(共56张PPT)
人教版 九年级全册同步课件
Unit 13
We are trying to save the earth!
Section A 1a-2d
To talk about air pollution, water pollution and noise pollution.
To think about ways of protecting the environment.
To learn to use the sentence patterns
used to...but now
should do sth.
Objects:
Lead in:
What do you think of our earth
Presentation:
Will it be so beautiful in the future
The earth is polluted.
What kind of pollution can you see in the video
pollution
water pollution
noise pollution
air pollution
land pollution
Do you know the different kinds of pollution
n. 炭煤
air pollution
The factories
burn coal , and
the black
smoke pollutes
the air
Factories put waste into the river.
water pollution
People pour rubbish into the river.
noise pollution
There are more
cars in the neighborhood.
air pollution
Beijing is full of haze.
litter v. 乱扔
n. 垃圾
Rubbish， waste
垃圾，废弃物
People should throw away litter in the bin.
n. 垃圾箱
land pollution
Because of pollution, the water isn’t clean any more.
Because of pollution, our sky isn’t blue any more.
Because of pollution, more and more people suffer from cancer.
Because of pollution, more and more animals lose their lives and homes.
Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.
1a
noise pollution
____________
____________
____________
____________
air pollution
___________
___________
___________
___________
water pollution
____________
____________
____________
____________
loud music
planes
mobile phones
factories
cars
smoking
ships
factories
littering
rubbish
building houses
building houses
loud music cars rubbish planes
littering ships factories smoking
building houses mobile phones
cars
What kind of pollution are Tony and Mark talking about __________________
Water pollution
Listen and answer the question:
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
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
Listen again and answer the following questions.
What does Tony want to do later this afternoon
He wants to go swimming with Mark in the
river later this afternoon.
2. Why doesn’t Mark want to go with Tony
Because 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.
3. How was the river in the past
It used to be so clean. It has been the nicest
river in this town.
Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.
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 littering in the river.
Everyone in this town should play a part in cleaning it up!
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
land pollution B. air pollution
C. noise pollution D. water pollution
2a
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.
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.
more cars
pollute
2b
are throwing away
public places
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…
Use the information in 2a and 2b to role-play conversations between Jason and Susan.
2c
What should we do to save the earth
Turn off the lights when you leave a room.
Stop riding in cars.
Stop using paper towels or napkins. n. 餐巾, 餐巾纸
Recycle books and paper.
v. 回收利用; 再利用
stop using paper towels or napkins n. 餐巾, 餐巾纸
Problems Solving problems
air pollution
waste pollution
take the bus, subway or ride a bike instead of driving
bring a bag to go shopping
use chopsticks or forks at home
hrow rubbish in the bins
Read the conversation and complete the chart.
2d
Well, to cut down air pollution, we should take the bus or subway instead of driving.
Yeah, of ride a bike. There are other....
Great ideas! ...
Role-play the conversation.
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 努力去做某事
e.g. We’ll try to help him with English this year.
我们今年将努力帮助他学习英语。
Summary:
2. Everyone in this town should play a part in cleaning it up!
play a part in 在……方面起作用
Reading will play a large part in writing and speaking, so just read more in your spare time.
阅读将在写作和口语汇中发挥很大作用， 所以业余时间你就大量读书吧。
3. Even the bottom of the river was full of rubbish.
Yes, but people are throwing litter into the river.
litter和rubbish都可指“垃圾”，用作不可数名词。
litter指“（室内或公共场所）乱扔的废物（纸屑、不要的包装纸、废瓶等）”还可回收。
rubbish指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。
e.g. Don’t worry, I will throw the rubbish out when I go home.
别担心，我回家时会把垃圾扔出去。
Your room is full of rubbish. How can you stand that
你房间里堆满了垃圾。你怎么能够忍受？
Let’s pick up our litter after a picnic.
野餐后咱们将废弃物收拾好。
4. 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。
e.g. The new shirt cost Mr Wang 200 yuan.
王先生花了200元买了新衬衫。
How much does your new computer cost
你的新电脑花了多少钱？
take, spend, pay & cost
take，spend，pay和cost都可以表示“花费”，
但它们的用法各有不同。
take多表示花费时间
常用于It takes sb. some time to do sth.句型中，
其中it作形式主语。
e.g. It usually takes me 40 minutes to go to work on foot in the morning.
spend多表示花费时间和金钱，主语常是人，
常用于sb. spend(s) some time / money on sth.
sb. spend(s) some time / money (in) doing sth.
两种句型。
e.g. David spent 2,000 yuan on a watch.
My father spends an hour (in) playing games with my little brother every day.
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. David paid 2,000 yuan for a watch.
cost多表示花费金钱，主语通常是物，常用于sth.
cost(s) (sb.) some money.句型。
e.g. The new dress cost me 188 yuan.
根据句意用take, spend, pay或cost的适当形式填空。
1. That new car ________ them lots of money.
2. Mike __________ 50 yuan on these books just now.
3. It usually _______ us an hour to do homework every evening.
cost
spent
takes
【运用】
4. You should __________ some time learning English and math.
5. My brother _______ 6, 000 yuan for a second hand car last week.
spend
paid
5. So together, our actions can make a difference and lead to a better future!
make a difference (to…)
表示(对……)产生影响或作用
e.g. Learning English well can make a difference to your future.
学好英语会对你的前途有影响。
bin, cost, coal, fisherman, take away
1. A hot ________ fell out of the fire and burnt the
carpet (地毯).
2. A __________ is hot cooked food that you buy from
a shop or restaurant and eat somewhere else.
coal
takeaway
Ⅰ.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。
Exercises:
3. Do you want this or shall I throw it in the
________
4. Writing such a long novel ________ much
time and patience.
5. Look! Some ____________ are catching fish
over there.
costs
fishermen
bin
Ⅱ.根据汉语意思完成英语句子。
1. 工人们正在竭尽全力降低事故率。
The workers are doing all they can ___________
the accident rate.
2. 左边第二个房间里堆满了书。
The second room on the left is _________________
books.
to cut down
full of / filled with
3. 你应该向那些参与挽救病人的医生道谢。
You should say thanks to those doctors who
have _________________ saving the patient.
played a part in
4. 拉里将去开会，而不是我。
Larry will go to the meeting __________ me.
instead of
5. 我的目的是把这件坏事变成好事。
My purpose is to ________ this bad thing
________ a good one.
6. 保持教室干净是我们的责任。
It’s our duty to ________ the classroom
_______.
turn
keep
into
clean
7. 我们小区的噪音污染很严重。
The _________________ in our neighborhood
is very serious.
noise pollution
Ⅲ.汉译英。
我尽量今天晚上看完这本书。
他在足球赛中其重要作用。
I will try to finish the book this evening.
He plays an important part in the soccer match.
Many jobs require people who are good at English. If your English is good, you will have one more ______ when searching for jobs.
method B. interest
C. advantage D. examination
中考链接
句意为“很多工作要求擅长英语的人。如果你的英语很好，在找工作的时候会拥有又一个优点。”
方法
优点
兴趣
考试
—The teenagers clean up the city park every
Saturday.
—Sometimes small things can make a _______.
A. promise B. conversation
C. difference D. discussion
中考链接
句意为“那些青少年每周六都打扫城市公园。有时候一些小事也会产生（好的）影响。”
承诺
不同
对话
讨论
Homework:
完成课前预习及课后跟踪练习。
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Unit 13 We're trying to save the earth!
Section A 1a-2d教学设计
Class Type Listening and speaking
Objectives To talk about air pollution, water pollution and noise pollution.To think about ways of protecting the environment.To learn to use the sentence patterns:used to...but now; should do sth.
Period 1
Procedure
Lead-in Watch a short video, and talk about what students think of our earth.
Step 1 Presentation:Watch a short video and try to answer: Will it be so beautiful in the future From the video, let students know that the earth is polluted.Watch the third video and answer:What kind of pollution can you see in the video Do you know the different kinds of pollution pollutionwater pollutionair pollutionnoise pollutionland pollutionLead students to talk about reasons caused four kinds of pollution above by presenting pictures. And talk about the results of pollution.Activity 1a: Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.Listen and answer the question:What kind of pollution are Tony and Mark talking about __________________Activity 1b: Listen and complete the sentences.Listen again and answer the following questions.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 Activity 1c: Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.Activity 2a: Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.Activity 2b: Listen again and complete the sentences.Activity 2c: Use the information in 2a and 2b to role-play conversations between Jason and Susan.After listening, students think about what we should do to save the earth by looking at some pictures carefully.Activity 2d: Read the conversation and complete the chart.ProblemsSolving problemsair pollutionwaste pollutionThen role-play the conversation.
Step 2 Summary: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 努力去做某事e.g. We’ll try to help him with English this year. 我们今年将努力帮助他学习英语。2. Everyone in this town should play a part in cleaning it up!play a part in 在……方面起作用 Reading will play a large part in writing and speaking, so just read more in your spare time.阅读将在写作和口语汇中发挥很大作用， 所以业余时间你就大量读书吧。3. Even the bottom of the river was full of rubbish. Yes, but people are throwing litter into the river.litter和rubbish都可指“垃圾”，用作不可数名词。litter指“（室内或公共场所）乱扔的废物（纸屑、不要的包装纸、废瓶等）”还可回收。rubbish指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。e.g. Don’t worry, I will throw the rubbish out when I go home. 别担心，我回家时会把垃圾扔出去。 Your room is full of rubbish. How can you stand that 你房间里堆满了垃圾。你怎么能够忍受？ Let’s pick up our litter after a picnic. 野餐后咱们将废弃物收拾好。4. 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。e.g. The new shirt cost Mr Wang 200 yuan. 王先生花了200元买了新衬衫。 How much does your new computer cost 你的新电脑花了多少钱？take, spend, pay & costtake，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。take多表示花费时间常用于It takes sb. some time to do sth.句型中，其中it作形式主语。e.g. It usually takes me 40 minutes to go to work on foot in the morning.spend多表示花费时间和金钱，主语常是人，常用于sb. spend(s) some time / money on sth.sb. spend(s) some time / money (in) doing sth.两种句型。e.g. David spent 2,000 yuan on a watch. My father spends an hour (in) playing games with my little brother every day.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. David paid 2,000 yuan for a watch.cost多表示花费金钱，主语通常是物，常用于sth. cost(s) (sb.) some money.句型。e.g. The new dress cost me 188 yuan.根据句意用take, spend, pay或cost的适当形式填空。1. That new car ________ them lots of money.2. Mike __________ 50 yuan on these books just now.3. It usually _______ us an hour to do homework every evening.4. You should __________ some time learning English and math.5. My brother _______ 6, 000 yuan for a second hand car last week. 5. So together, our actions can make a difference and lead to a better future! make a difference (to…) 表示(对……)产生影响或作用 e.g. Learning English well can make a difference to your future. 学好英语会对你的前途有影响。
Step 3 Exercises:Ⅰ.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。bin, cost, coal, fisherman, take away1. A hot ________ fell out of the fire and burnt the carpet (地毯).2. A __________ is hot cooked food that you buy from a shop or restaurant and eat somewhere else.3. Do you want this or shall I throw it in the ________ 4. Writing such a long novel ________ much time and patience. 5. Look! Some ____________ are catching fish over there.Ⅱ.根据汉语意思完成英语句子。1. 工人们正在竭尽全力降低事故率。 The workers are doing all they can ___________ the accident rate.2. 左边第二个房间里堆满了书。 The second room on the left is _________________books.3. 你应该向那些参与挽救病人的医生道谢。 You should say thanks to those doctors who have _________________ saving the patient.4. 拉里将去开会，而不是我。 Larry will go to the meeting __________ me.5. 我的目的是把这件坏事变成好事。 My purpose is to ________ this bad thing ________ a good one.6. 保持教室干净是我们的责任。 It’s our duty to ________ the classroom_______.7. 我们小区的噪音污染很严重。 The _________________ in our neighborhood is very serious.Ⅲ.汉译英。我尽量今天晚上看完这本书。他在足球赛中其重要作用。中考链接:Many jobs require people who are good at English. If your English is good, you will have one more ______ when searching for jobs. method B. interest C. advantage D. examination2. —The teenagers clean up the city park every Saturday.—Sometimes small things can make a _______. A. promise B. conversation C. difference D. discussion
Step 4 Homework: 完成课前预习与课后跟踪练习。
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Unit 13 We're trying to save the earth!
Section A 1a-2d课前预习
[课型]听说课
学习目标
To talk about air pollution, water pollution and noise pollution.
To think about ways of protecting the environment.
To learn to use the sentence patterns:used to...but now; should do sth.
课前预习
一、熟读下列单词
litter/'l t (r)/v.乱扔n.垃圾；废弃物
bottom /'b t m/, /'bɑ t m/n.底部；最下部
fisherman/'f (r)m n/ n.渔民；钓鱼的人
coal/k l/n.煤；煤块
ugly/' gl /adj.丑陋的；难看的
advantage / d'vɑ nt d /, / d'v nt d / n.优点；有利条件
cost/k st/,/kɑ st/v.(cost,cost)花n.花费；价钱
wooden/'w dn/adj.木制的；木头
plastic/'pl st k/ adj.塑料的n.塑料；塑胶
takeaway/'te k we / n.外卖食物
bin/b n/n.垃圾箱
二、写出下列动词的现在分词
1.try-_______
2.save-_______
3.litter-_______
4.smoke-_______
5.build-________
6.throw-_______
7.ask-_______
8.close-_______
9.help-_______
10.clean-________
11.use-________
12.play-________
13.pollute-________
14.turn-_______
15.solve-_______
16.cut-_______
17.take-______
18.drive-_______
19.ride-_______
20.bring-______
21.shop-_______
22.do-_______
23.start-_______
24.buy-_______
25.keep-_______
26.make-_______
27.lead-_______
28.listen-_______
三．词形变换。
1.渔民；钓鱼的人 n. ________ →(复数)________
2.丑陋的；难看的 adj. ________→(反义词)漂亮的；美丽的 adj. ______________
3.优点；有利条件 n. ________→(反义词)缺点；不利条件 n. _________
4.木制的；木头的 adj. ________→(同根词)木头；木材 n. ________
5.有害的 adj. ________ →(同根词)危害；损害 n. 伤害 v. ________ →(反义词)无害的；没有害处的 adj. ________
6.科学上的；科学的 adj. ________→(同根词)科学 n. ________
四．短语互译。
1. 起作用；有影响 _____________
2.参加 ____________
3.关掉 ____________
4.付费；付出代价 _________
5.充满 ____________
6.打扫，清理 ____________
7.在……中起作用 ____________
8.减少；砍伐 ____________
9.代替；而不是 ____________
10.到目前为止 ____________
11.引导；导致 ____________
12.采取行动 ____________
13.at the top of… ______________
14.cut off __________
15.be harmful to… ____________
16.in danger ____________
五．根据句意用take,spend,pay或cost的适当形式填空。
1.This house______________us lots of money.
2.My mother______________300 yuan on her new dress.
3.It usually_______________me 15 minutes to walk home from my office.
4.It is worth___________some time taking exercise every day.
5.I_____________1,000 yuan for the new bike yesterday.
六. 用动词的适当形式填空.
1.The river used to__________(be) really clean.
2.There are no more fish for___________to catch (fisherman).
3.Everyone should play a part in____________(clean) it up!
4.Using______________(wood) chopsticks is bad for the environment.
5.There are other___________(advantage) of bike riding.
6.People are_______________(throw) litter into the river.
参考答案：
二、写出下列动词的现在分词
1.trying
2.saving
3.littering
4.smoking
5.building
6.throwing
7.asking
8.closing
9.helping
10.cleaning
11.using
12.playing
13.polluting
14.turning
15.solving
16.cutting
17.taking
18.driving
19.riding
20.bringing
28.shopping
29.doing
30.starting
31.buying
32.keeping
33.making
34.leading
28.listening
三．词形变换。
1. fisherman；fishermen
2. ugly; pretty/beautiful
3. advantage; disadvantage
4. wooden; wood
5. harmful; harm; harmless
6. scientific; science
四．短语互译。
1. make a difference
2. take part in
3. turn off
4. pay for
5. be full of
6. clean up
7. play a part in…
8. cut down
9. instead of
10. so far
11. lead to
12. take action
13. 在……顶部或顶端
14. 切除
15. 对……有害
16. 处于危险中
五. 根据句意用take,spend,pay或cost的适当形式填空。
1.cost 2.spent 3.takes 4.spending 5.paid
六. 用动词的适当形式填空.
1.be 2.fishermen 3.cleaning 4.wooden 5.advantages 6.throwing
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Unit 13 We're trying to save the earth!
Section A 1a-2d课后跟踪练习
Ⅰ.根据句意及汉语提示写出所缺的单词。
1.Bike riding has more _________(优点) than disadvantages.
2.There is much rubbish at the ________(底部) of the river.
3.There is a ________(木制的) box on the table.
4.The bike is very expensive for me. It will ________(花费) me about six hundred yuan.
5.Don't laugh at the ________(难看的) picture. After all, it was painted by a four year old boy.
6.My uncle is a ________(渔民) and he goes fishing every day.
7.We should use fewer ________(塑料的) bags in order to protect the environment.
8.Nylon is made from air, ________(煤) and water.
II. 用括号中所给单词的适当形式填空.
1. This method can make a ________ (different) in our life.
2. The lake is dirty. But it used to _____ (be) very clean.
3. The air is ________ (bad) polluted because there are too many cars now.
4. We can take the bus instead of ________ (drive) the car.
5. Remember ________(throw) rubbish in the bins and keep public places clean and beautiful.
Ⅲ.从方框中选出合适的短语，并用其适当形式填空。
lay a part, be good for, make a difference，too much, lead to
1.I'm sure your action will __________ a better future.
2.Everyone should ________________ in cleaning up the city park.
3.You should eat more fruit and vegetables. They ________________ your health.
4.Your actions can ________________ in your life.
5 .There is ________________ rubbish and waste on the ground.
Ⅳ.根据汉语意思完成句子。
1.当地政府号召每个人参加这项活动。
The local government called on everybody to ______ ______ ______ the activity.
2.他说他能够自己解决这个问题。
He said he ________ ________ ________ solve the problem by himself.
3 .我更愿意待在家里看电视，而不是跟朋友出去闲逛。
________ ________ hanging out with friends, I prefer to watch TV at home.
4 .这座城市的每一个人都应该在保护环境方面出一份力。
Everyone in the city should ______ ______ _______ ______ ______ the environment.
5.种植更多的树可以减少空气污染。
Planting more trees can ________ ________ ________ ________.
VI. 单项选择
( )1. Don't take the dictionary away. I ________ it.
A.use B. used C. am using D. have used
( )2. Remember ________ some fruit when you come back.
A.buying B. to buy C. buy D. bought
( )3.—It will ________ only about 50 minutes to travel to Mount Wuyi by high speed railway.
—Wow, how exciting! I can't wait.
A.take B. Spend C. cost D. pay
( )4. Many volunteers will help to ________ the city parks next Friday.
A.give up B .pick up C. clean up D. turn up
( )5.The local government is going to take some measures to protect the environment. For example, we mustn't ________ too many trees.
A.write down B. cut down C. take down D. put down
VII. 补全对话(方框中有两个多余选项)。
W: Good evening, Ted! Tell our listeners what you do, please.
M: Good evening! I help collect rubbish along the Zhou River with other members of our volunteer team.
W: That's great! 1.________
M: As you see, the Zhou River is our mother river. It provides us with clear water. 2.________
W: I agree with you. 3.________
M: Um… 10 girls and 15 boys.
W: When do you do this work
M: We live near the river. 4.________. And when we see the rubbish, we collect it.
W: 5.________
M: Yeah, I think so.
A. In cities, pollution is mainly from factories.B. How many members do you have in the team C. It's good for your health and the environment, isn't it D. How did you come up with the idea E. What about rubbish pollution F. We don't want it to be polluted.G. After dinner every evening, we take a long walk along the side of the river.
参考答案：
Ⅰ.根据句意及汉语提示写出所缺的单词。
1. advantages
2. bottom
3. wooden
4. cost
5. ugly
6. fisherman
7. plastic
8. coal
Ⅱ.用括号中所给单词的适当形式填空。
1.difference
2.be
3.badly
4.driving
5.to throw
Ⅲ.从方框中选出合适的短语，并用其适当形式填空。
1.lead to
2.play a part
3.are good for
4.make a difference
5.too much
Ⅳ.根据汉语意思完成句子。
1.take part in
2.was able to
3.instead of
4.play a part in protecting
5.cut down air pollution
VI. 单项选择
1-5 C B A C B
VII. 补全对话(方框中有两个多余选项)。
1-5 D F B G C
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