高中英语-Unit 4 Astronomy教学设计学情分析教材分析课后反思

Unit4Astronomy:thescienceofthestars教学设计第一课时：阅读课（一）课型阅读课教学内容Unit4Astronomy:thescienceofthestars教学目标Knowledgeobjects(语言目标：语音，词汇，语法，功能，话题)(1)TheSscanmastertheusageoftheimportantwordsandexpressions.(2)TheSscanusethenounclausesasthesubjectandastheobjectinthepropersituation.(3)TheSscanunderstandthecontentofthelesson,talkaboutastronomyandgettheirownideaaboutprotectingtheearth.2.Abilityobjects(技能目标：听，说，读，写)(1)TodeveloptheSs’abilitiesoflistening,speaking,readingandwriting(2)ToguideSstosetupeffectivestudyingstrategies.(3)Toimprovethestudent’sreadingability,especiallytheirskimmingandscanningability.(4)TotraintheSs’abilitiesofstudyingbythemselvesandcooperating.3.Emotionalobjects(情感目标：兴趣，自信，合作，爱国，国际视野)(1)Bycompletingthetask,theSsincreasetheirinterestinastronomyandscienceandsetupself-confidenceinlearningEnglishandprotecttheearthinproperways.(2)TeachtheSstocooperatewithothersandcultivatethepatrioticspiritandinternationalvisions,putthemoraleducationinthelanguagestudy.教学重、难点Basedontherequirementofthesyllabus.Theimportantpointsare_newwordsandexpressionsinthetext,suchastheory,billion,violent,fundamental,givebirthtoetc.Thedifficultpointsaretheusagesofnounclausesasthesubjectandastheobject,howtodistinguishthesetwokindsofnounclauses.教学过程步骤教学活动设计意图Step1：PreviewdetectionAsksomestudentstoreviewsomekeywordsandexpressions1.喜欢(v.)______不喜欢_______像(prep)________不像_________2.迷（n）________迷惑的（adj.）_________感到迷惑的________3.伤害（n/v）________有害的（adj.）_________4.存在___________5.以……作为开始_____________6.轮到某人_____________7.太阳系____________8.产生、分娩_____________9.及时____________10.阻止_______________通过预习检测环节，引领者学生温故所学新单词，为本节课的语法复习任务扫清障碍利导入新课。Step2：Lead-in本单元的话题是Astronomy:thescienceofthestars，所以利用多媒体播放视频《howlifebegan》。用视频导入，激发学生的学习兴趣和探究的动机。在轻松的节奏中导引学生轻松自然地进入课堂Step3：SkimmingTask1:整体理解文，归纳课文大意。AsktheSstoworkingroups.ReadthetextquicklyandfindoutMainideaofthepassageandthemainideaforeachparagraph.Thencheckyouranswers.Para.1ATheformation(形成)oftheearth.Para.2BTheimportanceofwaterforlife.Para.3Cawidelyacceptedtheoryabouttheformationoftheuniverse.Para.4DThearrivalofhumansandtheirimpact(影响)ontheearth.Para.5EThedevelopmentofplantsandanimalsontheearth.梳理清楚课文线索。为各个环节的理解和开展做铺垫。整体粗读，领略内容大意。通过此连线题进一步考察学生在规定时间内把握语篇大意和各段中心大意的能力。Step4：ListeningTask2：Listentothetape,thenworkingroups，choosethebestanswers，thenchecktheanswersinthegroups.Task2:Listentothetape,thentotelltrueorfalse.1.Humanbeingshaveknowntheoriginoftheearthclearlysofar.()2.Theappearanceofwatermadeitpossibleforplantsandanimalstoliveontheearth()3.Plantsfirstappearedonlandandtheninthewater.()4.Dinosaursexistedontheearthforover140thousandyears.()5.Itishumanbeingsthatarenotlookingaftertheearthverywellandhavecausedglobalwarming.()通过让学生听听力材料，进行听前预测可以让学生对于所要听的材料有所了解，为听力练习提供背景，激活已有图式经验。这样可以降低听力练习的难度。Step5：DetailedReadingTask3：细读课文，查找信息。Afterreadingthepassage,theSshaveknownsomethingaboutthepassage.LetSsdosomedetailreading.WeknowWedividethepassageintotwostages.Now，readthepassagecarefully，thenworkingroupstofillintheblanks.通过仔细阅读课文还要求学生更深层地理解课文，在学生对文章的内容已经有了比较全面的了解后，要求学生带着问题快速浏览文章，从阅读材料中,迅速查找这些特定的信息，用图表的方式让学生重新构建文章的主要内容。形式简单、明了，便于知识的掌握和系统化。Step6：discussionTask4:深层理解课文学生小组讨论下面问题，深层理解课文。Withthedevelopmentofsociety，humanbeingsarenotlookingaftertheearth.Theycuttrees,andputmorecarbondioxideintotheatmosphere,itpreventsheatfromescapingfromtheearthintothespace.Theearthbecomesmoreandmorehotter.Itcausedtheglobewarming.Asastudent,whatlittlethingscanwedofortheearth?lettheSsexplaintheirideasaccordingtothepictures开放性话题，让学生发挥想象，自由畅谈，提出尽可能多的解决方案，将抽象理论和概念与实际生活想联系假发学生关注科学热爱科学的热忱,从而升华本节课的情感教育，即热爱地球、保护地球。此活动可以锻炼学生解决实际问题的能力，口头表达能力也能在讨论中得到提高。Step8：HomeworkLetthestudentstowriteanarticle：“Whatshallwedotohelpourplanet”.让学生就此话题写作文可以让他们及时复习所学知识，提高英语综合运用能力，并思考保护地球家园这个重要问题，增强社会责任感。AnalysisofstudentsThestudentsinSeniorHighSchool,gradeonehavealreadylearnedEnglishforyears,theycanspeakandcommunicatewiththeirfriendsinEnglish.Theyaremoderate,matureandsensitive.TheyarehighlymotivatedinlearningEnglishandhavetheabilitytolearnbythemselves.Furthermore,thetopicofthisunitisaboutastronomy,whichisfullofmystery,thestudentswillhavegreaterinterestinlearningit.However,thedifferencesinenglishlevelamongstudentsisthebiggestchallenge.Thereforetheteachershouldprovideenoughbackgroundinformationtomakethembetterunderstandthetext.Therefore,Iwilladoptappropriateteachingmethodstoarousetheirinterestinlearning.效果分析新《课标》指出，教师应该避免单纯传授语言知识的教学方法，尽量采用“任务型”语言教学（task—basedlanguageteaching）途径。“任务型”语言教学是指教师根据课程的总体目标并结合教学内容，创造性地设计贴近学生思想、学习和生活实际的教学活动，吸引和组织他们积极参与。一堂成功的课，应该让学生自始至终掌握主动权，教师只是充当“组织者”“促进者”“合作者”“咨询者”“参与者”“引导者”“顾问”等多种角色，最大限度地给学生提供参与的机会。本节课活动设计步骤较多，针对性很强，《新课标》中所倡导：教师应依据课程的总体目标并结合教学内容，创造性地设计贴近学生实际的教学活动，吸引和组织他们积极参与。这样学生可以通过思考、交流和合作等方式，更好的学习和使用英语，完成学习任务。学生在任务执行中运用策略和方法完成任务的能力，让学生通过表达、沟通、交涉、解释、询问等各种语言形式来学习和掌握语言。AnalysisoftheteachingmaterialThecontentofmylessonisNewSeniorEnglishforChinaBook3Unit4.ThisunitisaboutAstronomy:thescienceofthestars.Bystudyingofthisunit,we’llenablestudentstoknowsthaboutastronomyandscienceofthestarsanddeveloptheinterestinscienceandlearningEnglish.Atthesametime,letthestudentslearnhowtousethenounclausesasthesubjectanddistinguishthenounclausesasthesubjectandastheobject.Fromthislesson,itstartswithwarmingup,pre-reading,readingandcomprehendingpart.(Asweallknow,readingbelongstotheinputduringtheprocessofthelanguagelearning.Theinputhasgreateffectonoutput,suchasspeakingandwriting.)Therefore,thislessonisintheimportantpositionofthisunit.IftheSscanmasteritwell,itwillbehelpfulforthemtolearntherestofthisunit.Book3Unit4Astronomy:thescienceofthestars阅读导学案【使用说明及学法指导】：快读课文一遍，把握文章的主旨大意，完成task1.听课文录音，把握文章内容，完成task2和自学效果检测。再精读课文一遍，把握文章的细节，完成task3课内探究.了解地球生命的起源等天文知识，培养创造性思维，开拓想象空间。【学习目标】：分析文章中的长难句，培养快速阅读和整体理解的能力。通过自主学习，合作探究，学会提炼主旨，不着细节和猜测词义的方法。了解地球的起源和一些天文知识，激情参与课堂，享受学习的快乐。【预习检测】Wordsandexpressionspreview喜欢(v.)________不喜欢_________像(prep.）________不像_________迷（n）________迷惑的（adj.）_________感到迷惑的________伤害（n/v）__________有害的（adj.）___________存在___________以……作为开始_____________轮到某人____________太阳系____________产生、分娩____________及时____________阻止_____________【自学引导】Task1:Skimthepassageandmatchthemainideawitheachparagraph.Para.1ATheformation(形成)oftheearth.Para.2BTheimportanceofwaterforlife.Para.3CAwidelyacceptedtheoryabouttheformationoftheuniverse.Para.4DThearrivalofhumansandtheirimpact(影响)ontheearth.Para.5EThedevelopmentofplantsandanimalsontheearth.Task2:Listentothetape,thentotelltrueorfalse.1.Humanbeingshaveknowntheoriginoftheearthclearlysofar.()2.Theappearanceofwatermadeitpossibleforplantsandanimalstoliveontheearth()3.Plantsfirstappearedonlandandtheninthewater.()4.Dinosaursexistedontheearthforover140thousandyears.()5.Itishumanbeingsthatarenotlookingaftertheearthverywellandhavecausedglobalwarming.()我的疑问我的收获【课内探究】Task3:（1）.IntensiveReading.Thistextcanbedividedintotwostages（阶段）Stage1:Thedevelopmentoftheearth(para___—___)Stage2:Thedevelopmentoflife(para___—___)（2）.DetailedReading.（1）slow-readingtofinishthefollowingchartaboutthedevelopmentoftheEarthaccordingto1-3paragraphs.（2）slow-readingtofinishthefollowingchartaboutthedevelopmentoflifeontheEarthaccordingto4-5paragraphs.【精讲点拨】【重点词汇和短语】1、Betodo（1）表示将按计划或安排做某事eg.Wearetomeetattheparktomorrow.我们打算明天公园见面（2）表示禁止、命令eg.Youarenotgooutwithoutpermission.未经许可不许你外出（3）表示注定要.....eg.Hewastosucceedasheworkedsohard.因为他努力学习,注定他要成功（4）表示“应该”,相当于shouldeg.Whatistobedone？该怎么办呢？【当堂检测】1.Asstudents,we____.A.won’tsmokeB.arenottosmokeC.aren’tsmokingD.don’tsmoke2.Thefinalexamination___earlyJuly.A.istobeheldB.istobetakenplaceC.isgoingtoholdD.willbetotakeplace2、intime(1)迟早、终于eg.Youwillsucceedintimeaslongasyoudon’tgiveup.只要不放弃，你迟早会成功的.(2)及时eg.Youmustgooffnowifyouwanttoattendthemeetingintime.如果你想及时参加会议,必须马上动身.【归纳拓展】ontime按时,准时atatime每次,一次allthetime一直,始终aheadoftime提前,提早atonetime曾经,一度innotime立刻,马上attimes有时forthefirst/lasttime第一/最后一次【当堂检测】1.Thefirefighterswerejust______forrescue,soonlyafewpeoplegothurt.A.atatimeB.intimeC.attimesD.atonetime【高考链接】[2012.江苏高考]2.---ThankGodyouaresafe!---Isteppedback,just______toavoidtheracingcar.A.intimeB.incaseC.inneedD.inall【辨析】forthefirst/lasttime第一/最后一次介词短语时间状语thefirst/lasttime第一/最后一次时间名词时间状语从句eg.I'vebeenhereforthefirsttime.我是第一次来这里IfellinlovewithherthefirsttimeIsawher.一见钟情（注意：时间名词前面没有介词）【拓展延伸】时间名词引导时间状语从句thelasttime最后一次thefirsttime第一次every/eachtime每次themoment/minute/secondthat(=assoonas)一……就……【当堂检测】（1）.---Iwasdisappointedin___timewhenIdidn’tpasstheexaminations.---Don’tbesodiscouraged.You’llbesuccessfulin____time.A./,/B.a,aC./,aD.a,/（2）.___Ilistentoyouradvice,Igetintotrouble.A.EverytimeB.EverytimethatC.EachtimewhenD.Whenthat3、harmfuladj有害的(1)beharmfulto对……有害=bebadforeg.Itisharmfultodrinktoomuchalcohol.过量饮酒对身体有害.(2)harm n/v伤害，损害doharmtosb=dosbharm对某人有害eg.Smokingdoesharmtoyourhealth.吸烟对你的身体有害.【拓展延伸】dogoodtosb=dosbgood对某人有好处【当堂检测】Everyoneknowssmokingis____totheirhealth,butmanypeoplecan’tbearthemselvesawayfromit.A.harmfulB.goodC.helpfulD.bad【当堂检测】见PPT课件【合作探究】【Discussion】Theearthisgettingwarmerandwarmer，theearthmaybecometoohottoliveon.Asastudent,whatlittlethingscanwedofortheearth?______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________【suggestedexpressions:】Withthedevelopmentofsociety，climateisbecomingmoreandmorewarmer.globalwarminghasbecomeahottopicamongpeople.Howtoprotecttheenvironmenthasbecomeoneofthebiggestproblemsintheword.SoIt'sourdutytotakemeasurestosaveourplanet.First,weshouldusemorecleanenergyandlesscoalandoil.forexample，weshouldmakefulluseofsolarenergyinourdailylife.Second,weshouldplantmoretrees,becauseplantscanturnCO2intooxygen.Third,weshouldgotoworkonfootorbybusinsteadofdrivingacarifpossible.Moreimportantly,weshouldformthehabitofsavingenergyinourdailylife.Ibelieveifeveryonemakesalittleeffort,wecanmakeabigdifference.【课文复述】Afterthe“bigbang”,theearthwasstilljustacloudof_______,it__________loudlywithfireandrock,whichwereintimetoproducethe_________,watervapourandothergases.Then________begantoappearedontheearth.____________inwaterareconsideredtobetheearliestlivesontheearth.TheO2

theysuppliedencouragedthelivesof______________.Slowlygreenplantsgrewon

land,whichwerefollowedby__________likeinsects&________.Whentheplantsgrewinto______,______appeared.Then_______developedbutdisappearedlater,whichmadetheriseofatotallydifferentanimal,______,possible,andfinally_____spreadallovertheworld.【作业】Writeanarticle“Whatshallwedotoprotectourplanet”【预习指导】1.Previewlanguagepoints.2.Previewthegrammar---NounClause【课外拓展】EdmundHalleywasanEnglishscientistwholivedover200yearsago.Hestudiedtheobservationsofcomets(彗星)whichotherscientistshadmade.Theorbitofoneparticularcometwasaverydifficultmathematicalproblem.Hecouldnotfigureitout.Neithercouldotherscientistswhodealtwithsuchproblems.However,HalleyhadafriendnamedIsaacNewton,whowasabrilliantmathematician.Newtonthoughthehadalreadyworkedoutthatproblem,buthecouldnotfindthepapersonwhichhehaddoneit.HetoldHalleythattheorbitofacomethadtheshapeofanellipse(椭圆形).NowHalleysettowork.Hefiguredout(解决，计算出)theorbitsofsomeofthecometsthathadbeenobservedbyscientists.Hemadeasurprisingdiscovery.Thecometsthathadappearedintheyears1531,1607,and1682allhadthesameorbit.Yettheirappearancehadbeen75to76yearsapart.ThisseemedverystrangetoHalley.Threedifferentcometsfollowedthesameorbit.ThemoreHalleythoughtaboutit,theorehisthoughtthattherehadbeenthreedifferentcometsaspeoplethought.Hedecidedthattheyhadsimplyseenthesamecom