高二英语选修6第4单元学案.doc

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1、Unit4　GlobalwarmingPeriod1　WarmingUp，Pre－reading，ReadingLearningaims：1.Getstudentstoknowaboutglobalwarminganditseffect；2.Toenablethestudentstorealizewhatwecandoaboutglobalwarming.LearningimportantpointsToenablethestudentstolearnaboutglobalwarmingandt

2、odeveloptheirreadingability.LearningdifficultpointToenablethestudentstotalkaboutwhatweshoulddotopreventglobalwarming.Beforeclass（课前自主学习）I.重点单词1._________v.消费；消耗；耗尽2._________v.趋向；易于；照顾3_________n.大灾难；浩劫4._________adj.胡乱的；任意的5._________v.反对；反抗；与(某人)较量

3、6_________.n.洪水；水灾7._________v.同意；捐赠；订阅8._________n.燃料9._________n.量；数量10._________n.图表；坐标图；曲线图11._________v.陈述；说明12._________n.结果；后果；影响13._________n.资料；数据14._________v.看一下；扫视　II.重点短语1.comeabout_________2.keepon_________3.subscribeto_________4.beoppo

4、sedto_________5._________大量的6.________即使_7._________上升；增长；升起8_________依靠，依赖9_________温室效应10._________用光，耗尽Inclass（课上合作探究）LearningproceduresStep1　Warmingup1．Warmingupbyreadingandtalking：Readthroughtheexercise.Putstudentsingroupstotalkaboutwhatweuseene

5、rgyfor，discusswhatarethesourcesoftheseenergyandwhetherthefollowingsourcesarerenewableornon－renewable.________________________________________________________________ThingsthatuseenergySourcesofenergyRenewable/non－renewablelightsheatingtelevisioncasse

6、tteplayervideorecordercomputerfridgecoalstovehairdryer...oilnaturalgaswindpowersolarenergynuclearenergyhydro－electricpowerbiomassenergygeothermalenergytidalenergyStep2　Pre－reading1．Lookatthepictureofagreenhouseandaskstudentswhatagreenhouseismadeofand

7、whatitspurposeis.2．Askstudentswhattheythink“greenhousegases”areandwhattheythinkgreenhousegasesdo.Lookatthepictureaboveandexplainittotheirpartners.Step3　ReadingandcomprehendingTask1．SkimmingAskstudentstoreadthepassagequicklysoastogetthekeywordsandgene

8、ralideaofeachparagraphandanswerthefollowingquestions：(1)Whatisthemaintopicofthearticle?________________________________________________________________________(2)Whowrotethemagazinearticle？Whatisthenameofthemagazine?__________________________________