英语Unit3Underthesea教学案

-1-Unit3Underthesea---教学案学科英语教材名称高中英语选修七课题Unit3Underthesea年级高二学段第一学段备课组长主备人王惠琴一、概述·“Underthesea”是高中人教版新课标英语新教材二年级选修七第三单元课文。·本单元课文所需课时为5课时，共需200分钟，本节课是第二课时,40分钟；·“Underthesea”是一篇科普文章，中心话题为海底世界。听说读写活动主要围绕海底植物、海底奇妙景观以及有关大海神话故事展开的。·这节课主要培养学生的阅读、归纳能力和联想、创新思维精神。二、教材分析本单元的中心话题为海底世界。听说读写活动主要围绕海底植物、海底奇妙景观以及有关大海神话故事展开的。1.WarmingUp部分以海底生物（包括动物和植物）为话题，主要讨论三个方面的问题；学生所见过的海底生物，在何处见过这些海底生物，学生最喜欢的海底生物。2.Pre-reading部分设计了一个读图题，图片内容为：Killerwhalesareattackingabaleenwhalewithwhalerswaitingbyintheirboat，harpoonattheready.由此引入阅读文章的相关背景知识：作者、职业、文体等。3.Reading是一篇以第一人称口吻讲述了一个名叫OldTom的虎鲸的故事。学生阅读此文可以了解人类如何利用鲸捕杀鲸的残酷事实，同时可以从文中学到许多描述事物和情景的生动手法。4.Comprehending共有3个练习就课文内容进行讨论，重点检测学生对课文深层次的理解，也以进行适当的拓展，让学生讨论是否应该关闭捕鲸站并保护鲸。5.LearningaboutLanguage部分是词汇训练，和语法训练，通过用所给词的适当形式填空，复习V-ing形式的被动式的用法。6.UsingLanguage分为四部分，综合训练听说读写的能力。三、教学目标1·.Abilitygoals能力目标Tohelpstudentsdeveloptheirreadingabilitybyskimmingformainideasandscanningfordetails.Tohelpstudentssolvethereadingproblemswiththeteacher’sguidance2.Learningabilitygoals学能目标TohelpstudentslearnaboutanimalsandplantsundertheseaTogetstudentstomastersomekeywords,suchaswitness,abandon,reflect,drag,beawareofandsoon四、教学重点和难点Teachingimportantpoints：教学重点1.Helptocomprehendthetextandgraspthemainideaofthetext.2.Guidestudentstolearnabouttheusageofsomekeyexpressions,revisethekeywordsandthelanguageponits,grammarlearnedinthelastpassage.DifficultPoints:教学难点1.Tohelpstudentsgetthemainideaandsomeinformationbyskimmingandscanningthepassage.2.Tohelpstudentstellapartfromwhen,whileandas.五、学情分析1.MostofthestudentsarepoorinEnglish.2.Studentsareactiveinthinkingandcomunicating,especiallyintersetedinthegiventopic—Underthesea六、教学策略选择与设计1.设计的基本理念“Underthesea”一课倡导英语新课标理念下的合作学习。根据英语《课程标准》的指导思想,英语课程改革的重点是要改变传统教学强调课程从学生的学习兴趣和认知水平出发，倡导学生体验参与、合作与交流的学习方式和“任务型”的教学模式，让学生去发现问题、解决问题，提高合作意识，培养合作精神，从而实现学生的主体地位，发展学生的综合语言运用能力。2．教学与活动策略本课综合运用讲授式、启发式、自主学习、协作学习等各种策略，提供大量的学习资源，指导学生进行自主探索学习。设计的教学活动遵循快读—详读—巩固—练习—运用。这样的设计是由梯度的，完成从理解到表达的过渡。七、教学资源与工具设计·本节课是在高二文科班多媒体教室实施的。·专门为本课设计、制作的资源课件·收录机和本课的课文录音磁带八、教学过程(Teachingprocedure)Step1.WarminguptalkingaboutoceanplantsandoceananimalsHello,class.Thisweekweshallgototheseatolearnaboutoceanplantsandanimals.AboutOceanPlantsTherearetwogeneraltypesofplantsfoundintheocean,thosehavingrootsthatareattachedtotheoceanbottomandthosenothavingrootswhichsimplydriftaboutwiththewater.AboutOceanAnimalsOceananimalsaredividedintothreegroups:zooplankton,nekton,andbenthos.Zooplanktonaredriftingsmallanimals,however,theycangrowtofairlylargesize.Forexample,thejellyfish.Step2.Pre-readingWhatisananecdote?Let'sstartwithadefinition:Anecdote:ausuallyshortnarrativeofaninteresting,amusing,orbiographicalincident.GivesomeanecodotesyouhavereadStep3.Reading1.ReadingaloudtotherecordingNowturntopage20andreadaloudtotherecordingofthetextOldTomYouareaskedtocopyalltheusefulexpressionsintoyournotebookafterclassashomework.Youmaymakeyourownsentenceswitheachoftheseexpressions.ExpressionsfromOldTomTheKillerWhaleatthetime在那时,witness…withmyowneyes亲眼所见……,sortout整理；分类,rundownto…跑-2-向……；追捕,throw…outofthewater使……失去（离开）水,aheadof…在……之前,raceafter…追赶……,headoutinto…朝……去,fleeouttosea逃逸出海,pointto…指向……,theapackofexciteddogs一群兴奋的狗,withinamomentortwo在一时片刻,bedraggedby…downinto…被……拽入……,thedepthsofthesea海底深处,haveagoodfeedon…美美地享用……,handletheboat掌舵,beabandonedby…被……遗弃,4.UnderstandingdifficultsentencesIngroupsoffour,analyzethestructureofanyofthedifficultsentences.Ifyouhaveanyproblemswhicharetoodifficultforyoutosolvedonothesitatetoputthemtome.ReadingandtransferringInpairs,readthetext,findinformationtocompletethefollowingform.WhenWhereWhoWhatOntheafternoon,inJune1902AtthewhalingstationI,a16-year-oldboyWitnessingkillershelpingthewhalerscatchthehugewhalesComprehensionquestions1.Howdidthekillershelpthewhalerscatchthewhale?Thewrongoneis___.A.OldTomreportedthenewstothewhalers.B.Somestoppeditfleeingouttosea.C.Someusedtheharpoontohitthewhale.D.Somekillersthrewthemselvesontopofthewhaletostopitbreathing.2.Whichorderiscorrectaccordingtothepassage?A.Clancyheardahugenoisecomingfromthebay.B.ClancygrabbedhisbootsandracedafterGeorgetotheboat.C.Thekillersstartedracingbetweenourboatsandthewhale.D.Themaninthebowoftheboataimedtheharpoonatthewhale.A.ABCDB.ACBDC.BDACD.DBCA3.WhichofthefollowingstatementsisTRUE?A.Killerwhalesarewhalers’friends.B.Killerwhalesoftenhuntcooperativelyingroupsforfood.C.Killerwhaleslikeeatingthelipsandtonguesofwhales.D.There’snodangerintheseabecausekillerwhalescanprotecthumanbeings.PartⅠVocabularyandUsefulExpressions●重点单词1．annualadj.每年的；按年度计算的n.年刊；年鉴→annuallyadv.每年地；年度地→anniversaryn．周年纪念2．witnessvt.当场见到；目击n．目击者；证人；证据3．accommodationn．住所；住宿4．oppositeprep.在……对面adj.相对的；相反的5．pausevi.&n．暂停；中止6．telescopen．望远镜7．fleevi.逃避；逃跑vt.逃离→fled/fled(过去式/过去分词)8．dragvt.拖；拉；扯9．depthn．深(度)；深处10．urgevt.催促；极力主张；驱策11．abandonvt.放弃；遗弃；抛弃→abandonedadj.放纵的；堕落的12．targetn．目标；靶；受批评的对象13．reflectvi.思考vt.映射；反射；思考→reflectionn．映像；思考；反映14．awareadj.意识到的；知道的→awarenessn．意识15．neatadj.(口)好的；整齐的；匀称的16．scarevt.恐吓vi.受惊吓→scaredadj.恐惧的；害怕的→scaryadj.引起恐慌的17．Antarcticadj.南极的18．awesomeadj.使人敬畏的；令人畏惧的→awen.&vt.敬畏；使畏惧；满心敬畏→awfuladj.可怕的，