Unit3Artandarchitecture-TheFirstPeriodI.BriefStatementsBasedontheUnitInthisunit,Sswillreadaboutartandarchitecture,learntoexpresspreferences,learnaboutthePastParticipleusedasObjectComplement,andlearntowriteareviewofapainting.Inthefirstperiod,Sswilllearntoexpresspreferencesbymakingdialogueswiththehelpofthegivenexpressions.Alsotheywilldosomelisteningpracticetoimprovetheirlisteningability.Inthesecondperiod,Sswillreadapassageaboutmodernarchitecture.Theywilllearnaboutsomefamousarchitectsandtheirworksaswellassomefamousbuildingsintheworld.Inthisperiod,Sswilllearnsomeusefulwordsandexpressions,too.Inthethirdperiodofthisunit,theusefulwordsarerevisedfirstandalsoSswilllearntouseanewsentencepattern:AistoBwhatCistoD.Sscanmasteritafterfinishingthepracticeprovidedinthispart.ThegrammaritemisthePastParticipleusedasObjectComplement.Thisisanimportantitem.TeachershouldgivesomeexplanationstohelpSsunderstanditandthenafterSsfinishtheexercisestheywillmasteritbetter.Teachermayprovidemorepracticeifnecessary.Inthefourthperiod,Sswilldosomereadingandwritingpracticetoimprovetheirintegratingskills.Afterthestudyofthisunit,Ssmayknowmoreaboutartandarchitectureandtheywillalsomakeprogressintheirlistening,speaking,readingandwritingabilities.II.TeachingGoals1.Talkaboutartandarchitecture.2.Learntoexpresspreferences.3.LearnaboutthePastParticiple(2):usedasObjectComplement.4.Writeareviewofapainting.III.TeachingTime:FourperiodsIV.BackgroundInformation1.TheGreatWallofChinaIn221B.C.theFirstEmperorstartedtobuildagreatwallrightacrossthenorthofhisempire.HewantedtokeepthetribesofHunsandTartarsoutsidehiscountry.TherewereearlierwallsbuiltinsomeplacesbydifferentkingsofChina,buttheFirstEmperor,nowthatheruledallChina,decidedtocompletethewall.HedecidedtomakeitrunrightacrossfromTibettothesea,adistanceofover1500miles.Ittooksevenyearstobuild.TheGreatWallranacrosswild,steep,mountainouscountry,overthemountainsanddownthevalleys.Northandwestofittherewereonlywildmountainsanddeserts,andsouthandeastthereweretherichYellowRiverplains.Itwasbuilthigherthanadouble-deckerbus.Inmostplacesitwaswideenoughforeightmentomarchsidebysidealongthetop.Itwasbuiltofstonesandclay.Therewerehugeblocksofstonesonthesides,andonthetopthereweremorestones.Carscouldtravelalongthetop.Abouteverytwohundredyardsthereweretall,strongtowerswheresoldierscouldkeepwatchfortheenemy,andwheretheycouldlightfirestosignaltoeachother.Therewerealwayssoldiersinsidethesetowers,winterandsummer,keepingguardagainstattacksfromtheHuns.Therewereafewwell-guardedgatewayswithhugewoodengates,strengthenedwithironnails.TheseconnectedthemainroadsofChinatootherroadsthroughthemountainsandacrossthedesert.用心爱心专心115号编辑TheGreatWallhasoftenbeenrebuiltthroughthecenturies,andmuchofitisstillstandingtoday.Visitorscanstillseeitrunninglikeasnakeacrossthecountryandcanstillwalkalongthetop.Muchofthetrafficwhichpassesthroughtheancientgatewayshasnotchangedmuch.Buttoday,aswellashorsesandcartstherearemotorcarsandtrucks.Tobuildsuchanenormouswallacrosssuchwildandmountainouscountrywithoutanymoderntractorsorotherheavymachineswasverydifficult.AlltheEmperor'sbuilderswerethousandsofmen,oftenprisonersofwar.Theyliftedtheearthinbucketsanddraggedthestonesinteamswithropesovertheirshoulders.Theyworkedinsuchwildanddistantplacesthatitwasdifficulttosupplythemwithenoughfoodortomakepropersheltersinwhichtheycouldsleep.Thousa...