2019-2020年高中英语（人教大纲）第三册：Unit4 Green world(第四课时)

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1、2019-2020年高中英语（人教大纲）第三册：Unit4Greenworld(第四课时)TeachingAims:1.Getthestudentstograspthemainideaofthetextsoastoimprovetheirreadingability.2.Getthestudentstolearnthescientificwayforthescientiststodotheirresearchwork—thewaytothinkandobserve.3.Getthestudentstowriteadescriptionofplants.TeachingI

2、mportantPoints:1.Howtoanalyseanarticlesoastograspitsmainidea.2.Howtowriteadescriptionaccordingtotheinformationgiven.TeachingDifficultPoint:Howtoimprovethestudents’readingability—howtoanalyseanarticle.TeachingMethods:1.Pairworkorgroupworktomakeeverystudenttakeanactivepartintheclass.2.D

3、iscussiontogetthestudentstounderstandwhattheyarelearningbetter.TeachingAids:1.aputer2.acourseware3.ataperecorderTeachingProcedures:StepⅠGreetingsandRevisionGreetthewholeclassasusual.T:Inthelastperiod,youweretoldtomakesentenceswiththeusefulwordsandexpressionsinthetext.Haveyougotprepar

4、ed?(Ss:Yes.)Nowreadthesentencestous.Volunteer!Onestudent,onesentence.Sa:makeattempttodosth.Theymadenoattempttoescape.(atescaping)Sb:classifyThebooksinourschoollibraryareclassifiedaccordingtosubject.Sc:groupGrouptogetherintwo!SD:identificationHecarriesidentificationwithhimatalltimeswh

5、enheisout.SE:promoteHeworkstopromotethefriendshipbetweenthetwocountries.SF:privilegeTheyfightagainstprivilegeinordertocreateafairersociety.SG:cosyHelivesinanicecosylittlehouse.SH:haveanappetiteforTheenemyhadnoappetiteforthefight.SI:appointHewasappointedministertoaforeigncountry.SJ:

6、calculateThescientistscalculatedwhenthespaceshipwouldreachthemoonwithacalculator.SK:onalargescaleTheworkofreformingindustrycarriedoutinallprovincesonalargescale.SL:involveThecaseinvolvedseveralleaders.Sm:accumulateHeaccumulatedafortunebyinvestingwisely.Sn:abandonHefoundababyabandone

7、dbyhisparents.StepⅡPreparationforReadingT:Somuchforhomework.NowopenyourbooksandturntoPage169.Let’sreadthenewwordsandexpressionsofthisperiod.Whowillreadthemtous?Sa:I’lltry....(Teacheraskssomestudentstoreadthenewwordsandexpressions.Whilereading,le