Unit 8 We're trying to save the earth! 复习课件17张

(共17张PPT)
Unit8
We’re trying to save the earth!(II)
Topic: talk about _________
pollution
Noise pollution
Air pollution
Water pollution
language points
1.The river ____ __ __ ___(曾经很干净）.
2.I _______(stop) using them last year.
一般过去时
used to be clean
stopped
1. The river was dirty, because people
are ________ (throw) litter into the river.
Factories are ______(put) waste into the
river.
现在进行时
throwing
putting
1.So far ,no scientific studies ____ _____
(show) that sharks are good for health.
2.He ____already ____(try) this way to solve the problem, but it didn’t work .
3.We _________(live) here since my little sister was born.
have shown
has tried
have lived
现在完成时
1. We should ______ ___ (给..写信）the government and _____（要求） them to close down the factories. Everyone should ___________（打扫干净）the river.
write to
ask
clean up
情态动词
1.The air ____ badly _______(pollute) because there are more cars on the road these days.
2.The windows and doors come from old buildings around her town that _____ _____ ______. (pull down)
is polluted
were
pulled down
被动语态
Point 1: 时态大杂烩
1-_____ you ever ____(be) to the US
-Yes, twice.
2.-May I speak to John
-Sorry, he _________(go) to New York. He ______(be) back in two days.
Have been
has gone
will be
3-Did you go to Jack’s birthday party
-No.I ___________________(not invite)
4 It’s 5 o’clock now. The Browns
_____________ (have) dinner.
wasn’t invited
are having
5.-Excuse me.Is this right way to the Summer Palace
-Sorry, I’m not sure. But it ____ be .
A might B mustn’t C can’t D must
A
Point 2: pollute
There is a lot of ________. The
river has been _______ by waste
products.
pollution
polluted
Point 3: cost /pay/spend/take
I spent 30 minutes on doing homework.
How much did you pay for the coat
He takes him one hour to walk to school.
in
√
It
（14,十堰中考）-Smart phones are more and more popular now.
-SO they are. But they still ___ too much.
A pay B cost C take D spend
B
A one-way ticket_____ $40, and
you can _____ another $20 for
a a round trip.
A costs ,pay B. cost , spend
C. pay, spend D. spends, pay
A
Point 4: no longer=not ..any longer
no more =not ..any more(不再）
他不再在这儿居住了。（4）
He no longer lives here.
He doesn’t live here any longer.
He no more lives here.
He doesn’t live here any more.
Is there any ______ of fire
It’s ________ to play with fire.
Many animals are ____ _____.
And they are _______ by pollution.
danger n. 不可数 dangerous adj.
endangered adj. 濒危的
in danger 在危险中
danger
dangerous
in danger
endangered
Point 5
Summary
protecting
pollution
problems
solutions
grammar