(共52张PPT)
Unit 13 We’re trying to save the earth!
Period(One) Section A(1a-2d)
版本:人教版八年级上册
Lead in
Watch a video and say what you find.
Objectives
To talk about pollution and environmental
protection.
2. To learn to use the sentence patterns.
used to...but now
should do sth.
3. To master key words and phrases:
litter, bottom, fisherman, coal, ugly, advantage, cost, wooden, plastic, make a difference, lead to, instead of
乱扔；垃圾；废弃物v.& n.
底部；最下部n.
渔民；钓鱼的人n.
煤；煤块n.
litter
bottom
fisherman
coal
丑陋的；难看的adj.
ugly
New words
优点；有利条件n.
advantage
wooden
plastic
cost
塑料的； adj.
塑料；塑胶 n.
花费；价钱n.
木制的；木头的adj.
takeaway
bin
/'te k we /
/b n/
外卖食物 n.
垃圾箱 n.
Warming up
Do you like it
a clean city…
the blue sky…
The earth is polluted.
But…
air pollution
The factories that
burn coal pollute
the air with a lot of
black smoke.
n. 煤炭
Factories put waste into the river.
water pollution
mobile phone pollution
litter v. 乱扔
n. 垃圾(不可数)
rubbish waste
垃圾，废弃物
People should throw away litter in the bin.
n. 垃圾箱
noise pollution
There are more
cars on the road.
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
1a
noise pollution air pollution water pollution
loud music
planes
building houses
mobile phones
machines
crowds
cars
planes
factories
smoking
building houses
burning
power plants
rubbish
littering
ships
factories
waste water
industrial waste
noise pollution 噪音污染
noise名词，意为“噪音”，pollution为不可数名词，意为“污染；污染物”，其动词形式为pollute ，意为“污染” 。
【辨析】noise, sound与voice
noise
sound
voice
意为“噪音，喧闹声”，常指不悦耳、不和谐的嘈杂声。
泛指自然界的各种声音。
一般指人的嗓音，如说话、唱歌、谈笑声等。
Don’t make _______ in the class!
Light travels much faster than ________.
The girl has a sweet _______.
用 noise, sound 与 voice 填空。
noise
sound
voice
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.
really dirty
rubbish
fish
1b
at the bottom of 在……的底部
from top to bottom 完完全全；从头到脚；自上而下
fisherman可数名词，意为“渔民；钓鱼的人”，由“fisher （n. 渔夫） + man （n.男人）”构成。复数形式是fishermen。
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.
litter
waste
government
close down
clean up
【辨析】litter，rubbish 与waste
litter指随手丢弃的垃圾。
rubbish指任何成堆的、破损的、用过的或无用的东西。
waste指任何被丢弃的东西。
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.
原文:
Tony: No way! It used to be so clean. In fact, it has
always been the nicest river in this town.
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
The river was dirty. Even the bottom of the river was full of rubbish.
But it used to be so clean!
Yes, but people are throwing litter into the river.
Everyone in this town should play a part in cleaning it up!
Make conversations using the words in 1a.
The river …
Yes, …
But I was there last weekend and the river was really dirty.
What caused the problem
Factories are also putting waste into the river.
People are throwing litter into the river.
What should we do
We should write to the government and ask them to close down the factories.
What else can we do
Everyone should help to clean up the river.
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
2a
A. land pollution B. air pollution
C. noise pollution D. water pollution
2b
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.
cars
pollute
more
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.
are throwing away
public places
原文:
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.
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.
2c
Use the information in 2a and 2b to role-play conversations between Jason and Susan.
The air has become really polluted around here. I’m getting very worried.
Yes, I used to be able to see stars in the sky.
The problem is that…
2d
Role-play the conversation.
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!
代替，而不是
Interviewer: Great ideas! What about waste pollution
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.
bring的反义词是take
外卖食物
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 a better future!
起作用；有影响
导致
Watch and read
Language points
1. We’re trying to save the earth!
我们正在竭尽全力拯救地球!
try to do =try one’s best to do 尽力去做某事
【翻译】
我们将努力在一周内完成这项工作。
We’ll try to finish the work in a week.
try相关短语:
try doing sth. 试着做某事
try on 试穿
try out 尝试；试验；试试
2. It’s good for health and it doesn’t cost anything!
cost v. 花费；使付出
指花费金钱，主语通常是物。
cost的过去式和过去分词均为cost。
sth. costs sb. some money
某物花费某人多少钱
【翻译】
1) 王先生花了200元买了新衬衫。
The new shirt cost Mr Wang 200 yuan.
2) 新电脑花了多少钱？
How much does the new computer cost
pay, take &spend
take，spend，pay都可以表示“花费”，
但用法各有不同。
1) take多表示花费时间，常用于it takes sb. some time to do sth. 这一句型中，it作形式主语。
e.g. It usually takes me 40 minutes to
cook the dinner.
2) spend多表示花费时间和金钱，主语通常是人，常用于sb. spend(s) some time / money on sth.和sb. spend(s) some time / money (in) doing sth.两种句型。
e.g. David spent 2,000 yuan on the new machine.
My father spends an hour (in)
reading the newspaper every day.
3) pay多表示花费金钱，主语通常是人，常用于sb. pay(s) some money for sth.句型。
e.g. Tommy paid 20 yuan for his
breakfast yesterday.
3. …, we should take the bus or subway instead of driving.
instead& instead of
instead为副词，意为“代替；反而”，在句中作状语。
instead of意为“代替；而不是”，后面可接名词、代词、v-ing形式或介词短语等。
4. So together, our actions can make a difference and lead to a better future!
1) make a difference (to…)
(对……)产生重大影响或作用，to是介词。
【拓展】
make no difference to 对……没有影响
make some difference to 对……有一些影响
e.g. It makes no difference whether you go
today or tomorrow.
The sea air has made some difference to
her health.
2) lead to 意为“导致”。
e.g. Eating too much sugar can lead to
health problems.
【链接】
lead sb. to ... 可意为“带领某人去……”。
e.g. His pet dog Lucky led us to his house just
now.
Summary
write to ... 给……写信
the bottom of the river 河底
throw litter into the river 往河里扔垃圾
clean up ... 把……打扫干净
land / air / noise / water / waste pollution 土地 / 空气 / 噪音 / 水/ 垃圾污染
turn ... into ... 把……变成……
cut down air pollution 减少空气污染
instead of 代替
be good for ... 对……有好处
takeaway food 外卖食品
用动词的适当形式填空。
1. We’re trying _______ (save) the earth.
2. There used to _____ (be) clean and beautiful.
3. There are too many ___ for _________to catch (fish).
4. It’s bad for environment to use _________ (wood)
chopsticks.
to save
be
fish
wooden
fishermen
Exercise
1.He ___ go out with his parents, but now he ____
staying at home alone.
A. used to; is used to B. is used to; used to
C. used to; used to D. is used to; is used to
2. The interesting book ___ me 10 yuan.
A. took B. paid
C. spend D. cost
3. We must do something useful to ___ pollution.
A. cut off B. cut up
C. cut down D. cut in
4. Smoking can ___ lung cancer. You’d bettter give it up.
A．work on B．lead to
C．take away D．put out
Homework
The earth is badly polluted. Please make a poster and think of what we can do.
2. Preview the article on page 99.
1. Make a poster!
谢谢
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Unit 13 We’re trying to save the earth!
Section A(1a-2d)练习
一、词句翻译
1. v. 乱扔 n. 垃圾；废弃物____
2. adj. 丑陋的；难看的____
3. n. 优点；有利条件____
4. v. 花费 花费；n.价钱 ____
5. adj. 木制的；木头的____
6. n. 底部；最下部____
7. n. 渔民；钓鱼的人____
8. n. 煤；煤块____
9. adj. 塑料的塑料；n. 塑胶____
10. n. 外卖食物____
11. n . 垃圾箱____
12. 在河床底部____
13．充满了垃圾____
14．把垃圾扔入河中____
15．尽一份力把它清理干净____
16．使空气中充满了黑烟____
17．减少空气污染____
18．产生影响____
19. 这个城镇里的每个人都应当尽一份力把它清理干净！
Everyone in this town should ____ ____ ____ ____ _____ it up!
20. 为了减少空气污染，我们应该乘坐公共汽车或地铁，而不是开车。
____ ____ ____ ____ ____，we should take the bus or subway instead of driving.
21. 因此，我们齐心协力就能带来变化，创造更加美好的未来！
So together，____ ____ ____ ____ ____ ____ and lead to a better future!
二. 根据句意及所给汉语提示，写出所缺单词。
1. These _______ (渔民) go fishing near the lake every day.
2. In order to do the _______ (科学的) research, we'll have to collect as much information as possible.
3. Of the four buildings, I think Meilian Building is the _______ (难看的).
4. Do you know several traffic _______ (法规) will be made
5. This bike _______ (花费) me 500 yuan. I bought it last week.
三. 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。
advantage, cruel, industry, coal, wood, plastic
1. The old _______ bridge has been over the river for many years.
2. The burning of _______ and oil causes serious air pollution.
3. There are lots of _______ bags floating (漂浮) in the river, making it very dirty.
4. We all know that the development of modern _______ has improved our living conditions.
5. “Don't be _______ to me! I can't stand it!” he cried in an angry voice.
6. As a basketball player, he has some _______. For example, he is very tall.
四. 根据汉语意思完成英语句子，每空一词。
1. 这条河很干净，在它的底部我们可以看到很多鱼。
The river is clean and we can see lots of fish _______ _______ _______ _______ it.
2. 我们正在尽力减少空气污染。
We are trying to _______ _______ _______ _______.
3. 我们相信新科技将带来更美好的生活。
We believe that new technology will _______ _______ a better life.
4. 熬夜对健康有害。
Staying up too late _______ _______ _______ health.
5. 在山顶，我看到了整个城市。
_______ _______ _______ _______ the mountain, I saw the whole city.
6. 你能告诉我什么是食物链吗？
Could you tell me what _______ _______ _______ is
7. 我们必须阻止他们往河里扔垃圾。
We must stop them _______ _______ _______ the river.
8. 这条河被严重污染，我们应该清理它。
The river was badly polluted. We should _______ _______ _______.
五. 根据对话内容，从方框中选择恰当的选项补全对话，其中有两项多余。
A: Hello, Jenny. (1) _______
B: I'm reading newspapers about protecting the environment.
A: Oh, I hear you're working for an organization that protects the environment.
B: Yes. (2) _______
A: Well, can you tell us what you are doing there
B: (3) _______ For example, the three R's — reduce, reuse and recycle. All of them are important.
A: So what can we do at home to protect the environment
B: (4) _______ For example, we should use both sides of paper and reuse plastic bags.
A: What can students do at school
B: Recycling is a good way to protect the environment and save money. (5)_______
A: Good! Thank you for your advice!
A. What's it about B. What are you doing C. I have worked for it for two years.D. What organization are you working for E. We should reduce (减少) the waste we produce.F. So we encourage students to collect waste paper and recycle it.G. I mainly hand out notices to tell people about protecting the environment.
参考答案：
词句翻译
1.litter
2.ugly
3.advantage
4.cost
5.wooden
6.bottom
7.fisherman
8.coal
9.plastic
10.take away
11.bin
12.at the bottom of the river
13.be full of the rubbish
14.throw litter into the river
15.play a part in cleaning it up
16.fill the air with black smoke
17.cut down air pollution
18.make a difference
19.play a part in cleaning
20.to cut down air pollution
21.our actions can make a difference
二. 1. fishermen 2. scientific 3. ugliest 4. laws 5. cost
三. 1. wooden / wood 2. coal 3. plastic 4. industries 5. cruel 6. advantages
四. 1. at the bottom of 2. cut down air pollution
3. lead to 4. is harmful to / bad for
5. At the top of 6. the food chain
7. throwing litter / rubbish into 8. clean it up
五. 1-5 BCGEF
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