山东省沂水一中高二英语 Unit 4 the third period课件(27) 新人教版.ppt

unit4globalwarming unit4 thethirdperiod teachingmethodssituationalteachingmethod cooperativelearningmethod programmedteachingmethod task basedandassessmentteachingmethods teachingaimsanddemands 一 topic globalwarming pollution theimportanceofprotectingtheearth二 vocabulary三 functions agreementanddisagreement blameandcomplaint四 grammar theuseof it arrangementofteaching thefirstperiod warmingupthesecondperiod languagepointsofreadingthethirdperiod readingthefourthperiod learningaboutlanguageandlanguagepointsofusinglanguagethefifthperiod usinglanguagethesixthperiod grammartheseventhperiod exercises 1 checkupdailyexercises theearthisbecomingwarmer butdoesitmatter fastreading glanceatthearticleandanswerthequestion ithasatitle afirstparagraphthatrunsacrossthepageandisinbold themaintextintwocolumns graphs diagrams twoquotes whatisthestructureofamagazinelikethisandhowisthetextorganized readingcomprehension readthearticleagainandfinishcomprehendingonpage27 sophiearmstrongwrotethemagazinearticle thenameofthemagazineis earthcare 2 whatarethenamesofthethreescientistsmentionedinthearticle theyaredr janicefoster charleskeelingandgeorgehambley 1 whowrotethemagazinearticle whatisthenameofthemagazine 3 whatdotheythinkaboutglobalwarming dotheyagreewithoneanother therearesomeverydifferentattitudesamongscientiststowardsthisissue somethinktheeffectswillbeterrible whilesomeothersbelievethatweshouldnotworryaboutit 4 whatarethetwographsabout graph1showsthetemperatureincreaseofonedegreefahrenheitbetween1860to2000 graph2showsthecarbondioxidecontentintheatmospherefrom1957to1997 graph1 graph2 5 whatisthemaintopicofthearticle globalwarming thewarmingoftheearth 1 thetemperaturelastcenturydidn tincreasemuch 2 everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans 3 janicefosterbelievesthatglobalwarmingiscausedbyburningfossilfuels 4 naturalgasisagreenhousegas 5 carbondioxideisabyproductofburningfossilfuels 6 peopleacceptcharleskeeling sdatabecausehetookaccuratemeasurements readthearticlecarefully telltrueorfalse t t f t t f detailed reading readthearticleindetailsandfinishthefollowingtask listening 1 whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977 a dr janicefoster b charleskeeling c georgehambley d sophiearmstrong listentothereadingpassageanddosomechoices 2 buttherearesomeverydifferentattitudesamongscientiststowardsthisissue issue heremeansthesameastheonein a iboughtthenewstampthedayofitsissue b theyaretalkingaboutoneofthekeyissuesintheelectioncampaign c thegovernmentisexpectedtoissueastatementabouttheelection d themagazinehas12issueseachyear 3 theauthorprobablyagreesthat a actuallyglobalwarmingisgoodforman b weshoulddonothingabouttheglobalwarming c catastropheswillhappeniftheglobekeepsonwarming d alotremainstobefoundoutabouttheeffectsofglobalwarming questionnaires i 1 doessophiearmstrongsupportaclearopinion 2 doesgeorgehambleybelievethatweshouldworrymuchabouttheglobalwarming no hedoesn tstateitclearly no hedoesn t 3 howhastheglobalwarmingcomeabout humanactivity burningoffossilfuels greenhouseeffect greenhousegases weneedthosegases hugequantitiesofextracarbondioxide from1957to1997 fromaround315partspermilliontoaround370partspermillion 4 whataretheeffectsofglobalwarming encourageagreaterrangeofanimals thesealeveltorise severestorms droughts famines thespreadofdiseases anddestructionofspecies makeplantsgrowfaster cropswillproducemore mainidea part1 para1 introduceadebateovertheissueofglobalwarming part2 para2 part3 para3 8 part4 para9 illustratehowglobalwarmingcomesabout listtwodifferentattitudesamongscientiststowardsglobalwarming it suptoreaderstothinkanddecidewhetherpeopleshoulddosthaboutglobalwarmingornot 4parts 1 whatisthepurposeoftheparagraphthatisinbold tointroducethetopic toillustrate 阐述 pointsbyprovidingevidence 2 whatarethediagramsfor questionnaires ii 3 whyaretheretwoquotes becausetheyareimportantorinterestingpoints theiraimistoattractyourattentionandtomakeyoureadthem andthereforetomakeyouinterestedenoughtoreadthewholearticle itfunctionsasaconclusionbyaskingthereadertoreflectonthemajorthemeofthetextandtopredictwhatmighthappeninthefuture 4 whatisthepurposeofthela