Unit 13 We're trying to save the earth!Section A（1a-2c）(共43张PPT，内嵌音视频)2023-2024学年九年级英语全册同步精品课堂（人教版）

(共43张PPT)
Unit 13
We're trying to save the earth!
Section A 1a--2c
Free talk What’s the difference
used to... but now
What happened in the picture
The earth is polluted.
Lead in
What is pollution
The world’s problem
What kind of pollution are they
air pollution
water pollution
desertification
Natural disasters
Endangered animal
Pollution
The earth is polluted.
We're harming our planet in so many ways.
noise pollution
water pollution
air pollution
loud sound
car
plane
...
What caused these problems
factory
littering
ship
car
ship
factories
plane
Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.
1a
loud music cars rubbish planes littering ships factories smoking building houses mobile phones
air pollution
litter v. 乱扔 n. 垃圾；废弃物
cars
factories
smoking
building houses
(burning, power plants)
noise pollution
water pollution
loud music
planes
building houses
mobile phones
(machines, crowds)
rubbish
littering
ships
factories
(sewage, pesticides)
Lead-in: watch a video
What kind of pollution is it
Water pollution.
Problems: What was the problem The river was ___________.Even the bottom([ b t m]) of the river was full of _________. There were no more _____ for fishermen ([ f m n]) to catch.
Reasons: What caused the problem People are throwing ____________into the river.
Factories are putting ______ into the river.
Things to Help: 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
策略：听前标注关键词，判断空词词性，预测听力内容。
really dirty
adj./pron.
n.
rubbish
n.
fish
n.
litter [ l t (r)]
n.
waste
n.
government
v.
close down
v.
clean up
While-listening
:listen and complete the sentences in 1b.
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
causes
solution
problem
Everyone in this town should play a part in cleaning it up !
Listen again and answer the following questions.
What does Tony want to do later this afternoon
He wants to ______________________ in the river later this afternoon.
go swimming with Mark
2. How was the river in the past
It used to be so ______________________. It has been the ______________________ in this town.
clean
nicest river
used to do sth.
“过去常常……” 表示过去习惯性但如今已不存在的动作
play a part in doing sth.
“参与做某事; 在做某事上起作用”
请跟读对话。
Let’s know more about water pollution.
What causes the water pollution
People throw rubbish into the river.
Factories put the waste into the river.
What can we do to solve it
We can help to clean the river.
The government should close down the factories.
The government should make serious laws about water protection.
We should save water.
Predcit what kinds of pollution would talk about.
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.
air
pollution
waste
pollution
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
A.land pollution
B. air pollution
C. noise pollution
D. water pollution
2a
Let’s listen and choose the right answers.
2a
2b
策略：听前关注题干中的关键词，判断其逻辑关系，预测听力内容。
1. Which pollution is NOT mentioned
A. Land pollution. B. Air pollution. C. Noise pollution.
2. Why is the air badly polluted Because_______.
A. there were more cars on the road these days
B. factories that burned coal[k l] stop polluting the air with a lot of black smoke
C. people can hardly ever see blue skies and stars anymore
3. How are people turning beautiful places into ugly[ ɡli] ones People are _______
A. throwing away things like wooden[ w dn] chopsticks, plastic[ pl st k] bowls and plastic bags.
B. littering in public, like homes.
C. collecting too much rubbish and waste.
Listen again and complete the sentences.
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.
more cars
pollute
are throwing away
public places
adj. 丑陋的
Work in groups. Each group choose a topic in 2a. Say the words or phrases related to the word or phrase that the previous (前一个的) person said.
e.g. Land pollution rubbish
dirty throw dustbin clean up trees cut down
farm burn …
Post-listening: imagine that you are an ambassaor of enviromental protection in your community. Please give a speech on an enviromental problem and its causes and solutions.
Post-listening: give a report
There are many serious problem about our enviroment.
I think one of them is that..., I’ve noticed that... (problem)
That is because people..., some factories...(cause)
To solve this probelm, I think...(solution)
I believe that...(wish)
Let’s know more about air pollution.
Let’s know more about soil/land pollution.
What causes the air pollution
What can we do to solve it
There are more and more cars on the road. They give off the waste gas into the air.
Factories that burn coal also pollute the air with a lot of black smoke.
We can walk or ride the bike, take the bus or subway instead of driving the car.
We can plant more trees.
The government should close down the factories.
What causes the land/soil pollution
There is too much rubbish and waste. People are throwing away things everyday
People use too many plastic bags.
What can we do to solve it
We should throw the rubbish into the bins.
We can help to clean up the streets or parks.
We'd better not use wooden chopsticks or plastic bowls when we buy takeaway food.
We can bring our own bag when we go shopping.
Take actions to protect environment.
Let’s report.
Work in groups and describe the problems of land pollution and air pollution.
Discussion: What can we do to save the earth in our lives
Groupwork
环保标语征集
请你针对各种环保现象设计至少三条以上的环保标语。标语提示句型可参考：
Don't...
We should...
We can't / shouldn't ..., or...
If we..., our world will...
Throw rubbish in the bins
（垃圾箱）
Take the bus or subway
instead of driving cars
Bring a cloth bag to go shopping
instead of plastic bags
购物时带上布袋
Turn off the shower when you finish washing
Turn off the lights when you
leave the room
Don't use napkins (餐巾纸）
Plant more trees
离开房间的时候记得关灯
save water
no smoking
protect animals
Don’t waste food.
recycle books and paper
=use again 回收利用
Help save the earth
As a student, it's our duty to think of some ways to save our earth in future.
给……写信
河底
往河里扔垃圾
把……打扫干净
土地 / 空气 / 噪音 / 水污染
把……变成……
减少空气污染
write to ...
the bottom of the river
throw litter into the river
clean up ...
land / air / noise / water pollution
turn ... into ...
cut down air pollution
代替
对……有好处
外卖食品
保持公共场所干净美观
影响；有作用
带来；导致
instead of
be good for ...
takeaway food
keep public places clean and beautiful
make a difference
lead to
I. 根据句意，从方框中选择恰当的单词填空，有的需要变换形式。
coal, fisherman, plastic, bottom, advantage, wood, cost, ugly, litter
1. Look! A boy is lying at the ______________ of the stairs.
2. The old man likes nature. He likes living in his small _______________ house on the mountain.
bottom
wooden / wood
coal, fisherman, plastic, bottom, advantage, wood, cost, ugly, litter
3. Most air pollution is caused by the burning of fuels (燃料) like ______________, gas and oil.
4. After your picnic, remember to pick up all your ______________.
5. The new mobile phone ______________ Sara 3,600 yuan last week.
6. Most of the ______________ in the village stayed at home today because of the bad weather.
coal
litter
cost
fishermen
coal, fisherman, plastic, bottom, advantage, wood, cost, ugly, litter
7. Although the man is ______________, he has a kind heart.
8. To protect the environment, supermarkets don’t provide free _______________ bags to shoppers.
9. Riding bicycles has so many _________________, so bicycles are popular with people.
ugly
plastic
advantages
Ⅱ. 根据汉语意思完成英语句子，每空一词。
1. 房间里挤满了人。发生什么事了？
The room was ___________ ___________ people. What happened
2. 你应该交个笔友，用英语给他写信。
You should make a pen friend and ___________ ___________ him in English.
3. 转学对我的一生有影响。
Transforming from one school to another ___________ ___________ ___________ to my life.
full of
write
to
made
a difference
4. 为了盖房子马路边的许多大树已经被砍倒了。
Many big trees along the road have been ___________ ___________ for building houses.
5. 勇气对说好英语起着很重要的作用。
Courage ___________ ___________ ___________ ___________ ___________ speaking English well.
cut
down
plays an important
part in
思考校园中存在的不环保现象有哪些。用英文写一封信给学校的校长，信内列出校园不环保的现象及相应的解决建议。100字左右。