(共23张PPT)
Unit 2 Saving the Earth
Topic 1 Pollution has caused too many problems.
Section A
自学检测 :
1.蜜蜂 ______ 2.羞耻 ______
3.几个 ______ 4.废弃的 ______
5.污染 ___ __ 6.倒出 _______
7.摧毁 ____ __ 8.肮脏 _ ____
bee
shame
several
waste
pollute
pour
destroy
mess
A: Where have you been/traveled
B: I have been/traveled to ...
Where do you want to travel
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 can you see there
We can see bees and butterflies dancing.
bee
butterfly
Is the West Hill beautiful
a place with
beautiful flowers
many hills
green trees
What a shame/mess!
The flowers and grass have gone!
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.
Is it beautiful now
What has happened there
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.
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.
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
(Kangkang, Jane, Michael are planning a picnic for Sunday.)
Jane and Maria: Kangkang, where shall we go
Kangkang: What about the West Hill I went there two years ago. It was a beautiful place. There were lots of flowers and grass. The air was fresh and the water was clean, and you could see bees and butterflies dancing.
Michael: Sounds great! Let’s go there.
(On Sunday, they come to the West Hill.)
Kangkang: Oh, what a mess! The flowers and grass have gone! The water is so dirty. It smells terrible. What has happened here
Maria: What a shame! Look, there are some several factories pouring waste water into the stream.
Kangkang: Everything has changed.
Michael: Do you still want to have a picnic here
Jane: Of course not.
一般过去时
1. see sb. doing sth.看见某人正在做某事
see sb. do sth看见某人做过某事
2. what a mess=what a shame! 真是一团糟。
3. have gone消失了
4. It smells terrible.闻起来很糟糕。
5. What has happened here 这里已经发生了什么?
6. pour……into 把……倒入……里
7. There be sb./sth. doing sth.
有某物/人正在做某事
8. Everything has changed. 一切都变了。
自学检测2
1. 看见某人正在做 _______________
2. 某地有某人或某物正在做某事 ___ _ ___
3. 把……倒入______ __
4.闻起来很糟糕 _________ __
5.这里已发生了什么?________________
6. 一切都已经变化__________________
see sb.doing sth.
There be sb./sth. doing sth.
pour… into…
It smells terrible.
What has happened here
Everything has changed.
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 _______________________.
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
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
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
C
D
A
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.
reading
have gone
has changed
to eat
have been
had
Know the differences between Simple Past
and Present perfect.(一般过去时与现在完成时态的区别)
It was a beautiful place.
Everything has changed.
1. Some words:
bee, butterfly, mess, shame, several, pour, waste, destroy, pollute, goodness
2. Some phrases and sentences:
see sb. doing sth. pour…into..
There are … doing… What a shame!
What has happened
Thank you.