Module 3 Journey to space Unit 2 公开课教学设计（外研版八年级英语下册）

Module3JourneytospaceUnit2Wehavenotfoundlifeonanyotherplanetsyet.教学设计一、教学目标1.能掌握本单元的单词和短语：group,light,impossible,take,out,communicate2.重点句型：However,wehavenotfoundlifeonanyotherplanetsyet.Scientistshavealsodiscoveredmanyothergalaxiesintheuniverse.3.能够读懂以太空为主题的简单文章并能识别细节，做出正误判断。4.通过了解中国在太空探索领域取得的伟大成就，形成民族意识和民族自豪感。5.能够用现在完成时谈论最近发生的事情。6.能根据图片完成与主题相关的写作任务。二、教学重点及难点重点：识别文章的主题，能读懂以太空为主题的简单文章并识别细节信息。难点：1.能区分现在完成时与一般过去时的区别并灵活运用。2.already，just，yet在现在完成时中的应用。三、教学准备1.多媒体设备和课件。2.教学光盘。四、教学过程StepⅠWarming-upWatchanddiscussSswatchthevideoSpaceTravelandtalkabouttheuniverse.Whatdoyouknowabouttheuniverse?Whatplanethavehumansalreadybeento?设计意图：通过观看有关太空探索的视频，让学生初步了解太空知识。再通过问题的讨论与思考，进一步引出本单元话题，激发学生的学习兴趣。StepⅡPre-readingActivity1Ssworkinpairs,lookatthepictureinActivity1andtalkaboutwhattheyknowaboutChinesespaceships.设计意图：增强学生的话题意识，弥补信息不足，扩充词汇，为阅读理解做准备。Newwords1.Sslearnthenewwordsinunit2andreadthemtogether.2.Ssreadthewordsinpairsandasktheteacherforhelpiftheyhavedifficulties.3.TandSscheckthepronunciationtogether.设计意图：学习新单词，为学习对话做铺垫。4.Ssreadsomenewwords,thenmatchthemwithpictures.5.Tchecktheanswersasawholeclass.6.Ssputthewordsandphrasesinrightorder.设计意图：通过设置连线和排序题目，帮助学生加深对词汇的理解，为后面阅读课文做准备。StepⅢWhile-readingListenandread1.TplaystherecordingandSslistentoitcarefully.2.TasksSstoreadthroughthepassage,andthenreadthetexttogether.Fastreading1.TasksSstoreadthepassagequicklyandtrytomatchtheheadingswiththeparagraphs.Paragraph1Thescientists’progress(进程)Paragraph2&3Thescientists’questionsParagraph4ThesolarsystemandtheuniverseParagraph5Thelifeonearthandotherplanets2.TasksSstoreadPara1and5quicklyandchoosethetitle.Thebesttitleforthepassage__________.(1)Anyoneoutthere?(2)Lifeontheearth(3)Thesunandotherothers(4)Thestarsatnight设计意图：通过快速阅读，帮助学生掌握每个段落的大意，理解文章的框架结构。Carefulreading1.ReadPara1carefullyandanswerthequestion.Howmanyyearshastherebeenlifeontheearth?2.ReadPara2quicklyandanswerthequestion.Whydon’tscientiststhinktheywillfindlifeonotherplanets?3.ReadPara2carefullyagainandfill.Theearthisa______.Thesunisa________.Thesunanditseightplanetsarecalled____________.Ourgalaxyiscalled______________.Therearemanyothergalaxiesinthe________.4.ReadPara3carefullyandtalkaboutthepicture.5.ReadPara4carefullyandanswerthequestions.Havescientistssentthespaceshipstootherplaces?Where?6.ReadPara5anddiscussthequestions.Withsomanystarsintheuniverse,arewealone?Istherelifeoutthereinspace?Havetherebeenvisitorstotheearthfromotherplanets?Whyhasnoonecommunicatedwithus?设计意图：通过精读，分段阅读，帮助学生理解文章的细节信息。Step=4\*ROMANIVPost-readingActivity3&4SsclosethebooksandfinishActivity3and4,thenchecktheanswerswiththeirpartners.设计意图：通读课文做练习，完成对知识的输出，培养知识输出的能力。RetellSsfillintheblanksandthenretellthepassageaccordingtothemind-map.设计意图：通过思维导图的方式让学生复述文章内容，帮助学生整体把握文章结构，加深对文章整体内容的理解。LanguagepointsTexplainssomelanguagepoints.1.Scientiststhinkthattherehasbeenlifeontheearthforhundredsofmillionsofyears.本句中的hundredsofmillionsof表示“数以亿计的”。【拓展】hundred,thousand与million：hundred百，thousand千，million百万，这几个词前面有具体的数词（one,two…）修饰时，不能在它们的后面加s和of。hundred，thousand，million，billion等数词表示不确切的数目时，在词尾加s，且和of连用，表示“数百”、“数千”、“数百万”、“数十亿计的”。这几个带of的短语前不能加具体数字，可以加some，several，hundredsof等。2.Noneofthemhasanenvironmentlikethatoftheearth…none做代词，意为“没有人；一个也没有；没有任何东西”。【拓展】none与noone：none表示“没有任何”，不仅指人也可指物，其后常接of短语，构成“noneof+名词/代词”结构，当名词或代词为复数时，谓语动词用单复数均可，通常回答howmany/howmuch引起的问句。noone=nobody表示“没有人”，指人，不能接短语，当它做主语时，谓语动词用第三人称单数，通常回答who引起的问句。3.Itisimpossibletoimagine.impossible形容词，意为“不可能的；（事情）办不到的”，它是由possible（可能的）加上否定前缀im-构成的形容词。Itisimpossible(forsb.)todosth.意为“（对某人来说）做某事是不可能的”。Activity51.Sslookatthepicturefromasciencestoryforchildrenandanswerthequestions.T:Pleaseimagineandtalkaboutthesequestionsingroups.设计意图：联系实际，培养学生的英语口语交际能力和合作能力。Activity61.TasksSstowriteapassagetodescribethepictureinActivity5.T:OK.Nowpleasewriteapassagetodescribethepicture.UseyouranswerstothequestionsinActivity5tohelpyou.Ssworkinpairs,checkthecompositionwitheachotherandgivesuggestionstomakethewritingbetter.Choosesomeexcellentonestoshowinclassandeveninschool.设计意图：学生在上一活动基础上进行连句成篇，提高写作能力。学生互相检查作文并提出修改意见，提高学生英文写作的主动性。2.Tshowsonepossibleversionandgivessomeinstructions.设计意图：通过小组合作探究，学生在写作过程中可以相互纠正错误。ExercisesTasksSstodotheexercises.一、根据句意写单词。1.Everyoneknows______travelsmuchfasterthansound.2.______ofuslikethisbadTVprogramme.3.Theflowerswill_____welliftheygetenoughwater.4.Thesolarsystemisasmallpartofour________.5.Wehaven’t________lifeonotherplanetsyet.二、句型转换。1.IhavebeentoAmericabefore.（变成一般疑问句）___________________________________________2.have,finished,not,I,homework,my（连词成句）___________________________________________3.She___________theGreatWalltwice.（选hasgoneto/hasbeento填空）4.Ithinkhewillcometoyourbirthdayparty.（改为否定句）I_____________________cometoyourbirthdayparty.CulturalBackgroundTintroducestheknowledgeaboutthenamesofthedaysoftheweek.设计意图：通过展示一周中每一天的名字的相关内容，帮助学生了解天文与日常生活的关系。StepVSummaryTheearth:Therehasbeenlifeonitforhundredsofmillionsofyears.Sevenotherplanets:Thereisnolifeonthem.Noneofthemhasanenvironmentlikethatoftheearth.Scientists:Theyhaved