高中英語(yǔ)選修六 Unit 4-【精品課件】

精品課件歡迎下載高中英語(yǔ)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(shuō)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(hào)）.Everyonecanmakeadifference18精品課件歡迎下載長(zhǎng)度單位與面積單位的比較長(zhǎng)度單位面積單位與的比較人教新課標(biāo)三年級(jí)數(shù)學(xué)下冊(cè)我們的朋友厘米平方分米米平方厘米平方米分米長(zhǎng)度單位面積單位與的比較

小組合作學(xué)習(xí)1、下面哪個(gè)圖形是1厘米，哪個(gè)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(gè)長(zhǎng)度單位，用來(lái)測(cè)量一個(gè)物體的長(zhǎng)短是多少厘米。是一個(gè)邊長(zhǎng)1厘米的正方形。1平方厘米是一個(gè)面積單位，用來(lái)測(cè)量一個(gè)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(shuō)說(shuō)它們有什么不同？它是一條線段，是長(zhǎng)度單位。用來(lái)表示物體有多長(zhǎng)。1分米：1平方分米：它是邊長(zhǎng)1分米的正方形，是面積單位。用來(lái)表示物體表面的大小。它是一條線段。是長(zhǎng)度單位，用來(lái)表示物體有多長(zhǎng)。1米：1平方米：它是邊長(zhǎng)1米的正方形。是面積單位，用來(lái)表示物體表面的大小。說(shuō)說(shuō)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(gè)面面積單位物體有多長(zhǎng)一條線段長(zhǎng)度單位根據(jù)下面的測(cè)量要求，用長(zhǎng)度單位還是面積單位。1、量文具盒的長(zhǎng)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