Unit 3 Developing Ideas学案 高中英语外研版（2019）必修第三册

Unit3TheworldofscienceDevelopingideas【学习目标】1.Understandthemainideaofthepassageandgetsomedetailedinformation.2.Getthefeaturesofargumentationandfindoutthestructureofthepassage.3.Havetheabilityofwritingareportoftheexperimentaccordingtotheinstructionsfortheexperimentgiven.预习案【学习过程】Step1:自主学习TogetsomeinformationaboutBenjaminFranklinontheInternet探究案【合作探究】Step1Warmingup(6minutes)HomeworkcheckingFillintheblankswiththegivenwordsintheproperform.1.Thebridge___________(build)lastyear.

2.Greatchanges____________(take)placeinmyhometown.3.Sofar,manyvillages_______________(visit).4.Theparty_______________(plan)sincetheNewYear.5.Withthehelpofhightechnology,moreandmorenewsubstances________________(find)inthepastfewyears.6．Papermoney_______(use)foroverathousandyears.7．Greatchangeshavetakenplaceinmyhometownandalotoffactories_____________(set)up.8．Thisbook_______(translate)intomanylanguagesuptonow.9．Thefirehasgottothefifthfloor.Iwonderwhetherallthepeople________(save)．10．—Wewanttositatthetablenearthewindow.—I'msorry，butit_______(take)already.Step2Backgroundinformation(4minutes)BenjaminFranklin(1706–1790)wasoneoftheFoundingFathersoftheUnitedStatesandhelpeddrafttheDeclarationofIndependence.Apartfrombeingasuccessfulstatesman,hewasalsowellknownasaleadingAmericanauthor,printerandpublisher,successfuldiplomat,creativescientistandinventor.FillintheformHighlightsinthelifeofBenjaminFranklin1._______________________________________2._______________________________________3.______________________________________4._____________________________________5._____________________________________6._____________________________________7.____________________________________8.____________________________________Step3FastreadingActivity2(5minutes)Readthepassageandfindtheanswertothefollowingquestions1.whatFranklin’sexperimentaimedtoprove.2.WhatdoesthenewstudysayaboutthestoryofFranklin’sexperiment?3.WhydoestheauthormentionthestoryabouttheapplefallingonNewton’sheadinthetext?Activity3(5minutes)1.Numberthestatementstoshowhowpeople’sattitudestowardsFranklin’sexperimenthavechanged.a).Franklin’sspiritofscientificexplorationisstillconsideredaninspiration._________b).PeopleareamazedatandinspiredbyFranklin’sexperiment.___________c).ScientistsquestionwhatreallyhappenedinFranklin’sexperiment._________Step4carefulreading(5minutes)2.Readthetextagainandmatchthemainideaswiththeparagraph(s).1．Paragraphs1A.Theeffectoftheexperiment.2．Paragraphs2B.TheintroductiontoFranklin’sfamousexperiment.3．Paragraphs3 C.ArethestoriesofFranklin’sandNewton’strue?4．Paragraphs4－6 D.Howtheexperimentiscarriedout.Step5Thinkandshare(8minutes)PassageStructureFranklin'sexperiment(Paragraph1&2) Theeffect(Paragraph3)Criticalthinking(ArethestoriesofFranklin’sandNewton’strue?)RaiseaquestionAnalysethequestionThesolutionAndtryansweringthetwoquestions:1.Howdoyouunderstandthestatement“...weshouldnotalwaysbelieveeverythingwereadorhear‒evenifitisagreatstory”?2.Whatqualitiesdoyouthinkagreatscientistshouldhave?Step6PostreadingActivity4Workingroups.(12minutes)Havethestudentsgiveatalkabouttheirunderstandingofthesaying“Seeingisbelieving.”ThestudentscompletetheexercisestepbystepundertheguidanceofActivity4.a)Yourunderstanding:b)Supportingdetailsc)Fromthepassagewecanlearn...Step7HomeworkBenjaminFranklinwasoneoftheFoundingFathersoftheUnitedStates.Apart1._____beingasuccessfulstatements,hewasalsoa2._______(create)scientistaninventor.BenjaminFranklin3.________(fly)akiteduringastormin1752.heraisedthekitewithapieceofsting4.______(tire)toit.Ametalkeywasattachedtithesting.Aflashoflightinghitthekite,andelectricitywasconductedthroughthestingtothekey.Franklinthentouchedthekeyandgot5.________electricshock.Generationsofschoolchildrenhavebeenamazedbyhis6.___________(brave)andscientificapproachto7.______(look)forthetruth.However,newresearchsuggeststhatthestorymaybefictioninsteadofafact.Morethanonescientisthasquestioned8._______reallyhappened.TheyallagreedthatifFranklinhad9.___________(actual)touchedthekey,hewouldcertainlyhavediedfromelectricshock.Inscience,factsshould10.________(prove)byexperimentsandresearch,andweshouldnotalwaysbelieveeverythingwereadorhear--evenifitisagreatstory.【参考答案】Step1homeworkcheckingThekey:1.wasbuilt2.havetaken3.havebeenvisited4.hasbeenplanned5.havebeenfound.6.hasbeenused7.havebeenset8.hasbeentranslated9.havebeensaved10.hasbeentakenStep2BackgroundinformationThekey:1.OneoftheFoundingFathersoftheUS2.Asuccessfulstatesman3.AleadingAmericanauthor4.Aprinter5.Apublisher6.Asuccessfuldiplomat7.Acreativescientist8AninventorStep3FastreadingActivity2Thekey:1.Franklin'sexperimentaimedtoprovethatlightningwasaformofelectricity.2.Hisexperimentaimedtotestiflightningwasreallyproducedbyelectricityorsomethingelse.3.Newresearchsuggeststhatthestorymaybefictioninsteadoffact.Activity3Thekey:a)3b)1c)2Step4carefulreadingThekey:1．Paragraphs1A.Theeffectoftheexperiment.2．Paragraphs2B.TheintroductiontoFranklin’sfamousexperiment.3．Paragraphs3 C.ArethestoriesofFranklin’sandNewton’strue?4．Paragraphs4－6 D.Howtheexperimentiscarriedout.Step5ThinkandshareThekey:1.Ithinkthestatementisright.Froma

scientific

standpoint,peopleshouldstick

to

thefactsandthefactsshouldbeprovedbyexperimentsandresearch.Agoodstoryisfictionwhichisoftenmoreinterestingthanthetruth.2.Asagreatscientist,heorsheshouldhavemorethanonegoodquality,suchasbeingsmart,honest,objective,persistent,curious,imaginative.Step6PostreadingThekey:a)AstheoldChinesesayinggoes,“Whatyouhearmaybefalse,butwhat youseeistrue.”Weofteneasilybelieveinwhatweseeorhearwithdoubt,butasamatteroffact,itisnotalwayssoconvincing.b)1.NewresearchsuggeststhatthestoryofFranklin’sexperimentmaybefictioninsteadoffact.2.S