《Unit3Onlinetravel》Period6Grammar（2）Teachingaims:1.Tobecomefamiliarwiththefunctionoftheword‘by’toindicatetheagentwhodoessomething.2.Tocompletesomeexercisestopracticeusingthepassivevoice.Step1greeting&presentingExplainthatwecanalsousethepassivevoicewhenwewanttomentionthedoeroragentwhodoessomething.Introducetheconceptof“by”whichenablesustosaythenameofthedoer.Wecanuse“by”tosaywhoorwhatdoestheaction.Step2TeachingPresentthesamplesentencesintableformstogiveSsavisualsupportfortheconcept.Changetheactivevoicesentencesintothepassivevoicesentences.(1)Mr.LinorganizesactivitiesfortheComputerClub.(2)NancyJacksondesignedthatCD-ROM.AskSstocomplete“workouttherule!”ontheirown.Askavolunteertoreadouttherule.Step3ExerciseFinishtheexciseonPage48&Page491.AskSstostudythepicturescarefullyandthewordsbeloweachone.Ssidentifyanywordstheydonotknow.HelpSsunderstandthemeaningsofwordssothattheyareabletoenjoythefunelementoftheoverallstoryratherthanspendtoomuchtimeonvocabularydetails.Youmayhavetoreview‘magicwand’,‘princess’and‘witch’.Explainthecontextandinstructions.2.AskSstowriteoutthesentencesforPartB1ontheirown.3.AsksevenSstoreadoutonesentenceeach.RepeatthesentencesclearlyandaskSstochecktheirownwork.Step4exerciseCompletethesentencesinthepassivevoice.Usethecorrectformsoftheverbsinthebox.Step4Homework.buildeatpaintstealcatchgrowsellwrite
