最新外研版九年級(jí)上冊(cè)英語(yǔ)Module12-Unit3課件

Module122023/6/281Module12Saveourworld2023/6/282Unit3Languageinuse2023/6/283Reusemeans“useagain”.Thoughpollutionisheavynow,Idon’tthinkit’shopeless.Languagepractice2023/6/284Makeanewwords.JointhepartsofwordsinBoxAwiththewordsinBoxB.Youneedtousesomeofthepartsmorethanonce.

A–able-fulim--lessre-un-Bcarecollecthopepossibleuse usualwantedwastecollectable,usable,careful,hopeful,useful,wasteful,impossible,careless,hopeless,useless,reuse,unusual,unwanted2023/6/285Nowworkingroups.PlaytheguessinggameEnglishforFun.EnglishforFunfullofcare____________2.canbecollected____________3.fullofhope____________4.withoutanyhope____________5.notpossible____________carefulcollectablehopefulhopelessimpossible2023/6/2866.notusual____________7.withoutanyuse____________8.useagain____________9.notwanted____________10.makingalotofwaste____________unusualuselessreuseunwantedwasteful2023/6/287Sometimesifyouknowthemeaningofthepartsofaword,youcanworkoutthemeaningofthewholeword.re+new+able;re=again,able=canberenewable=canbenewagainLearningtolearn2023/6/2881.合成法將兩個(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、動(dòng)詞等。例如：afternoon,sportsman,blackboard,sportsperson,newspaper,構(gòu)詞法2023/6/289airplane,classmate,grandfather等就是通過(guò)合成構(gòu)詞法構(gòu)成的名詞；kind-hearted,middle-aged,hard-working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)成的單詞。2023/6/28102.派生法通過(guò)在詞根前面加前綴或在詞根后面加后綴構(gòu)成一個(gè)新詞的方法叫作派生法。要通過(guò)派生法理解和記憶單詞,我們需要掌握常見(jiàn)的前綴和后綴及派生規(guī)律。2023/6/2811(1)常見(jiàn)前綴前綴含義例詞dis-不disagree,dislikeen-使……處于某種狀態(tài)enable,enrichim-,in-不impossible,impatient,inexpensiveinter-在……之間,相互international,interconnect2023/6/2812前綴含義例詞mis-錯(cuò)誤地mislead,misunderstandnon-不,非non-smoker,non-nativere-再,重復(fù)rewrite,retellun-不unable,unhappy,unpopular2023/6/2813(2)常見(jiàn)后綴后綴功能例詞-er,-or構(gòu)成名詞teacher,worker,visitor-ianmusician-ingbuilding,painting,shopping,meaning-istartist,scientist2023/6/2814后綴功能例詞-ment構(gòu)成名詞agreement,government-nesscoldness,happiness,illness-thtruth,warmth-tioncompetition,education,information,invitation-tyactivity,safety2023/6/2815后綴功能例詞-able,-ible構(gòu)成形容詞comfortable,eatable,enjoyable,possible,-alenvironmental,international,national,traditional-fulcareful,helpful,useful-iveactive,expensive-lesscareless,helpless,homeless,useless2023/6/2816后綴功能例詞-ly構(gòu)成形容詞friendly,lovely,monthly,weekly-ousdangerous,famous-teen構(gòu)成數(shù)詞eighteen,fifteen,seventeen-thfifteenth,fifth,fortieth,seventh-tyforty,sixty,twenty-ly構(gòu)成副詞badly,carefully,carelessly,happily,quickly2023/6/2817(3)派生規(guī)律由一個(gè)詞根加上相應(yīng)的詞綴可以派生出名詞、形容詞、副詞等，掌握派生規(guī)律對(duì)擴(kuò)充詞匯有很大幫助。例如：由interest可以派生出：

uninterestinginterest—interesting—interestinglyinterested—uninterested2023/6/2818由help可以派生出：

helpless—helplesslyhelp—helpful—helpfully由able可以派生出：

enableableunableabilitydisable2023/6/28193.轉(zhuǎn)化法英語(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。常見(jiàn)的轉(zhuǎn)化有：(1)動(dòng)詞轉(zhuǎn)化為名詞

—Let’stalkaboutitmore.

咱們?cè)僬務(wù)勥@件事吧。

—Ithinkwe’dbetterfinishthetalk

now.我想我們最好現(xiàn)在結(jié)束談話。2023/6/2820(2)名詞轉(zhuǎn)化為動(dòng)詞

Shegavemeacupofwater.

她給了我一杯水。

Youshouldwatertheflowerstwiceaday.

你應(yīng)該每天給這些花澆兩次水。2023/6/2821(3)形容詞轉(zhuǎn)化為名詞

Shewaswearingablackdress.

她穿著一條黑色的裙子。

Thegirlinblacklooksverybeautiful.

那個(gè)穿黑衣服的女孩看上去很漂亮。2023/6/2822Completethesentenceswiththewordsinthebox.hopefulimpossiblereuseunhealthywastefulPollutedwateris____________.2.Itis_________tothrowsomuchfoodaway.unhealthywastefulExercises2023/6/28233.Ifyoulookafterthingswell,youmay________someofthemlater.4.Itis___________tocleanupthewholeriverinsuchashorttime.5.Ifwepayattentiontopollutionnow,thefuturewillbe__________.reuseimpossiblehopeful2023/6/2824Completethetable.NounVerbAdjectiveAdverbuseful/uselesshopehopefully/hopelesslypollution——water————waste————usually/unusuallyuseuseusefully/uselesslyhopehopeful/hopelesspollutepolluted/unpollutedwaterwastewasteful/wastedwastefullyusual/unusual2023/6/2825CompletethesentenceswiththecorrectformofthewordsinActivity3.Shewashopefulthathernewjobwouldmakehermoresuccessful.Thefactory___________theriver,andthefishdied.2.Weoftenwalkinthecountryside.Itisa(n)_______activityforus.pollutedusual2023/6/28263.Donotusesomuchwater.Itisvery__________.4.Tokeeptheflowersgrowing,youneedto_________themonceaday.wastefulwater2023/6/2827Completethesentences.Alunchboxisaboxthatyoukeepyourlunchin.A___________isacardthatyouwriteononesideofandsendtosomeonebypost.2.A___________isaroomwhereyouhaveclassesatschool.postcardclassroom2023/6/28283.A___________isabookthathas oneormorestoriesforchildren.4.A____________isablackboard thatisusedatschoolforwritingon withchalk.storybookblackboard2023/6/2829Lookatthepicturesandanswerthequestions.Workinpairs2023/6/2830Whatkindsofthingscanberecycled?2.Howcanthesethingsbereused?3.Howdoesthishelptheenvironment?4.Haveyoueverrecycledorusedthingsthatcanberecycled?How?2023/6/2831Completetheconversationwiththecorrectformoftheexpressionsinthebox.begoodforthrowawayturnoffworryabout2023/6/2832Mike:IhearyouareofftotheCaribbeanforaholiday!Luckyyou!Butaren’tyou_______________thepollutionthatsuchlongplanejourneymaycausefortheenvironment?Ken:Iknow,butwhatcanIdoaboutit?I’vealreadytriedmybesttoprotecttheenvironment.worriedabout2023/6/2833Irecycle.Idon’t____________thingsifIdon’twantthemanymore.I____________thelightswhenIleavearoom.Don’ttellmeIshouldn’ttravelbyplaneanymore!throwawayturnoff2023/6/2834Mike:No,ofcoursenot.Butwecandomoretoprotecttheenvironment.Forexample,wecanhelpkeeptheaircleanbyplantingtrees.Trees______________theenvironment.Inthisway,wecanreducetheharmofpollution.aregoodfor2023/6/2835Ken:Good!SoIcanenjoymyholiday,andwhenIcomeback,I’llplantsometrees!Mike:That’stheidea!Maybewecanalljoininandstartasmallforest!2023/6/2836Listenandcheck(√)thetruesentences.1.ItisOKtothrowusedthingsaway.Lookingafterthemtakesalotoftime.2.Donotthrowawaythingsmadeofglass,plasticandpaper,butrecyclethemwhenpossible.3.Takeabagwhenyougoshopping.Listening√√2023/6/28374.Producingelectricityandusingoilwillnotcausepollution.5.Turnofflightswhenyoudonotneedthem.6.Rideabikeorwalk,anddonotoftendriveyourcar.√√2023/6/2838Listenagainandcompletethetable.AdviceReasons1.Don’tthrowawaythingsmadeof_______________________,but_______them.Throwingthingsawayiswasteful.2.__________yourplasticbagswhenyoucanand__________withyouwhenyougoshopping.Plasticbags__________recycle.glass,plasticandpaperrecycleReusetakeabagarehardto2023/6/2839AdviceReasons3.Uselesselectricityandoilto_______________.4.Don’tleavelightsonand_______________.5.____________anddonotoftendriveyourcar.Producingelectricityandusingoilmaycause___________.reducepollutionwasteelectricityWalkorcyclepollution2023/6/2840AroundtheworldEarthHour2023/6/2841Readthepassageandanswerthequestions.WhenisEarthHourheldeachyear?EarthHourisheldtowardtheendofMarcheachyear.WhydopeopleswitchoffthelightsduringEarthHour?Theydothistoshowtheirawarenessofclimatechange.2023/6/2842WhenandwherewasthefirstEarthHourheld?ThefirstEarthHourwasheldin2007inSydney.2023/6/2843Whichcitytakepartintheeventtoday?Moreandmorecitiesaretakingpartintheevent,suchasBeijing,London,RomeandNewYork.2023/6/