unit16scientistsatwork课件
日期：2010-06-18 06:01
Warmingup，listeningTeacher:LornaWhatsubjectsdoyoulearnthisterm?ChineseEnglishMathematics/MathsPhysicsBiologyChemistryHistoryPoliticsComputerMusicPaintingPEforceelectricitygassolidliquidlivingthingslightsoundplantanimalflamecloningSciencedoanexperimentinphysicsdoanexperimentinchemistrydoanexperimentinbiologyWhatdowehavetobecarefulwithdoinganexperiment?(safetyinstructions)Tasktwo()Safetyinthelab()experiments()caraccidents()gloves()longhair()shoes()gases()liquids()flamesTicktheanswersthatMrsZhutalksabout√√√√√1Whatisthefirstthingstudentsshoulddowhentheycomeintothelab?ApreparefortheexperimentsBFollowtheteacher’sinstructionsCTurnonthelightsandtouchtheequipment2Whatshouldwedotosmellthegases?AputyournoseoverthebottleandsmellitBwaveitinourdirectionandcarefullysmellitCwaituntilthesmellofthegasesisnotstrongandsmellit3Whatis，
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