Topic 1 Pollution has causes too many problems.Section A课件（24张PPT）

课件24张PPT。
Unit 2 Saving the EarthTopic 1 Pollution has caused too many problems.Section A蜜蜂
蝴蝶;蝶泳
肮脏,杂乱;困境
羞耻,羞愧
几个,数个
倒出;倾泻;不断流出
废弃的,丢弃的,无用的;浪费
村民,乡下人
摧毁,破灭
砍倒
污染
天啊;啊呀bee
butterfly
mess
shame
several
pour
waste
villager
destroy
cut down
pollute
goodnessCheck the new wordsWatch the flash Environmental Pollution环境污染这样改变你的生活 It tells us that in our daily life, there are all kinds of pollution, such as:


water pollution ,
air pollution ,
litter and
noise pollution. Pollution has caused too many problems, so we must
save the earth. /
protect our environment 3 A. Listen to the sentences and number the pictures.532146People ____ ____ ____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 dirty2 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.village/flowers and grass
villagers/destroyhill / trees
farmers/cut down1.
A: There were lots of trees
when I visited the hill last year.
B: But now the trees have gone.
A: What has happened here?
B: The farmers have cut them down.1lake/fish
factory/pollute2.
A: There were lots of fishes
when I visited the lake last year.
B: But now the fishes have gone.
A: What has happened here?
B: The factory has polluted it.2Have you ever had a picnic?Kangkang, Jane, Maria and Michael are planning a picnic for Sunday.
They will go to the West Hill.What can you see there?I can see several bees and butterflies dancing.Two years agoIs it beautiful now?
What has happened there?GuessThe flowers and grass have gone! Oh, my goodness. What a mess!Look! There are several chemical factories pouring waste water into the stream.= have disappeared.Now 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
PPNPNNPPPN1c 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 waterEverything Kangkang, Jane , Maria and Michael are _______a picnic for Sunday. They plan to go to the _____ _____. It was a _______ ______. There were lots of ________and ______. The air was ______ and the water was ______, and you could see bees and butterflies _______.
But now the flowers and grass _______ _____ .The water is _____ ______and smells _______. There are several ________ _______ pouring _______ ______ into the stream. Everything_____ _______.Try to retell 1aplanningWest Hillbeautiful placeflowersgrassfleshcleandancinghavegoneso dirtyterriblechemical factorieswaste waterhas changedRead 1a together.Read 1a in roles.(Kangkang, Jane , Maria and Michael are planning a picnic for Sunday.)
J&Maria: Kangkang, where …?
K: What about…? I went… It was…There were…
The air…, and you…
M: Sounds…!Let’s…
(On Sunday, they come to the West Hill.)
K: Oh, what ...! The flowers…!The water…It
smells…What has…?
Maria: What…! Look, there are…
K: Everything…
M: Do you…
J: Of…Practice in groups, then act it out.There be sb./sth. doing sth
某地有某人或某物正在做某事 Key pointsThere 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。 eg: 瞧！有个小男孩正在街上哭。
Look! There is a little boy crying in the street.
pour… into… 把...倒入...
eg:请把水倒入瓶子里。
Please pour the water into the bottle.ExercisesLook! 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根据汉语意思完成句子。
1.大风过后，所有的花消失了。
After the strong wind, all the flowers ____ ____.
2.公园里有个女孩正在放风筝。
_____ ____a girl ____ ____ ______in the park.
3.请不要把垃圾倒入河里。
Don’t _____ litter ______the rivers.
4.看，一个男孩正在砍树。让我们去阻止他。
Look! A boy is ______ _______ the tree.
Let’s go and stop it.
have goneThere is flying a kitepour intocutting downExercisesSummary
1. bee，butterfly, mess, shame, several, pour,
waste, villager, destroy, pollute, goodness
2. cut down 砍倒
pour… into… 把...倒入...
3. There be sb./sth. doing sth
某地有某人或某物正在做某事
What a mess! 真是一团糟啊！
What a shame! 多可惜啊！
Oh, my goodness! 噢，天哪！
4. Know the differences between Simple Past
and Present perfect.
区别使用一般过去时和现在完成时
It was a beautiful place.
Everything has changed. Write a passage about pollution in a
place you are familiar with. (Part 4)
2. Finish Section A in your workbook.HomeworkThank you!