2019-2020年高中英语 Unit 4 Global warming Part II学案新人教版选修6

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1、2019-2020年高中英语Unit4GlobalwarmingPartII学案新人教版选修6一、【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?Whateffec

2、tsdoyouthinkgreenhousegaseshaveontheearth?Step2:SkimmingDividethepassageinto4partsandmatchtheparagraphsandthemainideas.Part1para___topara____DifferentattitudesamongscientiststowardsglobalwarmingPart2para___topara___It’suptoreaderstothinkanddecidewhetherpeopleshoulddosometh

3、ingaboutglobalwarming.Part3para___topara____HowglobalwarmingesaboutPart4para___topara____AgeneralintroductiontoglobalwarmingB.Thepassagemainlyintroducesthe_____________ofglobalwarmingandscientists’different__________towardsit.C.Whereisthispassagetakenfrom?A.atravelguideB.a

4、magazineabouttheenvironmentC.anewspaperaboutpoliticsD.achildren’sbookD.Thewriterofthepassageis__________Step3:CarefulreadingA:Readpart1andanswerthefollowingquestions:1.Whatisthepurposeofthefirstparagraph?______________________________________2.Whatisthegraphfor?___________

5、___________________________B:Readpart2andanswerthefollowingquestions:Whatisthemonlyacceptedreasonfortheincreaseintheearth’stemperature?Whatis“greenhouseeffect”?Decidewhetherthesentencesaretrueornot.①Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.()②Janice

6、Fosterbelievesthatshecanmeasurethefutureglobalincreaseintemperature.()③Theamountofcarbondioxideintheatmospherefrom1957to1997wasmeasuredaccurately.()④Greenhousegasesareharmfultohumanbeingsandweshouldtryourbesttoridtheworldofthem.()C:Readpart3andanswerthefollowingquestions:1

7、.Whatarethedifferentattitudestowardsglobalwarming?2.AccordingtosomescientistslikeGeorgeHambley,__________A.globalwarningisadisasterB.therewillbethedisappearanceofspeciesasaresultofhighlevelsofglobalwarming.C.Morecarbondioxidewilldoalotofgood.DHeisworriedabouthighlevelsofca

8、rbondioxideStep4.Post-reading1.Whataresomeofthewritingtechniquesareusedinthepassage?①givi