课件41张PPT。九年级上册12Save our worldModuleUnit 1
If everyone starts to do something, the world will be saved.Talk about the pictures. Warm up 制造厂；工厂 n.waste敌人；仇人 n. crop庄稼；作物 n. recycle回收利用；再使用(废品) v. pollute污染 v./'en?m?/ /kr?p/ /'f?ktr?/New words and expressionsfactory/p?'lu:t/ /ri:'sa?kl/废料，废弃物 n./weist/ enemykill杀死；弄死 v. /k?l/oil石油 n./??l/lesshopeless较小的；较少的 adj.
较少数；叫少量 n.无望的 adj./les//'h??pl?s/factory制造厂；工厂 pollute污染recycle
回收利用；再使用(废品)The waste can be used.
废弃物也能够被使用。 crop
庄稼；作物waste废料，废弃物 enemy敌人；仇人 复数：enemies
Don’t make an enemy of him. 不要与他为敌。oil石油作“石油”讲时，是不可数名词。
The country is rich in oil and coal.
这个国家石油和煤很丰富。Work in pairs. Look at the pictures and talk about them. Use the words in the box to help you.factory, pollute, recycle, wasteListening and vocabularyAir has been polluted because factories produce electricity and energy for human being every day.A large numbers of metal cans are thrown away everywhere. We waste a great deal of metal2. Listen and complete the sentences.1. The factory is causing a lot of___________.
2. There should be some________ to stop
pollution.
3. We can_________ waste products, such as
__________and paper in a recycling centre.pollutionrulesrecycleglassWatch and read3. Listen and read.Lingling: After our lesson on the environment,
I’m worried about the future. Pollution is
our great enemy, and we have to fight it. If the
rivers are polluted, farmers can’t use
water for their crops.
Tony: And in some places, pollution from
factories spreads over cities and villages. It
makes people ill, and may even kills them.
Pollution is a danger to our health.
Betty: And there’re so many cars on the road. They use so much oil and cause pollution as
well.
Daming: But we are only students. We can’t do
anything about factories and cars.
Betty: It’s no use talking about things we can’t
do. We’ve got to think of things we can do!
Daming: Such as…?
Lingling: Do you think we can make our school
a green school?
Daming: What’s a green school?
Lingling: At a green school, every class collects waste or rubbish which can be recycled or
used again. Then the school sells the waste
and uses the money to help students in
poor areas.
Daming: Nice idea!
Betty: Students at a green school also learn
ways to save energy and recycle at home. That
means less waste.
Tony: That’s a good idea. Though pollution is
heavy now, I don’t think it’s hopeless. If
everyone starts to do something, the world will
be saved.Language points1. And in some places, pollution from
factories spreads over cities and villages.在一些地方， 来自工厂的污染遍布城市和村庄。spreads over遍布在..., 复盖在...
What he studied spread over many fields.
他所研究的内容涉及许多领域。2. Pollution is a danger to our health.
污染有害我们的健康。a danger to…“对…是一种威胁；有伤害”，
相当于be dangerous to
It?is?a?danger?to?your?computer's?health.?
=It?is?dangerous?to?your?computer's?health.?
这对你电脑的健康是个威胁。3. And there’re so many cars in the street.
They use so much oil…
街道上有很多车，他们使用很多石油…so many很多
You can’t crush so many people into the classroom.你不能让这么多人挤进教室。so much很多辨析：so many与so much
so many 用来修饰可数名词， so much 用来修饰不可数名词。There was so much noise outside that we
couldn’t hear the teacher.
外面嘈杂声很大， 以致我们不能听到老师的话。
He feels nervous when her faces so many people.
面对那么多人， 他感到紧张。4. as well 也；又(1). 相当于too或also, 常位于句末，无须用逗号与句子隔开。拓展：I am going to London and my sister is going to as well.
我要去伦敦， 我妹妹也去。(2).as well 在口语中也可置于句中， 作“也好，
也行”或“倒不如”解。用来缓和语气。
You may as well go.你去也好。(3). As well 也可以直接用于just之后， 用作应答
语。可视为(It’s just as well)的省略。作“幸亏，
幸而，无妨， 没关系”讲。
-We are too late to see the film.
- Just as well, I hear it isn’t very good.5. Such as …？例如……
such as 表示举例，意为“例如，诸如
此类的，像……那样的”，相当于like
或 for example。 Animals such as rabbits and deer continue to
be active all winter.
像兔和鹿这样的动物整个冬天都很活跃。
There are few poets such as Keats and Shelly. 像济慈和雪莱这样的诗人现在很少了。6. That means less waste.(1). less 较小的，较少的； 较少数，较小量1). less 是 little(小；少)的比较级。
He spends less time (in) doing experiments.
他做实验花的时间较少。2). “less+形容词或副词”构成比较， 译为“较不，更不”。
It is less cold than it was yesterday.
天气不如昨天冷。3). Less作名词时， 表示“较小量，较少量”
Less than ten of the thermometers remain.
这些温度计剩下不到十支。4). less 作介词时， 译为“不足， 还差”
Five less two leaves three. 五减去二余三。
The time cycle is a year less three days.
(时间)周期是差三天一年。7. I don’t think it’s hopeless.
我不认为它是没有希望的.hope可做名词和动词， 表示“希望”(1). 用于表示可能实现的事情， 后接从句，
用陈述语气。
I hope I shall see him again. 我希望再见他一次。(2). Hope 多用于指多好事物的盼望， 预想； 对
坏事物的预想多用I am afraid…
I hope it will be fine tomorrow.
我希望明天天气好。(3). hope 所希望的一般指将来或现在的事情，
不指过去的事情。
I hope he will come. 我希望他会来。 (4). Hope 可用于 hope to do 结构， 但不能说
hope sb. to do sth.
I hope to watch the football match again.
我希望再看一次那场足球赛。1. at a green school
在环保学校
2. collect waste
收集废品
3. sell the waste
卖废弃物
4. in poor areas
在贫穷地区
5. learn ways to
学习…的方法Important Phrases6. Save money and recycle
节约钱并回收
7. start to do something
开始做些某事Now complete the notes.Pollution ProblemsIf the rivers are polluted,_____________
_____________________________.
2. In some places, pollution from factories _________________________________ .
3. The cars on the road__________________
_____________________________ .use water for their cropsfarmers can’tspreads over cities and villagescause pollution as welluse so much oil andWhat the students can do?4. Support a green school: every class _______________________which can be_______________________. Then the school _______________________________to help students__________________.
5. Students learn________________________
_________________. That means__________.collects waste or rubbish recycled or used againthe school sells the wastein poor areasways to save energy andrecycle at homeless wasteEveryday EnglishIt’s no use…
Such as…?
Nice idea!4. Complete the passage with the correct form
of the words in the box.cause, enemy, factory, kill, oil, pollute, spread Pollution is our great (1)________. Pollution from (2)____________is a danger to our health, and may even (3)____people. Factories sometimes(4)________ rivers, and farmers cannot use the water for their crops. Pollution
(5)________ over cities and villages, and that (6)______ even more danger. Cars use a lot of (7)_____and cause pollution too.enemyfactorieskillpollutespreadcausesoil5. Listen and mark the words which the
speaker links.After our lesson on the environment, I’m
worried about the future.
2. Students at a green school also learn ways to save energy and recycle at home.Now listen again and repeat.Pronunciation and speaking6. Work in pairs. List the pollution in your place.
Choose one problem and say what should be done
about it.The air pollution in our
city is getting worse. What can we do to stop it?
- I think we can ride our bicycles to school more .—The water are polluted, farmers can’t use them to water their crops .We should stop the factories from polluting the river.
— I agree. And we should stop them
from polluting the air as well. SampleExercises一. 根据句意及首字母提示完成单词。1. Don’t w_____ water. Please turn off the cock
after you wash your hand.
2. I get a job in a f_________.
3. It’s more and more important for every to
save e__________ now.
4. Air p_______ is quite harmful to our health.
5. The students from a green school are
helping collect waste paper and bottles for
r_______.asteactorylectricityollutionecycling二. 用所给单词的适当形式填空。We should give up those __________(waste) habit in order to save our world.
2. Some factories________ (cause) pollution.
3. I think ______________(environment)
education for kids is necessary.
4. Most students on our school often collect
________(reuse) waste for recycling.
5. If we don’t look after our earth well, the future will be _________.(hope)
wastefulcauseenvironmentalreusablehopeless三. 根据汉语意思完成英语句子。1. 每个人都应该关心自己的健康。Everyone should ______ _______ _________ his health.2. 来自该市的很多人都决心节约用水。______ _______ people from the city made up their mind to save water.becarefulabout/ofSomanyMike likes drinks_____ ______ milk tea and cola.4. 应该谈谈我们的事情。3. 迈克喜欢奶茶和可乐之类的饮料。We should ____ _____ what we can do.suchastalkaboutHomeworkFinish the exercises in the workbook.课件50张PPT。九年级上册12Save our worldModuleUnit 2
Repeat these three words daily:
reduce, reuse and recycle.1. at a green school
在环保学校
2. collect waste
收集废品
3. sell the waste
卖废弃物
4. in poor areas
在贫穷地区
5. learn ways to
学习…的方法6. Save money and recycle
节约钱并回收
7. start to do something
开始做些某事RevisionThe beautiful earth is our home.
Do you love to live here?Warm up Green environmentCan you imagine that this is the water
they drink every day?Water pollutionAir pollutionWood cuttinggarbagedeforestationdesertificationstarvationmost serious
problemsIt’s better for people to buy local products than products from abroad because it wastes energy to bring foreign products to China.local productsproducts from abroadLook at the pictures. Say which things are better for the environment and why.Reducechina cup
lunch box paper cup
paper box It’s better to use a reusable box and
china cup instead of paper box and cup because they can be used again. Paper
cups can only be used once and have
to be thrown away.ReuserecycleIt’s much better to recycle used things than to burn them. In this way, we can use less energy; also, burning pollutes the air.burnRecycle瓷器 n.policy再次使用；重复利用 v. bottle瓶 n. plastic塑料 n.
塑料的 adj.divide分开 v./ri:'ju:z / /'b?tl/ /'t?a?n?/New words and expressionschina/d?'va?d/ /'pl?st?k/政策；方针 n./'p?l?s?/ reuse丢掉；丢弃cloth吨 n. tons of许多；很多 reduce减少；降低；缩小 v.repeat重说；重新做 v./t?n/ throw away/r?'pi:t / /r?'dju:s /布；布料 n./kl?θ/ ton橡胶 n.step(外)孙子 n. granddaughter(外)孙女 n. rapid快速的；迅速的 adj.recycling回收利用 n./'gr?ns?n/ rubber/ri:'sa?kl??/ /'r?p?d/步骤；措施 n./step/ grandson/'r?b?/ /'gr?nd?:t?/ china瓷器 plastic塑料bottle瓶 throw away丢掉；丢弃cloth布；布料 Look at the pictures on the next page. Say which ways are good
for the environment and why.Reading and vocabularyIt’s better to use a reusable bowl and china cup instead of paper box and cup because they can be used again. Paper cups can only be used once and have to be thrown away.It’s better to divide the rubbish, rather than throw them into river because it may pollute the environment and do harm to our health.2. Look at the title of the passage. What
suggestions do you think the passage
will make? Use the words in the box to help
you.china, divide, necessary, plastic, policy, reuse, It is better to use china cups and bowls because
they can be used many times.It’s better to use a plastic lunch box and a china cup because you can use them again. Watch and read3. Read the passage and answer the
questions in the first part.How to be greenBy Wang Lingling How green are you? Answer these questions and find out.
● Do you walk or ride a bike to school?
● Do you buy new clothes just because they
are modern?
● Do you turn off the lights when you
leave the room?● Do you take your own bag when shopping
and not ask for a plastic bag?
● Do you buy drinks in bottles? And
what do you do with the bottles when they
are empty?
● Do you divide the waste into things to recycle
and things to throw away?
We all need a healthy environment, but we produce waste every day, and it is harmful to our environment. Repeat these three words daily: reduce, reuse and recycle.Reduce
Reduce means “use less”. Do not waste things. It saves money and causes less pollution. Do not order more food than you can finish. Turn off the lights when you do not need them. Before you buy something new, think whether it is really necessary, because maybe the old one is
just as good!
Reuse
Reuse means “use again”. Use things for as long as possible. Look after them so that
they will last. Repair them if possible. Donot throw them away and buy new ones. Do not use paper cups or paper bags. It is better to use china cups and cloth bags because they can be used many times.
Recycle
Recycle means “change things into something else to be reused”. Although it takes energy to change things into something else, it is better than throwing things away or burning them. We throw tons of rubbish away each year, and we have to stop. Divide your rubbishinto plastic, glass, paper and rubber. Develop a
recycling policy for the whole community.
Buy products such as recycled paper to
help save trees.
We cannot hope for rapid change, but let’s take these simple steps today so that we will save the world for our grandsons and granddaughters tomorrow.Language points1. Do you divide the waste into things to recycle
and things to throw away?
你将废品整理回收或者扔掉呢？(1). divide分开，分离
It will be the easiest way if we divide them into
groups.
如果我们将它分成小组将是最简单的拓展：
1). divide in …half 把…分成两份。(2). throw away丢掉丢弃
When are you going to throw away those
magazines?
你打算什么时候丢掉这些就杂志？Divide the pastry in half and roll out each piece.
那油酥面团一分为二，再分别擀成面皮2). divide …between/among sb. 在…之间分配…
Let’s divide the cake between/among us.
我们把这块蛋糕分了吃吧。2. …but we produce waste every day.
但是我们每天生产垃圾。★everyday (adj.) 每天的，每日的
★every day (adv.) 在句中作状语
Computers are part of our everyday life.
现在电脑已经是日常生活的一部分了。
She reads English aloud every day.
她每天都大声朗读英语。3.reduce
(1). 减少;缩小;降低
He is trying to reduce expenses.
他正试图减少开支。
(2). 使处于(某种状态);使化为,使变为 [(+to)]
The fire reduced the paintings to ashes.
大火将这些画烧成了灰烬。4. …and it is harmful to our environment.
对我们的环境有害。be harmful to对…有害
Fruit juices can?be harmful to?children's teeth. 果汁可能损坏儿童的牙齿。 拓展： do harm to 对……有害
The trials show that smoking will do harm to people.试验显示抽烟对人体有害。do good to 对……有好处
Exercise will do good to your health. 锻炼将对你的健康有益。5. Before you buy something new, think whether it is really necessary.
在你买新东西以前，先想一下它是否有用。necessary a.
(1). 必要的,必需的[(+for/to)]
Oxygen is necessary for life.
氧气是生命所必需的。
(2). 必然的,无法避免的
Poor health is a necessary result of over-exertion.
体弱是过度劳累的必然结果。6. Use things for as long as possible.
尽可能长时间去使用这些东西。★ as …as 和……一样
Flowers are as beautiful as butterflies.
花儿和蝴蝶一样漂亮。
★ be not so …as 和……不一样
He is not so tall as his brother.
他不像他哥哥那么高大。7. Recycle means “change things into something
else to be reused”.
把东西转换成其他可以使用的东西change into 把...变成
They are changing desert into farmland.
他们正在使沙漠变为农田。
The ugly caterpillar will change into a beautiful butterfly. 丑陋的毛虫会变成美丽的蝴蝶。 8. take energy 消耗能量
Running every day takes energy of your body so you can stay slim.
每天跑步消耗身体的能量，所以你就能保持苗条。9. be better than doing 比……好
Recycling is better than throwing
things away. 回收物品比扔掉好。10. …but let’s take these simple steps today…
今天就让我们从简单的措施开始吧…take step to do sth. 采取措施做某事
They?are taking?step?to?improve?their?teaching
?condition.?
他们正采取措施以改善教学条件.
He?says?he?will?take?step?to?tighten?up?the?
administration.?
他说他将采取措施加强行政管理。4. Check (√) the suggestions that are mentioned
in the passage.1. Order food that you can finish.
2. Use less electricity at home.
3. Learn ways to recycle rubbish.
4. Use paper cups and bags.
5. Repair things.
6. Divide rubbish into different groups.
7. Collect waste or rubbish to raise money.
8. Burn things to save energy.5. Find two things you should do and two things you should not do in the passage. Give reasons. Use your answers to write sentences.We should recycle rubbish because it can help us protect the environment.We shouldn’t buy the latest fashion because it waste energy to make them. We should not burn things because it pollutes our air and costs energy.
We should use less paper cups and bags because it does harm to the environment.6. Complete the passage with the correct form of
the words in the box.divide, granddaughter, plastic, policy,
rapid, recycle, repeat, step, ton We throw away (1) ______of rubbish every year. If we want a clean world for our grandsons and (2) _______________, we have to reduce, reuse and (3) _______.
(4) ________these three words every day. The first (5) ______ is to use less.tonsgranddaughtersRepeatrecyclestepThe second is to use things as long as possible. Then (6) _______your rubbish into
(7) ________, paper, rubber and glass. Finally, draw up a recycling (8) ________for your community. We cannot hope for (9) _______
change, but every little bit helps!divideplasticpolicyrapidWriting 7. Work in pairs. Make a list of things you can
do to make your school greener.Don’t throw bottles away.Don’t throw glass bottles, newspaper, old clothes, drink cans, old electric equipments away.8. Write a passage on how to make your school
greener and give reasons. Use the list
you have made in Activity 7 to help you. Use
because , so and so that .Don’t throw bottles away... because it is better to recycle them.Do turn out lights so that you use less energy. Try to use recycled paper because it save energy. Exercises根据句意及汉语意思完成句中单词。Even the simplest everyday activities can
_______(减少) pollution.
2. I think it’s__________(必要的) for us to
master a foreign language.
3. My computer doesn’t work. I have to get
somebody to ______________(修理) it.
4. He bought a ______(旧的) car.
5. Please_______(重复) what I say.reducenecessaryrepair/mendusedrepeat6. We’d better take our own cloth bad
instead of using_______(塑料的) bags.
7. Petrol is the most important_______(产品)
of many Middle-East countries.
8. Develop a recycling_________(策略) for
your country.
9. We can _________(重新使用) the same
water after chemical treatment.
10.______(分开) rubbish into groups. plasticproductpolicyreuseDivideHomeworkFinish the exercises in the workbook.课件46张PPT。九年级上册12Save our worldModuleUnit 3
Language in use.Language practiceReuse means “use again”.
Though pollution is heavy now, I don’t think
it’s hopeless.Make new words. Join the parts of words
in Box A with the words in Box B. You need to use some of the parts more than once.A -able -ful im- -less re- un- B care- collect- hope- -possible -use
-usual -wanted waste-carefulcarelesscollectablehopefulhopelessimpossibleunusedreusedunusualunwantedwastefulEnglish for Fun1. full of care___________
2. can be collected ________________
3. full of hope ________________
4. without any hope ________________carefulNow work in groups. Play the guessing game
English for Fun.collectablehopefulhopeless5. not possible________________
6. not usual ________________
7. without any use ________________
8. use again ________________
9. not wanted ________________
10. making a lot of waste _________impossibleunusualunusedreusedwastefulunwantedLearning to learnSometimes if you know the meaning of the parts of a word, you can work out the meaning of the whole word.
re + new + able: re = again,
able = can be
renewable = can be new again2. Complete the sentences with the words in
the box.hopeful, impossible, reuse, unhealthy, wasteful1. Polluted water is ______________.
2. It is ______________ to throw so much food
away.
3. If you look after things well, you may ______
some of them later.unhealthywasteful reuse4. It is ______________ to clean up the
whole river in such a short time.
5. If we pay attention to pollution now, the
future will be __________.impossiblehopeful3. Complete the table.hopehopeful/
hopelesspollutepollutedwaterwastewastefulwastefullyusual4. Complete the sentences with the correct form
of the words in Activity 3.She was_________ that her new job would make her more successful.hopefullyThe factory ___________the river, and the
fish died.
2. We often walk in the countryside. It is a(n) _________activity for us.
3. Do not use so much water. It is very __________.
4. To keep the flowers growing, you need to ________them once a day.pollutedusualwastefulwater5. Complete the sentences.A _________is a box that you keep your lunch in.lunchboxA ____________ is a card that you write on
one side of and send to someone by post.
2. A ____________ is a room where you have classes at school.
3. A ____________ is a book that has one or more stories for children.
4. A ____________ is a black board that is used at school for writing on with chalk.classroompostcardstorybookblackboard6. Work in pairs. Look at the picture
and answer the questions.What kinds of things
can be recycled?2. How can these things be reused?paper, plasticMany paper and plastic things can be used
more than one time. Or we can change these things into decorations made by us. 3. How does this help the
environment?
We don’t need to cut down more trees to make paper if we reuse papers.4. Have you ever recycled
or used things that can be
recycled?
How?
I ever recycled to use paper cup, I just use them to make some small decorations such as pen container. 7. Complete the conversation with the correct
form of the expressions in the box.be good for, throw away, turn off, worry aboutMike: I hear you are off to the Caribbean for a
holiday! Lucky you! But aren’t you
(1) ____________ the pollution that such long
plane journeys may cause for the environment?
Ken: I know, but what can I do about it? I’ve
already tried my best to protect the
environment. worry about I recycle. I don’t (2) ___________things if I
don’t want them any more. I (3) ________the
lights when I leave a room. Don’t tell me
I shouldn’t travel by plane any more!
Mike: No, of course not. But we can do more to
protect the environment. For example, we
can help keep the air clean by planting trees.
Trees (4) ____________the environment. In this
way, we can reduce the harm of pollution.
Ken: Good! So I can enjoy my holiday, and when
I come back, I’ll plant some trees!
Mike: That’s the idea! Maybe we can all join in
and start a small forest!throw awayturn offare good for8. Listen and check (√)the true sentences.It is OK to throw used things away. Looking
after them takes a lot of time.
2. Do not throw away things made of glass,
plastic and paper, but recycle them when possible.
3. Take a bag when you go shopping.
4. Producing electricity and using oil will not cause pollution.
5. Turn off the light when you do not need them.
6. Ride a bike or walk, and do not often drive your car.9. Listen again and complete the table.glass, plastic and paperrecycle take a bagare hard to Reusepollution to earth,
water and else in
many different waysreduce pollutionwaste electricityWalk or cyclingAround the worldEarth Hour Earth Hour is held toward the end of March each year. During Earth Hour, people all across the world switch off the lights they do not need. They do this to show their awareness of climate change.
The first Earth Hour was held in 2007 in Sydney, where more than 2.2 million people switched off their lights.Today, more and more cities are taking part in the event, such as Beijing, London, Rome and New York, and landmarks like the Empire State Building and the Golden Gate Bridge will go dark.Module taskDiscussing what you can do about pollution10. Work in groups. Decide what kind of
pollution you want to talk about.● Choose a subject that you care about the most. It could be water pollution, air pollution, etc.
● Find out more information about your subject. Look it up on a website or in a book.11. Discuss your subject.● Take turns to say what you think about the problem and what can be done.
● Listen to what others say. If you agree with what they have said, say “I agree”, “That’s
true” or “That’s a good point”; if you do not agree with what someone says, say “I’m
sorry, but I don’t agree. I think that…”12. Present your group’s ideas to the whole class. Yes, I agree with you that air pollution is one of the most serious problems. A great deal of energy is needed to run the factories of modern industrial nations. Automobile, trains, planes and busses need energy, too. Nearly all of this energy is produced by burning fuels. The burning produces wastes, some of which remain in the air, causing air pollution.Possible answer Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities. They are studying new ways of generating electricity that may be less damaging to the environment. At the same time, many power plants are being modernized to give off less polluted material. Also, engineers try to design and locate new power plants to do minimum damage to the environment. However, it may be that we still have a long way to go before we have a "clean" world. Nearly all of the countries are trying hard to prevent and control air pollution. There indeed
seems to be no end to tasks that environmentalists will be required to do. People will continually find new ways to control pollution. Grammar1.合成词构词法英语中构成新词最基本的方法有三种：合成法，缩略法和词缀法。合成词构词法就是将两个独立的单词和在一起构成一个新的单词。常见的方法有：(1). 合成名词homework(家庭作业) home+work---space + ship---spaceship(宇宙飞船)after + noon---afternoon(下午)(2). 合成动词ill + treat---ill-treat(虐待)sight + see---sight-see(观光)(3). 合成形容词hard + working---hard-working(勤奋的)well + known---well-known(著名的)world + famous---world-famous(世界闻名的)(4). 合成副词down + stair---downstairs(在楼下)up + stairs---upstairs(在楼上)(5). 合成代词some +body---somebody(某人)any +one---anyone(任何人)(6). 合成介词with +in---within(在…之内)in +to---into(到…)在一个单词前或后加上一个词缀，就可以构成一个新词。 根据词缀的位置，分为前缀和后缀两种。掌握一些常见的词缀，对单词的记忆和理解有很大的帮助。比如：我们学会care, 就能掌握careful, careless, carefully, carelessly。下面我们来学习几个常见的前、后缀：2. 前缀，后缀构词法前缀：1. 常见名词后缀后缀：(1). –an: American (美国人),
Indian(印度人)，
Canadian(加拿大)，
Italian(意大利人)(2). –er: worker (工人), driver(司机)，
teacher(教师)，player(选手)(3). –ess: actress (女演员),
waitress(女服务员)，(4). –ness: illness (疾病),
homelessness(无家可归)，
kindness (慈祥), happiness(幸福)(5). –or: actor (男演员), visitor(参观者)，
sailor(水手)(6). –ance: appearance (出现),
performance(表演)(7). –ment: agreement (同意),
basement(地下室)，
announcement(通知)(8). –sion: decision (决心),
discussion(讨论)，
conclusion(结论)(9). –ist： artist(艺术家)，scientist(科学家)(2). –ful：helpful(有帮助的),
hopeful(有希望的),
powerful(有力量的) ,useful(有用的),
careful(仔细的), beautiful(漂亮的)(3). –less：helpless(无帮助的),
hopeless (无希望的),, powerless(无力量的), useless(无用的), careless(粗心的)(4). –ly: friendly(有好的), lovely(可爱的)(5). –ing: interesting(有趣的),
exciting(激动人心的), boring(无聊的)(6). –ed: interested(感兴趣的)，
excited(感 到激动的，兴奋的)，
surprised(吃惊的)3.转换法英语构词法中把一种词性用作另一种词性而词
形不变的方法叫做转换法。1. 名词转化为动词。Your hand looks badly burnt.
你的手似乎烧伤很重。
He handed me a little rectangle of white paper.
他递给我一张小小的长方形白纸片。2. 形容词转化为动词。The stadium emptied at the end of the first day of athletics.
首日体育比赛结束后， 体育场空无一人。Exercises一.根据句意及首字母提示完成句中单词。Now it gets warmer and warmer because
the p_______ is getting worse and worse.
2. We should do something for e___________
protection, so that we can protect the earth.
3.It is h_______, although we do something to
make it better.ollutionnvironmentopeless4. We should r________ waste and save energy.
5. Do you know the d_________ between the
Internet and the Word Wide Web?二. 用所给单词的适当形式填空。I like working here because everyone is
_________(friend).
2. Alan is the _______(win) of the photo competition this year.
3. Mum often tells Linda not to talk to a _________(strange).educeifferencefriendlywinnerstranger4. My brother, Jim, has become a ________(law).
He is very busy every day.
5. It was such a ___________ (wonder) movie that all of us enjoyed it.
6. It is ___________(possible) to buy things without money.
7. Hamburgers are_________ (health) food.
8. Let’s hope that all our troubles will__________
(appear) soon.
9. The local people are________ (thank) that the whole nation are helping them rebuild the town.
10. He is too _________(care) to pass the final exam.lawyerwonderfulimpossibleunhealthydisappearthankfulcarelessHomeworkThink about what you can do about pollution. The earth is the homeland where we live. Once upon a time the air was so fresh and the earth were covered with green trees. But with the development of industry, our environment is not as beautiful as before. The air is polluted by factories and cars. Too much noise is produced by them. Many riversPossible answerare also polluted by waste water. People have to drink the polluted water which is bad for our health.
Now we must take some measures to prevent the earth from being polluted, to stop the factories from producing more waste water. We shouldn't use plastic bags any more. Plant more trees to make our air clean again.
