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　　C
　　LegendtellsusthatthecityofRomewasestablishedin152BC.It‘safact，however，thatby100AD，Romewasthecenterofavastempire.ItrangedfromSyriaintheeasttoSpaininthewest.ItstretchedfromBritaininthenorthtoAfricainthesouth.Allorpartof27oftoday’scountrieswereincludedintheRomanEmpire.Alloftheirpeoplewereruledbyonegovernment，thatofRome.Alleducatedcitizensspokethesamelanguage，Latin.Andoneoftheempire‘smanyoutpostswascalledLondinium.ThisunimportanttownwouldlaterbecomeLondon，England，andthecenterofanotherempire.
　　TheRomanEmpirecollapsedabout1，5000yearsago.Yetinsomeways，itisstillwithus.Takethelettersyouarereadingfoxexample.English，likemanyotherlanguages，usestheRomanalphabetwhilealsoborrowingmanyword.ThelawsofmanyEuropeancountriesarebasedonancientRomanlaws.RomanruinsarescatteredthroughoutEurope，
　　NorthAfrica，andtheMiddleEast.Insomeplaces，Romanroadsandwatercoursesarestillinuse.Tothisday，andEuropeaninNorthAfricaislikelytobecalled“Roumi”—Roman.EvenmodernplacenamesareofteninheritedfromancientRome.BothGreeceandGermanybearthenamesgiventhembytheRomansratherthanthenamesthattheirownpeoplefirstcalledthem.
　　（）59.ThemostnorthernpartoftheRomanEmpirewas_______.
　　A.Spain
　　B.Africa
　　C.Syria
　　D.Britain
　　（）60.Themainideaofparagraph2isthatRomancultureis________.
　　A.deadandburied
　　B.basedcompletelyonlanguage
　　C.stillpartofthepresent
　　D.unimportanttohistory
　　（）61.InthedaysoftheEmpire，theRomangovernmentwasprobably_______.
　　A.strong
　　B.divided
　　C.weak
　　D.poor
　　（）62.Whathappenedfirst？
　　A.Londiniumwasanoutpost
　　B.TheRomanEmpirefellapart.
　　C.ThecityofRomewasfounded.
　　D.Londonbecamethecenterofanempire.
　　D
　　Whenwaterisheateduntilitboils，bubblesofgasappearandrisethroughthehotliquid.Whenanelectriccurrentpassesthroughwaterinaprocesscalledelectrolysis（電解），bubblesofgasappearandrisethroughtheliquid.Superficially（表面地），thetwoeventsappearsame.
　　Ifthegasfromtheboilingwaterisexamined，itspropertiesarefoundtobethesameasthoseofthewater，Thus，ifthesteamiscooledtoroomtemperature，aliquidisformedwhichisindistinguishablefromtheoriginalwater.When，however，thegasfromtheelectrolysisequipmentiscooledtoroomtemperature，itremainsagasratherthanbecomingaliquid.Norwillit，atzerodegreescentigradeorbelow，turntosolid，aswillthegasfromboilingwater，Thesetwoprocesses，boilingandelectrolysis，haveclearlyresultedinproductswithquitedifferentproperties.
　　Inboiling，thegasdoesnotrepresentanewsubstance，butonlyadifferentstateoftheoriginalsubstance.Electrolysis，ontheotherhand，hasgeneratedaproductwhichisanewsubstance，orpossiblyamixtureofnewsubstances.Achangeinstateasrepresentedbygoingfromaliquidtoagaswithouttheproductionofnewsubstancesincalleda“physicalchange”。However，whenaprocesstakesplacethatproducesnewsubstances，thisiscalleda“chemicalchange”ora“chemicalreaction”。Inachemicalreaction，theinitialsubstancesarereplacedbyanewsetofsubstancesorproducts.
　　（）63.Whichofthefollowingisthebesttitleforthispassage？
　　A.Electrolysis
　　B.PhysicalandChemicalChanges
　　C.DifferentTypesofWater
　　D.WaterTemperatures
　　（）64.Atatemperatureslightlyabovezerodegreescentigrade，whichofthefollowingistrueofgasproducedbyelectrolysis？
　　A.Itdoesnotbecomeliquid.
　　B.Itcannotbedistinguishedfromwater.
　　C.Itbecomesasolid.
　　D.Itexpandsgreatly.
　　（）65.Thepassageisdevelopedinthewayof________.
　　A.argumentation
　　B.narration
　　C.comparison
　　D.listingexamples