
race 赛跑
nothing 没有什么
thought（think的过去式）想
felt（feel的过去式）感觉
cheetah 猎豹
trip绊倒
woke（wake的过去式）醒
dream 梦
