Unit 13 We’re trying to save the earth! Section A(1a-2d)课件(共23张PPT，内嵌音频) 人教版英语九年级全一册

(共23张PPT)
Section A (1a–2d)
Section A (1a–2d)
UNIT 13
We’re trying to save the earth!
学科素养
1. 语言能力：
学习环境问题和环境保护所涉及到的重要词汇和短语： litter, bottom, fisherman, environmental protection, coal, advantage…等以及目标句型 We’re trying to save the earth. The river used to be so clean.
2. 文化意识：
能够通过理解，分析，比较，批判，创造等提高思维个性化特征。能够意识到环境问题的严重性，引导学生关注环境问题，提高环境保护的意识
3. 思维品质：
充分认识环境污染的现状,了解环境问题的基本做法，提升学生文明素养以及社会责任感。
4. 学习能力：
能够通过完成听力任务以及口语对话活动，引导学生使用高效的听力和口语学习策略，培养学生在小组中与人合作，共同解决问题的能力。小组合作。
立德树人
保护环境，人人有责。
Lead-in
Look and say.
Why has the earth changed a lot
Maybe because of the pollution.
Brainstorm
03
01
different types of pollution
air pollution
noise pollution
water pollution
02
Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.
loud music cars rubbish planes littering ships factories smoking building houses mobile phones
litter v. 乱扔 n. 垃圾；废弃物
noise pollution
air pollution
loud music
planes
building houses
mobile phones
(machines, crowds)
cars
factories
smoking
building houses
(burning, power plants)
rubbish
littering
ships
factories
(sewage, pesticides)
1a
water pollution
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.
Before listening, go through the whole sentences and predict the forms of the words.
形容词
名词
名词
名词
名词
名词
动词
动词
1b
Prediction.
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
1b
But it used to be so clean!
The river was dirty. Even the bottom of the river was full of rubbish.
Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.
used to do sth. “过去常常……” 表示过去习惯性的动作但如今已不存在
1c
Yes, but people are littering in the river.
.
Everyone in this town should play a part in cleaning it up!
Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.
play a part in doing sth. “参与做某事; 在做某事上起作用”
1c
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
2a
A. land pollution
C. noise pollution
B. air pollution
D. water pollution
2b
Listen again and complete the sentences.
The air is badly polluted because there are _______________ on the road these days.
Factories that burn coal also ____________ the air with a lot of black smoke.
There is also too much rubbish and waste. People _________________ things every day.
People are also littering in ____________ like parks. This is turning beautiful places into ugly ones.
more cars
pollute
are throwing away
public places
Listen for the third time and complete the dialogue.
2b
Interviewer: Today we're talking to Jason and Susan about
environmental problems. Jason and Susan, can you
tell us about some of the problems you've seen
Jason: I think one problem is that . I ________________ .
hardly ever seen blue skies anymore.
Susan: Yes, and I used to see the stars clearly.
Interviewer: What do you think has caused this problem
Susan: Well, there are more ________________ these days.
Jason: And factories that burn coal also pollute the air with a lot
of black smoke.
the air is badly polluted
cars on the road
Listen for the third time and complete the dialogue
2b
Interviewer: What other problems do you see
Susan: I guess there's ________________________ in the streets.
Jason: Yes! Every day people are throwing away things like
______________, plastic bowls and plastic bags.
Susan: They're also littering in public places, for example, during
picnics in parks. This is __________________.
Interviewer: You're right. These are serious problems for our
environment. Next, let's talk about the things we can do to
help.
too much rubbish and waste
wooden chopsticks
turning beautiful places into ugly ones
2c
The air has become really polluted around here. I’m getting worried.
Yes, I used to be able to see stars in the sky.
Use the information in 2a and 2b to role-play conversations between Jason and Susan.
2c
The water has become really polluted around here. I’m getting worried.
Yes, I used to be able to see the clean water here and there.
Make conversations using the information in 2b.
What can we do to cut down the pollution
Lead in
2d
Read the conversation and complete the mind map.
To cut down_____________
What about _____________
remember to ___________ in the bins and keep public places ____________________ for everyone.
We should _______________or _____instead of __________ or riding.
Simple like ____________
and never take ____________or__________
Ideas for ______________________
throw rubbish
driving
bringing a bag to shop
wooden chopsticks
plastic forks
take the bus
subway
clean and beautifull
solving the
problems
Our action can ________________and lead to a better future.
make a difference
waste pollution
air pollution
Take the bus or subway.
Ride a bike.
Bring a bag to go shopping.
Never take wooden chopsticks or plastic forks.
Throw rubbish in the bins and keep public places clean.
Pair work
A: What can you do to cut down the pollution
B: I can ...
2d
Read the conversation and learn the language points.
Interviewer: Jason and Susan, what are your ideas for solving
these problems
Jason: Well, to cut down air pollution, we should take the bus or
subway instead of driving.
Susan: Yeah, or ride a bike. There are other advantages of bike
riding . It’s good for health and it doesn’t cost anything!
Interviewer: Great ideas! What about waste pollution
instead of 代替
cut down 消减
名词“优点，有利条件”，其反义词为disadvantage“缺点；不利条件”。take advantage of... 意为“利用……”。
(1)cost的主语是物，宾语是金钱，sth. cost(s) (sb.) some money指“某物花费(某人)多少钱”；
(2)spend的主语是人，宾语是时间或金钱，sb. spend(s) some time/ money on sth.指“某人花费时间/金钱在某事/物上”，sb. spend(s) some time/ money doing sth.指“某人花费时间/金钱做某事”；
(3)take常用it作形式主语，宾语是时间，it takes sb. some time to do sth.指“做某事花费某人多长时间”；
(4)pay主语是人，宾语是金钱，sb. pay(s) some money for sth.指“某人为某物付费”。
Susan: Mmm, I think simple things like bringing a bag to go
shopping can help. I started doing that a year ago.
Jason: Me, too. Also, I never take wooden chopsticks or plastic forks
when I buy takeaway food. I use the ones at home.
Susan: And remember to throw rubbish in the bins and keep public
places clean and beautiful for everyone.
Interviewer: So together, our actions can make a difference and lead
to better future!
start doing 开始做某事
wooden chopsticks or plastic forks 木制筷子或塑料叉子
keep sth. adj.使... 保持...
make a difference 有影响，起作用
lead to 导致
2d针对训练
一、根据句意填空,使句子通顺、意思完整(每空限填一词)。
1. Life is full ______ competition. We shouldn’t be afraid of it.
2. Please clean ________ the dining hall after the party.
3. Don’t lose heart! All roads lead ________ Rome.
4. I want to do something more meaningful instead__________
hanging about all day.
5. I think phubbers（低头族）are supposed to cut __________ the time they spend on the smart phones.
of
up
to
of
down
1. 每个人都应该在环保方面发挥作用。(play)
Everyone should _____________________the environmental protection.
2. 为了孩子们的发展, 应该减少他们周末的学习课程。
For children's development, their courses on weekends should _________ _________.
《平凡的世界》这部小说对我的一生产生了极大的影响。
3.The novel named The Ordinary World has_____________________________.
三、单项选择。
A paper straw ________ about 5 to 12 cents, while you ________ only about
2 cents on a plastic one.
A. spends; cost B. costs; spend C. costs; take D. takes; pay
二、根据汉语意思完成句子，每空词数不限。
play a part in
shoud be cut down
made a great difference to me
√
Summary
Period 1
Words

There were no more fish for fishermen to catch.
Everyone in this town should play a part in cleaning it up!

Every little step can make a big difference.

litter, fisherman, coal, ugly, advantage, cost, wooden, plastic, takeaway, bin
Sentence structures

Thinking quality

Phrases

play a part in, cut down, instead of, make a difference, lead to