九年级英语上册Module12SaveourworldUnit3Languageinuse课件新版

Module12SaveourworldUnit3Languageinuse第一页，共21页。Module12SaveourworldUnit3LanguagepracticeReusemeans“useagain”.Thoughpollutionisheavynow,Idon’tthinkit’shopeless.

第二页，共21页。LanguagepractMakenewwords.JointhepartsofwordsinBoxAwiththewordsinBoxB．Youneedtousesomeofthepartsmorethanonce.ABcarecollecthopepossibleuse

usualwantedwaste-able-fulim--lessre-un-第三页，共21页。Makenewwords.Jointheparts

LearningtolearnSometimesifyouknowthemeaningofthepartsofaword,youcanworkoutthemeaningofthewholeword.re＋new＋able：re=again,able=canbe，renewable=canbenewagain第四页，共21页。Learningtolearn第四页，共21页。

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(xīncí)的方法叫做合成法。合成法是一种比较灵活的构词方法，可以合成名词、形容词、副词、代词、动词等。例如：afternoon,sportsman,blackboard,sportsperson,newspaper,airplane,classmate,grandfather等就是通过合成构词法构成的名词；kind-hearted,middle-aged,hard-working等为合成形容词；however,maybe,himself,everyone,nothing,overlook等也都是通过合成法构成的单词。第五页，共21页。第五页，共212.派生(pàishēng)法通过在词根前面加前缀或在词根后面加后缀构成(gòuchéng)一个新词的方法叫作派生法。要通过派生法理解和记忆单词,我们需要掌握常见的前缀和后缀及派生规律。第六页，共21页。2.派生(pàishēng)法通过在词根前前缀含义例词dis-不disagree,dislikeen-使……处于某种状态enable,enrichim-,in-不Impossible,impatient,inexpensiveinter-在……之间；相互international,interconnectmis-错误地mislead,misunderstandnon-不,非non-smoker,non-nativere-再,重复rewrite,retellun-不unable,unhappy,unpopular常见(chánɡjiàn)前缀第七页，共21页。前缀含义例词dis-不disagree,dislikeenworkout解决(jiějué)；计算；产生结果；设计出这里的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(dúlì)作谓语，必须和后面的表语一起构成句子的谓语。第八页，共21页。workout解决(jiějué)；计算；产生结果；设计出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(liányòng)，表示渐进过程，其意思是“越来越……”。eg：Heisgrowingtallerandtaller.他长得越来越高了。Ourlifeisgettingbetterandbetter.我们的生活越来越好了。第九页，共21页。某些含有变化意义的动态系动词如get,become,gget“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。易混系动词(dòngcí)的区别get,become,go,turn,grow“变得”第十页，共21页。get“变得”，在口语中用得很多。become“变成，成为(carefor与careabout的意义(yìyì)、用法区别careabout在乎，关心Idon'tcareaboutyouropinion.我不在乎你的意见。Don'tyoucareaboutanybody?你难道谁也不关心吗？第十一页，共21页。carefor与careabout的意义(yìyì)、用carefor喜欢，照顾Shedoesn'tcareforthatcolour.她不喜欢那种颜色。Hecaredforhissickmotherdayandnight.他日夜照顾生病的母亲。第十二页，共21页。care喜欢，照顾Shedoesn'tcareforCompletethesentenceswiththewordsinthebox.hopefulimpossiblereuseunhealthywasteful1.Pollutedwateris____________.2.Itis_________tothrowsomuchfoodaway.3.Ifyoulookafterthingswell,youmay________someofthemlater.4.Itis___________tocleanupthewholeriverinsuchashorttime.5.Ifwepayattentiontopollutionnow,thefuturewillbe__________.第十三页，共21页。CompletethesentencNounVerbAdjectiveAdverbuseful/uselesshopehopefully/hopelesslypollution——water————waste————usually/unusuallyCompletethetable.第十四页，共21页。Completethetable.第十四页，共21页。WorkinpairsLookatthepicturesandanswerthequestions.1.Whatkindsofthingscanberecycled?2.Howcanthesethingsbereused?3.Howdoesthishelptheenvironment?4.Haveyoueverrecycledorusedthingsthatcanberecycled?How?第十五页，共21页。Workinpairs第十五页，共21页。Completetheconversationwiththecorrectformoftheexpressionsinthebox.

begoodforthrowawayturnoffworryaboutMike:IhearyouareofftotheCaribbeanforaholiday!Luckyyou!Butaren’tyou（1）_____________thepollutionthatsuchlongplanejourneymaycausefortheenvironment?第十六页，共21页。CompletetheconversationwithKen:Iknow,butwhatcanIdoaboutit?I’vealreadytriedmybesttoprotecttheenvironment.Irecycle.Idon’t(2）____________thingsifIdon’twantthemanymore.I（3）__________thelightswhenIhavealeavearoom.Don’ttellmeIshouldn’ttravelbyplaneanymore!

第十七页，共21页。Ken:Iknow,butwhatcanIdMike:No,ofcoursenot.Butwecandomoretoprotecttheenvironment.Forexample,wecanhelpkeeptheaircleanbyplantingtrees.Trees(4)___________theenvironment.Inthisway,wecanreducetheharmofpollution.第十八页，共21页。Mike:No,ofcoursenot.ButwKen:Good!Icanenjoymyholiday,andwhenIcomeback,I’llplantsometrees!Mike:That’stheidea!Maybewecanalljoininandstartasmallforest!第十九页，共21页。Ken:Good!IcanenjoymyholModuletaskDiscussingwhatyoucandoaboutpollutionWorkingroups.Decidewhatkindofpollutionyouwanttotalkabout.Chooseasubjectthatyoucareaboutthemost.Itcouldbewaterpollution,airpollution,etc.Findoutm