仁爱科普版九年级上册Unit 2 Saving the earth.Topic 1 SectionA 课件(共12张PPT，无音频)

(共12张PPT)
Topic 1 Pollution has caused too many problems
Unit 2 Saving the Earth
Section A
What can you see in the picture
bee
butterfly
What has happened to the West Hill now
Do you think they still want to have a picnic here
1b Listen to 1a and mark the words with P (Past) or N (Now).
____ beautiful ____ butterflies ____ dirty
____ grass ____ terrible ____ factory
____ bees ____ fresh ____ clean
____waste water
P
P
N
P
N
N
P
P
P
N
There are several chemical
factories pouring waste water
into the stream.有几家化工厂正在往小溪里排放废水。
There be…doing sth… ……有……在做某事
There is a bird
singing in the tree.
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 _______________________.
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
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!
village/flowers and grass
villagers/destroy
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.
hill/trees
farmers/cut down
lake/fish
factory/
pollute
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
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.
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…
Thank you.