内容正文：
Unit 8 A green world
Comic strip&Welcome to the unit
Do we live in a green world?
weather
trees
animals
air
water
waste and litter
The earth is seriously polluted.
…
Has the government realized the serious problems?
They have set up some organizations to protect the environment.
22nd, April
5th, June
12th, March
Tree - planting Day
They have also set up some festivals to call on people to protect the environment .
How to live a green life?
As students, we can protect the environment by living a green life.
ride bicycles
We can reduce air pollution by …
to make sth. smaller（减少、降低）
bus
coach
train
underground
It’s wise for people to…
choose public transport
full of wisdom（智慧）
turn off the lights when we leave a room
We can … by ...
save energy
关上（开关）
take a shower
take shorter showers
reuse water
We can save water by…
use sth. again
We can the water to flush(冲洗) the toilet.
Don’t leave the tap r_________ when brushing teeth.
reuse
We can （关上水龙头）when washing hands with soap.
turn off the tap
unning
We can protect the environment by…
recycle some waste
glass/paper bag/carton…
(v.) 回收: collect sth. used so that it can be used again
food/battery/medicine…
a. We can reduce air pollution by riding bicycles.
b. We can save water by taking shorter showers.
c. We can save energy by turning off the lights when we leave a room.
d. We can protect the environment by recycling waste.
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2
3
4
Mr. Wu is asking the students how to live a green life.
Listen, read and answer.
1.How does Kitty go to school now?
2.What does Millie think of public transport?
3.What does Daniel think we can do to save water?
4.What does Sandy tell us to do when we leave a room?
She takes the underground to school now.
It is wise for people to choose public transport.
We can save water by taking shorter showers.
We should remember to turn off the lights.
A: What should we do to live a green life?
B:We can ... by ...
C: I agree. It’s wise for …