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Unit4Globalwarming—Reading(教学设计)富源一中刘胜丽教学目标知识目标：(1)掌握阅读的方法和技巧，让学生了解地球温度上升的现象、原因及影响。(2)掌握文中“it”在强调句中的用法。能力目标：能较好地运用泛读和精度的阅读技巧，准确地从文中找到关键信息。德育目标：(1)通过学习，帮助学生树立“节约能源，保护环境”的主人翁意识。(2)关爱生命，爱护环境，学会竞争和合作，建立自信心和集体荣誉感。情感目标：通过学习调动学生的学习积极性，让学生树立正确的世界观和人生价值观。教学重点：提高学生对英语学习的兴趣和积极性，较好地掌握泛读和精读的方法。教学难点：如何让学生较好地掌握泛读和精读的方法，便把所学知识运用于高考中。教学方法：(1)以学生为主体，教师为主导，泛读和精读相结合。(2)采用讨论、协作、探究、竞争的教学模式，引导学生灵活运用所学知识。(3)评价激励表运用于教学：即对小组在整节课中的综合表现给打分让组与组之间有个比较，从而达到激励上进的效果。如下表所示：G代表Group;根据班级情况可分成8个小组组别参考度G1G2G3G4G5G6G7G8合作度表现度（竞争度）准确度遵纪度总分TeachingproceduresStep1:GreetingsandLead-inQuestions：(1)Areyouhot?(1)Comparedtothepastfewyears,what’stheweatherlikethisyear?(2)Whatcausestheglobalwarming?Humanactivityorarandombutnaturalphenomenon?(3)showsomepicturestothestudents.(设计意图：通过提问和图片展示引出本节要讨论的话题—全球在变暖。)Step2：Fast-readingReadingComprehensionILetthestudentsfastreadthethepassageandthenanswerthefollowingquestions.1.What’sthemaintopicofthearticle?2.Whowrotethemagazinearticle?Whatisnameofthemagazine?3.Whathascausedglobalwarming?4.Whatdoscientiststhinkmakestheearth’stemperaturegoup?5.Howdoes“greenhouseeffect”comeabout?Answers:1.It’saboutglobalwarming\thewarmingoftheearth.2.TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.3.Humanactivity.4.Theburningoffossilfuels.5.Itcomesaboutwhensmallamountsofgasesintheatmospheretrapheatfromthesunandthereforewarmtheearth.（设计意图：训练学生归纳、总结的能力）ReadingComprehensionII(pairwork)Readthearticleagain.Arethesestatementstrueorfalse(P27)?True(T)orFalse(F)questions.()1.Thetemperatureinthelastcenturydidn’tseemtoincreasemuch.()2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.()3.JaniceFosterbelievesshecanmeasurethefutureglobalriseintemperature.()4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.()5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.()6.Itisclearwhattheeffectsofglobalwarmingwillbe.Answers:1.T2.T3.F4.T5.T6.F（设计意图：训练学生积极参与、协作、竞争的能力）ReadingComprehensionIIIGetthestudentsreadthepassageagainandasksomestudentsanswerthefollowingquestions.1.Thepurposeofthefirstparagraphisto___.A.introducethewriterB.explainachangeC.introducethetopicD.raiseaquestion2.Thegraphsareusedto_____.A.illustratepointsbyprovidingevidenceB.tellthechangeoftemperatureC.tellthecontentofcarbondioxideintheairD.interestthereaders3.Greenhousegasesreferto_______.A.carbondioxideB.theburningoffossilfuelsC.byproductsoftheburningoffossilfuelsD.coal,naturalgasandoil4.Greenhouseeffect_____.A.isanaturalphenomenonB.happenswhenthere’stoomuchcarbondioxideC.doesgreatharmtohumanbeingsD.makeslifeforhumanbeingsbetter5._____foundouttheamountofcarbondioxideintheatmospherefrom1957to1997.A.Dr.JaniceFosterB.CharlesKeelingC.GeorgeHambleyD.SophieArmstrong6.WhichofthefollowingstatementsisTrue?A.Burningfossilfuelscausestheglobalwarming.B.Wewillhavemorefoodwithglobalwarming.C.Globalwarmingmeansdisasterstohumans.D.Moregreenhousegaseswillgatherintheatmosphere.Answers:1—5CACAB6.D设计意图：进一步训练和提升学生快速阅读，捕捉文中信息的能力。Step3：Careful-reading（Groupwork）Letthestudentsreadthepassagecarefullyanddiscussthefollowingquestionsingroups,thenfillinthechartbelow.Thewholeclasswillbe8groups.ThedifferentideasbetweenDr.JaniceFoster&GeorgeHambleyDr.JaniceFosterGeorgeHambleyCarbondioxidehascausedtheglobaltemperatureto(1)________.Anincreaseoffivedegreeswouldbea(2)____________andcouldbe(3)__________.Morecarbondioxideisa(4)______thing,whichmakescrops(5)__________andwillencourage(6)__________Fillinthechart:G1—(1)G2—(2)G3—(3)G3—(4)G5—(5)G6—(6)Comment:G7—(1)(2)(3)G8—(4)(5)(6)Answers:(1)goup(2)catastrophe(3)veryserious(4)positive(5)producemore(6)agreaterrangeofanimals设计意图：训练和提升学生精读的能力，同时激发他们积极参与、协作、竞争的热情和意识。Step4:Summary(1)Getthestudentsmasterthemethodoffast-readingandcareful-reading.(2)Getthestudentsdiscribethemainideaofthepassageusingtheirownwords.(3)Getthestudentslearntolivealow-carbonlife.Step5:Homework1.Prepareadebateingroups.2.SurftheInternetformoreinformationaboutglobalwarming.Step6:主要板书Unit4Globalwarming—ReadingQuestions:1.What’sthemaintopicofthearticle?2.Whowrotethemagazinearticle?Whatisnameofthemagazine?3.Whathascausedglobalwarming?4.Whatdoscientiststhinkmakestheearth’stemperaturegoup?5.Howdoes“greenhouseeffect”comeabout?清代“红顶商人”胡雪岩说：“做生意顶要紧的是眼光，看得到一省，就能做一省的生意；看得到天下，就能做天下的生意；看得到外国，就能做外国的生意。”可见，一个人的心胸和眼光，决定了他志向的短浅或高远；一个人的希望和梦想，决定了他的人生暗淡或辉煌。人生能有几回搏，有生不搏待何时！所有的机遇和成功，都在充满阳光，充满希望的大道之上！我们走过了黑夜，就迎来了黎明；走过了荆棘，就迎来了花丛；走过了坎坷，就走出了泥泞；走过了失败，就走向了成功！一个人只要心存希望，坚强坚韧，坚持不懈，勇往直前地去追寻，去探索，去拼搏，他总有一天会成功。正如郑板桥所具有的人格和精神：“咬定青山不放松，立根原在破岩中。千磨万击还坚劲，任尔东南西北风。”梦想在，希望在，人就有奔头；愿奋斗，勇拼搏，事就能成功。前行途中，无论我们面对怎样的生活，无论我们遭遇怎样的挫折，只要坚定执着地走在充满希望的路上，就能将逆境变为顺境，将梦想变为现实。实现人生的梦想，我们必须希望和拼搏同在，机遇和奋斗并存，要一如既往，永远走在充满希望的路上！