外研版九年级上册英语-M12-U3-教学课件ppt.ppt

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1、Unit 3Unit 3Module 12 Save our world优优 翼翼 课课 件件 九年级英语（九年级英语（WYWY）教学课件教学课件12Unit 3 Language in use To 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 t

2、hink 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.Lead in5.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 t

3、hree 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 today so that we will save the world for our grandsons and granddaughters tomorrow.1._(use)means“use again”.2.Though

4、_(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 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 pol

5、lution hopeless 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 step

6、s today so that we will save the world for our _(grandson)and _(granddaughter)tomorrow.waste reuse recyclesomethingreally grandsons granddaughters Presentation1.1.合成法合成法将将两个或两个以上独立且语义不同的单词合在两个或两个以上独立且语义不同的单词合在一起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,cla

7、ssmate合成形容词合成形容词 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 overlook2.2.派生法派生法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后缀在词根后面加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,impati

8、ent,inexpensive 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-ment

9、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,helpless,homeless-ly frie

10、ndly,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,happily2.2.派生法派生法词根词根词缀词缀名词名词形容词形容词副词副词+interestuninterestedinterestinglyuninterestinginterestedinteresting helphelpfullyhelplesslyhelpfulhelpl

11、ess abledisableunableenableability3.3.转换法转换法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词性另一种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。Sometimes if you know the meaning of the parts of a word,you can work out t

12、he meaning of the 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 care

13、lesscollectable hopeful hopeless impossible reuse usable useful useless unwanted wasteful unusualConsolidationNow 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

14、_9.not wanted _10.making a lot of waste _carefulcollectablehopefulhopelessimpossibleunusualuselessreuseunwantedwasteful2 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 w

15、ell,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 _.unhealthywastefulreuseimpossiblehopeful3 Complete the table.Noun Verb Adjective Adverb useful/uselesshope hopefully/hopelessly pollution water waste

16、 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.The factory _ th

17、e 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 wastefulwater5 Complete the sentences.A _ is a box that you keep your lunch in.lunchbox1.A _ is a

18、 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.postcardclassroomstorybookblackboard6 Work in pairs.Look

19、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 be used for noteb

20、ooks,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.Complete the conversation with the correct form of the expressions in the box.7Mike:I hear you are off to the Caribbean fo

21、r a holiday!Lucky you!But arent 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

22、tell me I shouldnt travel by plane any more!be good for throw away turn off worry about worried about throw away turn 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(4)_ the environment.In this way,we can reduc

23、e 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 to throw used things away.Looking after them takes a lot of ti

24、me.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 do not often drive your car.8 Listen and

25、 check()the true sentences.Listen again and complete the table.9Advice 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 less electricity and oil to _.4.Dont leave

26、 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 pollution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.B

27、oth 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框中选择适当的单词并用其正确形式填空。式填空。Quizhelpfulcarelesseatablecorrect energy eat possibleappear help success carePracticecorrect energy

28、 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.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.energeticimpo

29、ssibledisappearedincorrectsuccessful.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 with your mouth full of food.2.The teacher asked him to write the composition again.The teacher asked him to _ thecomposition.impoliterewrite3.Hes not popula

30、r 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 in

31、formation about pollution.Make an oral presentation to your class.2.Finish the exercises in the students book.HomeworkHomework更多资料，请联系小编更多资料，请联系小编成为终身成为终身VIPVIP会员会员5000G5000G宝贵资料永久免费宝贵资料永久免费扫二维码关注扫二维码关注“X X数学数学”微信公众号，微信公众号，领取更多领取更多免费免费资料资料谢谢！谢谢！为深入学习习近平新时代中国特色社会主义思想和党的十九大精神为深入学习习近平新时代中国特色社会主义思想和党的十九大精神,贯彻全国教育大会精神贯彻全国教育大会精神,充分发挥中小学图书室育人功能充分发挥中小学图书室育人功能更多资料，请联系小编更多资料，请联系小编成为终身成为终身VIPVIP会员会员5000G5000G宝贵资料永久免费宝贵资料永久免费扫二维码关注扫二维码关注“X X数学数学”微信公众号，微信公众号，领取更多领取更多免费免费资料资料谢谢！谢谢！