高中英语必修三unit4教案

河南省淮阳县实验高中高一英语组1河南省淮阳县实验高中教案主备教师：雷欣二次备课教师：编号：19课题：Unit4Astronomy:thescienceofthestarsPeriod1WanrmingUpandReading教学目标：1.Developstudents’readingabilityandletthemlearndifferentreadingskills.2.Enablestudentstoknowaboutthedevelopmentoftheearth.教学难点：1.Enablestudentstounderstandthepassageandknowaboutthedevelopmentoftheearth.2.Letstudentslearnhowtousedifferentreadingskillsfordifferentreadingpurposes.教学方法:Skimming,discussion,individualworkandgroupwork.教学过程：【自研课导学】1.Letstudentslearntheusefulwordsandexpressionsinthispart:astronomy,system,religion,theory,atom,billion,globe,violent,atmosphere.2.Getstudentstolearnaboutthedevelopmentoftheearth.【展示课导学】Step1:Leading-inHaveafreetalkwithstudents.1.Letstudentsdiscussthefollowingquestions:Whoareourancestors?Doyouknowwhatitwaslikebeforelifeappearedontheearth?Doyouknowhowlifebeganontheearth?Doyouwanttogetmoreinformation?2.Tellstudents:Todaywewilllearnsomethingabouthowlifebeganontheearth.TurntoPage25.Let’scometoWarmingUpfirst.Step2:Warmingup二次备课河南省淮阳县实验高中高一英语组2Letstudentsthinkaboutthefollowingquestionsandthendiscussthemwiththeirpartners.1.Inoursolarsystemeightplanetscirclearoundthesun.Whatarethey?Canyoumatchthenameswiththeplanets?(P25)2.Whatinterestsyouinastronomy?Doyouknowanyquestionsthatastronomersareinterestedin?Step3:Pre-reading1.Getstudentstodiscussthequestionswiththeirpartners.1)Theoriginoflifeonearthisaquestionthatinterestsastronomers.Whatdoyouknowaboutit?2)Eachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknowaboutthem?2.Askthemtoreadthetitleandlookatthepictures.Predictwhatthereadingwillbeabout.Step4:Reading1.Fastreading:ScanningGetthestudentstoreadthepassagequickly.Givetenminutestolookthroughthewholetextandanswerquestions:1).Whatisthepassageabout?2).What’sthemainideaofthetext?2.DetailreadingChoosethebestanswertoeachquestionaccordingtothetext.1).Whatisimportantforthebeginningoflife?A.Thewaterontheearth.B.Theearth’satmosphere.C.Theformofforests.D.Dissolvingharmfulgases.2)Whichofthefollowingappearedontheearthfirst?A.Insects.B.Reptiles.二次备课河南省淮阳县实验高中高一英语组3C.Amphibians.D.Shellfishandfish.3)Whichofthefollowingstatementstrue?A.WaterstillexistsonMars.B.Theearth’satmosphereismadeupofoxygenandnitrogen.C.Theearthhaddissolvedtheharmfulatmosphereintotheoceansandseas.D.Plantsprovideoxygentotheearth.4)Whatisthepassagemainlyabout?A.Theappearanceanddevelopmentoflifeontheearth.B.Thebirthoftheearth.C.Whydinosaursdiedout.D.Thefactthathumanbegingscausedglobalwarming.Suggestedanswers:(1)A(2)D(3)D(4)A【板书设计】____________________________________________________________________________________________________________________________________________________________________________________________________________________【教学反思】______________________________________________________________________________________________________________________________________________________________二次备课