高一英语人教修订版下Unit 16 scientists at work课件.ppt

,Freetalk,NEVERGIVEUPAmandaPierceIknowyouregoingtomakeit.Itmaytaketimeandhardwork.Youmaybecomefrustrated,Andattimesyoullfeellikegivingup.Sometimesyoumayevenwonderifitsreallyworthit.ButIhaveconfidenceinyou,AndIknowyoullmakeit,ifyoutry.,Apoem,Pre-reading,Findthewordsthatfitthedescriptions,c_leadorguide(sb./sth.)c_amountofelectricityputintoabatteryorcontainedinasubstancep_showthatsthistrueorcertainbymeansofargumentorevidence(证据)t_pull(sth)forciblyapartorawayortopiecesf_firmlyattachsthtosthortwothingstogethere_makesthclearoreasytounderstanda_becomevisible,onduct,harge,rove,ear,asten,xplain,ppear,Successbelongstoyou!,ItsperfectlyOKtobeangrysometimes.Infact,itsimportanttogetangrysometimes.However,_,otherwiseyouwillbelikeapotofboilingwaterwiththelidleftonDontlosecontrolifyougetangry.,Unit,16,Scientistsatwork,Doyouknowthenamesofsomefamousscientists?Whataretheyfamousfor?,Pleasetellmewhothesescientistsareaccordingtomydescription.,Darwin,Curie,Newton,BenjaminFranklin,Franklinsfamouskiteexperiment,Franklinsfamouskiteexperiment,Whatwillthepassagetalkabout?,Gothroughthepassageandfindouthowmanypartswillthepassagebedividedinto?,Twoparts:1.WhyandHowdidFranklindohisexperiment2.Howcanyoumakeasuccessfulkiteexperiment?,Gothroughthetextquicklyandtrytogetthemainideaofeachparagraph.,tomakeaspecialkitefortheexperiment?,shouldbedonetogetreadyfortheexperiment?,todotheexperimentwithakite,akeyandacondenser?,didFranklinsucceedindoingtheexperiment?,didFranklindotheexperiment,Why,Franklinsfamouskiteexperiment,Para1Para2Para3Para4Para5Para6,Introduction,How,How,What,How,Processoftheexperiment,Thetipsofdoingtheexperiment,Canyoutellmethemeaningofthewordsaccordingtothetext?,1.conductanumberofexperiments(para1)2.conducttheelectricity(para6)3.attractlightening(para2)4.getcharged(para3)5.willnottearsosoon(para4.),6.condenser(para3,lastpara),Howtoguessthemeaningofthewords?,1.accordingtothecommonknowledge2.fromthecontext,Scanning,Readthepassagequicklyandsilently,andthenanswerthefollowingquestions:1.WhydidBenjaminFranklindothisexperimentwiththekite?2.Whyisitbettertomakethekiteofsilkthanofpaper?3.DoyouthinkFranklinsexperimentwasdangerous?Why?,WhydidBenjaminFranklindothisexperimentwiththekite?2.Whyisitbettertomakethekiteofsilkthanofpaper?3.DoyouthinkFranklinsexperimentwasdangerous?why,Hewantedtoprovethatlightningandelectricityarethesamething.,Asilkkitelastlongerinbadweatherthanapaperkite.,Yes.Franklinsexperimentwasverydangerousbecauseifsomethingwentwronghecouldbekilledbythelightening.,Arecordoftheexperiment,KiteExperiment,Franklinandhisson,Lightningandelectricityarethesame.,akite,akey,somereallybadweatherandacondenser,InJune1752,Readthetextagainandquicklyfindtheanswerstothefollowingquestions!,Whatdoyouneedtodotheexperiment?,Skimming,thingsweneed,akite,badweather(thunderstorm),akey,acondenser,ashed,Whatdoyouneedtodotheexperiment?,Whatdoweneedtomakethekite?,HowtomakeFranklinskite?Findouttheverbs.,Makeasmallcross,buildtheframe,tiethecornerstothepointsofthecross,addatailtotheframe,tiealongstringtothecross.,Fixasharppieceofmetaltothetopofthelongerstickofthecross.FastenakeytotheendofthelongstringTieasilkribbontothestring,justabovethekey.,Instruction,Asmallcrossoftwopiecesoflightwood.Tiethecornersofahandkerchieftothepointsofthecross.Addatailtotheframe.Tiealongstringtothecross.Fixasharppieceofmetaltothetopofthelongerstickofthecross.Fastenakeytotheendofthelongstring.Tieasilkribbontothestring.,Workinpairsanddrawapictureofthekiteandshowhowwedothekiteexperimentanddescribeyourpicture.,sharppieceofmetal,Onefootormore,Longstring,“cross”,tail,Silkribbon,ahandkerchief,strings,akey,asilkribbon,twopiecesoflightwood,asharppieceofmetal,Whatdoweneedtomakethekiteintheexperiment?,1.buildtheframebymakingasmallcross,2.tiethecornerstothepointsofthecross,3.addatailtotheframe,4.tiealongstringtothecross,5.fixasharppieceofmetaltothetopofthelongerstick,6.fastenakeytotheendofthelongstring,7.tieasilkribbontothestringabovethekey,HowtomakeFranklinskite?,Readthepassagealoudandthendosomecomprehensionexercises!,True(T)orFalse(F)1.In1752scientistsalreadyknewwhatelectricityis.()2.Franklinwashelpedbyafriendtodotheexperiment.()3.Franklinmadethekiteofsilkbecausewetsilkdoesnotconductelectricity.()4.Acondenserwasusedintheexperimenttostoreelectricity.()5.Thekeytiedtothestringwasputintothedoortostopthekitefromflyingaway.(),T,F,F,T,F,Exercise1,Multiplechoice,HowdidFranklinprovethatlighteningandelectricityarethesame?Byflyingakitewithhissoninthefields.Bychargingthestringofthekite.Byusingakitetoattractlighteningandacondensertostoreelectricity.Bytakingacondensertoashedinathunderstorm.,Byusingakitetoattractlighteningandacondensertostoreelectricity.,2.Whichisnotstatedbutcanbeinferredfromthetext?Franklindidtheexperimentwiththekite.Franklinsexperimentwithelectricitywasdangerous.Franklinfailedtheexperimentagain.Theexperimentwasconductedinbadweather.,B.Franklinsexperimentwithelectricitywasdangerous.,3.Whichofthefollowingisinthecorrectorder?Theexperimentprovesthatlightningandelectricityarethesame.Thekiteflewhighintherainysky.Hemadeasilkkite.Verysharppieceofmetalwasfixed.Akeywasfastenedtotheendofthestring.Aribbonwastiedtothestring.,B.C.D.,BenjaminFranklinwasafamousAmericanscientist.InJune1752,hedidakiteexperimentto_thatlightningandelectricitywerethesame.Hemadeakite,whichcould_lightning.Thekitewasmadeof_sothatitwouldnot_toosoon.He_averysharppieceofmetalandthen_akeytothe_ofthelongstringandfinallyhe_asilk_tothestring,just_thekey.Whena_appeared,hewenttoa_inthefieldandflewthekitetothesky.Soonhesawthehairsonthestring_becausethestringgot_.Hebroughthisfingertothestringandfeltalightbutclear_.Withthehelpofakeyanda_,hewasableto_agreatdealofelectricity.,prove,attract,silk,tear,fixed,fastened,end,tied,ribbon,