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1、Unit 3 Language in use Module 12 Save our worldTo summarize and consolidate the rules of word buildingObjective:Observe the following sentences carefully. They are all from this module.1. Reuse means “use again”.2. Though pollution is heavy now, I dont think its hopeless.3. If the rivers are pollute
2、d, farmers cant use the water for their crops.4. If everyone starts to do something, the world will be saved.5. We all need a healthy environment, but we produce waste every day, and it is harmful to our environment.6. Do not waste things.7. Repeat these three words daily: reduce, reuse and recycle.
3、8. Before you buy something new, think whether it is really necessary because maybe old one is just as good!9. but lets take these simple steps today so that we will save the world for our grandsons and granddaughters tomorrow.1. _ (use) means “use again”.2. Though _ (pollute) is heavy now, I dont t
4、hink its _ (hope).3. If the rivers are polluted, _ (farm) cant use the water for their crops.4. If _ (everyone) starts to do _ (something), the world will be saved.5. We all need a _ (health) environment, but we produce _ (waste) every day, and it is _ (harm) to our environment.Reuse pollution hopel
5、ess farmers everyone something healthy waste harmful go Ready?6. Do not _ (waste) things.7. Repeat these three words daily: reduce, _ (use) and _ (recycle).8. Before you buy _ (something) new, think whether it is _ (real) necessary because maybe old one is just as good!9. but lets take these simple
6、steps today so that we will save the world for our _ (grandson) and _ (granddaughter) tomorrow.waste reuse recyclesomethingreally grandsons granddaughters 将将两个或两个以上独立且语义不同的单词两个或两个以上独立且语义不同的单词合在一起合在一起构成新词的方法称作合成法。构成新词的方法称作合成法。合成名词合成名词afternoon, sportsman, blackboard, newspaper, airplane, classmate合成形
7、容词合成形容词 kind-hearted, middle-aged, hard-working合成副词合成副词 however, maybe合成代词合成代词 himself, everyone, nothing合成动词合成动词 overlook通过通过在词根前面加前缀在词根前面加前缀或或在词根后面加在词根后面加后缀后缀构成一个新词的方法称作派生法。构成一个新词的方法称作派生法。前缀前缀含义含义例词例词 dis-不不 disagree, dislike en-使使处在处在某种状态某种状态 enable, enrich im-, in-不不 impossible, impatient, inexp
8、ensive inter-在在之间之间 international, interconnect mis-错误的错误的 mislead, misunderstand non-不，非不，非 non-smoker, non-native re-再，重复再，重复 rewrite, retell un-不不 unable, unhappy, unpopular后缀后缀含义含义例词例词 -er, -or构成名词构成名词 teacher, worker, visitor-ian musician-ing building, painting, shopping-ist artist, scientist-m
9、ent agreement, government-ness coldness, happiness, illness-th truth, warmth-tioncompetition, education, information -ty activity, safety后缀后缀含义含义例词例词 -able, -ible构成形容构成形容词词 comfortable, eatable, enjoyable -al environmental, international-ful careful, helpful-ive active, expensive-less careless, help
10、less, homeless-ly friendly, lovely, monthly-ous dangerous, famous-teen构成数词构成数词eighteen, fifteen, seventeen-thfifteenth, fifth, fortieth-ty forty, sixty, twenty -ly 构成副词构成副词 badly, carefully, happily词根词根词缀词缀名词名词形容词形容词副词副词+ interestuninterestedinterestinglyuninterestinginterestedinteresting helphelpfu
11、llyhelplesslyhelpfulhelpless abledisableunableenableability英语构词法中把英语构词法中把一种词性一种词性转化为转化为另一种另一种词性词性而而词形不变词形不变的方法称为转化法。的方法称为转化法。(1) v. n. Lets talk about it more. I think wed better finish the talk now. 咱们再咱们再谈谈谈谈这件事吧。这件事吧。 我想我们最好现在结束我想我们最好现在结束谈话谈话。(2) n. v. She gave me a cup of water. You should water
12、 the flowers twice a day. 她给了我一杯她给了我一杯水水。 你应该每天给这些花你应该每天给这些花浇浇两次两次水水。(3) adj. n. She was wearing a black dress. The girl in black looks very beautiful. 她穿着一条她穿着一条黑色的黑色的裙子。裙子。 那个穿那个穿黑衣服黑衣服的女孩看上去很漂亮。的女孩看上去很漂亮。Sometimes if you know the meaning of the parts of a word, you can work out the meaning of the
13、 whole word. re + new + able renewableagain can be can be new again1P100Make new words. Join the parts of the words in Box A with the words in Box B. you need to use some of the parts more than once. -able -ful im- -less re- un- care collect hope possible use usual wanted wasteAB careful carelesscol
14、lectable hopeful hopeless impossible reuse usable useful useless unwanted wasteful unusualNow work in groups. Play the guessing game English for Fun.1. full of care _2. can be collected _3. full of hope _4. without any hope _5. not possible _6. not usual _7. without any use _8. use again _9. not wan
15、ted _10. making a lot of waste _carefulcollectablehopefulhopelessimpossibleunusualuselessreuseunwantedwasteful2P100Complete 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 wel
16、l, you may _ some of them later.4. 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 _.unhealthywastefulreuseimpossiblehopeful3P101Complete the table.Noun Verb Adjective Adverb useful/ uselesshope hopefully/ hopelessly pollution wate
17、r waste usually/ unusuallyuseuseusefully/ uselesslyhope hopeful/ hopelesspollutepolluted/ unpollutedwaterwaste wasteful/ wasted wastefully usual/ unusual4P101Complete the sentences with the correct form of the words in Activity 3.She was _ that her new job would make her more successful.hopeful1. Th
18、e 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.pollutedusual wastefulwater5P101Complete the sentences.A _ is a box that you keep your lu
19、nch in. lunchbox1. A _ 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.postcardclassroomstorybookb
20、lackboard6P101Work in pairs. Look at the pictures and answer the questions.1. What kind of things can be recycled?2. How can these things be used?3. How does this help the environment?4. Have you ever recycled or used things that can be recycled? How? possible answers:Cloth, paper, cans, plastic, gl
21、ass, etc.Recycled paper can be used for notebooks, tickets or writing paper.It helps save a lot of resources and reduce greenhouse gas emissions.Yes. I recycled aluminum cans and paper by selling them to the recycled factory. Mike: I hear you are off to the Caribbean for a holiday! Lucky you! But ar
22、ent 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 already try my best to protect the environment. I recycle. I dont (2) _ things if I dont want them any more. I (3)_ the lights when I leave a room. Dont tell me I shoul
23、dnt travel by plane any more! be good for throw away turn off worry about worried about throw away turn off7P102Complete the conversation with the correct form of the expressions in the box.Mike: No, of course not. But we can do more to protect the environment. For example, we can help keep the air
24、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, Ill plant some trees!Mike: Thats the idea! Maybe we can all join in and start a small forest! be good for throw away turn off worry abou
25、t are good for1. 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 ligh
26、ts when you do not need them.6. Ride a bike or walk, and do not often drive your car.8P102Listen and check () the true sentences.Advice Reasons 1. Dont throw away things made of _, but _ them.Throwing things away is wasteful.2. _ your plastic bags when you can and _ with you when you go shopping.Pla
27、stic bags _ recycle.3. Use less electricity and oil to _.4. Dont leave lights on and _.5. _ and do not often drive your car.Producing electricity and using oil may cause _. glass, plastic and paper recycle Reuse take a bag are hard to reduce pollution waste electricityWalk or cycle pollution9P102Lis
28、ten again and complete the table.英语中常见的构词法：英语中常见的构词法：1.合成法合成法2. 派生法派生法 （加前缀、后缀）（加前缀、后缀）3. 转化法（词性变词形不变）转化法（词性变词形不变）1. Both of the books were _ to herand she couldnt decide which one to buy.2. How _ of John to break the cup!3. The meat has a strange smell. Im afraid its hardly _.I. 从方框中选择适当的单词并用其正确形从方
29、框中选择适当的单词并用其正确形式填空。式填空。Quiz注注: word : word 文档文档点击此处链接点击此处链接helpfulcarelesseatablecorrect energy eat possibleappear help success carecorrect energy eat possibleappear help success care4. Tom is an _ boy and it seems that he never gets tired.5. Im afraid that its _ for us to get there before eight.6.
30、The sun _ behind the clouds and it began to rain.7. Im sorry to say your answer is _. Please try again.8. Its not easy to become a _ actor.energeticimpossibledisappearedincorrectsuccessful.完成下列同义句。完成下列同义句。1. Its not polite to speak to others with your mouth full of food. Its _ to speak to others wit
31、h your mouth full of food.2. The teacher asked him to write the composition again. The teacher asked him to _ thecomposition.impoliterewrite3. Hes not popular with some of the neighbors. Hes _ with some of the neighbors.4. I hate sweet food. Especially, I dont likeeating cake. I hate sweet food. Especially, I _ eating cake.5. Hamburgers, candy and ice cream arent healthy food. Hamburgers, candy and ice cream are _ food.unpopulardislikeunhealthy1. Search for more information about pollution. Make an oral presentation to your class.2. Finish the exercises in Learning English.Homework
