仁爱科普版九上英语Topic 1 Pollution has causes too many problems. Section A 课件(共28张PPT)

(共28张PPT)
Section A
Unit 2 Saving the Earth
Topic 1 Pollution has caused too many problems.
1. Express exclamation(表达惊叹):
What a mess! What a shame! Oh, my goodness!
2. Know the differences between Simple Past and Present perfect(了解一般过去时与现在完成时的区别):
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 … doing sth. pour… into…
3. Some sentences:
… have gone. There be… doing sth..
A: Where have you traveled
B: I have traveled to ...
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 could you see there
We could see bees and butterflies dancing.
bee
butterfly
Was the West Hill beautiful
see…doing sth.
a beautiful
place with
beautiful flowers
many butterflies and bees
green grass
blue sky
clean water
糟糕透了！
The 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
P27 1a mp3
What has happened there
哦，天啊！
Is it beautiful now
waste water
waste paper
Waste water. 浪费水。
Don’t waste time. 不要浪费时间。
waste
adj.
V.
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 water
P
P
N
P
N
N
P
P
P
N
1c Read 1a and complete the sentences in the table.
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
What a shame!
= What a pity!.真遗憾/真可惜！
There are several chemical
factories pouring waste water
into the stream.
There be…doing sth…
……有……在做某事
There are some birds singing in the tree.
有几家化工厂正在往小溪里排放废水。
e.g. 树上有几只鸟在唱歌。
In the past, the West Hill _____(be) beautiful. Kangkang _____ (go) there two years ago.
The flowers and grass _________ (go).
Everything ____________ (change).
was
went
have gone
has changed
一般过去时
强调过去发生的动作
现在完成时 强调过去发生的动作对现在造成的影响或结果
绝对不能与表示过去的时间状语连用
常与表示过去的时间状语连用
一般过去时
强调过去发生的动作
e.g. 我上周天看了这部电影。
e.g. 我已经看过这部电影了。
现在完成时 强调过去发生的动作对现在造成的影响或结果
I _______(watch)the movie last Sunday.
I____________(watch) the movie.
watched
have watched
2 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.
village/flowers and grass
villagers/destroy
A: There were lots of …… when I
visited the …… last year.
B: But now the flowers and grass have
gone.
A: What has happened here
B: The villagers have destroyed them.
B: But now the …… have gone.
A: What has happened here
B: The …… have …… them.
2 Work in pairs. Look at the pictures and make up conversations similar to the example with your partner.
lake/fish
factory/
pollute
hill/ trees farmers/ cut down
A: There were lots of …… when I
visited the …… last year.
B: But now the …… have gone.
A: What has happened here
B: The …… have …… them.
Example:
hill / trees
farmers /
cut down
A: There were lots of …… when I
visited the …… last year.
B: But now the …… have gone.
A: What has happened here
B: The …… have … them.
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.
lake / fish
factory /
pollute
A: There were lots of …… when I
visited the …… last year.
B: But now the …… have gone.
A: What has happened here
B: The …… have …… them.
A: There were lots of fish when I
visited the lake last year.
B: But now the fish have died.
A: What has happened here
B: The factory has polluted it.
Ms. Zhou’s hometown
Five years ago
Nowadays
4. Work in groups and talk about pollution in a place you are familiar with.
Five years ago, my hometown____________. The sky ________, the water _________. And there were lots of ___________ and _______ ______. However, nowadays, everything ____________. People _______________ too many trees. The flowers and grass ______ ______. What a ______________! I think the government should take some measures to stop the factories pouring ___________ into the river. If everyone tries his best, our world will be _________________________.
has changed
was beautiful
was blue
was clean
green trees
beautiful
flowers
have cut down
have
gone
Shame/ pity
waste water
more and more beautiful
Example
My Hometown
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(表达惊叹):
What a mess! What a shame! Oh, my goodness!
2. Know the differences between Simple Past and Present perfect(了解一般过去时与现在完成时的区别).
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 … doing sth. pour…into…
3. Some sentences:
…have gone. There be…doing sth..
看见某人在做某事
废水
把 …倒进…
消失
砍倒
哦, 天啊！
太糟糕了！
真遗憾啊！
有某人/某物在做某事
see sb. doing sth.
waste water
pour … into …
have/has gone
cut down
Oh, my goodness!
What a mess!
What a shame!
There be…doing sth.
( ) 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
C
D
A
There be…doing sth.
真遗憾/真可惜！
动词
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. Sally ____________ (buy) the bike. She _________ (buy) it two weeks ago.
5. — Where have they been
— They __________ (be) to the Great Wall. They ______ (have) a good time there the day before yesterday.
reading
have gone
has changed
has bought
have been
had
bought
Congratulations to the winners!
W e must try our best to save the earth!