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ID:5571225
大小:31.50 KB
页数:6页
时间:2017-12-19
《scientists at work教案2》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、Scientistsatwork教案2教学示例(二) ITeahingais: Talabutsieneandsientists learnhtgiveinstrutins Siilardialguepresentatinithnerdsandexpressinsusedithin IITeahingaids:tapererder,pitures,slides Step1Pre-reading 1TasSs:Dunthenaesfsefaussientists? hatarethefausfr? Tshsepituresandas:Dunthesientists?hatare
2、thefausfr? 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,andnaesesientistshadeaniprtantdisveriesintheeighteenthandnineteenthenturies(slidesh) StepIIReading 1SiingletSsreadthepassagearefullandansertheq
3、uestin: hdidBenainFranlindthisexperientiththeite? (Heantedtsh/prvethatlightningandeletriitarethesaething) 2SippingletSsreadthepassageagain,andfinishthefllingexerises:(slidesh)True(T)rfalse(F)1In172sientistsalreadnehateletriitis(T)2Franlinashelpedbafriendtdtheexperient(F)3Franlinadetheitefsilbeaus
4、eetsildesntnduteletriit(F)4Andenserasusedintheexperienttstreeletriit(T)Theetiedtthestringasputintthedrtstptheitefrflingaa(F) 3ExtrativereadingletSsreadthepassagearefull,andanserthefllingthequestins: ahisitbettertaetheitefsilthanfpaper? (Asliiteilllastlngerinbadeatherthanapaperite) bDuthinFranlin
5、’sexperientasdangerus?Explain (esFranlin’sexperientasverdangerusbeauseifsethingentrngheuldbeilledbthelightning) 4letSsfinduttheesftheexerisesaftertheirreading(slidesh)Ai:Tshthatlightningandeletriitarethesaeaterials:Sedenstis,apieefsil,serpe,aversharppieefetal,asilribbn,ae,andenser,asallshed,athund
6、erstrithlightningResults:Theeletriitstredinthendenseranbeusedtdtherexperients,hihprvesthatlightningandeletriitarethesae 4listeningplathetapeandletSsfll,paingattentinttheintnatin StepIIIDisussin Tsas:Inrdertndutsieneexperients,sientistsustftenfindpratialslutinstvereprbles,aelargesalenaturalphenena
7、anageableandthinabuttheirnsafet LetSsringrupanddisusshFranlinusedhisreativittverevariusprblesfrhisexperient 1eanntgandlfrlightning,sFranlinhastfindaataelightningethi:heattratedlightningusingaite 2A
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