Module53rdperiod教案外研版必修

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1、TheThirdPeriodTheGeneralIdeaofThisPeriodInthisperiodwe’regoingtolearnanotherreadingpassage.TeachingAims1　.Learnandmasterthefollowingwordsandexpressions:rust　boilordinary　steam　float　form　dissolve　addto　keepoutof2.　Learntodescribeasimplescientifi

2、cexperiment.TeachingDifficultPoints1.　EnabletheSstowriteareportonascientificexperiment.2.　Learntousethenewwordsandexpressionsinthispart.TeachingMethodsReading,　questionandanswer.TeachingAids1.　ataperecorder2.　acomputer3.　sometesttubes,　nails,　

3、Bunsenburner,　balance,　tongsTeachingProceduresStep1Greetings　Greetthewholeclassasusual.Step2Revision　ShowthemetalslearnedinthelastperiodtotheclassandaskthemtonametheminEnglish.Step3Presentation　Readthepassagetofindtheanswerstothequestions.1.　

4、What’stheaimoftheexperiment?2.　Whatequipmentdoweneedinordertodotheexperiment?3.　Howlongdoesittaketoseewhetherironrustsinthethreecases?4.　Howcanwetaketheairoutofwater?5.　Howcanoilpreventairenteringwater?(Showthequestionsaboveonthescreen.)Step4Reading

5、　Readthepassageindividuallyandthendiscussinpairsorgroups.　It’sagoodtimetolearnthenewwordsandunderstandthemeaningofthepassage.Step5CallbacktheanswersfromtheSs　1.　Itistofindifironrustsindryair,　inair－freewaterorinordinarywater.2.　Weneedsometesttubes

6、,　testtubeholder,　cottonwool,　oilandBunsenburner.3.　Aweek.4.　Wecantakeairoutofwaterbyboilingit.5.　Becauseoilislighterthanwater,　itstaysonthesurfaceofwater.Step6Learnthenewwords　1.　AsktheSstopickoutthenewwordsinPassageB.Writethewordsonthe3用心爱心专心bl

7、ackboard.rust,　testtubes,　nails,　Bunsenburner,　boil,　ordinary　　　　　　　　　　　　　　2.　Readthenewwordsafteryoutwice.Bringouttheapparatusonthedesk.Step7Carefulreading　T:　Well.　Nowrereadthepassagecarefullytofurtherunderstandit.Thenworkinpairstofillintheblank

8、sonPage45.Step8Languagepoints　1.　Addsomeoiltothewater.在水中加点油。addsth.tosth.elseAddsomesugartothesoup.在汤里加点盐。Heplannedtoaddaroomtohishouse.他打算再扩建一间屋子。Fiveaddedtotenmakesfifteen.五加十等于十五。2.　Thiswillkeepairoutofthewater.这会使空气不进入