Unit16Scientistsatwork课件
日期：2010-09-21 09:48
asilkribbon，apieceofsilk，Pre-reading1Doyouknowthenamesofsomefamousscientists?Whataretheyfamousfor?2Inthe18thand19thcenturiesscientistsallovertheworldmademanyimportantdiscoveriesCanyounamesomeofthem?3Whyarethesediscoveriesimportant?4Canyoudescribeascienceexperimentthatyoudid?Wasitsuccessful?Whatdidyoulearnfromit?Discussthefollowingquestions:SomeFamousScientistsScienceReport:KiteExperimentToshowthatlightningandelectricityarethesameSomewoodensticks，asmallshed，somestring，athunderstormwithlightningParagraphs5and6Paragraph3Theelectricitystoredinthecondensercanbeusedtodootherexperiments，acondenser，averysharppieceofmetal，akey，whichprovesthatlightningandelectricityarethesameHowdidFranklinusehiscreativitytoovercomevariousproblemsforhisexperiment?1Wecannotgoandlookforlightning，soFranklinhastofindawaytomakelightningcometohim:heattractedlightningusingakite2Akitemadeofpaperwon’tlastlonginrainyweather，sohehastomakeastrongkite:hemadehiskiteofsilk3Asilkkitedoesn’tattractl，
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