高中英語選修六 Unit 4-【精品課件】

精品課件歡迎下載高中英語選修六Unit4WordsstudyGlobalwarmingUnit4Warming-up&readingI2anoilrefineryanuclearpowerplantwindmillsacoalpowerstationsolarpanelsahydro-electricdam3RenewableEnergyRenewableenergysources,suchasthesun,wind,rain,andplantmatter,naturallyandcontinually"renew"themselves.4traptheheatfromthesunkeepitfromescapingwarmAgreenhouseHowdoesitwork?5Howdoesthisglobalwarmingcomeabout?Manburnsfossil____---producehugequantitiesofgreenhousegases,esp.___________---thegasestraph____fromthesunandthereforew____theearth.fuelscarbondioxideheatwarmGreenhouseGreenhouseEffectGreenhousegases6Skimthearticle:★★Whatarethenamesofthethreescientistsmentionedinthearticle?Whowrotethearticle?Whatisthenameofthemagazine?Tip:InEnglish,somenounsbeginwithacapitalletter,suchasnamesofpeopleandplaces,titlesofmagazines,newspapers,storiesandbooks,people’stitles,etc..FastReading7Whatisthewritingstyle?A.Expositive(說明文)B.Practical(應(yīng)用文)C.Argumentative(議論文)D.Narrative(記敘文)Theorganizationofanexpositiveessay:IntroductionAtitleBodyConclusionPara.1Para.2-5Para.68Lookthroughthemaintext:Para.1Para.2-5IIIPara.6IIIPara.7IV★★★IntroductionBodyConclusion9Matchthepartswiththemainideas:Explainhowglobalwarmingcomesabout.Listtwodifferentattitudesamongscientiststowardsglobalwarming.Introducethetopicofglobalwarming.●It’suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.Part1

Part2Part4Part3★★★10Matchthepartswiththewritingskills:Using

aquestion,leavingreaderstothinkovertheissueRaisingaquestionGivingexamples,makingcontrast(comparison)Givingexamples,usinggraphs,explanation★★★Part1Part4Part3Part211★★★The2graphsareusedtoexplainpointsbyproviding.evidenceevidenceorargument?Readthe2graphs:Detailedreading★★★★★★12The1st

graphshowstheglobaltbetween1860and.ThetemperatureianddecreasedoverthisperiodbutonthewholeitibyaroundonedegreeFahrenheit.Duringthistime,theearthreacheditsltemperatureinabout1910anditshighestin.Therewasasteadyincreaseinthetemperatureduringthe20yearsafter1980.Wecanseefromthegraphthattheearthhasbecomewsinceearlylastcentury.emperature2000ncreasedncreasedowest2000armerDetailedreadingReadsomethingmoreaboutthe2graphs:★★★13The2nd

graphshowstheamountofcdintheatmospherefromto1997.TheCO2csteadilyioverthisforty-yearperiod.Itwentupfrom315topartspmillion.arbonioxide1957ontentncreased370erTip:Whilereadingagraph,you’dbetterpayattentiontothenumbers.Detailedreading★★★14Trueorfalse?(P27)ReadingComprehension21.Thetemperatureinthelastcenturydidn’tseemtoincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesshecanmeasurethefutureglobalriseintemperature.4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.6.Itisclearwhattheeffectsofglobalwarmingwillbe.15Whatdothe3scientiststhinkaboutglobalwarming?

Dotheyagreewithoneanother?Readthearticlecarefully.★★★★

Theydon'tagreewithoneanother.Detailedreading16Theearthisbecomingwarmer.Inyouropinion,doesitmatter?Discussion:A:Weshalldosomethingaboutglobalwarming.B:Weshalldonothingaboutglobalwarming.Yourreasons…17AssignmentTalkabouttheeffectsofglobalwarming.Thinkaboutwhatindividualsshoulddo.Callonpeopletoprotecttheearthanddesignaslogan(口號）.Everyonecanmakeadifference18精品課件歡迎下載長度單位與面積單位的比較長度單位面積單位與的比較人教新課標(biāo)三年級數(shù)學(xué)下冊我們的朋友厘米平方分米米平方厘米平方米分米長度單位面積單位與的比較

小組合作學(xué)習(xí)1、下面哪個圖形是1厘米，哪個圖形是1平方厘米？2、比一比，它們有什么不同？1（）1（）厘米平方厘米是一條線段。1厘米是一個長度單位，用來測量一個物體的長短是多少厘米。是一個邊長1厘米的正方形。1平方厘米是一個面積單位，用來測量一個物體表面的大小是多少平方厘米。自主學(xué)習(xí)1、在紙上表示出1分米和1平方分米？2、說說它們有什么不同？它是一條線段，是長度單位。用來表示物體有多長。1分米：1平方分米：它是邊長1分米的正方形，是面積單位。用來表示物體表面的大小。它是一條線段。是長度單位，用來表示物體有多長。1米：1平方米：它是邊長1米的正方形。是面積單位，用來表示物體表面的大小。說說1米和1平方米有什么不同？厘米分米米平方厘米平方分米平方米圖形單位名稱表示的意義整理：物體表面的大小一個面面積單位物體有多長一條線段長度單位根據(jù)下面的測量要求，用長度單位還是面積單位。1、量文具盒的長短用（）單位；2、量課桌面的大小用(）單位；3、量筆記本封面的大小用（）單位4、量鉛筆