人教版九年级全册 Unit 13 We're trying to save the earth! Section A 课件(共27张PPT)

(共27张PPT)
We're trying to save the earth!
A
The earth is polluted.
Lead-in
air pollution
The factories that
burn coal pollute
the air with a lot of
black smoke.
n. 煤炭
Factories put waste into the river.
water pollution
mobile phone pollution
litter v. 乱扔
n. 垃圾
rubbish waste
垃圾，废弃物
People should throw away litter in the bin.
n. 垃圾箱
noise pollution
There are more
cars on the road.
Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.
noise pollution
____________
____________
____________
____________
air pollution
___________
___________
___________
___________
water pollution
____________
____________
____________
____________
loud music
planes
mobile phones
factories
cars
smoking
ships
factories
littering
rubbish
building houses
building houses
loud music cars rubbish planes
littering ships factories smoking
building houses mobile phones
Role-play the conversation
The river was dirty. Even the bottom of the river was full of rubbish.
But it used to be so clean!
Yes, but people are throwing litter into the river.
Everyone in this town should play a part in cleaning it up!
Practice
Make conversations using the pollution in 1a.
The river has always been the nicest river in this town.
Yes, it used to be so clean.
What caused the problem
But I was there last weekend and the river was really dirty.
Factories are also putting waste into the river.
People are throwing litter into the river.
What should we do
Yes, everyone in this town should play a part.
We should write to the government and ask them to close down the factories.
What else can we do
Everyone should help to clean up the river.
Role-play conversations between Jason and Susan.
The air has become really polluted around here. I’m getting very worried.
Yes, I used to be able to see stars in the sky.
The problem is that…
What should we do to save the earth
stop using paper towels or napkins（餐巾，餐巾纸）
recycle books and paper
回收利用
Role- play the conversation
Jason and Susan, what are your ideas for solving these problems
Yeah, or ride a bike. There are other advantages (优点) of bike riding. It’s good for health and it doesn’t cost (花费) anything!
Well, to cut down air pollution, we should take the bus or subway instead of driving.
Great ideas! What about waste pollution
Me, too. Also, I never take wooden chopsticks or plastic (塑料) forks when I buy takeaway (外卖食品) food. I
use the ones at home.
Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago.
And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.
So together, our actions can make a difference and lead to a better future!
用动词的适当形式填空。
1. We’re trying _______ (save) the earth.
2. There used to _____ (be) clean and beautiful.
3. There are too many ____ for __________
to catch (fish).
4. It’s bad for environment to use
_________ (wood) chopsticks.
to save
be
fish
wooden
fishermen
Make a poster!
The earth is badly polluted. Please make a poster and think of what we can do.
Save the earth!
Homework
Copy the new words
and remember them.