unit16课件
日期：2010-08-16 08:38
inventor，Franklin’sfamouskiteexperimentStep1Lead-in2Questions:Todaywe’lllearnaboutafamousexperimentdonebyafamousman-----Franklin(HewasoneofthefoundingfatheroftheUS，writerandscientists)Haveyoueverheardabouthisfamouskiteexperiment?Whatwasitabout?Haveyoueverheardabouthim?Whichcountrywashefrom?Whatdidhedo?Step2While-readingSkimming----WhydidFranklindothisexperiment?----Wasitsuccessful?----Ofthetwopictures，oneisfalsePickoutthefalseone2ScanningT/Fquestionsfrompage25In1752scientistsalreadyknewwhatelectricityisFranklinwashelpedbyafriendtodotheexperimentFranklinmadethekiteofsilkbecausewetsilkdoesnotconductelectricity，
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