Unit 16 Scientists at work2.doc

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1、Unit16Scientistsatwork2Unit16Sientistsatr一、明确教学目标1Develpthestudentsreadingabilit,espeialltheirreadingprehensin2Readthereadingpassageandnabut3Enablethestudentstntheseriusattitudetsiene二、教学过程Step1Presentatin（整体感知）Dunthenaesfsefaussientist?hatarethefausfr?EinsteinD

2、arinNetnEdisnarieurieFranlinRelativetherEvlutinGravitEletriBulbRadiativititeexperientTdaeettheReadingItsabutAsealln,BenainFranlinisafausplitiian．Buttda,eillreadapassageabuthiasasientistHisseriusattitudetsieneLet’sseehFranlinadehisfauseletriitexperientbflingaite．

3、Step2Pre-readingdisussinseallnthatitisthesientists’greateffrtthataesthegreatahieveentnsieneuldunaesesientistsnaes?Andhatarethefausfr?Trtfillintheblansfthefllingfr,ifuant,asurlassatethelpu．Fr:inthe18th≈19thenturiessientistsallvertherldadeaniprtantdisveries．Giv

4、eseexaple．PhsisediineheistrBilgSefaussientistsare:Arhiedes:atheatisandphsis:hedisveredpi(π)Darin:bilg:hedisveredthattheanestrsfpepleerenesurie:phsis:shedisveredradiuandradi&nt;ativitNetn:phsis:hedisveredhallthingsfalldntearthPhsisediineheistrBilg√adaeurie√Flrene

5、Nightingale√atsn≈ri√BeatrixPtter(Radiativit)(Pieharts)(DNA)(’seeds’fushrs)√IsaaNetn√hnSn√Ga-Lussa√harlesDarin(gravit)(spreadfdisease)(Gaslas)(Evlutin)√Lrdelvin√LuisPasteur√endeleev√arlLinnaeus(lestteperature)(gers)(PeridiTablefeleents)(Naingplants)Step3Read

6、ingFastreadingListentthetapeandanserthefllingquestin1astheexperientdneinune172suessful?es,theexperientassuessful2hatdidthisexperientprve?Thisexperientprvedthatlight-ingandeletriiterethesaeReadthetextarefullagain,andgivethestudentsseexplanatinsGetthestudentsreadt

7、hetestandthendeideifthefllingstateentsaretrue(T)rfalse(F)1．In172sientistsalreadnehateletriitisT2．Franlinashelpedbafriendtdtheexperient3．Franlinadetheitefsilbeauseetsildesntnduteletriit4．AndenserasusedintheexperienttstreeletriitT．Theetiedtthestringasputintthedrts

8、tpheitefrflingaa6FranlinndutedtheiteexperientinsunndasReadhepassageandthenfinduttheainidea．Paragraph1IntrdutinfFranlin’sexperient．Paragraph2—3Thepressftheexperient．Pa