Unit 16 Scientists at work.doc

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1、Unit16ScientistsatworkUnit16Sientistsatr一、明确教学目标1Develpthestudentsreadingabilit,espeialltheirreadingprehensin2Readthereadingpassageandnabut3Enablethestudentstntheseriusattitudetsiene二、教学过程Step1Presentatin（整体感知）Dunthenaesfsefaussientist?hatarethefausfr?EinsteinDarinNetnEdisnarieurieFran

2、linRelativetherEvlutinGravitEletriBulbRadiativititeexperientTdaeettheReadingItsabutAsealln,BenainFranlinisafausplitiian．Buttda,eillreadapassageabuthiasasientistHisseriusattitudetsieneLet’sseehFranlinadehisfauseletriitexperientbflingaite．Step2Pre-readingdisussinseallnthatitisthesientist

3、s’greateffrtthataesthegreatahieveentnsieneuldunaesesientistsnaes?Andhatarethefausfr?Trtfillintheblansfthefllingfr,ifuant,asurlassatethelpu．Fr:inthe18th≈19thenturiessientistsallvertherldadeaniprtantdisveries．Giveseexaple．PhsisediineheistrBilgSefaussientistsare:Arhiedes:atheatisandphs

4、is:hedisveredpi(π)Darin:bilg:hedisveredthattheanestrsfpepleerenesurie:phsis:shedisveredradiuandradiativitNetn:phsis:hedisveredhallthingsfalldntearthPhsisediineheistrBilg√adaeurie√FlreneNightingale√atsn≈ri√BeatrixPtter(Radiativit)(Pieharts)(DNA)(’seeds’fushrs)√IsaaNetn√hnSn√Ga-Luss

5、a√harlesDarin(gravit)(spreadfdisease)(Gaslas)(Evlutin)√Lrdelvin√LuisPasteur√endeleev√arlLinnaeus(lestteperature)(gers)(PeridiTablefeleents)(Naingplants)Step3ReadingFastreadingListentthetapeandanserthefllingquestin1astheexperientdneinune172suessful?es,theexperientassuessful2hatdidthisex

6、perientprve?ThisexperientprvedthatlightingandeletriiterethesaeReadthetextarefullagain,andgivethestudentsseexplanatinsGetthestudentsreadthetestandthendeideifthefllingstateentsaretrue(T)rfalse(F)1．In172sientistsalreadnehateletriitisT2．Franlinashelpedbafriendtdtheexperient3．Franlinadethei

7、tefsilbeauseetsildesntnduteletriit4．AndenserasusedintheexperienttstreeletriitT．Theetiedtthestringasputintthedrtstpheitefrflingaa6FranlinndutedtheiteexperientinsunndasReadhepassageandthenfinduttheainidea．Paragraph1IntrdutinfFranlin’sexperient．Paragraph2—3Thepressftheexperient．Paragrap