高中英语-Disappearing Ice Leads to Hungrier Bears教学设计学情分析教材分析课后反思

教学设计Learningaims1.Getthemainideaofthetext2.DevelopthesubjectaccomplishmentofprotectingwildanimalsTeachingProcedureStep1Fast-readingChoosethemainideaofeachpart.Part1(Para1)A.DependenceononepreyspeciesmakesbearseasilyhurtPart2(Para2-5)B.Pagano’sstudyanditsfindingsPart3(Para6)C.ClimatechangecauseshungrierpolarbearsStep2Careful-reading1.Choosethebestanswertocompletethesentences.(1)Theiceisforminglaterintheautumn,whichcausesbearstoswimlongdistancesto_______.(2)ThebearswerefittedwithGPScollarsthathadcamerasto______.(3)Thevideosdisplayedthatfourofthefemalesweren’tableto_______.(4)Onebearevenjumpedintotheseainafailedattemptto_______.A.recordpoint-of-viewvideosofeachB.catchasealswimmingbyC.gettoanyremainingiceD.catchasingleseal答案：CADB2.ReadParagraph1andanswerthequestion.Howdobearsreactwhentheiceismeltingsoonerandforminglater?(1)Bearswalkorswimlongdistancestogettoanyremainingice(2)Ortheystayonlandlonger,spendingthesummerandtheautumnfasting,existingontheirfat.3.ReadParagraph2andputtheeventinorder.A.ThebearswerefittedwithGPScollars.B.Bloodandurinesamplesweretakenagainandthevideoandotherdataweredownloaded.C.Researcherscaughtninefemalebears.D.Theywereallre-caught.答案：CADB4.ThefiguresinParagraph3showthat_______.A.thesepolarbearswerelazyB.previousstudieswerecompletelywrongC.thefemalesweren’tgoodatcatchingsealsD.itwashardforthebearstoeatwell5.InParagraph4,Paganoguessed,“Shemighthavebeenhopeless”,whichexpressionsshowthatthebearsstruggledtogetfoodinParagraph2-4?InParagraph2:Onebearhadmoved155milesawaybythattime.InParagraph3:Thedatashowedthebearswereactiveabout35percentofthetime.InParagraph4:Thisbearevenjumpedintotheseainafailedattempttocatchasealswimmingby.6.WhatcanweinferfromParagraph3andParagraph4thatpolarbearshavehighenergymetabolism？InParagraph3:Theyburnedthrough12,325caloriesaday,muchofitfromtheirbodyreserves.That’sabout60percentmorethanpreviousstudieshadestimated.Measurementsshowedthoseanimalslost10percentormoreoftheirbodyweight.InParagraph4:Onebearlostcloseto44pounds,includingherleanmuscle,in10days.7.Whyarepolarbearseasilyhurt?Becausetheyareintheiralmosttotalrelianceononepreyspecies(seals)./Becausetheyarenearlydependentononepreyspecies(seals).Step3SummaryClimatechangeisheating1.______theArcticfaster,andseaiceisreducing14percentperdecade.2.________(gain)food,polarbearswalkorswimlongdistancestogettoany3.________(remain)ice;ortheystayonlandlonger,andexistontheir4.______(store)fat.Pagano’sstudy5._______(show)thatbearswereactiveabout35percentofthetime,yettheyburnedmorecalories6.______previouslyestimated.Onebearevenlostcloseto44pounds,7.________(include)herleanmuscle,in10days.Stevensaiditwasareally8.________(influence)study.Polarbearsare9._______(easy)hurtduetototaldependenceon10._______(seal).答案：1.up2.Togain3.remaining4.stored5.showed6.than7.including8.influential9.easily10.sealsStep4Role-playingAyoungbearnamedLittleWhitelosthismotherowingtoalackoffood.Whenhewassadandhopeless,hemetwiththeexpertPagano,andtheystartedadialogue.Pleasemakeupadialogueingroups,aimedtoraisetheawarenessofwildlifeprotection.Homework：Pleasewriteatleastthreemeasurestostoporslowdownglobalwarming.学情分析高二学生，具有较好的英语水平，感知能力较强。本课具有较强的自主性，因为Polarbears这一话题对学生来说有较强的吸引力，而且学生有较强的表现欲。学生现有的水平，能够听懂有关野生动植物护话题的课堂指令并能用简单的英语交流；对野生动物的现状有一定的了解。上课前，通过课前预习任务的完成，尤其是通过完成有关野生动物保护的调查问卷，以加深学生对已学相关内容的理解。通过阅读课的学习，学生对野生动物的现状有了进一步的了解，并对保护措施有自己的观点及想法，但对于具体词汇的选用有一定的困难。效果分析本节课主要分为三个环节依次开展：在导入环节，以健康和病态的北极熊图片作对比，引出学生对瘦弱北极熊的同情和对文章内容的兴趣，直奔主题。在Fastreading环节，设问直接，学生通过快速通读文章，能准确地找出各部分的正确主旨大意。在Carefulreading这一环节，涉及到的内容较多，学生需要积极思考，仔细查找文章细节才能准确得到答案，此环节还涉及到锻炼学生提炼语言的能力，这是一个挑战。因文章内容较多，时间有限，不能精确到词语和句式的深入学习和练习。教材分析本节课的中心话题是野生动物保护。阐述了野生动物保护的重要性和紧迫性，激发了读者保护野生动物的信心和决心，结合课本内容，引领学生们联想到全球所共同关注的保护环境，保护地球，保护所有生物的话题。本单元涉及的内容包括濒临灭绝的野生动物的生存现状；我们要学会如何保护野生动物，以及要从已经灭绝的动物中吸取哪些经验才识从而促进我们保护野生动物的意识。评测练习Learningaims:1.Getthemainideaofthetext2.DevelopthesubjectaccomplishmentofprotectingwildanimalsStep1Fast-readingChoosethemainideaofeachpart.Part1(Para1)A.DependenceononepreyspeciesmakesbearseasilyhurtPart2(Para2-5)B.Pagano’sstudyanditsfindingsPart3(Para6)C.ClimatechangecauseshungrierpolarbearsStep2Careful-reading1.Choosethebestanswertocompletethesentences.(1)Theiceisforminglaterintheautumn,whichcausesbearstoswimlongdistancesto_______.(2)ThebearswerefittedwithGPScollarsthathadcamerasto______.(3)Thevideosdisplayedthatfourofthefemalesweren’tableto_______.(4)Onebearevenjumpedintotheseainafailedattemptto_______.A.recordpoint-of-viewvideosofeachB.catchasealswimmingbyC.gettoanyremainingiceD.catchasingleseal答案：CADB2.ReadParagraph1andanswerthequestion.Howbearsreactwhentheiceismeltingsoonerandforminglater?(1)Bearswalkorswimlongdistancestogettoanyremainingice(2)Ortheystayonlandlonger,spendingthesummerandtheautumnfasting,existingontheirfat.3.ReadParagraph2andputtheeventinorder.A.ThebearswerefittedwithGPScollars.B.Bloodandurinesamplesweretakenagainandthevideoandotherdataweredownloaded.C.Researcherscaughtninefemalebears.D.Theywereallre-caught.答案：CADB4.ThefiguresinParagraph3showthat_______.A.thesepolarbearswerelazyB.previousstudieswerecompletelywrongC.thefemalesweren’tgoodatcatchingsealsD.itwashardforthebearstoeatwell5.InParagraph4,Paganoguessed,“Shemighthavebeenhopeless”,whichexpressionsshowthatthebearsstruggledtogetfoodinParagraph2-4?InParagraph2:Onebearhadmoved155milesawaybythattime.InParagraph3:Thedatashowedthebearswereactiveabout35percentofthetime.InParagraph4:Thisbearevenjumpedintotheseainafailedattempttocatchasealswimmingby.6.WhatcanweinferfromParagraph3andParagraph4thatpolarbearshavehighenergymetabolism？InParagraph3:Theyburnedthrough12,325caloriesaday,muchofitfromtheirbodyreserves.That’sabout60percentmorethanpreviousstudieshadestimated.Measurementsshowedthoseanimalslost10percentormoreoftheirbodyweight.InParagraph4:Onebearlostcloseto44pounds,includingherleanmuscle,in10days.7.Whyarepolarbearseasilyhurt?Becausetheyareintheiralmosttotalrelianceononepreyspecies(seals)./Becausetheyarenearlydependentononepreyspecies(seals).Step3SummaryClimatechangeisheating1.______theArcticfaster,andseaiceisreducing14percentperdecade.2.________(gain)food,polarbearswalkorswimlongdistancestogettoany3.________(remain)ice;ortheystayonlandlonger,andexistontheir4.______(store)fat.Pagano’sstudy5._______(show)thatbearswereactiveabout35percentofthetime,yettheyburnedmorecalories6.______previouslyestimated.Onebearevenlostcloseto44pounds,7.________(include)herleanmuscle,in10days.Stevensaiditwasareally8.________(influence)study.Polarbearsare9._______(easy)hurtduetototaldependenceon10._______(seal).答案：1.up2.Togain3.remaining4.stored5.showed6.than7.including8.influential9.easil