Unit 2 Saving the Earth Topic 1 Pollution has causes too many probSection A（课件）(共23张PPT)

(共23张PPT)
仁爱版·九年级第一学期
Topic 1 Pollution has caused too many problems. Section A
Unit 2 Saving the Earth
Let's enjoy a short play!
1. Can you guess what kinds of animals there are in the play
2. What does the play mainly talk about
As a matter of fact, we share the same world with animals and plants. However, with the development of economy and the increasing population, pollution is here and there, and it has caused too many problems.
3 A. Listen to the sentences and number the pictures.
5
3
2
1
4
6
1. People _____ _____ _____ too many trees, so
I don’t have enough leaves to eat.
2. I live in trees but now many trees _____ _____.
3. I like leaves and grass, but now they _____
____________.
4. I _____ _____ hungry for months because of
less bamboo.
5. Human polluted the sea, so I _____ _____ _____.
6. The water _____ _____ many years ago. But it
_____ _____ _____ for me to live in now.
B. Listen again and complete the sentences.
have cut down
have gone
have
disappeared
have been
don’t live happily
was clean
is too dirty
Two years ago, our friend Kangkang went to the West Hill for an unforgettable trip. He took many pictures. Let's go into a wonderful world with him.
What is in the picture
The bees and butterflies are dancing.
bee
butterfly
There are some bees and butterflies.
What are they doing
There be+ sb/ sth + doing sth
意为：有某人、某物正在做某事
There are some birds singing.
There are beautiful butterflies dancing.
There is a bee flying.
There are some fish swimming in the stream.
。
There be…doing sth…
……有……在做某事
e.g. There are some people waiting for the bus at the bus stop.
e.g. There are some children having a picnic in the park.
a place with
a clear stream
green trees
beautiful flowers and grass
fresh air and blue sky
lovely bees and butterflies
How beautiful it is!
chemical factories
waste water
pour...into...
['kem k( )l] 化学的
废弃的
把...倒入
What has happened there
There are several chemical factories
pouring waste water into the stream.
The flowers and grass have gone!
= have disappeared
Oh! My goodness!
What a mess!
What a shame!
Do you want to have a picnic here？
Pollution is terrible. It is harmful to our health.
=is bad for
1. It was a _______________. 2. There were _______________________. 3. The air was _______________________ and you could see _______________________. 1. ___________________
have gone.
2. The water is ________and smells ___________.
3. There are several ________________ pouring _______________ into the stream.
4. _____________has changed.
beautiful place
lots of flowers and grass
fresh and the water was clean
bees and butterflies dancing
The flowers and grass
so dirty
terrible
chemical factories
waste water
Everything
Listen to 1a carefully and fill in the blanks in 1b.
Read 1a twice by yourselves,
then practice 1a in groups.
Work in groups. Try to retell 1a with the key words below.
beautiful--fresh clean--dancing
gone--dirty-- terrible--mess
chemical--pour--waste
2 Work in pairs. Look at the pictures and make up conversations similar to the example with your partner.
Example:
A: There were lots of flowers and grass
when I visited the village last year.
B: But now the flowers and grass have
gone.
A: What has happened here
B: The villagers have destroyed them.
lake/fish
factory/
pollute
hill/ trees
farmers/cut down
village/flowers and grass
villagers/destroy
summary
We learn:
1. Express exclamation:
What a mess! What a shame! Oh, my goodness!
2. Know the differences between Simple Past
and Present perfect.
It was a beautiful place.
Everything has changed.
We can:
1. Some words:
bee, butterfly, mess, shame, several, pour, waste,
destroy, pollute, goodness
2. Some phrases:
see sb. doing sth. pour…into..
3. Some sentences:
There are…doing…
Homework
1. Read 1a.
2. Write a passage according to Part 4.
3. Finish Section A in your workbook.
4. Preview Section B.
4 Work in groups and talk about pollution in a place you are familiar with. The following sentences may help you.
…ago, it was… Now, … have/ has gone. What has happened Everything has changed. Oh, my goodness!
Exercises
单项选择
( ) 1. Look! There are some boys ________ on the playground.
A. play football B. are playing football
C. playing football D. plays football
( ) 2. — I’m sorry I can’t go shopping with you. I am ill.
— ________
A. What a mess! B. What a shame!
C. What a pity! D. B and C
( ) 3. — Don’t ________ water. We must save every drop of it.
— Sorry, I won’t do it again.
A. waste B. throw
C. play D. leave
C
D
A
Exercises
用所给动词的适当形式填空。
1. When I entered the room, I saw Maria ________ (read) a
Chinese book.
2. What a shame! The flowers and trees in the park _________
(go).
3. Everything _____________ (change) in the past few years.
4. Pandas don’t have enough bamboos ________ (eat) now
because of the pollution.
5. — Where have they been
— They __________ (be) to the Great Wall. They _______
(have) a good time there the day before yesterday.
reading
have gone
has changed
to eat
have been
had
THANK YOU