高二英语课件高二英语上学期m6unit4高二英语课件

Pre-readingFastreadingDetailreadingDiscussionHomeworkWarming-upPre-readingDoyouknow?GreenhouseGreenhouseEffectGreenhousegasesFirstReadingFinishEx.1graspthestructureofthearticle•Atitle;•Afirstparagraph•(thatrunsacrossthepageandisinbold);•Themaintextisintwocolumns;•Diagrams;•Twoquotes•Wecangetanideaofwhatamagazinearticleisaboutbyglancingat_________,________________,___________,and____________________thetitlethefirstparagraphthediagramstheenlargedquotes1.SophieArmstrong.EarthCare5.Globalwarming/thewarmingoftheearth.4.ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1997.3.Therearesomeverydifferentattitudesamongscientiststowardsthisissue.Somethinktheeffectswillbeterrible,whilesomeothersbelievethatweshouldnotworryaboutit.2.DrJaniceFoster,CharlesKeeling,GeorgeHambley.SecondReadingDividethewholepassageinto4partsfinishEx.2ReadafterthetapeDetailedReadingSumupthemainideaofeachpartExercise21.Thetemperaturelastcenturydidn’tincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesthatglobalwarmingiscausedbyburningfossilfuels.4.Naturalgasisagreenhousegas.5.Carbondioxideisabyproductofburningfossilfuels.FFTTExercise26.PeopleacceptCharlesKeeling’sdatabecausehetookaccuratemeasurements7.Floodingcouldbeoneoftheeffectsoffutureglobalwarming.8.GeorgeHambleybelievesscientistsarejustguessingabouttheeffectsofglobalwarming.9.GeorgeHambleyisworriedabouttheeffectsofcarbondioxideonplantgrowth.10.Itisclearwhattheeffectsofglobalwarmingwillbe.TTFTPost-readingtaskPleasefillintheformandshareyourideaaboutglobalwarmingwithyourpartners.DifferentideastowardsglobalwarmingDr.JaniceFosterGeorgeHambleyCarbondioxidehascausedtheglobaltemperatureto______.Anincreaseoffivedegreeswouldbea_____andcouldbe_______Morecarbondioxideisa______thing,whichmakescrops______andwillencourage___________.HomeworkFinishEx.1&2onpage28Part.3let’sdotheexercises