外研版九年級(jí)英語(yǔ)上冊(cè)Module 12 Save our worldUnit 3

1、Reuse means “use again”.Though pollution is heavy now, I dont think its hopeless.Make a 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 wastecollectable,

2、usable, careful, hopeful, useful, wasteful, impossible, careless, hopeless, useless, reuse, unusual, unwanted Now work in groups. Play the guessing game English for Fun. full of care _2. can be collected _3. full of hope _4. without any hope _5. not possible _carefulcollectablehopefulhopelessimpossi

3、ble6. not usual _7. without any use _8. use again _9. not wanted _10. making a lot of waste _ unusual uselessreuseunwantedwastefulSometimes 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 ne

4、w again1. 合成法合成法 將兩個(gè)或兩個(gè)以上獨(dú)立且語(yǔ)義不同的將兩個(gè)或兩個(gè)以上獨(dú)立且語(yǔ)義不同的單詞合在一起構(gòu)成新詞的方法叫做合成單詞合在一起構(gòu)成新詞的方法叫做合成法。合成法是一種比較靈活的構(gòu)詞方法，法。合成法是一種比較靈活的構(gòu)詞方法，可以合成名詞、形容詞、副詞、代詞、可以合成名詞、形容詞、副詞、代詞、動(dòng)詞等。例如：動(dòng)詞等。例如：afternoon, sportsman, blackboard, sportsperson, newspaper, airplane, classmate, grandfather 等等就是通過(guò)合成構(gòu)詞法構(gòu)成的名詞；就是通過(guò)合成構(gòu)詞法構(gòu)成的名詞；kind-hear

5、ted, middle-aged, hard-working 等為合成形容詞；等為合成形容詞；however, maybe, himself, everyone, nothing, overlook 等也都是通過(guò)合成法構(gòu)成等也都是通過(guò)合成法構(gòu)成的單詞。的單詞。2. 派生法派生法 通過(guò)在詞根前面加前綴或在詞根通過(guò)在詞根前面加前綴或在詞根后面加后綴構(gòu)成一個(gè)新詞的方法叫后面加后綴構(gòu)成一個(gè)新詞的方法叫作派生法。要通過(guò)派生法理解和記作派生法。要通過(guò)派生法理解和記憶單詞憶單詞, 我們需要掌握常見(jiàn)的前綴和我們需要掌握常見(jiàn)的前綴和后綴及派生規(guī)律。后綴及派生規(guī)律。(1) 常見(jiàn)前綴常見(jiàn)前綴(2) 常見(jiàn)后綴常見(jiàn)后綴

6、(3) 派生規(guī)律派生規(guī)律由一個(gè)詞根加上相應(yīng)的詞綴可以派生由一個(gè)詞根加上相應(yīng)的詞綴可以派生出名詞、形容詞、副詞等，掌握派生出名詞、形容詞、副詞等，掌握派生規(guī)律對(duì)擴(kuò)充詞匯有很大幫助。例如：規(guī)律對(duì)擴(kuò)充詞匯有很大幫助。例如：由由 interest 可以派生出：可以派生出： uninterestinginterest interesting interestingly interested uninterested由由 help 可以派生出：可以派生出： helpless helplesslyhelp helpful helpfully由由 able 可以派生出：可以派生出： enableable un

7、able ability disable3. 轉(zhuǎn)化法轉(zhuǎn)化法 英語(yǔ)構(gòu)詞法中把一種詞性轉(zhuǎn)化為另一英語(yǔ)構(gòu)詞法中把一種詞性轉(zhuǎn)化為另一種詞性而詞形不變的方法稱作轉(zhuǎn)化法。種詞性而詞形不變的方法稱作轉(zhuǎn)化法。常見(jiàn)的轉(zhuǎn)化有：常見(jiàn)的轉(zhuǎn)化有：(1) 動(dòng)詞轉(zhuǎn)化為名詞動(dòng)詞轉(zhuǎn)化為名詞 Lets talk about it more. 咱們?cè)僬務(wù)勥@件事吧。咱們?cè)僬務(wù)勥@件事吧。 I think wed better finish the talk now. 我想我們最好現(xiàn)在結(jié)束談話。我想我們最好現(xiàn)在結(jié)束談話。(2) 名詞轉(zhuǎn)化為動(dòng)詞名詞轉(zhuǎn)化為動(dòng)詞 She gave me a cup of water. 她給了我一杯水。她給了我

8、一杯水。 You should water the flowers twice a day. 你應(yīng)該每天給這些花澆兩次水。你應(yīng)該每天給這些花澆兩次水。 (3) 形容詞轉(zhuǎn)化為名詞形容詞轉(zhuǎn)化為名詞 She was wearing a black dress. 她穿著一條黑色的裙子。她穿著一條黑色的裙子。 The girl in black looks very beautiful. 那個(gè)穿黑衣服的女孩看上去很漂亮。那個(gè)穿黑衣服的女孩看上去很漂亮。Complete the sentences with the words in the box.hopeful impossible reuse unh

9、ealthy wasteful Polluted water is _.2. It is _ to throw so much food away.unhealthywasteful3. If you look after things well, 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 _.reuseimpossiblehopefulCo

10、mplete the table.useuseusefully/uselesslyhopehopeful/hopelesspollutepolluted/unpollutedwaterwastewasteful/wastedwastefullyusual/unusualComplete the sentences with the correct form of the words in Activity 3.She was hopeful that her new job would make her more successful. The factory _ the river, and

11、 the fish died.2. We often walk in the countryside. It is a(n) _ activity for us.pollutedusual3. Do not use so much water. It is very _.4. To keep the flowers growing, you need to _ them once a day.wastefulwaterComplete the sentences. A lunchbox is a box that you keep your lunch in. A _ is a card th

12、at you write on one side of and send to someone by post.2. A _ is a room where you have classes at school.postcardclassroom3. 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.storybookblackboardLook at the pictures and a

13、nswer the questions. What kinds of things can be recycled?2. How can these things be reused?3. How does this help the environment?4. Have you ever recycled or used things that can be recycled? How?Complete the conversation with the correct form of the expressions in the box.be good for throw away tu

14、rn off worry aboutMike: I hear you are off to the Caribbean for a holiday! Lucky you! But arent you _ the pollution that such long plane journey may cause for the environment?Ken: I know, but what can I do about it? Ive already tried my best to protect the environment. worried aboutI recycle. I dont

15、 _ things if I dont want them any more. I _ the lights when I leave a room. Dont tell me I shouldnt travel by plane any more!throw awayturn offMike: 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 _ the environmen

16、t. In this way, we can reduce the harm of pollution.are good forKen: 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!Listen and check () the true sentences. 1. It is OK to throw used things away. Look

17、ing 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 them.6. Ride a bike or walk, and

18、do not often drive your car.Listen again and complete the table. glass, plastic and paperrecycleReusetake a bagare hard to reduce pollutionwaste electricityWalk or cyclepollutionEarth HourRead the passage and answer the questions.When is Earth Hour held each year?Earth Hour is held toward the end of

19、 March each year.Why do people switch off the lights during Earth Hour?They do this to show their awareness of climate change.When and where was the first Earth Hour held?The first Earth Hour was held in 2007 in Sydney.Which city take part in the event today?More and more cities are taking part in the event, such as Beijing, London, Rome and New York. Work in groups. Decide what kind of pollution you want to talk about. Choose a subject that you care about the mos