Unit 2 Saving the earth. > Topic 1 Pollution has causes too many problems. Section A教学课件

课件21张PPT。Unit 2 Saving the Earth
Topic 1 Pollution has caused too many problems.
Section AHave you ever had a picnic?Yes,I have.野炊No , I haven’t.I will have a picnic this Sunday,do you want to go with me?Where shall we go? Do you want to go this place? Why? Kangkang, Jane, Maria and Michael are planning a picnic for Sunday.1、Where will they go ?Listen to the first paragraph in 1a,then anwer the answer.2、When did Kangkang go there?They will go to the West Hill.He went there two years ago.See sbsth. do sth.表示看到了做的整个动作，强调结果.
See sb.sth. Doing sth.表示看到正在做某事，强调过程What can you see there?We can see bees and butterflies dancing.beebutterflyIt’s a picture of two years ago in the West Hill.The flowers and grass have gone! Oh, What a mess!Look! There are several chemical factories pouring waste water into the stream.Is it beautiful now?
What has happened there?P27 1a mp3真是一团槽！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e.g. There are some people waiting for the bus at the bus stop. 倒出；倾泻
pour… into… 把……倒入……
e.g. Pour red wine into the glass.1b Listen to 1a and mark the words with P (Past) or N (Now).
____ beautiful ____ butterflies ____ dirty
____ grass ____ terrible ____ factory
____ bees ____ fresh ____ clean
____waste waterPPNPNNPPPN1a Listen, look and say.1c Read 1a and complete the sentences in the table. Then retell 1a to your partner.beautiful placelots of flowers and grassfresh and the water was cleanbees and butterflies dancingThe flowers and grassso dirtyterriblechemical factorieswaste waterEverything2 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/
pollutehill/ trees
farmers/cut downvillage/flowers and grass
villagers/destroy 3 A. Listen to the sentences and number the pictures.5321461. 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 downhave gone have
disappearedhave beendon’t live happilywas cleanis too dirtyExercises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
CDAExercises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.readinghave gonehas changedto eathave beenhadsummaryWe 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 again and recite the new words.
2. Finish 2.Thank you for listening.