Todayabout70countriesuseDaylightSavingTime(DST).DaylightSavingwasfirstintroducedduringWorldWarIinAustralia.DuringtheworldwarsDSTwasusedforthelatesummersbeginningJanuary1917and1942andthefullsummersbeginningSeptember1942and1943.
In1967Tasmaniaexperiencedadrought（干旱）.TheStateGovernmentintroducedonehourofdaylightsavingthatsummerasawayofsavingpowerandwater.TasmanianslikedtheideaofdaylightsavingandtheTasmanianGovernmenthasdeclareddaylightsavingeachsummersince1968.PersuadedbytheTasmanianGovernmentallstatesexcepttwopassedalawin1971foratestuseofdaylightsaving.In1972NewSouthWalesSouthAustraliaandVictoriajoinedTasmaniaforregulardaylightsavingbutQueenslanddidnotdosountil1989.
TasmaniaQueenslandandSouthAustraliahavehadirregularplansoftenchangingtheirdatesduetopoliticsorfestivals（节日）.Forexamplein1992Tasmaniaextended（延长）daylightsavingbyanextramonthwhileSouthAustraliabeganextendingdaylightsavingbytwoweeksfortheAdelaideFestival.SpecialdaylightsavingplansweremadeduringtheSydney2000OlympicGames.
ThedifferencesindaylightsavinginAustraliacontinuetocauseseriousproblemsintransportandmanyothersocialactivities.Italsoreducesthenumberofhoursintheworkingdaythatarecommontoallcentersinthecountry.Inparticulartimedifferencesalongtheeastcoastcausemajordifferencesespeciallyforthebroadcastersofnationalradioandtelevision.
小题1:DaylightSavingTimewasintroducedinTasmania_______________.A．tostopthedroughtin1967B．tosupportgovernmentofficialsC．topassaspeciallawinthestateD．tosavewaterandelectricity小题2:AccordingtothetextwhichstatewasthelasttouseDST?A．Victoria.B．Queensland.C．SouthAustralia.D．NewSouthWales.小题3:WhatcanwelearnaboutDSTinsomeAustralianstates?A．Itdoesn’thavefixeddates.B．Itisnotusedinfestivals.C．Itsplanwaschangedin2000.D．Itlastsfortwoweeks.