《Pollution has caused too many problems》SectionA PPT
第一部分内容：Guess
Is the West Hill beautiful?
What can you see there?
We can see bees and butterflies dancing.
Brainstorm
What a shame/mess!
The flowers and grass have gone!
Is it beautiful now?
What has happened there?
Look! There are several chemical factories pouring waste water into the stream.
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《Pollution has caused too many problems》PPT，第二部分内容：Listen again and complete the sentences.
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.
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《Pollution has caused too many problems》PPT，第三部分内容：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
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.
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《Pollution has caused too many problems》PPT，第四部分内容：summary
We learn:
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…
We can:
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.
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《Pollution has caused too many problems》PPT，第五部分内容：Homework
1. Read 1a.
2. Write a passage according to Part 4.
3. Finish Section A in your workbook.
4. Preview Section B.
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