外研版九年级英语上册课件Module 12 Save our world Unit 3(共37张PPT)

1、外研 九年级上教学辅助课件Unit 3 Language in useModule 12Save our worldTo summarize and consolidate the rules of word buildingObjective:Can you list more compound words?one new compound wordone wordone word+Do you know the meanings of these words?Possible answers:ObserveObserve the following sentences carefully.

2、 And pay attention to the words in red.1. Reuse means “use again”.2. Though pollution is heavy now, I dont think its hopeless.3. If the rivers are polluted, 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,

3、 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.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 to

4、day 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 think its _ (hope).3. If the rivers are polluted, _ (farm) cant use the water for their crops.4. If _ (everyone) starts to do _ (something), the wo

5、rld 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 hopeless farmers everyone something healthy waste harmful go Ready?6. Do not _ (waste) things.7. Repeat these three words daily: reduce, _ (use) and _

6、(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 steps today so that we will save the world for our _ (grandson) and _ (granddaughter) tomorrow.waste reuse recyclesomethingreally grandsons grandd

7、aughters 构词法1. 合成法将两个或两个以上独立且语义不同的单词合在一起构成新词的方法称作合成法。合成名词afternoon, sportsman, blackboard, newspaper, airplane, classmate合成形容词 kind-hearted, middle-aged, hard-working合成副词 however, maybe合成代词 himself, everyone, nothing合成动词 overlook2. 派生法通过在词根前面加前缀或在词根后面加后缀构成一个新词的方法称作派生法。前缀含义例词 dis-不 disagree, dislike

8、en-使处在某种状态 enable, enrich im-, in-不 impossible, impatient, inexpensive inter-在之间 international, interconnect mis-错误的 mislead, misunderstand non-不，非 non-smoker, non-native re-再，重复 rewrite, retell un-不 unable, unhappy, unpopular2. 派生法后缀含义例词 -er, -or构成名词 teacher, worker, visitor-ian musician-ing buildi

9、ng, painting, shopping-ist artist, scientist-ment agreement, government-ness coldness, happiness, illness-th truth, warmth-tioncompetition, education, information -ty activity, safety后缀含义例词 -able, -ible构成形容词 comfortable, eatable, enjoyable -al environmental, international-ful careful, helpful-ive ac

10、tive, expensive-less careless, helpless, homeless-ly friendly, lovely, monthly-ous dangerous, famous-teen构成数词eighteen, fifteen, seventeen-thfifteenth, fifth, fortieth-ty forty, sixty, twenty -ly 构成副词 badly, carefully, happily词根词缀名词形容词副词+ interestuninterestedinterestinglyuninterestinginterestedintere

11、sting派生规律 helphelpfullyhelplesslyhelpfulhelpless abledisableunableenableability3. 转换法英语构词法中把一种词性转化为另一种词性而词形不变的方法称为转化法。(1) v. n. Lets talk about it more. I think wed better finish the talk now. 咱们再谈谈这件事吧。 我想我们最好现在结束谈话。(3) adj. n. She was wearing a black dress. The girl in black looks very beautiful.

12、她穿着一条黑色的裙子。 那个穿黑衣服的女孩看上去很漂亮。(2) n. v. She gave me a cup of water. You should water the flowers twice a day. 她给了我一杯水。 你应该每天给这些花浇两次水。以下部分为课本练习，供老师在对答案时选择使用。Learning toSometimes if you know the meaning of the parts of a word, you can work out the meaning of the whole word. re + new + able renewableagai

13、n 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 carelesscollectable hopeful hopeless impossible reuse

14、 usable useful useless unwanted wasteful unusualNow work in groups. Play the guessing game English for Fun.English for Fun1. 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 wanted _10. making a lot of wa

15、ste _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 well, you may _ some of them l

16、ater.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 water waste usually/ unusuallyu

17、seuseusefully/ 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. The factory _ the river, and

18、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 lunch in. lunchbox1. A _ is a

19、 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.postcardclassroomstorybookblackboard6P101Work in pairs

20、. 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, glass, etc.Recycled paper can

21、 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 arent you (1) _ the pollution

22、 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 shouldnt travel by plane any mor

23、e! 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 clean by planting trees. Tr

24、ees (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 about are good for1. It is OK t

25、o 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 lights when you do not need the

26、m.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.Plastic bags _ recycle.3. Use

27、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 pollution9P102Listen again and complete the

28、table.Review英语中常见的构词法：1. 合成法2. 派生法 （加前缀、后缀）3. 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. 选择适当的单词并用其正确形式填空。Quizhelpfulcarelesseatablecorrect energy eat possibleappear help success carecorrect energy eat possibleappear help success care4. Tom is an _ b