高中英语人教大纲第三册：Unit4Greenworld(第二课时)

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1、TheSecondPeriodTeachingAims:1.Getthestudentstolearnandmasterthenewwordsandexpressions:makeattempttodosth.,classify...into,group,haveanappetitefor...,onalargescale,involvein,abandoned2.Getthestudentstolearnthewholetextandgraspthemainideaofittoimprovetheir

2、readingability.3.Learnthefinequalityofthescientistsinthetext.TeachingImportantPoints:1.Mastertheusagesoftheusefulwordsandexpressionsabove.2.Improvethestudents’readingability.TeachingDifficultPoints:1.Theusagesofsomewordsandexpressions.2.Howtotrainthes

3、tudents’readingabilityinlearningthetext.TeachingMethods:1.Explanationtogetthestudentstohaveaclearidea.2.Discussiontogetthestudentsgraspthemainidea.3.Comparisontogetthestudentstounderstandthetexteasier.TeachingAids:1.acomputer2.acourseware3.ataperecor

4、derTeachingProcedures:StepⅠGreetingsandLead-inTeachergreetsthewholeclassasusual.T:Inthelastperiod,Itoldyoutodescribetheprocessofplantingandgrowthoftheyoungplant.NowI’llletonestudentdothisbeforeclass.ZhangJian,dothis,please....(Teacherasksthreestudentsto

5、dothedescription.Thenteacherandstudentslearnthenewwordsandexpressionsofthisperiod.Teacherasksonestudenttoreadthemandthenletanotherstudentcorrectthemistakesifthereareany.Intheend,teachergivesbriefexplanationsifnecessary.)StepⅡFast-reading(ShowthepicturesofM

6、ichurinandDarwin.)5用心爱心专心T:Doyouknowthetwoscientists?Ss:Yes.TheyareMichurinandDarwin.T:Whichcountrydidtheycomefrom,doyouknow?Sa:MichurinwasaRussianandDarwinwasafamousBritishnaturalist.T:Whataretheyfamousfor?Sb:MichurinisfamousforgraftingplantsandDarwin

7、isfamousforhisbook,OntheOriginofSpecies.T:(Showthefollowingonthescreen.)Inthisclass,we’lllearnaboutsomeotherscientists.TheyareCarlLinnaeus,DanielSolanderandJosephBanks.Readthetextfastandtrytograspthemainideaofthewholetext.Thendotheexercisesonthescreen.Yoush

8、ouldwritetheans-wersonapieceofpaper.Later,I’llcollectthefirstfivepieces.Readthewholetextandthenchoosethebestanswers.1.Inthesixteenthcentury,botanywasabranchof_________.A.biology　　　　　B.physics