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1、Scientistsatwork教案1教学示例（二） ITeahingais: Talabutsieneandsientists learnhtgiveinstrutins Siilardialguepresentatinithnerdsandexpressinsusedithin IITeahingaids:tapererder,pitures,slides Step1Pre-reading 1TasSs:Dunthenaesfsefaussientists? hatarethefaus
2、fr? Tshsepituresandas:Dunthesientists?hatarethefausfr? AlbertEinstein爱因斯坦GalileGalilei伽利略arieurie居里夫人 StephenHaingharlesDarin达尔uanLngping袁隆平 史蒂芬•威廉姆•霍金 2Grupr letSsrinpairs,andnaesesientistshadeaniprtantdisveriesintheeighteentha
3、ndnineteenthenturies(slidesh) StepIIReading 1SiingletSsreadthepassagearefullandanserthequestin: hdidBenainFranlindthisexperientiththeite? (Heantedtsh/prvethatlightningandeletriitarethesaething) 2SippingletSsreadthepassageagain,andfinishthefllingexeri
4、ses:(slidesh)True(T)rfalse(F)1In172sientistsalreadnehateletriitis(T)2Franlinashelpedbafriendtdtheexperient(F)3Franlinadetheitefsilbeauseetsildesntnduteletriit(F)4Andenserasusedintheexperienttstreeletriit(T)Theetiedtthestringasputintthedrtstptheitefrflinga
5、a(F) 3ExtrativereadingletSsreadthepassagearefull,andanserthefllingthequestins: ahisitbettertaetheitefsilthanfpaper? (Asliiteilllastlngerinbadeatherthanapaperite) bDuthinFranlin’sexperientasdangerus?Explain (esFranlin’sexperientasverdangerusbeauseifse
6、thingentrngheuldbeilledbthelightning) 4letSsfinduttheesftheexerisesaftertheirreading(slidesh)Ai:Tshthatlightningandeletriitarethesaeaterials:Sedenstis,apieefsil,serpe,aversharppieefetal,asilribbn,ae,andenser,asallshed,athunderstrithlightningResults:Theel
7、etriitstredinthendenseranbeusedtdtherexperients,hihprvesthatlightningandeletriitarethesae 4listeningplathetapeandletSsfll,paingattentinttheintnatin StepIIIDisussin Tsas:Inrdertndutsieneexperients,sientistsustftenfindpratialslutinstvereprbles,aelargesal
8、enaturalphenenaanageableandthinabuttheirnsafet LetSsringrupanddisusshFranlinusedhisreativittverevariusprblesfrhisexperient 1eanntgandlfrlightning,sFranlinhastfindaataelightningethi:heattratedlightningusingaite 2A
