天津市滨海新区塘沽第二中学九年级英语上册 Module 6 Save our world Unit 3 Language in use教学课件 外研版.ppt

module6saveourworld unit3languageinuse 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 grammar 1 表示否定意义 无 不 的前缀 impolite impossible un in dis im il unfair unhappy inactive inhuman indirect disagree disappear illegal 前缀 2 表示程度 大小的前缀 super over mini under superstar supermarket superman superpower overhead overeat overuse minibus miniskirt minicar underground underdevelop 前缀 3 表示 再 的前缀 re rewrite reuse recycle 前缀 4 表示 向 背 的前缀 pro anti pro chinese pro american anti war 反战 anti pollution 5 表示 整个 完全 意思的前缀 al 表示 完整 完全 alone almost over 表示 完全 全 overall overflow 充满 前缀 able表示 可能 易于 适合于 构成形容词 如 renewable eatable 可吃的 lovable 可爱的 comfortable movable 可移动的 后缀 常见的后缀 2 ful表示 充满 的 具有 性质的 构成形容词 如 helpful hopeful powerful useful careful beautiful 后缀 3 less与 ful相反 表示 少的 不足的 构成形容词 如 helpless hopeless powerless useless careless 1 动词变名词 ation ment al ee er or satisfaction education realization development movement arrival refusal trainee employee teacher worker visitor sailor 让我们来看一些不改变词根的基本意义 而是改变了词性的后缀 2 形容词变名词 ness ity ism happiness meanness carelessness ability possibility marxism criticism 3 名词 形容词变动词 ify ize en beautify simplify realize quicken widen sharpen 4 名词变形容词 y ish some ous ful windy rainy sandy foolish feverish handsome troublesome dangerous humorous helpful careful peaceful wecaneasilyfindsuchsceneseverywhereinbigcities peopleistryingtodealwithrubbishnow 1 makenewwords jointhewordsinboxawiththepartsofwordsinboxb fullofcare acarecollectdonehopepossibleusualusedwantedwaste b able fulim lessre un careful 1canbecollected 2notdone 3fullofhope 4withoutanyhope 5notpossible 6notusual 7notused 8usedagain 9notwanted 10makingalotofwaste collectable undone hopeful hopeless impossible unusual unused reused unwanted wasteful 2 matchtheunderlinedwordswiththeirmeanings 1pollutedwaterisnothealthy 2it ssomethingwecanuseagain 3thewaterintheriverwasverydirty 4it snottruethatwedon tlistentostudents 5itwasnotpossibletocleanupthewholeriver 6thepeopleonthemountaintopwerenotcomfortable areusablebuncomfortablecunhealthyduncleaneimpossiblefuntrue c a d f e b 3 completethetable electricity electric energy energetic environmental hopeless hope hope pollution polluted serious seriously nation nationally unusual environmentally waste worriedly wastefully wasteful worried worry 4 completethesentenceswiththecorrectformofthewordsinactivity3 1theyareworkingvery toreducewaste 2thesituationis wecan tdoanythingtomakeitbetter 3thefactory theriver andthefishdied 4wedon toftenwalkinthecountry it sa n activityforus 5don t everythingwillbeallright 6don tusesomuchwater it svery energetically hopeless polluted unusual worry wasteful 5 workinpairsandtalkaboutthepicture 1whatkindofthingscanberecycled 2howcanthesethingsbereused 3howdoesthishelptheenvironment 4doyoueverrecycle oruserecycledmaterial how 6 readtheideasonprotectingtheenvironment puttheminthecorrectcolumninthetable adon tbuyanythingmadefromendangeredanimalsorplants bglassbottlesandnewspaperscanbetakentorecyclingcentersandreused cdon tboilmorewaterthannecessary ddon ttakenewplasticbagsfromtheshopreuseyouroldones eturnofflightswhenyoudon tneedthem fuseabicycleorwalkinsteadofusingthecar nowlistenandcheck c a d f e b 7 listenagainandanswerthequestions 1whyshouldyoureuseplasticbags 2nametwoadvantagesofusingabicycleorwalkinginsteadofusingacar becausetheyarehardtorecycle thereisnopollutionandit sagoodkindofexercise 3whydidsomeanimalsdieout 4howcanwestopsomepeopletryingtokillorsellendangeredanimalsandplants becausepeoplehavecutdownalotoftreesandpollutedtherivers neverbuyanythingmadefromendangeredanimals 8 workinpairs discussthequestion whichoftheideasdoyouthinkyouwouldfindeasiest mostdifficulttouseinyoureverydaylife why 9 completetheconversationwiththecorrectformofthephrasesinthebox mike ihearyou reofftothecaribbeanforaholiday luckyyou butaren tyou 1 thedangersofsuchlongflightsontheenvironmentken whyshouldibeworried mike planescausealotofpollution begoodforhearoflookafterthrowawayturnoffworryabout worriedabout ken iknow butwhatcanidoaboutit ialreadytrymybesttoprotecttheenvironment irecycle idon tjust 2 thingsifidon twantthemanymore i 3 thelightswhenileavearoom don ttellmeweshouldn ttravelbyplaneanymore mike no ofcoursenot butwecandosomethingtopr0tecttheenvir0nment haveyou 4 throwaway turnoff heardof it sanenvironmentalgroup ithelpsto 5 trees byplantingmoretrees wecanhelpkeeptheairclean becausetrees 6 theenvironment inthisway wecanreducethedangersofpollution ken good soicanenjoymyholiday andwhenicomeback i llplantsometrees mike that stheidea maybewecanalljoininandstartasmallforest lookafter aregoodfor moduletask discussingwhatyoucandoaboutpollution workingroups decidewhattypeofpollutionyouwanttotalkabout choosesomethingthatisveryimportanttoyou itcouldbewaterpollution airpollution waste cuttingdownforests etc findoutabitmoreinformationaboutyoursubject lookituponthewebsiteorinbooks discussyourtopic takeitintur