Unit 13 we are trying to save the earth. Section A 1a-2d 课件（共46张PPT） 人教新目标 (Go for it) 版九年级全册

(共46张PPT)
Unit 13
We're trying to save the earth!
Section A1
(1a-2d)
What's wrong with the earth
The earth is polluted.
Pollution is anything that makes the earth unhealthy and dirty.
Air pollution.
Water pollution.
Soil (Land) pollution.
Noise pollution.
Air pollution.
Smoke
makes air dirty.
from
cars (burn fossil fuel(化石燃料)--- oil)
industrial chemicals (release industrial smoke and dangerous gases)
wildfires (burn wood or fossil fuel --- coal)
volcanoes
Water pollution.
the worst and most dangerous form of pollution
Dirty particles substances(有毒颗粒物质) or chemicals
are into the water bodies.
others
leaked oil (石油泄漏)
some substances used by farmers to kill pests or weeds seep into(渗入) the ground
Soil (Land) pollution.
Destruction of the earth's land surfaces
radioactive pollutants (放射性污染物)— from nuclear reactors(核反应堆), hospitals, explosions(爆炸) ...
solid waste
chemicals — chemical fertilizers(化肥)，insecticides(杀虫剂), pesticides(农药), industrial wastes(工业废料) ...
Noise pollution.
the sounds get too loud and lasts too long
Natural events— heavy rains, animal roaring, earthquake, fast wind and volcano eruption ...
Transportation—airplanes, helicopters and vehicles
Household sources — food mixer grinder, vacuum cleaners, washing machine and music systems...
Social events — disco, parties...
Industrial activities — big industries, printing presses, and construction sites...
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
bottom
e.g. I waited for them at the bottom of the hill.
我在山脚下等候他们。
n. 底部；最下部
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
coal
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。
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
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
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。
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
Write them in the box below. Then add more words.
P97
loud music cars rubbish planes
littering ships factories smoking
building houses mobile phones
air pollution
_____________ _____________ _____________ _____________ _____________
noise pollution
_____________ _____________ _____________ _____________ _____________
water pollution
_____________ _____________ _____________ _____________ _____________
loud music
planes
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)
1b
complete the sentences.
P97
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
What
Why
How
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。
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.
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
1c
Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.
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.
Circle the kinds of pollution that Jason and Susan talk about.
land pollution
air pollution
C. noise pollution
D. water pollution
2a
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
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 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.
听
力
原
文
①
②
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 chopticks, 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.
听
力
原
文
①
②
Let's read 2d.

2d
Complete the chart according to 2d.
Problems Ideas for solving the problem
Air pollution Take the ____ or _______, or __________ instead of driving.
Waste pollution (Land pollution) Bring a ____ to go shopping.
Never take _______ chopsticks or ______ forks when buying _________ food.
Throw ________ in the ____.
bus
subway
ride a bike
bag
wooden
plastic
takeaway
rubbish
bins
Use the information in 2a, 2b and 2d to role-play conversations.
What was the problem
What caused the problem
How should we solve the problem
I think one problem is the air is badly polluted.
There are more cars on the road and factories that burn coal also pollute the air .
Well, to cut down air pollution, we should take the bus or subway instead of driving.
Read and learn the conversations of 2a and 2d by heart in 5 minutes.
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 ________________________________.
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 ______________.
2a
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
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 ________________!
2d
How should we do to solve the problem
Walk or ride a bike whenever possible.
Choose organically grown fruits and vegetables.
Plant more trees.
Recycle.
Do not litter.
Never use open fires.
Add more branches to strengthen the tree.
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？
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。
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。
4. 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。
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。
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.
这东西很贵，不要用得太多。
2. Would you mind paying the taxi driver
您付出租车费好吗？
I'll pay for the tickets.
我来买票。
3. She spent 100 yuan on a new dress.
她花100元买了一条新连衣裙。
I spend too much time watching television.
我看电视花的时间太多。
4. It takes about half an hour to get to the airport.
到机场大概需要半小时。
四个表示"花费"的动词：
cost, pay, spend, take
cost 花钱
● 物+ cost (+人) + 钱 (+ to do sth.)
pay 付钱
● 人+ pay (+ sb.) + 钱 + for sth.
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.
拓展
选择合适的单词并用其适当形式完成短文。
cost, pay, spend, take
Mrs. Green is an office worker. She often (1)______ the weekend doing some shopping. Today is Sunday and she went to the mall with her friend. The traffic was heavy and it (2)______ them about half an hour to get there. She saw a very beautiful blouse there. She decided to buy it and (3)______ 120 yuan for it. She also bought a black handbag and it (4)_____ her 90 yuan.
spends
took
paid
cost
5. 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？
1. try to do sth.
2. relate to
3. play a part in
4. cost
5. make a difference
Ⅰ. 根据句意，用所给单词的适当形式填空。
1. The worker is going to paint the _______ doors for a second time.
2. Paul interviewed some _________ who live in a village near the sea.
3. Do you know what kind of rubbish the blue ____ is used for
4. The cleaner went to the kids to stop them from ________ around.
5. One of the greatest ___________ of this fridge is that it uses less electricity.
fisherman, wood, litter, advantage, bin
wooden
fishermen
bin
littering
advantages
II. 根据汉语意思完成句子，每空一词。
1. 为了减少事故，每个人都必须遵守交通规则。
To ___ _____ accidents, everyone must follow the traffic rules.
2. 过量的工作和过少的休息会导致不健康。
Too much work and too little rest can ____ ___ illness.
cut down
lead to
3. 尼克想成为一名飞行员，而不是像他父亲一样当一名医生。
Nick wants to be a pilot ______ __ a doctor like his father.
4. 你读过的书将会影响你未来的生活。
The books you read will _____ _ __________ to your future life.
5. 每位足球运动员都为赢得比赛发挥着作用。
Each football player _____ _ ___ __ winning the game.
instead of
make a difference
plays a part in
Write a short passage to talk about our environment from the three aspects.
What was the problem
What caused the problem
How should we solve the problem