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(共29张PPT)
Unit 13 We're trying to save the earth!
Section A 1a-2d
What leaves the deepest impression(印象)on you
Why has our earth changed a lot
What kind of pollution do you know
Water pollution
What causes water pollution
What will happen if water is polluted
put waste into the river
throw litter into the river
shipping
What will happen if water is polluted
Humans will get sick.
Kill or do harm to animals.
Air pollution
What causes air pollution
What will happen if the air is polluted
burn coal
cars on the road/
vehicle emissions
Land pollution
What causes land pollution
landfill 填埋场
What will happen if our land is polluted
Noise
pollution
What causes noise pollution
What will happen if there is too much noise
It's really important and extremely urgent to protect our earth!
What should we do to reduce(减少）the pollution
water pollution
land pollution
air pollution
noise pollution
Problems: 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.
Let’s listen and fill in the blanks.
1b
really dirty
adj.
n.
rubbish
n.
fish
n.
litter
n.
waste
n.
government
v.
close down
v.
clean up
Reasons:
Solutions:
Key phrases重点短语
1.扔垃圾到河里面
2.向河里排放废弃物
3.关闭工厂
4.清理河道
5.塑料袋
6.一次性筷子
7.塑料碗
7.公共公园
8.乱扔垃圾
9.烧煤
10.把......变成......
11.全是垃圾
12.为......出力/扮演......角色
throw litter into the river
put waste into the river
close down factories
clean up the river
plastic bags
wooden chopsticks
plastic bowls
public parks
litter in/throw away rubbish
burn coal
turn ...into...
be full of rubbish
play a part/role in doing sth
Listen and circle the pollutions they talk about.
A. land pollution B. air pollution C. noise pollution D. water pollution
1. 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.
What things are people throwing away every day
cars
pollute
are throwing
public places
What's the relationship between speakers
A. teachers and students B. classmates C. interviewee and interviewer
What are they going to talk about next
Role-play the conversation.
2d
advantage n.优点；有利条件
（反）disadvantage 缺点
减少，砍倒
How many solutions do they provide What are they
make a difference to对...有作用或影响
外卖食物
All the small things can add up and become bigs things that would improve the environment!
Let’s talk.
How can we save the earth
Alan
waste pollution
We should ______________
William
throw litter into the bin
Let’s talk.
How can we save the earth
Alan
We should _________________.
William
waste pollution
take our own bags when shopping
Let’s talk.
How can we save the earth
Alan
air pollution
We could _______________
William
stop riding in cars
Let’s talk.
How can we save the earth
Alan
We can____________________
William
turn off the lights when we leave a room
Let’s talk.
How can we save the earth
Alan
We may ____________
______________________.
William
recycle books and paper
Let’s talk.
How can we save the earth
Alan
We should ____________
_____________________
____________________.
William
turn off the shower while we are washing our hair
waste pollution
save electricity
save water
air
pollution
recycle books and paper
Saving the earth begins with small things!
From the easiest(1) to the most difficult(5).
reusable bags
1. Judy is a six-year-old girl, what things she can do to save the earth
A. She should drive the car to school.
B.She should turn off the lights when she leaves a room.
C.She should close down some factories to reduce water pollution.
2. Nancy is a mother with short hair.what things she can do to save the earth
A. She can use reusable bags while shopping.
B. She would never turn off the shower while washing her hair.
C.She can recycle paper and books for her kids.
Fill in the blanks with the appropriate modal verbs from the box.
4b
can
would
could
have to
should
must
may/might
People __________ think that big things ____________ be done to save the earth. Many forget that saving the earth begins with small things. For example, you ________ save electricity by turning off the lights when you leave a room. You ______ also use reusable bags instead of plastic bags.I think it’s a great idea that you now _______ pay for plastic bags in some stores. And instead of driving to school or work, you ___________ ride your bike or walk. If it’s far, you _____take the bus. All these small things ____add up and become big things that __________ improve the environment. Let’s take action now!
may/might
must/have to/should
can/could/should
can/could/should
have to
can/could/should
can/could
can/could
would/can/could
根据书本内容，完成环境污染信息的收集表格
全品
Let’s report.
Next, let’s welcome ...and ..., the environmentalists
from Prime School, to give us more points of views.
Pollution Causes Result Solution
Water pollution factories put waste water and litter into the river... Many animals are in great danger... As a student,...
Write to the government to...
Air pollution
...
We want to talk about air pollution.
Air is polluted by cars on the road......
Everyone should play a part in environmental protection. We should...

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