人教版高中英语必修3 Unit4-reading(公开课)

thescienceofthestarsUnit4Astronomy:newwordstheory:学说；理论atom:原子globe:球体；地球violent:猛烈的atmosphere:大气层；气氛fundamental:基本的；基础的chainreaction:连锁反应multiply:乘；增加；繁殖shellfish:水生有壳动物amphibian:两栖动物reptile:爬行动物；爬虫mammal:哺乳动物cenozoic：新生代（的）mesozoic:中生代（的）paleozoic:古生代（的）ChineseLegends(传说)Panguseparatedtheskyfromtheearth.Hiswholebodythenturnedintoallkindsofthingsintheuniverse.盘古开天辟地2.Trytoputtherightorderofdevelopmentoflifeontheearth?Ifyouwanttoknowmore,pleaseturntoPage25①②③④⑥⑦⑤Lookattitleandthepictures.Canyougetsomeinformationaboutwhatwewilllearnfromthetext?Thetextmaytellusthe___________oftheearthandthe___________oflifeonit.Pre-readingPre-readingFastreadingMatchthemainideawitheachparagraph.Thedevelopmentofplantsandanimalsontheearth.Para.1Para.2Para.3Para.4Para.5Theformation(形成)oftheearth.Theimportanceofwaterforlife.Awidelyacceptedtheoryabouttheformationoftheuniverse.Thearrivalofhumansandtheirimpactontheearth.CarefulreadingTaskone(para1)WhatisthewidelyacceptedtheoryinPara1?TheuniversebeganwithaBigBangthatthrowmatters...bodies.acloudof_____BigBangasolid_______slowlycombinetheearth______downitexplodedloudlywith_____and_____theearth’s___________dustball/globefirerockatmospherecooledHowdidtheearthcomeintobeing(产生）?Tasktwo(para2)Whyiswatersoimportantforthebeginningoflife?paragraph3Becausewaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.Whatlifedevelopedafterwaterappeared?Paragraph4smallplantsgreenplantsforestearlyshellfishandallsortsoffishinsectsandamphibiansreptilesdinosaursmammalsAbout2.6millionyearsagoNowHumansproducetoomuchcarbondioxide,makingtheearthtoohottolivein.Para5Afterthecleveranimals(humans)becameimportantontheearth,whathappened?AnswerquestionTasktwoPleasereadthetextagain,thenputtheorderofthesesentences.(exercise2,page27)□Insectsandamphibiansappeared□Theearthbecameasolidball□Reptilesappeared.□Theearthwasacloudofdust.□Shellfishandotherfishappeared.□Cleveranimalswithhandsandfeetappeared.10346512□Dinosaursappeared.□Smallplantsgrewonthewater.□Plantsbegantogrewontheearth.□Waterappearedontheearth.□Theuniversebeginwitha“bigbang”□Mammalsappeared.7891211BigBang4.5-3.8billionmanymillionyearslater2.6millionNow⊕⊕⊕●●●●●●●●★TimeEventsBigBangdustsolidglobewaterappearssmallplantsshellfishandfishplantsgrowonthelandinsectsandamphibiansreptilesdinosaurmammalscleveranimalshumanslifeearth1234567Let’scheckwhetherweputtherightorderatfirst.Areyouright?①②③④⑤⑥⑦SumupThetextmaytellusthe___________oftheearthandafter________appear,the___________oflifeoneafteranotheronit.formationwaterdevelopmentInthelastparagraph,weknowhumansfaceseriouslyglobalwarmingproblem,whichisthreateningourexistence.Canyouwritesomethingtocallonustoprotectourenvironment?DiscussionTheearthweliveinisbecomingmoreandmoreterrible,sowemusttakemeasurestodealwithit.Firstly:Secondly:Thirdly:Wehopetheenvironmentwillbecomemoreandmorebeautiful.SampleTheearthweliveinisbecomingmoreandmoreterrible,sowemusttakemeasurestodealwithitFirstly,thegovernmentshouldpasslawstopreventpeopleandfactoriesfrompollutingtheenvironment.Secondly,everyoneshouldrealizetheimportanceoftheproblemandtrytheirbesttoprotecttheenvironmentandfightagainstpollution.Besides,it’sagoodideastoplanttreestoimprovetheenvironment.Wehopeourearthwillbecomemoreandmorebeautiful.例文1.Learnthenewwordsbyheart2.Listentotherecordingofthetext,andparaphrasethedifficultsentencesinthetext.HomeworkTHANKYOU