(共30张PPT)
Unit 13
We are trying to save the earth!
Section A (1a-2d)
情景式教学听说课公开课
人教新目标版 九年级(下册)
Learning objectives
1.学习本课新词汇：litter ,bottom, fishman, coal,ugly, advantage, cost, wooden, plastic, takeway, at the bottom of the river,
be full of the rubbish, throw litter into the river,play a part in
掌握句型：To cut down air pollution, we should take the bus or subway instead of driving. The air is badly polluted.
Everyone in this town should play a part in cleaning it up.
Our can make a difference and lead to a better future!
2. 通过观看视频后回答问题，谈论图片，能够说出污染的种类以及造成污染的原因。
3.通过1b\2a\2b听力练习，以及阅读2d的对话，能够正确完成听力填空、选择答案和回答问题，能够说出听力材料中环境污染问题，造成的原因以及解决的方法和途径。
4.树立环保意识，激发社会责任感和对未来的思考。
Let's enjoy a video and answer the questions.
1.What’s the biggest problem in our lives
2. What kinds of pollution does the video show
3. What did our sky use to
look like What about now
4. What other kinds of pollution do you know
5. What caused these problems
Answer the questions according to the video.
1.What’s the biggest problem in our lives
2. What kinds of pollution does the video show
Pollution.
But, the earth is badly polluted.
Air pollution.
Answer the questions according to the video.
3. What did our sky use to look like What about now
4. What other kinds of pollution do you know
Our sky used to be blue and the air was once clean.
Now the sky is a dull grey.
water pollution
noise pollution
waste\land pollution
Answer the questions according to the video.
5. What caused these problems
Air pollution
The factories that burn coal pollute the air with a lot of black smoke.
Cars pour harmful gases into the air.
Some people smoke in public places.
n. 煤炭
The weather is always foggy.
We can't see the blue sky.
We can't breathe the fresh air.
Answer the questions according to the video.
5. What caused these problems
Factories put waste into the river.
People are throwing litter into the river.
Water pollution
Noise pollution
Loud music, building houses and traffic cause the noise pollution,
We are harming our planet in so many ways.
noise pollution
air pollution
water pollution
waste\land pollution
Serious Pollution
How many kinds of pollution do these pictures show
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
Write them in the box below. Then add more words.
noise pollution air pollution water pollution
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
loud music,
planes,
building houses,
mobile phones
cars,
factories,
smoking,
building houses
rubbish,
littering,
ships,
factories
Tony and Mark are talking about pollutions.
Tony
Mark
What kind of pollution are Tony and Mark talking about
dirty; full of rubbish
throw litter into…
put waste
into…
clean up the river ;
close down 减少 the factories
Listen and answer the questions.
1．What does Tony want to do later this afternoon
2．Why doesn’t Mark want to go with Tony
3．How was the river in the past
4. What kind of pollution are Tony and Mark talking about
Tony wants to go swimming in the river later this afternoon.
Because the river was really dirty.
It used to be so clean.
Water pollution.
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
△bottom n. 底部，最下部
The police found a body at the bottom of the lake.
Listen and repeat.
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。
play a part in doing sth.参与做某事; 在做某事上起作用
Let’s have a writing practice.
1. What is the problem
2. What causes the problem
3. How should the problem be solved
Write a short passage about water pollution according to the questions.
Our river used to be so clean but now it is really dirty. Even the bottom of the river is full of rubbish. So there are no more fish for fishermen to catch. (说问题，现状)
What caused the problem People are throwing litter into the river. Factories are putting waste into the river. (分析原因 ）
How should the problem be solved We should write to the government and ask them to close down the factories. Not just the government, everyone should play a part in cleaning up the river.
Let’s have a writing practice.
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 littering in the
river.
Tony: 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.
1c
problem
cause
solution
An interview is talking about to Jason and Susan about environmental problems.
Susan
Jason
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
Listen again and judge T or F.
Listen again and circle T or F.
1.Jason thinks that the air is badly polluted. T / F
2.Susan used to see the mountains clearly. T / F
3.People are also littering in public places. T / F
4.They think that they can do nothing to help. T / F
5.They are talking about the noise pollution. T / F
2a
srars
something
air and land
Listen once more 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 parks into ugly ones.
more cars
pollute
are throwing away
public places
Listen again and complete the sentences.
2b
Listen and repeat.
Retell according to the mind map of 2b.
environmental problems
too much rubbish and waste
badly polluted
more cars
burn
coal
a lot of black
smoke
litter in public places
in the streets
Watch a video and answer the question.
What are they talking about in the conversation in 2d
How to solve
air pollution.
waste pollution.
What are your ideas for solving air pollution/waste pollution
Read 2d and fill in the chart.
Pollution Ways to solve the problem
Air pollution
Waste pollution
Taking the bus or subway instead of driving
Riding a bike
Bringing a bag to go shopping
Never taking wooden chopsticks or plastic forks when we buy takeaway food
Throwing rubbish in the bins and keeping public places clean and beautiful for everyone
What are the advantages of riding a bike
It can cut down air pollution; it’s good for health and it doesn’t cost anything.
Read 2d and fill in the chart.
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. Other advantages of bike riding are that it’s good for health and it doesn’t cost anything!
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.
Susan: And remember to throw rubbish in the cans and keep public places clean and beautiful for everyone.
Interviewer: So together, our actions can make a difference and lead to a better future!
减少
the advantage of …“…的优点”
起作用，有影响
Let’s have a writing practice.
1. What is the problem
2. What causes the problem
3. How should the problem be solved
Write a short passage about air pollution according to the questions.
1. These days, the air is badly polluted because there are more cars on the roads and factories that burn coal also pollute the air with a lot of black smoke.
To cut down air pollution, we should take a bus or subway instead of driving. Or we can ride a bike, which is good for health and doesn't cost anything.
Hope there will be less and less air pollution in the future.
Let’s have a writing practice.
1. What is the problem 2. What causes the problem
3. How should the problem be solved
Write a short passage about waste pollution according to the questions.
2. Nowadays, the waste pollution is becoming more and more serious. There is too much rubbish and waste because people are throwing away things every day. And people are also littering in public, which is turning beautiful places into ugly ones.
To solve the problem, there are a lot of things we can do. For example, simple things like bringing a bag to go shopping can help. Besides, we should not use the wooden chopsticks or plastic forks when buying takeaway food. We are supposed to use the ones at home. Last but not the least, remember to throw rubbish into the bins and keep public places clean and beautiful for everyone.
In a word, our actions can make a difference and lead to a better future.
How can we live a green life and save our earth
stop riding in cars
turn off the lights when we leave a room
recycle books and paper
If we all play a part in protecting the earth,
it will be better tomorrow.
For today’s homework.
Review the new words and expressions.
Practice the conversation in 2d.
Finish the poster with your partners.
谢谢
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Unit 13 Section A 1a-2d 学案 (知识精讲+分层作业)
【词汇用法】
at the bottom of the river 在河床底部
be full of the rubbish 充满了垃
throw litter into the river 把垃圾扔入河中
play a part in cleaning it up 尽一份力把它清理干净
land pollution 土地污染
fill the air with black smoke 使空气中充满了黑烟
cut down air pollution 减少空气污染
make a difference 产生影响
take action 采取行动
【词汇用法】
pay的基本用法
pay （sb.） money for sth. 付钱（给某人）买……
例：I have to pay them 20 pounds for this room each month. 我每个月要付20英磅的房租。
pay for sth. 付……的钱。
例：I have to pay for the book lost. 我不得不赔丢失的书款。
pay for sb. 替某人付钱。
例：Don't worry! I'll pay for you. 别担心，我会给你付钱的。
pay sb. 付钱给某人。
例：They pay us every month. 他们每月给我们报酬。
pay money back 还钱。
例：May I borrow 12 yuan from you I'll pay it back next week.
你能借给我12块钱吗？下周还你。
pay off one's money 还清钱。
【重点语法】
动词不定式做目的状语时的用法
To cut down air pollution, we should take the bus or subway instead of driving. 为了减少空气污染，我们应当乘坐公汽或地铁而不是开车。
本句中To cut down air pollution是动词不定式作目的状语。
1. 不定式和不定式短语作目的状语
不定式和不定式短语作目的状语，主要用来修饰动词，表示某一动作或状态的目的。为了使目的意义更加清楚或表示强调意义时，还可以在前面加 in order to 或 so as to。
例如：I've written it down in order not to forget.He shouted and waved so as to be noticed.
在句子中作谓语动词的状语的不定式或不定式短语，表示的是主语的目的，因此，其逻辑主语通常是句子的主语。
比较：To draw maps properly, you need a special pen.（正）
To draw maps properly, a special pen is needed.（误）
由 in order to 引导的目的状语，既可以置于句尾，也可以置于句首，而由 so as to 引导的目的状语，只能置于句尾，而不能置于句首。
比较：They started early in order to get there in time.（正）
In order to get there in time, they started early.（正）
They started early so as to get there in time.（正）
So as to get there in time, they started early.（误）
2. 不定式的复合结构作目的状语
当不定式或不定式短语有自己的执行者时，要用不定式的复合结构（即在不定式或不定式短语之前加 for + 名词或宾格代词）作状语。
例如：He opened the door for the children to come in.She fetched several bottles which she placed on the counter for Harry to inspect.
3. 目的状语从句与不定式的转换
英语中的目的状语从句，还可以变为不定式或不定式短语作状语，从而使句子在结构上得以简化。可分为两种情况：
（1）当目的状语从句中的主语与主句中的主语相同时，可以直接简化为不定式或不定式短语作状语。
例如：We'll start early in order that/so that we may arrive in time.We'll start early in order to/so as to arrive in time.
（2）当目的状语从句中的主语与主句中的主语不相同时，要用动词不定式的复合结构作状语。
例如：I came early in order that you might read my report before the meeting.I came early （in order）for you to read my report before the meeting.
【重点句型】
1.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河流！
play a part in 意为“参与……；在……方面起作用”，相当于 play a role in，后跟名词、代词或动词-ing 形式。
e.g. He didn’t play a part in the competition at all. 他根本就没参加这次比赛。
Did you play a part in fighting？ 你参与打架了吗？
拓展：短语 play a part in 中，part 前可加 important、 active 等形容词，表达“发挥重要作用”“积极参与”等。
e.g. Computers are playing an important part in our daily life.
电脑正在我们的日常生活中发挥着重要的作用。
All the students play an active part in the school activities.
所有的学生都积极参加学校的活动。
Well, to cut down air pollution, we should take the bus or subway instead of driving.
为了减少空气污染，我们应该乘公共汽车或坐地铁来代替开车。
（1）句中动词不定式短语 to cut down air pollution 作目的状语，相当于 in order to cut down air pollution。
e.g. I’ve written it down in the notebook (in order) to remember it well.
为了记得牢固，我已经把它写在笔记本上了。
（2）instead of 短语介词，意为“代替；而不是”，其后常跟名词、代词、动词-ing 形式或介词短语等。
e.g. I have come instead of my brother. He is ill.我替我哥哥来的，他病了。
He gave us a hand instead of laughing at us last Wednesday.
上周三他不仅没嘲笑我们，反而帮了我们一把。
辨析：instead of 与 instead
instead of 短语介词，意为“代替；而不是”，后接名词、代词、动词-ing 形式或介词短语等做宾语，常位于句中
instead 副词，意为“代替；反而”，常位于句首或句末做状语，位于句首时常用逗号与后面的内容隔开
They will go on vacation by plane instead of by train.
他们要坐飞机去度假，而不是坐火车。
She didn’t play basketball yesterday. She went shopping instead.
她昨天没打篮球，而是去购物了。
3.It’s good for health and it doesn’t cost anything! 这对健康有好处，并且还不用花钱!
cost 此处用作动词，意为“花费”；还可用作名词，意为“花费；价钱”。
e.g. John’s new bicycle cost $160. 约翰的新自行车花了160美元。
The cost of living here is too high. 在此生活的费用太高。
The cost of the coat was $21. 这件大衣的价钱是21美元。
辨析：cost、spend、pay 与 take
cost 主语是物 sth. cost (s) (sb.)+金钱
spend 主语是人 ①sb. spend(s)+时间/金钱+on sth.
②sb. spend(s)+时间/金钱+doing sth.
pay 主语是人 ①sb. pay(s)+金钱+for sth.
②sb. pay(s) for sth.
take 主语是it It takes sb.+时间+to do sth.
The computer cost me $1,000.
=I spent $1,000 on the computer.
=I paid $1,000 for the computer.
我买这台电脑花了1 000美元。
I have paid for the house. 我已经付了房款。
It took me an hour to write the letter. 我花了一个小时写这封信。
4.So together, our actions can make a difference and lead to a better future! 因此，我们齐心协力就能带来变化，创造更加美好的未来!
（1）make a difference 意为“起作用；有影响”。表达“对……产生影响”则用 make a difference to ...。difference 前面可加修饰语，如 big、great 等，表示受影响的程度。
e.g. The false step will make a great difference to our plan.
这次失误会对我们的计划产生很大的影响。
（2）lead to 意为“导致；通向（某地）”，其中，to 为介词。
e.g. Hard work can lead to success. 苦干方能成功。
The road leads to the small town. 这条路通向那个小镇。
拓展：lead sb. to sp. 意为“把某人带到某地”。lead 的过去式和过去分词都是 led。
e.g. He led the guests to the reception room. 他把客人们带到了接待室。
5. Well, to cut down air pollution, we should take the bus or subway instead of driving.
cut down 是固定搭配，意思是减少。cut down 还有砍倒的意思。
We shouldn’t cut down trees. Instead, we should plant more trees.
拓展： cut off意思是切除； cut into 意思是把…切成…；
cut up 意思是切碎， cut in 意思是插队.
.此句中 instead of 意思是代替. 其后一般接名词、代词、动名词或介词短语作宾语。
instead 是副词， 意思是反而。.
单项选择
( )1. — How much is the ticket to Central Park
— A one- way ticket________ 40 dollars，and you can ________ another 20 dollars for a round trip.
A．spends；pay B．costs；spend C．pays；spend D．costs；pay
( )2. We should keep the windows ________ in order to let the fresh air in.
A．opening B．open C．closed D．close
( )3. We shouldn't ________ trees because trees are important to environmental protection.
A．cut off B．cut in C．cut down D．cut up
( )4. — Let's go boating ________ staying at home，shall we
— Good idea.
A．as for B．instead of C．because of D．such as
( )5. I ______ sleep very well，but then I started doing yoga and it really helped.
A．didn't use to B．used to C．was used to D．wasn't used to
二、用所给单词的适当形式填空
6.Look at the sign. It says “No (litter)”.
7.We used (have) a party to welcome our new friend on weekends.
8.The air is (bad) polluted because there are too many cars now.
9. The young should do meaningful things instead of (play) with phones all day.
10.Remember (throw) rubbish in the bins and keep public places clean and beautiful.
三、完成句子。
11．你能给我们提一些关于如何减少水污染的建议吗？
Could you give us some advice on how to _____ ______ ______ __________？
12．人们普遍认为，教育会对一个人的生活产生影响。
It's commonly believed that education can ______ ____ __________ to a person's life.
13．教室里挤满了学生。
The classroom ____ _________ ________ students.
14．因为高铁站，这个村庄已经变成了一个现代化的城镇。
Because of the high- speed railway station，the village has already _______ ______ a modern town.
15．我们应该向那些参与救助病人的医生们道谢。
We should say thanks to those doctors who have _______ ____ _________ ____ _______ the patients.
四、完形填空
March 22 is World Water Day. It started in 1993. It not only makes us think about the importance of water, but also calls on us to 16 and protect water. Today, we're facing terrible water problems. Among them, the wastewater problem is rather 17 . And the subject of World Water Day in 2017 is “wastewater”.
What is wastewater It is used water. Usually, wastewater comes from homes, 18 , hospitals and so on. It is produced by different kinds of activities,including washing machines, taking showers and using kitchens. The rain also 19 wastewater when it is running down the street during a storm. No matter where it comes from, this kind of water is sure to have 20 harmful in it.
21 must we treat(处理) wastewater Waste-water has a big influence on our lives. It causes both illness for us and pollution for the environment. We must care for our environment and our own 22 .
How can we treat wastewater Different kinds of wastewater need different ways of treatment. Wastewater 23 homes can be reused. Then there will be 24 wastewater. Also, factory wastewater has to be cleaned 25 it goes back to nature.
( )16.A.drink B.save C.carry D.watch
( )17.A.easy B.popular C.small D.serious
( )18.A.factories B.lakes C.rivers D.seas
( )19.A.gets back B.hands in C.changes into D.picks up
( )20.A.nothing B.something C.nobody D.somebody
( )21.A.What B.Who C.Why D.How
( )22.A.work B.interest C.health D.business
( )23.A.on B.for C.with D.from
( )24.A.less B.more C.better D.worse
( )25.A.and B.whether C.after D.before
五、阅读理解
When Sally was a child, she went to the city park with her mom on a sunny morning. She felt very unhappy. Her mom saw that and asked why. Sally told her mother that she felt so sorry to see so much rubbish on the ground.
Her mom looked around. There were pieces of paper, boxes, glass bottles and a lot of other rubbish everywhere. “What can we do ” asked Sally sadly. “I'm sure you will think of something,” said her mom.
As soon as Sally got home with her mom, she painted a picture of the park and wrote a sign in large black letters at the top of the picture. The sign said, “PLEASE KEEP OUR PARK CLEAN”. Later, she took plenty of bags and went back to the park with her mom. Sally put up her picture on a big rubbish box.
The children at the park ran over to see what was going on. Sally handed each of them a bag. “Let's clean up this place,” said Sally. Then they began to pick up the rubbish, talking and laughing. Soon, all the bags were full.
Then Sally's mom led them to put the rubbish into different kinds of rubbish boxes. When they looked at the clean park, they all had a strong feeling of satisfaction.
From then on, Sally has been keeping doing the cleaning and sorting(分类) rubbish. More and more people joined her to play a part in environmental protection.
( )26.Why was Sally unhappy
A.Because she couldn't find her mom. B.Because her friends were not at the park.
C.Because there was too much rubbish. D.Because the park was too crowded.
( )27.Sally drew the picture to .
A.show off her painting skills B.encourage people to keep the park clean
C.give her mom a big surprise D.show people how beautiful the park was
( )28.What did the children do at the park when they saw Sally put up her picture
A.They laughed at Sally. B.They spent a terrible and tiring day.
C.They bought some bags from Sally. D.They joined Sally in picking up the rubbish.
( )29.How do you like Sally
A.Warm-hearted. B.Brave. C.Hard-working. D.Lazy.
( )30.What's the best title for the text
A.A beautiful park B.Sally and her mom C.A clean-up story D.How to clean the park
六、语法填空
Shaoshan is a famous city, the hometown of Chairman (主席) Mao Zedong. Heonce lived, studied, and 31_______(work) here. Shaoshan is a comfortable place with flowers blooming(开花) and birds singing all year round. Shaoshan is a place 32_______ is almost in the middle of Hunan, about 40 kilometers from Xiangtan City and 100 kilometers from Changsha City.
As the high-speed trains are available, more and more people come here 33______ train. For example, it only 34_______(take) less than half an hour from Changsha City to Shaoshan. Others still want 35_________(drive) here with families or friends. lf people come here on December 26th, it will be the 36______(good)time. On that day there are a lot of celebrations, because it’s Chairman Mao’s birthday.
37________(Visitor) from all over the country come here to show their respect. They also look forward to 38_________(watch)The Most Memorable Shaoshan《《最忆韶山冲》), which can help them better understand Chairman Mao. They will be deeply moved and encouraged. Besides, it is not only 39_______good place for students to have school trips, but also an education base for 40_______(they)to learn aboutthe history of the Communist Party of China(中国共产党).
_________ 32._________ 33._________ 34._________ 35._________
36._________ 37._________ 38._________ 39._________ 40._________
Unit 13 Section A 1a-2d 学案 (知识精讲+分层作业)参考答案
一、单项选择
1-5DBCBA
二、用所给单词的适当形式填空
6.littering 7.to have 8.badly 9.playing 10.to throw
三、完成句子
11. cut down water pollution 12. make a difference
13. is full/filled of/with 14. turned into 15. played a part/role in saving
完形填空
16-20 BDACB 21-25 CCDAD
阅读理解
26-30 CBDAC
语法填空
31.worked 32.that/which 33.by 34. takes 35.to drive
36. best 37.Visitors 38.watching 39.a 40.them
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