unit16(2)课件
日期：2010-12-01 12:19
abolitionist，Unit16ScientistsatworkPre-readingReadingPost-readingPre-readingDoyouknowthesescientists?Whataretheyfamousfor?AlbertEinstein爱因斯坦ThomasEdison爱迪生MarieCurie居里夫人StephenHawking史蒂芬·威廉姆·霍金YuanLongping袁隆平BenjaminFranklinBenjaminFranklin(January17，knownalsoforhismanyquotationsandhisexperimentswithelectricityHecorrespondedwithmembersoftheLunarSocietyandwaselectedaFellowoftheRoyalSocietyIn1775，philanthropist，scientist，1790)wasanAmericanjournalist，author，diplomat，FranklinbecamethefirstUSPostmasterGeneralPairworkIntheeighteenthandnineteenthcenturiesscientistsallovertheworldmademanyimportantdiscoveriesCanyounamesomeofthem?SkimmingReadthepassagecarefully，andinventorwhowasalsooneoftheleadersoftheAmericanRevolution，publicservant，1706-April17，publisher，andthenanswerthefollowingquestions:WhydidBenjaminFranklindothisexperimentwiththekite?HewantedtoprovethatlightningandelectricityarethesamethingSkippingTrue(T)orFalse(F)1In1752scientistsalreadyknewwhatelectricityis()2Franklinwashelpedbya，
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