(共49张PPT)
（人教新目标版）九年级全
Period 1 Section A 1a-2d
Unit 13
We’re trying to save the earth!
Learning objectives
Key words & phrases：
litter，bottom，fisherman，coal，ugly，advantage，cost，wooden，plastic
noise pollution，air pollution，water pollution，be full of，play a part in，turn…into，cut down air pollution
Key sentences：
1.Even the bottom of the river was full of rubbish.
2.It used to be so clean.
3.Everyone in this town should play a part in cleaning it up.
4.The air is badly polluted because there are more cars on the road these days.
5.The air has become really polluted around here.
6.We're trying to save the earth.
Key structure：
should＋do；used to＋do；have/has＋done；be＋done；be＋doing
litter
e.g. The floor was littered with papers.
地板上乱七八糟扔了许多报纸。
He was arrested for littering.
他因乱扔垃圾被拘留。
There will be fines for people who drop litter.
乱扔垃圾的人将被罚款。
v. 乱扔 n. 垃圾；废弃物
New words
fisherman
e.g. There were no more fish for fishermen to catch.
渔夫们再也抓不到鱼了。
n. 渔民；钓鱼的人
New words
coal
n. 煤；煤块
ugly
e.g. It is turning beautiful places into
ugly ones to drop litter.
乱扔垃圾正在把美丽的地方变成丑陋的地方。
adj. 丑陋的；难看的
e.g. A hot coal fell out of the fire and burnt the carpet.
一块燃烧着的煤块从火炉里掉出来把地毯烧了。
New words
advantage
e.g. There are many advantages of bike riding.
骑自行车有很多优点。
n. 优点；有利条件
cost
e.g. It's good for health and it doesn't cost anything!
它对健康有益，而且不需要任何费用！
v. 花费 n. 花费；价钱
New words
wooden
e.g. I never take wooden chopsticks or plastic forks when I buy takeaway food.
我买外卖时从不带木筷子或塑料叉子。
adj. 木制的；木头的
plastic
adj. 塑料的 n. 塑料；塑胶
takeaway
n. 外卖食物
bin
n. 垃圾箱
e.g. Throw rubbish in the bins.
把垃圾扔到垃圾桶里。
New words
Why do we need to save the earth
What’s wrong with the earth
Let’s watch a short video.
The earth is suffering from pollution.
Pollution is anything that makes the earth unhealthy and dirty.
Lead in
What kinds of pollution
do you know
Air pollution
Lead in
Water pollution
Lead in
Soil (Land) pollution
Lead in
Noise pollution
Lead in
1a
Here are some words related to different kinds of pollution.
P97
loud music cars rubbish planes
littering ships factories smoking
building houses mobile phones
Pre-listening
Write them in the box below. Then add more words.
P97
air pollution _____________ _____________ _____________ _____________
_____________
noise pollution _____________ _____________ _____________ _____________
_____________
water pollution _____________ _____________ _____________ _____________
_____________
loud music
planes, cars
building houses
mobile phones
(machines, crowds, vehicles)
cars
factories
smoking
building houses
burning, power plants(发电厂), nuclear waste disposal(核废物)
rubbish
littering
ships
factories
sewage(污水), industrial waste, pesticides(农药)
loud music cars rubbish planes
littering ships factories smoking
building houses mobile phones
Pre-listening
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.
1b
Listen and complete the sentences.
P97
really dirty
rubbish
fish
litter
waste
government
close down
clean up
What
Why
How
While-listening
Tony: Hey, Mark, maybe we could go swimming in the river later this afternoon.
Mark: I don't think I want to go, Tony.
Tony: Why not
Mark: I was there last weekend and the river was really dirty. Even the bottom of the river was full of rubbish, and there were no more fish for fishermen to catch.
Tony: No way! It used to be so clean. In fact, it has always been the nicest river in this town.
听
力
原
文
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。
Post-listening
听
力
原
文
play a part (in sth./in doing sth.)
参与做某事；在做某事上起作用
Is it possible to close down the factories
What possible solutions can you think of
Factories should work hard to find environmentally friendly ways to deal with waste.
Create laws on where and how waste should be put.
Government+factories+everyone
=unity(团结) is power.
Mark: Not anymore. I think people are throwing litter into the river. Factories are also putting waste into the river.
Tony: That's terrible! We should write to the government. They should close down the factories.
Mark: Good idea! But I think everyone in this town should help to clean up the river, too. Everyone should play a part, not just the government.
1c
Role-play the conversation.
P97
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.
Post-listening
1c
Then make your own conversations about the kinds of pollution in 1a.
P97
Useful expressions:
I (don’t ) think…
Why not
Even the…was…
That’s terrible.
It used to… But now…
We/They/Everyone should…
Post-listening
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
land pollution
air pollution
C. noise pollution
D. water pollution
2a
P98
While-listening
Listen again and complete the sentences.
more cars
pollute
are throwing away
public places
2b
P98
Try to fill in the blanks before listening again.
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.
While-listening
听
力
原
文
1
2
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 the air is badly polluted. I hardly ever see 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 cars on the road these days.
Jason: And factories that burn coal also pollute the air with a lot of black smoke.
Post-listening
听
力
原
文
3
4
Let's read 2d.
Interviewer: What other problems do you see
Susan: I guess there's too much rubbish and waste in the streets.
Jason: Yes! Every day people are throwing away things like wooden chopsticks, plastic bowls and plastic bags.
Susan: They're also littering in public places, for example, during picnics in parks. This is turning beautiful places into ugly ones.
Interviewer: You're right. These are serious problems for our environment. Next, let's talk about the things we can do to help.
2d
While-reading
2d
So together, our actions can make a difference and lead to a better future!
Read 2d and complete the mind map.
While-reading
2d
Air
pollution
Waste
pollution
So together, our actions can make a difference and lead to a better future!
take the bus
take the subway
ride a bike
be good for health
doesn’t cost anything
bring a bag to go shopping
never take wooden chopsticks or plastic forks when you buy takeaway food
throw rubbish in the bins
Check your answers.
While-reading
2a
Interviewer: Today we're talking to Jason and Susan about __________. Jason and Susan, can you tell us about some of the problems you've seen
Jason: I think one problem is _____________.
Susan: Yes, and I _______________________.
Interviewer: What do you think ___________
Susan: Well, there are ____________________.
Jason: And ________________________________.
Post-reading
2a
Interviewer: What other problems do you see
Susan: I guess ________________.
Jason: Yes! Every day ___________________.
Susan: They're also ___________. This is turning ___________ into ____________.
Interviewer: You're right. These are serious problems for our environment. Next, let's talk about ______________.
Post-reading
Interviewer: Jason and Susan, what are your ideas for ____________
Jason: Well, to __________________________.
Susan: Yeah, _______. There are other _____________________!
Interviewer: Great ideas! What about waste pollution
2d
Post-reading
2d
Susan: Mmm, I think simple things _____________. I started doing that a year ago.
Jason: Me, too. Also, I never _________________. I use the ones at home.
Susan: And ________________________.
Interviewer: So together, our actions can ________________!
Post-reading
Jason: The air has become really polluted around here.
I’m gett ing very worried.
Susan: Yes, I used to be able to see stars in the sky.
Jason: The problem is that ...
Susan: Yes, we need to / we’d better ...
Use the information in 2a, 2b and 2d to role-play conversations.
Post-reading
How should we do to solve the pollution problem
Post-reading
Plant more trees.
Recycle.
Do not litter.
Never use open fires.
Add more branches to strengthen the tree.
Walk or ride a bike whenever possible.
Choose organically grown fruits and vegetables.
Post-reading
Post-reading
We're trying to save the earth!
我们正努力拯救地球！
try to do sth.
① We should try to save water.
② Try to tell what this is just by feeling it.
努力做某事；试着做某事
我们应设法节约用水。
凭手摸摸说出这是什么东西？
try doing sth. 试图做某事。
区别是：try to do侧重努力，为了达到目的而努力。try doing只是一种新的尝试，不带明显的目的性。
Language points
① Happiness does not always relate to wealth.
② These two events were related to each other.
③ We should solve the problems related to our environment.
2. Here are some words related to different kinds of pollution.
这里有一些与各种污染有关的词。
relate to sth./sb.
涉及；与……相关
幸福不总与财富有关。
这两个事件互相关联。
此处related to...作words的后置定语
我们应该解决与环境有关的问题。
Language points
3. Everyone in this town should play a part in cleaning it up!
这个镇上的每个人都应该参与清理工作！
① A good diet plays a large part in helping people live longer.
② The pay played some part in my decision to take the job.
play a part in sth./doing sth
在……方面起作用
健康的饮食在帮助人们长寿方面起着非常大的作用。
工资在一定程度上影响了我接受这份工作的决定。
Language points
为了减少空气污染，我们应该乘公共汽车或地铁而不是开车。
① The doctor told him to cut down on his drinking.
② Car owners were asked to cut down travel.
cut down
减少
医生劝他少喝酒。
车主们被要求减少出行。
4. Well, to cut down air pollution, we should take the bus or subway instead of driving.
Language points
① I took your bag instead of mine by mistake.
② Now I can walk to work instead of going by car.
instead of
我不巧错拿了你的包。
现在我可以步行去上班，而不必开车了。
而不是
Language points
5. It's good for health and it doesn't cost anything!
它对健康有益而且不用花钱。
① How much did it cost
② The meal cost us about 140 yuan.
③ It costs a fortune to fly first class.
cost
v. 花费。(~ sth, ~ sb. sth, ~sth. to do sth.)
这东西要多少钱？
这顿饭花了我们约140元。
乘坐飞机头等舱要花一大笔钱。
Language points
拓
展
cost
n. 花费；价钱
① The total cost to you (= the amount you have to pay) is 3000 yuan.
② A new computer system has been installed(安装) at a cost of 2000 yuan.
你总共要支付3000元。
新的计算机系统已安装，费用为2000元。
Language points
拓
展
四个表示"花费"的动词：
cost, pay, spend, take
1. Don't use too much of it─it cost a lot of money.
2. Would you mind paying the taxi driver
I'll pay for the tickets.
cost 花钱
● 物+ cost (+人) + 钱 (+ to do sth.)
pay 付钱
● 人+ pay (+ sb.) + 钱 + for sth.
这东西很贵，不要用得太多。
您付出租车费好吗？
我来买票。
Language points
拓
展
四个表示"花费"的动词：
cost, pay, spend, take
3. She spent 100 yuan on a new dress.
I spend too much time watching television.
4. It takes about half an hour to get to the airport.
spend 花费钱或者时间
● 人+ spend + 钱/时间 + doing sth. / on sth.
take 花时间
● It + takes +人+ 时间+ to do sth.
她花100元买了一条新连衣裙。
我看电视花的时间太多。
到机场大概需要半小时。
Language points
选择合适的单词并用其适当形式完成短文。
cost, pay, spend, take
Yesterday, Linda went to the biggest bookstore in her city. It (1)_________ her about an hour to get there. In the bookstore, she bought the new book of her favorite writer and (2)_________ 38 yuan for it.
As a book lover, Linda has a collection of more than 300 books. They (3)_________ her a lot of money. Her favorite place is the library. She (4)_________ almost all of her free time reading there.
took
paid
cost
spends
Language points
6. So together, our actions can make a difference and lead to a better future!
所以，我们一起行动，就能有所作为，走向更美好的未来！
① There are many ways to make a difference
in the world.
② Can he make a difference here
make a difference
产生影响；有所作为
改变世界的方法有很多。
他会不会在这里有所作为？
Language points
1. Can you talk about different kinds of pollution
2. Can you talk about the reasons of the pollution and give ideas to reduce the pollution
Self-evaluation
Start a poster about saving the earth. You should include the following aspects:
What was the problem
What caused the problem
How should we solve the problem
Homework
