(共21张PPT)
Lead-in
In the past, we lived here…
Now, we live here…
What happened
cars
littering
rubbish
air pollution
air pollution
water pollution
un. drop litter
v. Don’t litter everywhere.
Research
build houses
air pollution
noise pollution
factories
air pollution
noise pollution
water pollution
1a
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
Interaction
1b
Listen and complete the sentences.
What was the problem
The river was _____________. Even the bottom of the river was full of _________. There were no more ______ for fishermen to catch.
What caused the problem
People are throwing _______ into the river. Factories are putting ______ into the river.
How should the problem be solved
We should write to the ____________ and ask them to ___________ the factories. Everyone should help to __________ the river.
really dirty
rubbish
fish
litter
waste
government
close down
clean up
1c
Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.
Mark: The river was dirty. Even the bottom of the
river was full of rubbish.
Tony: But it used to be so clean!
Mark: Yes, but people are throwing litter into the
river.
Tony: Everyone in this town should play a part in
cleaning it up!
=was filled with
=play a role in doing
1. Here are some words related to different kinds of pollution.
be related to 与…有关
你的许多错误与粗心有关。
Most of your mistakes are related to your carelessness.
Research
2. Even the bottom of the river was full of rubbish.
Yes, but people are throwing litter into the river.
litter和rubbish都可指“垃圾”，用作不可数名词。
litter还可以用作动词，表示“丢垃圾”。
街上到处都是垃圾。
The streets were littered with rubbish.
He has littered something on the floor. （改为否定句）
He ______ ______ ______ on the floor.
hasn’t
littered
anything
2a
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
land pollution B. air pollution
C. noise pollution D. water pollution
Interaction
2b
Listen again and complete the sentences.
The air is badly polluted because there are ___________ on the road these days.
2. Factories that burn coal also ________ the air with a lot of black smoke.
3. There is also too much rubbish and waste. People
_________________ things every day.
4. People are also littering in ____________ like parks.
This is turning beautiful places into ugly ones.
more cars
pollute
are throwing away
public places
too much+un.
too many+pl.
much too+adj./adv.
Use the information in 2a and 2b to role-play conversations between Jason and Susan.
2c
Jason: The air has become really polluted around
here. I’m getting very worried.
Susan: Yes, I used to be able to see stars in the
sky.
Jason: The problem is that …
Read 2d and complete the chart.
Pollution Ways to solve the problem
air pollution
waste pollution
take the bus, subway or ride a bike instead of driving
bring a bag to go shopping
never take wooden chopsticks or plastic forks when buying takeaway food
throw rubbish in the bins
2d
It’s good for health and it doesn’t cost anything!
spend
(spent) sb. spend time/money on sth. 在某物上花钱/时间
sb. spend time/money (in) doing sth. 花时间/钱做某事
sb. spend time with sb. 花时间与某人在一起
cost
(cost) sth. cost sb. money 某物花了某人多少钱
pay
(paid) sb. pay money for sth. 付钱买某物
take
(took) It takes sb. time to do sth. 做某事花费某人多长时间
Research
The new bike _____ me 200 yuan.
It took me 2 hours ________ (get) to school.
I only _____ 20 yuan for this watch on a big sale.
My parents _____ plenty of money on my education.
After _______ 1.5 hours __________ my homework, I ________ some time _______________________ my parents for a long talk.
cost
to get
paid
spent
spending
on/(in) doing
spent/took
with/staying with/to stay with
… our actions can make a difference and lead to a better future!
make a difference 起作用，有影响
make a big difference 有重大影响
make no difference 没有关系，没有影响
身为教师你们必须坚信你们能够影响学生的一生。
As teachers, you must believe that you can _______________ to the lives of your students.
你做这项工作必须十分严谨，因为一点小的失误都会造成很大差异。
You have to be very exact in this job, because a small mistake can ____________________.
make a difference
make a big difference
解决问题
减少，缩减，砍倒
……的优点
木筷子
外卖
扔垃圾
保持……（干净）
公共场合
起作用，有影响
引领，通往
solve the problems
cut down
advantages of …
wooden chopsticks
takeaway food
throw rubbish
keep … (clean)/keep + adj.
public places
make a difference
lead to
Puzzling phrases
Interaction
What else should we do to save the earth
Turn off the lights when you leave a room.
Stop riding in the car.
Stop using paper towels or napkins.
… …
turn on 打开（电器） turn down 调低（音量）；
turn up 调高（音量） 拒绝
Extension
Talk about the pollution and how to save the earth.
Phrases
解决问题
减少，缩减，砍倒
……的优点
木筷子
外卖
扔垃圾
保持……（干净）
公共场合
起作用，有影响
引领，通往
solve the problems
cut down
advantages of …
wooden chopsticks
takeaway food
throw rubbish
keep … (clean)/keep + adj.
public places
make a difference
lead to
Workbook PP. 186~198
EW Section A (1a~2d)
