Unit23AfamousclockLesson45（课件）-新概念英语青少版（2008）5A

Unit23AfamousclockLesson45Warm-up❓❓

💬What’sthemostfamousclockinyourcity/country?Pre-readingHasBigBenevergonewrong?(Readandfindout!)WhenyouvisitLondon,oneofthefirstthingsyouwillseeisBigBen,thefamousclockwhichcanbeheardallovertheworldontheBBC.ReadingComprehensionIftheHousesofParliamenthadnotbeenburneddownin1834,thegreatclockwouldneverhavebeenerected.BigBentakesitsnamefromSirBenjaminHall,whowasresponsibleforthemakingoftheclockwhenthenewHousesofParliamentwerebeingbuilt.Itisnotonlyofimmensesize,butisextremelyaccurateaswell.OfficialsfromGreenwichObservatoryhavetheclockcheckedtwiceaday.OntheBBC,youcanheartheclockwhenitisactuallystriking,becausemicrophonesareconnectedtotheclocktower.BigBenhasrarelygonewrong.Once,however,itfailedtogivethecorrecttime.Apainterwhohadbeenworkingonthetowerhungapotofpaintononeofthehandsandsloweditdown!Answerquestionsaboutthetext.Example:What'sthenameofthefamousclockinLondon?BigBen.1Isitoneofthefirstthingsyou'llseewhenyouvisitLondon?2Itcanbeheardallovertheworld,can'tit?3Whichradiostationcanitbeheardon?4WhatistheBBC?5WhathappenedtotheHousesofParliamentin1834?GuidedConversationGuidedConversationAnswerquestionsaboutthetext.Example:Whodidyousee?NigelDykes.6WasBigBenburnedinthefire,too?7WhowasresponsibleformakingBigBen?8BigBeniscalledafterhim,isn'tit?9Howbigistheclock?10Howaccurateisit?11Howoftenisitchecked?Askquestionsaboutthetext.Example:BigBenisafamousclock.(What?)i)IsBigBenafamousclock?ii)WhatisBigBen?1It'sinLondon.(Where?)2It'soneofthefirstthingsavisitorsees.(What?)3Itcanbeheardallovertheworld.(Where?)(Why?)(What?)4YoucanhearitontheBBC.(How?)5It'scalledafterSirBenjaminHall.(Who?)GuidedConversation6Hewasresponsibleformakingtheclock.(What?)(Who?)7TheHousesofParliamentwereburntdownin1834.(What?)(When?)8TheclockwasmadewhenthenewHousesofParliamentwerebeingbuilt.(When?)GuidedConversationStoryRetellingWriteacompletesentenceinanswertoeachquestion,tomakeaparagraphofnotmorethan75words.1WhenweretheHousesofParliamentburntdown?Whowasmaderesponsiblefortheconstructionofahugeclock?DiditbecomeknownasBigBenornot?(After...which...)2Whyisitveryaccuratedespiteitsimmensesize?(for)3Hasthisclockoftengonewrong,orhasitrarelygonewrong?WhycanitbeheardontheBBCwhenitisstriking?(Thisclockwhich..because.)Guidedsummary.Considerthesetwoviews.What'syouropinion?1Tellusaboutapublicclockthatyouknow.Whereisit,howoldisit,anddoesithaveaname?2Whydidweputclocksonourpublicbuildingsinthepast?Doweputclocksonournewpublicbuildings?Why?Whynot?3Arepublicclocksimportantinourcitiesthesedays?Why?Whynot?4Beforewehadmodernclocks,peoplehadotherwaysofmeasuringtime.Canyoutellusaboutanyofthemethodstheyused?Talkaboutyou.TalkAboutYouDiscussionTopic:"Whydomodernbuildingsrarelyhavebigclocks?"MindMap:⬇️Pastreason(indicatingtime)→

⬇️Currentreason(popularizationofmobilephones)RealityConnectionEvolut