高一英语课件

Welcome!No.2MiddleSchool,Shijiazhuang

Duanjianru

Franklin’sFamousKiteExperimentlightningUnit16Pre-readingLookatthepictures.Whoarethey?Aretheyfamous?Whataretheyfamousfor?EdisonelectricbulbBellItwasAlexanderBellwhoinventedthetelephone.~isconsideredtohaveinventedthetelephone.ElbertEinsteintheoryofrelativityIsaacNewton(1643-1727)thelawofgravitationCharlesDarwin(1809-1882)Dead-leafmimickatydidtheoryofevolution

PeriodictableofelementsMendeleev(门捷列夫)(1834~1907)He’sinSanguo(三国)dynasty(朝代).Heworkedonmedicine.HewaskilledbyCaoCao(曹操).HeinventedtheanestheticnamedMafeisan(麻沸散)HuaTuo(华佗)radiumMadameCurieLaiteBrothersArethesediscoveriesimportant?LifewithoutelectricityBenjaminFranklin

1706-1790Doyouknow?HewasbornonJanuary17,inBostoninMasachusetts,andwasthetenthchildandyoungestsonofthefamily.Hisfatherwasacandlemaker.

Whenhewasyoung,hewasnotverygoodatmath.

Hewascuriousandlovedtolearnaboutnewthingsbuthehadonlylessthanthreeyearsofformaleducation.

Heinventedlightningrod.(避雷针)HehelpedsetupAmerica’sfirstcityhospital.

Healsohelpedtofoundanewnation.

HehelpedtowritetheDeclarationofIndependence.

Hewasasuccessfulbusinessman,aninventor,awriter,ascientistandaworld-famousstatesman.

★RegardedastheUSfoundingfather★AuthorofPoorRichard’sAlmanac,abookofsmartsayingsandfacts★

Librarian★

printer★

politician★

inventor

BenjaminFranklin

(1706-1790)Americanstatesman;inventor;writer;scientistanddiplomat.

HesignedtheDeclarationofIndependenceandtheConstitutionoftheUnitedStates哲学家政治家Benjamin'sGreatinventionLightningrodTheoriginaloneIfyouwouldnotbeforgotten,assoonasyouaredeadandrotten,eitherwritethingsworthreading,ordothingsworththewriting.Benjamin'sFamousKiteExperiment

Findthewordsthatfitthedescriptionsc______allow(heat,electricityetc)topassintoabattery.p______showthatsthistrueorcertainbymeansofargumentorevidence(证据)t______pull(sth)forciblyapartorawayortopiecesf______firmlyattachsthtosthortwothingstogethere______makesthclearoreasytounderstandonductroveearastenxplainTask1Readthetextquicklyandtrytogetthemainideaofeachparagraph.While-readingtomakeaspecialkitefortheexperiment?arethethreestepstodotheexperiment?todotheexperimentwithakite,akeyandacondenser?didFranklinsucceedindoingtheexperiment?didFranklindotheexperimentWhyFranklin’sfamouskiteexperimentPara1Para2Para3

Para4Para5Para6IntroductionHowHowWhatHowLookatthetextbookandlistentothetapecarefully.Task2

thingsweneed

akite

badweather(thunderstorm)

akey

acondenser

ashedahandkerchiefstringakeyasilkribbontwopiecesoflightwoodasharppieceofmetal(one

footormore)

Whatdoweneedtomakethekite?

1.buildtheframebymakingasmallcross

2.tiethecornerstothepointsofthecross

3.addatailtotheframe

4.tiealongstringtothecross

5.fixasharppieceofmetaltothetopofthelongerstick

6.fastenakeytotheendofthelongstring

7.tieasilkribbontothestringabovethekeyHowtomakeFranklin’skite?tailThingsneededFunctionsFranklin’sFamousKiteExperimentasilkkitetolastlongerinbadweathertodirectelectricitytowardsthecondenserakeybadweathertohavelightningacondensertocollectandstoreelectricity

ashedtokeephimselfandhistoolsdrysothathehimselfwouldnotbehitbythelightningThingsneededFunctionsFranklin’sFamousKiteExperimentwoodensticks

tobuildtheframeofthekitebymakingasmallcrosstocontrolthekitebytyingalongstringtothecrossastring

asharppieceofmetaltoattractelectricityasilkribbontoprotectyoufromtheelectricityConsolidationwoodensticksKite

experiment

SilkhandkerchiefsilkribbonkeyasharppieceofmetalstringkitecondensershedbadweatherPost-readingExercise1MultiplechoiceFranklinmadethekiteofsilkbecause______.wetsilkdoesnotconductelectricitysilkkiteflieshighsilkkitewilllastlongerinweatherwithrainandstrongwindssilkkiteischeaperC.silkkitewilllastlongerinweatherwithrainandstrongwinds2.Whichisnotstatedbutcanbeinferredfromthetext?Franklindidtheexperimentwiththekite.Franklin’sexperimentwithelectricitywasdangerous.Franklinfailedtheexperimentagain.Theexperimentwasconductedinbadweather.B.Franklin’sexperimentwithelectricitywasdangerous.3.Whichofthefollowingisinthecorrectorder?①Theexperimentprovesthatlightningandelectricityarethesame.②Thekiteflewhighintherainysky.③Hemadeasilkkite.④Verysharppieceofmetalwasfixed.⑤Akeywasfastenedtotheendofthestring.⑥Aribbonwastiedtothestring.④⑤⑥③②①B.③④⑤⑥②①C.④③⑤⑥①②D.③④⑤⑥①②Trueorfalse?1.In1752scientistsalreadyknewwhatelectricitywas.2.Franklinwashelpedbyafriendtodotheexperiment.3.Franklinmadethekiteofsilkbecausewetsilkdoesnotconductelectricity.4.Acondenserwasusedintheexperimenttostoreelectricity.5.Thekeytiedtothestringwasputintothedoortostopthekiteflyingaway.6.Theexperimentcanbedoneatanytime.TFFTFFThepicturesbelowshowhowFranklindidhisexperiment.Pickoutthecorrectones.Exercise3

Whichonesarecorrectaccordingtothetext?

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

above

thunderstorm

shed

standup

charged

electricshock

condenser

collectFillintheblanks.

1.conductanumberofexperiments2.attractlightning3.doanexperiment4.waitforbadweather5.ashedinthefield6.theexperimentwouldnotwork7.getcharged8.feelalightbutveryclearelectricshock9.collectandstoreagreatdealofelectricity10.provesth.11.tearsosoon12.buildtheframeofthekitebymakingasmallcrossoftwopiecesoflightwood13.reachthecornersofthehandkerchief14.tie…to15.add…to16.controlthekite17.fix…to18.fasten…to19.abovethekey20.protectyoufromtheelectricity21.appeartobecomingon22.undersomecover23.pulltheelectricityfromthecloudDiscussionDoyouthinkFranklin’sexperimentwasdangerous?ListthedifficultiesthatFranklinmetwhenhewasdoingthekiteexperimentHowdidFranklinsolvetheseproblems?DiscussionDoyouthinkFranklin’s

Experimentwasdangerous?Why?Dangerous!ItisdifficulttogoandlookforlightningAkitemadeofpaperwon’tlastlonginrainyweatherAsilkkitedoesn’tattractlightningHehadtocollectandstoretheelectricityHehadtomakesurethathewouldnotbehitbythelightningHehadtostopthekitefromflyingaway,withouttouchingthestringthatwouldbechargedwithelectricityHehadtodirecttheelectricitytowardsthecondenserHewaitedforbadweatherandattractedlightningbyusingakite.Hiskitewasmadeofsilk.Hefixedasharppieceofmetaltothetopofthelongerstick.Heusedacondenser.Heusedasmallshedinthefields.Hetiedasilkribbontothestringthathekeptdry.Hetiedametalkeytotheendofthestring.NameTimePeoplePurposeThingsneededArecordoftheexperimentKiteExperimentFranklinandhissonLightningandelectricityarethesame.akite,akey,somereallybadweatheranda