湖北省宜昌市高中英语unit4globalwarmingpartii学案（无答案）新人教版选修6

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1、Unit4GlobalWarmingPartII:Reading一、【学习目标】1.掌握文中重点词汇和重难点句。2.了解全球变暖和气候的关系，树立环保意识。二、【自主预习】Step1:Pre-readingAskthestudentstolookatthepictureinPre-readingandanswerthefollowingquestions:1・Whatdoyouseeinthepicture?2.Whatisitusedfor?3.Whataregreenhousegases?Wha

2、teffectsdoyouthinkgreenhousegaseshaveontheearth?Step2:SkimmingDividethepassageinto4partsandmatchtheparagraphsandthemainideas・Part1paratoparaDifferentattitudesamongscientiststowardsglobalwarmingPart2paratoparaTt，suptoreaderstothinkanddecidewhetherpeople

3、shoulddosome!hingaboutglobalwarming・Part3paratoparaHowglobalwarmingcomesaboutPart4paratoparaAgeneralintroductiontoglobalwarmingB.Thepassagemainlyintroducestheofglobalwarmingandscientists'differenttowardsit.C・Whereisthispassagetakenfrom?A・atravelguideB.

4、amagazineabouttheenvironmentC.anewspaperaboutpoliticsD.achildren"sbookD.ThewriterofthepassageisStep3:CarefulreadingA:Readpart1andanswerthefollowingquestions:1.Whatisthepurposeofthefirstparagraph?2・Whatisthegraphfor?B:Readpart2andanswerthefollowingquest

5、ions:Whatisthecommonlyacceptedreasonfortheincreaseintheearth"stemperature?Whatisugreenhouseeffect”?Decidewhetherthesentencesaretrueorn()t・①Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans・()②JaniceFosterbelievesthatshecanmeasurethefutur

6、eglobalincreaseintemperature.()③Theamountofcarbondioxideintheatmospherefrom1957to1997wasmeasuredaccurate1y.()④Greenhousegasesareharmfultohumanbeingsandweshouldtryourbesttoridtheworldofthem.()C:Readpart3andanswerthefollowingquestions:1.Whatarethediffere

7、ntattitudestowardsglobalwarming?2・Accordingtosomescientists1ikeGeorgeHambley,A.globalwarningisadisasterB.therewillbethedisappearaneeofspeciesasaresultofhighlevelsofglobalwarming.C・Morecarbondioxidewilldoalotofgood.DHeisworriedabouthighlevelsofcarbondio

8、xideStep4.Post-reading1.Whataresomeofthewritingtechniquesareusedinthepassage?①givingexamples②usinggraphs®makingcontrast④listingsomefiguresA.①③④B.①②③c.①②③④D.②③④2.Whatisthewriter"sattitudes?A.subjectiveB.criticalC.opposedD.objectiveStep5.