高中英语必修三unit4教案.doc

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1、二次备课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.Enablestudentstounderstandthepassageandknowaboutthedevelop

2、mentoftheearth.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.Getstud

3、entstolearnaboutthedevelopmentoftheearth.【展示课导学】Step1:Leading-inHaveafreetalkwithstudents.1.Letstudentsdiscussthefollowingquestions:Whoareourancestors?Doyouknowwhatitwaslikebeforelifeappearedontheearth?Doyouknowhowlifebeganontheearth?Doyouwanttogetmoreinformation?2.Tellstudents:Todaywewillle

4、arnsomethingabouthowlifebeganontheearth.TurntoPage25.Let’scometoWarmingUpfirst.Step2:Warmingup二次备课Letstudentsthinkaboutthefollowingquestionsandthendiscussthemwiththeirpartners.1.Inoursolarsystemeightplanetscirclearoundthesun.Whatarethey?Canyoumatchthenameswiththeplanets?(P25)2.Whatinterestsy

5、ouinastronomy?Doyouknowanyquestionsthatastronomersareinterestedin?Step3:Pre-reading1.Getstudentstodiscussthequestionswiththeirpartners.1)Theoriginoflifeonearthisaquestionthatinterestsastronomers.Whatdoyouknowaboutit?2)Eachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknow

6、aboutthem?2.Askthemtoreadthetitleandlookatthepictures.Predictwhatthereadingwillbeabout.Step4:Reading1.Fastreading:ScanningGetthestudentstoreadthepassagequickly.Givetenminutestolookthroughthewholetextandanswerquestions:1).Whatisthepassageabout?2).What’sthemainideaofthetext?2.DetailreadingChoo

7、sethebestanswertoeachquestionaccordingtothetext.1).Whatisimportantforthebeginningoflife?A.Thewaterontheearth.B.Theearth’satmosphere.C.Theformofforests.D.Dissolvingharmfulgases.2)Whichofthefollowingappearedontheearthfirst?A.Insects.B.Reptiles.二次备课C.