Unit2 Saving the earth Topic1 SectionA课件＋音频(共25张PPT)仁爱版九年级英语上册

(共25张PPT)
Unit 2
Saving the Earth
Topic 1 Section A
学习目标
预习检测
知识梳理
课堂总结
学习
导航
重点探究
当堂检测
新课导入
Have you ever had a picnic
Did you have a good time
能熟悉并正确运用本课时的重点单词和短语
1
2
能谈论不同种类的污染，提高环保意识
1.—______ my glasses
—Yes, I saw them on your bed a minute ago.
A.Do you see　　　　　 B.Had you seen
C.Would you see D.Have you seen
2.—Have you ever ______ an amusement park
—Yes, I have. I ______ Fun Times Amusement Park last year.
A.been to; have gone to B.gone to; have been to
C.go to; went to D.been to; went to
预习检测
D
D
3.The flowers smell_____, which makes me very happy.
A.good B.well C.terrible D.bad
4.I often see Tom_____basketball after school on the court.
A.playing B.to play C.plays D.play
5. — I'm sorry I can't go shopping with you. I am ill.
— ________
A. What a mess! B. What's worse!
C. What is a pity! D. B and C
A
D
A
知识梳理
Key points
1. … and you can see bees and butterflies dancing.
see sb. doing sth. 意为“看见某人正在做某事”，强调动作正在进行。
例如：　　
　I saw him talking with a man on my way home yesterday.
昨天我回家的路上，看见他正在和一个人谈话。
When I entered the room, I saw her watching TV.
当我进门的时候，我看见他正在看电视。
Key points
【拓展】
see sb. do sth.意为“看到某人做某事”，强调看到某人做过某事或经常做某事。
例如：
I often see him dance in the classroom.
我经常看见他在教室里跳舞。
I often see him help that old man do cleaning at weekends.
周末，我经常看见他帮助那个老人打扫房间。
Key points
2. There were several chemical factories pouring waste water into the stream.
当时几家化工厂正在往小溪里排放废水。
① there be + sb./sth. + doing sth. 有某人/某物正在做某事
eg.
Listen! There is someone singing in the next room.
听！有个人在隔壁唱歌。
② pour…into… 把……倒入……
eg:
Please pour the red wine into the glass.
请把红酒倒进杯子里。
环境污染前后的对比
Kangkang, Jane, Maria and Michael are planning a picnic for Sunday.
They will go to the West Hill.
Oh, my goodness. It was a mess!
There were several chemical factories pouring waste water into the stream.
Two years ago
Is it beautiful
What has happened there
There are lots of flowers and grass.
We can see bees and butterflies dancing.
bee
butterfly
The West Hill was beautiful
The air is fresh and the water is clean.
Now
1a Listen, look and say.
(Kangkang, Jane, Maria and Michael are planning a picnic for Sunday.)
Jane and Maria: Kangkang, where shall we go
Kangkang: What about the West Hill
Jane: I went there two years ago. It was a mess. There were several chemical factories pouring waste water into the stream.
Maria: What a shame!
Kangkang: I have heard it has become a beautiful place.
There are lots of flowers and grass.
Michale: Sounds great! Let’s go there.
Maria: Oh, what a beautiful place! The air is fresh and the water is clean, and you can see bees and butterfies dancing.
Kangkang: Everything has changed.
Michael: Do you want to have a picnic here
Jane: Of course.
(On Sunday, they come to the West Hill.)
1b Listen to 1a and mark the words with P(Past) or N(Now).
___ beautiful ____ butterflies
____ grass ____ factory
____ bees ____ fresh
____ clean ____waste water
P
N
N
P
N
N
N
N
1c Read 1a and complete the sentences in the table. Then
retell 1a to your partner.
Two years ago Now
1. It was a ______________. 2. There were several ________________ pouring _______________ into the stream. 1. The air is ________and the water is _________.
2. You can see __________________ dancing.
3. _____________has changed.
mess
fresh
clean
bees and butterflies
chemical factories
waste water
Everything
Role play
(Kangkang, Jane, Maria and Michael are planning a picnic for Sunday.)
J&Maria: Kangkang, where …
K: What about…
J：I went… It was…There were…
M：What……
K：I have heard it has ……There are……
M: Sounds…!Let’s…
(On Sunday, they come to the West Hill.)
M: Oh, what ...! The air is … and the water is …，and you can see…
K: Everything…
M: Do you…
J: Of…
Pair work
Work in pairs. Look at the pictures and make up conversations similar to the example with your partner.
A: The villagers destroyed the flowers and grass when I visited the village last year.
B: But now the flowers and grass have come back.
A: What has happened here
B: The villagers have learned that they were wrong. And they have done a lot to make the village a better place.
village/flowers and grass
villagers/destroy
hill / trees
farmers/cut down
1
city/lake/fish
factory/pollute
2
3 A. Listen to the sentences and number the pictures.
5
3
2
1
4
6
B. Listen again and complete the sentences.
1. People _____ _____ _____ trees, Now I have enough leaves to eat.
2. I live in trees. People have stopped ______ ______ trees. So I have more family members.
3. Leaves and grass ___________ many years ago. But now they have come back. I can have enough food.
4. I have found more bamboo on the mountain. I don’t have to ______ ______ _____ any more.
5. In recent years, I _____ _____ ______ ______ to make the sea clean again.
6. I couldn’t live in the river because it ___ ____ _____ for me to live in. Now it has become clean again, so I am safe.
have planted more
cutting down
disappeared
worry about food
have seen people’s effort
was too dirty
Group work
Oh, my goodness!…ago, it was… Now, … have/ has come back. What has happened Everything has changed.
Work in groups and talk about pollution in a place you are familiar with. The following sentences may help you.
通过以上活动，我们可以知道：一个地方的环境在几年之间能发生翻天覆地的变化。描述变化可用到的句子有： …ago, it was…；1._________________；2.________________________；Everything has changed等。
当堂检测见DCF课件
活动小结
There were/was…
Now, … have/ has come back.
当堂检测
情景交际。
1. 你可以看见蜜蜂和蝴蝶正在飞舞。可以这么说：
2. 这真是一个美丽的地方！可以这么说：
3. 当时有几家化工厂正往小溪里倒废水。可以这么说：
You could see bees and butterflies dancing.
Oh, what a beautiful place!
There were several chemical factories pouring
waste water into the stream.
Unit 2
Topic 1
Section A
描述环境变化可用的句子:
…ago, it was…；
There were/was…
Now, … have/ has come back.
Everything has changed.
谈论不同种类的污染，提高环保意识