Unit 2 Topic 1 Section A课件+内嵌音视频（仁爱科普版九年级上册）

(共23张PPT)
Unit 2 Saving the Earth
Topic 1 Pollution has caused too many problems.
Section A
Learn some new words and phrases.
Get to know: bee, butterfly, pour, villager, destroy
Be able to use: mess, shame, several, waste, cut down
Be able to use some useful expressions.
What a shame!
… you can see bees and butterflies dancing.
There were several chemical factories pouring waste water into the stream.
Talk about the changes caused by pollution.
Make sure that you have mastered the differences between Simple Past and Present Perfect tense.
A: Where have you been/traveled
B: I have been/traveled to ...
Choose the best place for a picnic and tell us why you choose that place.
I think … is the best choice. The air there is fresh.
We can fly kites on the grass.
Have you ever had a picnic
Kangkang, Jane, Maria and Michael are planning a picnic for Sunday.
They will go to the West Hill.
What a mess!
Look! There were several chemical factories pouring waste water into the stream.
Is the West Hill beautiful
What has happened there
What can you see there
We can see bees and butterflies dancing.
bee
butterfly
Is it beautiful now
1a Listen, look and say.
1. There were 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
e.g. There are some people waiting for the bus at the bus stop.
waste water
waste paper
Waste water. 浪费水。
Don’t waste paper. 不要浪费纸。
waste
adj.
v.
倒出；倾泻
pour… into… 把……倒入……
e.g. Pour red wine into the glass.
2. The air was fresh and the water was clean, and you could see bees and
butterflies dancing.
（过去）水清空气新，并且你可以看见蜜蜂和蝴蝶在舞蹈。
see sb. doing sth. 看见某人正在做某事
I see her taking notes carefully.
I saw him working in the garden at this time yesterday.
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
2 Work in pairs. Look at the pictures and make up conversations similar to the example with your partner.
Example:
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
city/lake/fish
factory/pollute
2 Work in pairs. Look at the pictures and make up conversations similar to the example with your partner.
3 A. Listen to the sentences and number the pictures.
5
3
2
1
4
6
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.
B. Listen again and complete the sentences.
have planted more
cutting down
disappeared
about food
have seen people’s effort
was too dirty
worry
4 Work in groups and talk about pollution in a place you are familiar with. The following sentences may help you.
Oh, my goodness! …ago, it was…
Now, … have/has come back.
What has happened Everything has changed.
We learn:
1. Express exclamation:
What a shame! Oh, my goodness!
2. Know the differences between Simple Past
and Present perfect.
It was a mess.
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…
一、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
C
D
( ) 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
A
二、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 have_________ (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
gone
has changed
to eat
have been
had
1. Write a passage according to Part 4.
2. Preview Unit 2 Topic 1 Section B.