高二英语选修6第四单元_课件reading.ppt

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1、Unit4ReadingITheearthisbecomingwarmer—butdoesitmatter?Fastreading1.Whatisthemaintopicofthearticle?→Globalwarming.2.Whatarethenamesofthethreescientistsmentionedinthearticle?→DrJaniceFoster,CharlesKeeling,GeorgeHambley.CarefulreadingPara1~31.Whowrotethemagazinearticle?Whatisthen

2、ameofthemagazine?2.Whyistheearthbecomingwarmer?3.Whataregreenhousegases?4.What’sgreenhouseeffect?1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?→SophieArmstrong→EarthCare2.Whyistheearthbecomingwarmer?→Itishumanactivitythathascausedthisglobalwarming.3.Whataregreenhouse

3、gases?→Somebyproductsoftheburningoffossilfuelslikecoal,naturalgasandoiltoproduceenergyarecalledgreenhousegases.4.What’sgreenhouseeffect?→Itiswhensmallamountsofgasesintheatmosphere,likecarbondioxide,methaneandwatervapour,trapheatfromthesunandthereforewarmtheearth.Para4~5Whofoun

4、douttheamountofcarbondioxideintheatmospherefrom1957to1977?Whathasresultedintheincreaseincarbondioxide?1.Whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977?A.Dr.JaniceFoster.B.CharlesKeeling.C.GeorgeHambley.D.SophieArmstrong.B〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓

5、〓〓2.Whathasresultedintheincreaseincarbondioxide?Itistheburningofmoreandmorefossilfuelsthathasresultedinthisincreaseincarbondioxide.〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓Para6~71.WhatisthedifferentideasbetweenDr.JaniceFoster&GeorgeHambley?Dr.JaniceFosterGeorgeHambleyCarbondioxide

6、hascausedtheglobaltemperatureto__________.Anincreaseoffivedegreeswouldbea____________andcouldbe______________.Morecarbondioxideisa__________thing,whichmakescrops__________andwillen-courage___________________________.goupcatastropheveryseriouspositiveproduceagreaterrangeofanima

7、ls2.Theauthorprobablyagreesthat________A.actuallyglobalwarmingisgoodforman.B.weshoulddonothingabouttheglobalwarming.C.catastropheswillhappeniftheglobekeepsonwarming.D.alotremainstobefoundoutabouttheeffectsofglobalwarming.D〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓PostreadingTell

8、TrueorFalse(1)Thetemperaturelastcenturydidn’tincreasemuch.()(