新外研版九年级上册英语 Module 12 Unit 3 教学课件

1、Module 12 Save our world Unit 3 Language in use. 学习目标1.To summarize and consolidate the rules of word building.2.To know how to protect the environment.3.To practice word-building: compounds, derivatives, conversion新课导入Language practiceReuse means “use again”.Though pollution is heavy now, I dont th

2、ink its hopeless.思 考新课讲解1Make 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.-able -ful im- -less re- un-able -ful im- -less re- un-ABcarefulcarelesscollectablehopeful hopelessimpossiblereuseunusualunwantedwasteful新课讲解Now work in

3、 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 waste _carefulcollectablehopefulhopelessimpossibleunusualusel

4、essreuseunwantedwasteful新课讲解Learning 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 renewableagain can be can be new again新课讲解2Complete the sentences with the words in the box.hopeful impossible reuse unhealthy wastef

5、ul1. 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.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 _.unhealthywastefulreuseimpossiblehopeful新课讲解Complete

6、the table.3Noun Verb Adjective Adverb useful/ uselesshope hopefully/ hopelessly pollution water waste usually/ unusuallyuseuseusefully/ uselesslyhope hopeful/ hopelesspollutepolluted/ unpollutedwaterwaste wasteful/ wasted wastefully usual/ unusual新课讲解4Complete the sentences with the correct form of

7、the words in Activity 3.She was hopeful that her new job would make her more successful. 1. The factory _ the river, and the fish died.2We often walk in the countryside. It is a(n) _ activity for us.3Do not use so much water. It is very_4To keep the flowers growing, you need to _ them once a day.pol

8、lutedusual wastefulwater新课讲解5Complete the sentences. A lunchbox is a box that you keep your lunch in.1. 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 bla

9、ck board that is used at school for writing on with chalk.postcardclassroomstorybookblackboard新课讲解6Work in pairs. Look at the pictures and answerthe questions. What kinds of things can be recycled?paper, plastic2. How can these things be reused?Many paper and plastic things can be used more than one

10、 time. Or we can change these things into decorations made by us. 新课讲解3. How does this help the environment?We dont 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 mak

11、e some small decorations such as pen container. 新课讲解7Complete 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 arent you (1) _the pollution that such long plane jour

12、neys may cause for the environment?KEN: I know, but what can I do about it? Ive already tried 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 more! worried aboutthrow aw

13、ayturn off新课讲解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, Ill plant some tr

14、ees!Mike:Thats the idea! Maybe we can all join in and start a small forest!are good for新课讲解8Listen and check () the true sentences.1. 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 possibl

15、e.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 do not often drive your car. 新课讲解9Listen again and complete the table.Advice1.Dont throw away things made of_， but _ them.2._

16、your plastic bags when you can and _ with you when you go shopping. 3.Use less electricity and oil to _. 4Dont leave lights on and _. 5_ and do not often drive your car. glass , plastic and paper recycle Reuse take a bagreduce pollutionwaste electricity Walk or cycle新课讲解Around the world Earth Hour E

17、arth 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 l

18、ights. 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. 新课讲解10Work in groups. Decide what kind of pollution you want to talk about. Choose a subject that you car

19、e 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 books.新课讲解11Discuss 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 wha

20、t they have said, say “I agree”, “Thats true” or “Thats a good point”; if you do not agree with what someone says , say “Im sorry, but I dont agree. I think that .”12Present your groups ideas to the whole class.新课讲解 work out解决；计算；产生结果；设计出PointLanguage points 1eg：The plan worked out badly. 计划实施得很不成功。

21、 See if you can work out this problem. 看你能不能解出这道难题。新课讲解 go dark 变暗PointLanguage points 2这里的go为系动词。英语系动词的功能主要是把表语和主语联系在一起，说明主语的属性、特征或状态。系动词不能在句中独立作谓语，必须和后面的表语一起构成句子的谓语。考点1 :某些含有变化意义的动态系动词如get, become, grow, turn等的进行时态可与形容词的比较级连用，表示渐进过程，其意思是“越来越”。eg：He is growing taller and taller. 他长得越来越高了。 Our life

22、is getting better and better. 我们的生活越来越好了。新课讲解 go dark 变暗PointLanguage points 2考点2 :后接过去分词可构成系表结构。eg：John got wounded while playing football last Saturday. 约翰上周六踢足球时受了伤。考点3 :易混系动词的区别get, become, go, turn, grow“变得”考点3 :get :“变得”，在口语中用得很多。become :“变成，成为(好坏情况均可)”。后接形容词、名词、过去分词作表语。go :“变得(某种由好到坏的情况)”，可表示

23、颜色的变化或语态的变化。turn :“变成”，强调与原来不同的、新的变化，如变质、变色等。grow :“逐渐变得”，强调其变化过程.新课讲解 care for与care about的意义、用法区别PointLanguage points 3careabout在乎，关心I dont care about your opinion.我不在乎你的意见。Dont you care about anybody?你难道谁也不关心吗？carefor喜欢，照顾She doesnt care for that colour.她不喜欢那种颜色。He cared for his sick mother day an

24、d night.他日夜照顾生病的母亲。新课讲解GRAMMER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）新课讲解GRAMMER1. 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 overl

25、ook新课讲解GRAMMER2. 派生法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：新课讲解GRAMMER前缀：词根re-in(m)-un-dis-意义再/又不/无不/无不/无例子rewriteincorrectuneasydislikereuseimpossibleimpoliteuntruedisagree新课讲解GRAMMER词根inter-su

26、per-anti-意义互相 超反对；防止例子internationalsupermananti-warinternetsupermarketsuperstaranti-pollution新课讲解GRAMMER后缀：常见名词后缀:(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), ho

27、melessness(无家可归)，kindness (慈祥), happiness(幸福)(5). or: actor (男演员), visitor(参观者)，(6). ance: appearance (出现), performance(表演)(7). ment: agreement (同意), 新课讲解GRAMMER后缀：常见形容词后缀:(1). ful：helpful(有帮助的), hopeful(有希望的), powerful(有力量的) ,useful(有用的), (2). less：helpless(无帮助的), hopeless (无希望的), powerless(无力量的),u

28、seless(无用的), (3). ly: friendly(有好的), lovely(可爱的)(4). ing:interesting(有趣的), exciting(激动人心的), boring(无聊的)(5). ed: interested(感兴趣的)， surprised(吃惊的)新课讲解GRAMMER3. 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 athleti