人教版高中英语必修三unit4-reading(公开课)

thescienceofthestarsUnit4AstronomyAstronomy?AreyouinterestedinStep1Aquizonastronomy3.Earthistheonlyplanetmovingaroundthesun.Part1:TrueorFalseTheearthmovesaroundthesun.TF2.Ittakestheearthonedaytomovearoundthesun.4.Thereisatmosphereonthemoon.5.Theearthistheonlyplanetinthesolarsystemwhichhaslivingcreatures.ayear8planetsnoFFTMercury水星Venus金星Earth地球Mars火星Jupiter木星Saturn土星Uranus天王星Neptune海王星Doyouknowhowtheuniversebeganaccordingtochineseculture?InChina,weallknowthatPanguseparatestheskyfromtheearth.Let’sbrainstormthefollowingquestionsChineseLegends(传说)Panguseparatedtheskyfromtheearth.Hiswholebodythenturnedintoallkindsofthingsintheuniverse.盘古开天辟地2.Trytoputtherightorderofdevelopmentoflifeontheearth???Ifyouwanttoknowmore,pleaseturntoPage25①②③④⑥⑦⑤Lookattitleandthepictures.Canyougetsomeinformationaboutwhatwewilllearnfromthetext?Bigbang???Theevolution(development)oflifeontheearth???Thetextmaytellusthe___________oftheearthandthe___________oflifeonit.HowlifebeginontheearthPre-readingPre-readingFastreadingMatchthemainideawitheachparagraphy.Para.1Theformation(形成)oftheearth.Para.2Theimportanceofwaterforlife.Para.3Awidelyacceptedtheoryabouttheformationoftheuniverse.Para.4Thearrivalofhumansandtheirimpactontheearth.Para.5Thedevelopmentofplantsandanimalsontheearth.CarefulreadingTaskone(para1)WhatisthewidelyacceptedtheoryinPara1?Theuniversebeganwitha"BigBang"thatthrowmatters...bodies.acloudof_____BigBangasolid_______slowlycombinetheearth______downitexplodedloudlywith_____and_____theearth’s___________dustball/globefirerockatmospherecooledHowdidtheearthcomeintobeing(产生）?Tasktwo(para2)Whyiswatersoimportantforthebeginningoflife?paragraph3dissolveharmfulgasesandacidsintotheoceansandseas.Becausewaterallowedtheearthto—————————Whatlifedevelopedafterwaterappeared?Paragraph4smallplantsgreenplantsforestearlyshellfishandallsortsoffishinsectsandamphibiansreptilesdinosaursmammalsAbout2.6millionyearsagoNowHumansproducetoomuchcarbondioxide,makingtheearthtoohottolivein.Para5Afterthecleveranimals(humans)becameimportantontheearth,whathappened?Answerquestion1234567Let’scheckwhetherweputtherightorderatfirst.Areyouright?①②③④⑤⑥⑦TaskthreePleasereadthetextagain,thenputtheorderofthesesentences.(exercise2,page27)□Insectsandamphibiansappeared□Theearthbecameasolidball□Reptilesappeared.□Theearthwasacloudofdust.□Shellfishandotherfishappeared.□Cleveranimalswithhandsandfeetappeared.□Dinosaursappeared.□Smallplantsgrewonthewater.□Plantsbegantogrewontheearth.□Waterappearedontheearth.□Theuniversebeginwitha“bigbang”□Mammalsappeared.BigBang4.5-3.8billionmanymillionyearslater2.6millionNow⊕⊕⊕●●●●●●●●★TimeEventsBigBangdustsolidglobewaterappearssmallplantsshellfishandfishplantsgrowonthelandinsectsandamphibiansreptilesdinosaurmammalscleveranimalshumanslifeearthSumupThetextmaytellusthe___________oftheearthandafter________appear,the___________oflifeoneafteranotheronit.formationwaterdevelopmentInthelastparagraph,weknowhumansfaceseriouslyglobalwarmingproblem,whichisthreateningourexistence.Canyouwritesomethingtocallonustoprotectourenvironment?DiscussionTheearthweliveinisbecomingmoreandmoreterrible,sowemusttakemeasurestodealwithitFirstly:Secondly:Thirdly:Wehopetheenvironmentwillbecomemoreandmorebeautiful.SampleTheearthweliveinisbecomingmoreandmoreterrible,sowemusttakemeasurestodealwithitFirstly,thegovernmentshouldpasslawstopreventpeopleandfactoriesfrompollutingtheenvironment.Secondly,everyoneshouldrealizetheimportanceoftheproblemandtrytheirbesttoprotecttheenvironmentandfightagainstpollution.Besides,it’sagoodideastoplanttreestoimprovetheenvironment.Wehopeourearthwillbecomemoreandmorebeautiful.例文1.Learnthenewwordsbyheart2.Listentotherecordingofthetext,andparaphrasethedifficultsentencesinthetext.Homework