Unit2Backtothepast(Welcome—Reading)ⅠPre-readingFamoussaying(P29)Lookingintoamirror,wecanseetrueimagesofourown;withourknowledgeofthepast,thepresentcanbebetterknown.—ChenShou

明鏡所以照形，古事所以知今。

——陳壽陳壽，三國(guó)及西晉時(shí)期史學(xué)家。該句出自他的《三國(guó)志.吳書.吳主五子傳》，表明研究歷史是為了洞察當(dāng)今的形勢(shì)。Atimemachine:TimeTravelLifeonaspacestation

Peoplehavebeendreamingabouttimetravelformanyyears.Readtheexcerptandcompletethetable.Thenameofthebook(1)Theauthor(2)Themaincharacter(3)Themaincharacter’sview(4)Thewaytosupporthisidea(5)Theplotstobecontinued(6)

WelcometotheunitTheTimeMachineH.G.WellsTheTimeTravellerThereisafourthdimension—Time.HeconductedanexperimentwithamodeloftheTimeMachine.Hemovedintimeandgotenoughprooftomakethegroupconvinced.Discussion1.WhatdoestheTimeTravellerthinkofthefourthdimension?

2.Ifyouhadatimemachine,whichdynastywouldyougobackto?Why?

3.Whichhistoricalfigurewouldyouliketomeet?Whatwouldyousaytohim/her?

Discussion1.WhatdoestheTimeTravellerthinkofthefourthdimension?

TheTimeTravellerthinksthatTimeisthesameastheotherthreedimensions.Hesaid,"Length,BreadthandThicknessdonotpass.Wemoveaboutinthem.WemoveinTimethesamewaythatwemoveintheotherthreedimensions."HebelievesthatbecauseTimeisliketheotherthreedimensions,wecantravelthroughTime.Discussion2.Ifyouhadatimemachine,whichdynastywouldyougobackto?Why?

IfIhadatimemachine,IwouldliketogobacktotheTangDynasty.IhavealwaysbeenfascinatedbyChang’an,soIwishIcouldtraveltotheancientcapitalandseewhatlifewaslikebackthen.

3.Whichhistoricalfigurewouldyouliketomeet?Whatwouldyousaytohim/her?

歷史人物IwouldliketomeetChristopherColumbus.Pleasetrytothinkabouthisequivalent(對(duì)等的人或事)inancientChina.ZhengHeExplorershaveplayedanimportantroleinworldhistory.TheirdiscoverieshaveimprovedourknowledgeoftheEarthandhavealsochangedthewayweunderstandourplaceintheworld.SailingtheoceansWhatdangersdidexplorersfaceinthepast?Inthepast,beforemoderntechnologieswereinvented,explorersmainlytravelledbyshipandonfoot,ortheyusedanimalstogetaround.TheydidnothaveGPSandmedicaltreatmentsformanydiseaseswerenotyetdiscovered.Becauseofthelackoftheseinventionsanddiscoveries,journeysofexplorationwouldtakealongtimeandconditionswereveryunhealthyandunsafe.Manyexplorerswouldgetextremelyillanddiefromdiseases.Theywouldalsogetlostindangerousenvironments,likeatseaorinthejungles.Pre-readingBeforeyoureadthearticles,thinkaboutthefollowingquestions:ⅡFastreading

ZhengHePara(s)_____:

IntroductionofhisfisrtvoyagePara(s)_____:MoredetailsabouthisvoyagesPara(s)_____:Significanceofhisvoyages

Whatisthestructureofthetwo

passages?While-reading123-4

ChristopherColumbusPara(s)___:Introductionof_________________Para(s)___:Detailsabouthis_______________Para(s)___:_____________ofhisvoyages

Whatisthestructureofthetwo

passages?While-reading123ChristopherColumbusfirstvoyageSignificanceIntensivereadingⅢReadthearticlesagainandcompletethetable(P32A1)Inthesummerof1405TaicangOver200ships28,000Morethan30countriesandregionsSevenPara3-4On3August1492SpainThreeships90CaribbeanThreePara3While-readingSignificanceZhengHe’sexplorationChristopherColumbus’sexplorationZhengHe’svoyageshelpeddevelopandstrengthenharmoniousrelationswiththecountriesandregions,exposingforeignpeopletoChineseculture,andallowingtheChinesetobetterunderstandoverseaslands.Columbus’sdiscoveryinspiredexplorerstoexploreanddiscovermorevastareasoftheworld.HisvoyagesopenedanewchapteroftheAgeofExploration,aperiodwhichwitnessedmanyimportantgeographicalfindingsandallowedforaninternationalexchangeofideasandcultures.P32A21.WhywereZhengHe’sshipsloadedwithchina,silk,teaandothertreasures?2.WhathelpedprovethattherecordsofZhengHe’svoyageswerenotlegends?3.WhatchallengesdidColumbusandhiscrewencounterduringthejourneyin1492?4.WhydidColumbuscallnativeIndians?P32A21.WhywereZhengHe’sshipsloadedwithchina,silk,teaandothertreasures?Becausethesearegiftstoforeignrulers.2.WhathelpedprovethattherecordsofZhengHe’svoyageswerenotlegends?AnenormousshipyardwasdiscoveredinNanjing,wherethefleethadbeenbuilt.P32A23.WhatchallengesdidColumbusandhiscrewencounterduringthejourneyin1492?Ittooklongerthanexpected,theyalmostranoutoffoodandwaterenteredoneoftheships.4.WhydidColumbuscallnativeIndians?BecausehewasconvincedthathewasintheEastIndies.Whatarethe