高中英語-How-Life-Began-On-The-Earth教學(xué)設(shè)計學(xué)情分析教材分析課后反思

必修三Unit4"HowLifeBeganOnTheEarth"教學(xué)設(shè)計TeachingAims：Todevelopthestudents’readingabilityTolearnsomethingaboutastronomyToarousethestudents’strongemotionof“Protectingourearth”Teachingaid:AcomputerwithInternet&thenetworkcoursewareTeachingprocedure:Step1preparationbeforeclass&leadinTogetthestudentsfamiliarwiththeknowledgeabouthowtheearthcameintoexistenceandhowlifebegan.Therearethreedifferentopinionsonthispoint.OneisfromChinesefairytalethatPanguseparatedtheheavenfromtheearthandnvwamadethehumanbeings,anotherisareligiousideafromwesternerswhichholdsthatit'sGodwhocreatedtheworld,thethirdisthescientifictheoryabout"BigBang"andtheevolutionoflifefromsimplethings.Inthisnetworkcourseware,Idesignedthepartcalled"KnowledgeBackground"(背景知識)。Itintroducesthecurrentastronomyinformationathomeandabroad,aswellasavideowhichcanhelpstudentsestablishascientificoutlookonthetopicofthisunit.Thencomesthe"lead-inpart".I'llbeginthelessonwithanothersplendidvideo.It'llsurelyarousethestudents'interestin"Wherearewefrom?""Howlifebeganontheearth?".Step2ReadingThissectionisthemostimportantoneinthislesson.Here,Idividedtheactivityintothreeparts,including"Skimming""Detailedreading""Athirdreading".Wecanclickcorrespondingitemtobrowsethewebpageandcompletethetasksonit.Activity1:Skimthepassageandmatchthemainideawitheachparagraph.Activity2:Readthetextcarefully,andputthefollowingwordsincorrectorder.Activity3:Readagaintogetmoredetailedinformationandanswertherequiredquestions.Whatintheprocessdoyouthinkisthemostimportant?Why?(Showyourownopinions)Whatisthedifferencebetweenreptilesandmammals?Whatproblemiscausedbyhumanbeings?Withthehelpof"Thecontentofthetext"(課文內(nèi)容)inthecourseware,thestudentscanfullyunderstandthecontentofthistext.Theycanalsotraintheirlisteningwhentimeavailable.Step3DiscussionAimingat"howtosolvetheproblemcausedbyhumanbeings",thestudentsshouldholdadiscussion.Thewholeclasscanbedividedintoseveralgroupstofinishthetaskthroughco-operationalwork.Theyshouldbeencouragedtodelivertheirownopinions.Step4Homework1、Workingroupstofinishacompletereportonhowtolivea“l(fā)owcarbon”life;2、Trytoretellthewholeprocess,usethefollowingconnectors.However,afterthat,next,later,finally,thus,asaresultofthisApartfromthehomeworkabove,IdesignedtheExtracurricularpracticesandreadingmaterialsintheware.Thestudentscanbrowsethewebpagestofinishthemandcheckanswersbythemselves.學(xué)情分析“HowLifeBeganOnTheEarth”這一話題雖然有趣，但本文的文體屬于科普類說明文，內(nèi)容抽象，用詞多專業(yè)術(shù)語，閱讀本文對高一學(xué)生來說有一定的難度。不過本文以時間為線索，使得學(xué)生較易讀懂本文的內(nèi)容；通過課前對本單元背景知識的準備和預(yù)習，學(xué)生已經(jīng)對本單元重要的單詞、短語有了初步的了解和記憶；學(xué)生語言綜合運用能力不是很好，需要給與一定的語言指導(dǎo)和幫助；通過對本文的閱讀，學(xué)生不僅可以了解地球上生命的起源以及發(fā)展過程，還可以掌握一些相關(guān)的語言知識。效果分析本節(jié)課主要圍繞“HowLifeBeganOnTheEarth”這一主題展開教學(xué)活動。通過學(xué)生”課前課中課后”多種多樣的閱讀活動，讓學(xué)生在理解掌握地球的形成、生命的進化，實現(xiàn)了本節(jié)課的知識目標，提高了學(xué)生的閱讀理解能力，激發(fā)學(xué)生“保護地球”意識情感。學(xué)生在各項學(xué)習活動中參與度高，態(tài)度積極，愿意學(xué)習，對課堂學(xué)習內(nèi)容把握到位。尤其是在小組活動中，每位成員都表現(xiàn)積極，能初步運用英語交流，達到語言學(xué)習課的最終目的——運用英語思考的能力。教材分析本單元的中心話題是“天文學(xué)”，內(nèi)容涉及太陽系、地球上的生命起源、宇宙大爆炸、月球探秘、黑洞效應(yīng)等，主要內(nèi)容圍繞地球上生命的起源展開的。本話題緊扣時代主題，能激發(fā)青少年崇尚科學(xué)、探索未知、敢于創(chuàng)新的熱情，本次閱讀課“HowLifeBeganOnTheEarth”通過對宇宙大爆炸理論進行科學(xué)性分析，推斷出地球上生命的由來以及生物進化的過程。這篇文章共有5個自然段，按照時間的先后順序一一展現(xiàn)了地球形成以及生命進化的各個階段，文章篇幅較長，理解起來不很容易，需要要學(xué)生在講課前頭了解相關(guān)背景知識和相關(guān)詞匯，通過課堂閱讀練習加以引導(dǎo)。評測練習一、根據(jù)句意填入單詞或短語的正確形式1.Theprofessorhasbroughtinagood（系統(tǒng)）ofteachinglanguagefromabroad.2.Therearemanytabouttheoriginoflife.3.Childrenshouldnotbeallowedtowatchvmovies.4.Ibelievetheaffairishtothecompany.5.Theoldladyeonlyoncoffeeandbread.6.Shelistenedwithapexpressiononherface.7.Themoon’spontheseacausesthewaves.8.Ihadintendedtocatchtheearlytrain,butIdidn’tgetup(及時)9.Whydoyouwanttokillthehensthat（下蛋）everyday?10.Manywomenplantogbabiesthisyear.11.Doctorssaymanydiseasescanbepspreadingbywashingourhands.12.Istayeduplastnight,sotodayIcan’tc.13.Nyouhavegrownup,youshouldnotdependonyourparents.14.DoyouknowwhentheSecondWorldWarb?15.Wforthecarswhenyoucrossthestreet.二、Unit4詞匯串記Ourgeographyteachersaystheearthisonlyoneoftheplanetsofthegiant.otherplanets,lifeontheearth,butlife’soriginisstillaDifferentandcultureshaveseparateideas.Theteachersaysitmaybedividedintofourstages.Thefirststageisabouthowtheuniversebegan.Awidelyacceptedcanexplainit.Afterthe“BigBang”begantoformandcombinetocreatestarsandotherbodies.Thesecondstageishowtheearthformed.Between4.5and3.8yearsago,cloudsanddustinspacesettledintoasolidTheearthbecamethatitoftenexploded.Theandwaterappeared.Waterisamatterforlifetoexistontheearth.Italsodissolvesgasesandacids.Thethirdstageisaboutplants’andanimals’appearance.Atfirst,plantsinthewaterappearedandTheyproducedwhichencouragesanimalsinthewatertoexist.Later,greenplantsonthelandcausedanimalsonthelandtoappear.Theyfirstandbecamebabies.Later,mammalsbabiesdirectly.Thelaststageisthathumansbecamethemostimportantanimalsontheearth.Weputtoomuchcarbondioxideinthetocauseglobalwarming.Wemusthowthingswillgoandmakelawstotheearthbecomingtoohot.wehavetakenmeasures,