Unit 3 Conservation Lesson 1 The Sixth Extinction 说课课件-2024-2025学年高中英语北师大版(2019)选择性必修第一册

BYYUSHENLesson1TheSixthExtinction北师大选择性必修一Unit3Conversation动物介绍生活习惯饮食习惯保护措施高二Reading第一课时（共2课时）BYYUSHENContent02Analysisofteachingmaterial&students03Learningobjectives0405TeachingprocedureTeachingreflectionDesignprinciples01BYYUSHEN动物介绍生活习惯饮食习惯保护措施01DesignprinciplesPart01教学评一体化生态文明建设的思想单元整体设计英语学习活动观01DesignprinciplesTheideaofecologicalcivilizationconstructionActivity-basedapproachIntegratedteachingevaluationWholeunitdesignEnglishCurriculumStandardBYYUSHEN动物介绍生活习惯饮食习惯保护措施02Analysisofteachingmaterial&studentsPart02北师大选必一Unit3Conversation单元主题语境语篇主题语境Lesson1TheSixthExtinction人与自然自然生态环境保护人与环境、人与动植物分析历史上前五次物种灭绝及其原因，然后解释了第六次物种灭绝可能导致负面后果的原因，并呼吁人们采取措施。Unit3ConversationEnvironmentSpeciesCulturewhatwhyhowNatureHumanRC2NatureIsTurningonUsL2WaronPlasticPacketsL3TheRoadtoDestructionL1TheSixthExtinctionL2RhinoProtectionWWFactoryFarmingVWCrazyBridgesforAnimalsRC1WorldHeritageSitesinChinaTopicTalk完成濒危物种的报告Conclusion：Naturalprotectionandhumandevelopmentarebondedclosely——Conversation树立防范意识解决不可回收的包装问题制作海报——合理使用交通改变生活习惯，认识非法捕猎，与动物共存议论文：反对工厂化养殖保护非遗ThreeaspectsofconversationExtinctions,whereentirespeciesarewipedout,arenotunusualinourEarth’shistory.Infact,over90percentofallspeciesthateverlivedarenowextinct.Inthelast500millionyears,therehavebeenfivetimeswhenlifeonEarthhasalmostended.Theseincludethethirdmassextinction,knownasthe“GreatDying”,whichkilled90%to96%ofallspecies.Andthefifthevent,whichoccurred66millionyearsago,causedthedeathofthedinosaurs.Thereasonsforextinctionsarevaried.Accordingtoscientists,theyincludevolcaniceruptions,asteroidshittingtheEarthfromspace,changesinsealevels,thedecreaseoftheoxygencontentoftheseaandglobalwarming.ManyscientistssaywearenowenteringtheEarth’ssixthmassextinction.Thistime,humanactivitywillbetoblame.Althoughitisnotunusualforspeciestodieoutnaturally,therateatwhichthisisnowhappeningiscauseforconcern.A2015studybyscientistswhowerebasedatBrownUniversityandDukeUniversityintheUS,lookedathowquicklyspeciesdieoutduetonaturalcauses,thatis,the

“backgroundextinctionrate”.Theyfoundthathumanactivityiscausingspeciestodieout1,000timesfasterthannormal.Thereisalonglistofreasonswhysomanyspeciesaredyingout:airandwaterpollution,forestsbeingdestroyed,factoryfarmingandoverfishing.ItisclearthathumanactivityhasnegativelyaffectedallotherspeciesonEarth,includinganimalsandplants.Ifasixthmassextinctionoccurs,scientistswhohavestudiedtheissuebelievethatuptothreequartersofallspeciesonEarthcoulddieout.Ofcourse,aswehumansdependonsomanyspeciesforoursurvival,wewouldalsobeatriskofdyingout.Ourworldandourlivesdependonthebalanceinnaturebetweenanimalsandplants.Withoutforests,wewouldhavenoairtobreathe,andwithoutcleanwaterwewouldbeunabletosurvive.Canasixthextinctionbeavoided?Expertssaythatitisnotyettoolate,ifwetakeactionnow.Thiswouldmeanwehavetosignificantlychangethewaywelive.Forexample,weneedtotakestepstosaveendangeredspecies,includingsettingupspecialareaswhereplantsandanimalscanbeprotected.Weneedtochangehowweworkandtravelbyusingcleaner,morenaturalsourcesofenergy,suchaswindandsolarenergy.Wealsoneedtoimproveourfarmingmethodstoreducewater,airandlandpollution.Inshort,ifwewanttosurvive,weneedtostopdestroyingtheplanetthatweliveonandstarttoprotectit.TextAnalysisMeaningThenumberandtwonotableofextinctionsReasonsConsequenceSolutionsReasonsThepreviousfiveextinctionsWhatExpositorywritingProblem——SolutionHow FactsandOpinion

Objective&ConvincingWhy Appealtotakeaction

TheupcomingsixthextinctionTheextinctionsarehappeningHumanactivityistobeblameTheimportanceoftakingactionStudentsAnalysis单元话题学生比较熟悉环境保护这一话题并在必修二U5HumanandNature本单元Conservation：TopicTalk中学习了部分相关词汇；可能通过影视对灭绝有初步了解。阅读技巧能够在前期的练习中训练段落大意的匹配和梳理文章框架脉络的能力主题意义学生通过必修二U5HumanandNature已知人类在大自然面前的渺小。对前五次大灭绝了解不多，对第六次大灭绝没有危机意识，也不清楚的措施的具体做法。学生对factoryfarming的概念比较模糊。对说明文的框架结构和语言风格了解较少学生不清楚自己的行为对大自然的影响和自己能做的环保措施前五次灭绝的部分事实性信息；第六次灭绝的成因和可能会造成的影响以及可以采取的行动。认识名词概念认识说明文的框架结构和语言风格。清楚人和自然的关系是密切相关的，了解到具体的保护环境或物种的措施。TeachingactivitiesX√03LearningobjectivesPart03BYYUSHEN理解人与自然密切依存的关系，从而促进学生践行人与自然和谐共处的原则以及采取行动保护环境。能分析说明文的文体特征，写作目的和语言风格。0304学习使用目标语言去描述生活中的环境问题和提出解决措施。能从文章中获取灭绝的原因，影响和保护措施的信息，能理解物种保护类语篇的基本要义。0102LearningObjectivesKeypointsDifficultpointsBytheendofthe1stlesson，studentscouldTeachingactivity2&4Teachingactivity6&7Teachingactivity3Teachingactivity1-6BYYUSHEN动物介绍生活习惯饮食习惯保护措施04TeachingprocedurePart0404TeachingprocedureActivityMeaningofextinctionReasonsConsequenceSolutionsReviewandactivateImpressionLeadinMeaningImportanceReadforthegistDefinitionNatureSpeciesUrgencyReadfordetailsHumanActivityHumanDiversityThinkandshareDifferenceBothEffectivenessProduceOperabilityHomeworkPracticability1234567Level1Level2Level1Level2Level1Level2ShallowDeepLevel1Level2BYYUSHEN01Reviewandactivate

感知与注意发布问卷星，收集学生关于灭绝的单词网以新知带旧知，激活兴趣课前播放与语篇插图1相似的公益广告视频为后面学生产出公益广告的作业做铺垫BYYUSHEN02leadin

感知与注意/描述和阐释——行动重要性观察问卷词云图——学生对“Extinction”的初步认知阅读CaseStudy指定部分文本并预测BlackRobin（在没有人类干预下）的结局——加深对语篇主题Extinction的理解BYYUSHEN03Readforthegist

获取和梳理/描述和阐释——行动迫切性

确定文体，利用Skillbuilder快速阅读确定文章框架并找出事实和观点的表述——为后文认识说明文特征和梳理细节信息做铺垫引发学生思考：过去的五次灭绝已成事实，而第六次灭绝仍可以采取措施去避免。factsandopinionsObjectiveandconvincingBYYUSHEN04Readforthedetails

内化与运用/概括与整合/批判与评价

思维导图创作——获取并梳理细节性信息，加深框架结构的认识。展示环节——运用和内化文章语言（评分）。BYYUSHEN05Thinkandshare

内化与运用/概括与整合——行动有效性设问1：Whydoesthewriterthinkthesixthmassextinctionwillcomeandhumanshouldbetoblame?——回顾语篇语言/理解插图2解释factoryfarming的概念，为WorkshopWriting做准备can’tbeseenregularlyanddirectlyoutofcontrolcanbeseeneverywhereatanytimedependonsomuchNoair,water,forest,speciesatriskofdyingoutFasterbutundercontrolTakeactionnow！Thecausesofthepreviousfiveextinctions.Thecausesoftheupcomingsixthextinctions.BYYUSHEN05Thinkandshare

内化与运用/概括与整合——行动具体性设问2：HowandwhydidpeoplehelpBlackRobinssurvive?HowWhyAssumingthatyourschoolisrecruitingsomeideatoprotectenvironment，canyouchangetheactionmentionedinthelastparagraphintospecificmeasuresthatwecancarryoutinourdailylife？运用和内化语篇关于措施的表达把书本的行动和日常行动联系起来促使学生践行06ProduceBYYUSHENHomework1.

学生完成课堂评价表2.（必做10分）演讲稿：Worldanimalday3.

（选做2