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1、Unit9waystoTravelPartIWarmingupA1.ThisnewsitemisaboutBoeing's18billionnewordersthisyearforitsnew777jetliner.2.Thisnewsitemisaboutpossiblemergersbetweenairlines.A2Tapescript:1.Boeing,theworld'sleadingcommercialairplanemaker,announcedithas18billiondollarsinnewordersthisyea
2、rforitsnew777jetliner.ThisfigureputsdemandfortheBoeingaircraftaheadofcomparablemodelsproducedbyrivalAirbusofEurope.2.BritishAirwaysandDutchcarrierKLMconfirmtheyareinactofmergertalks.SwissAirwonapprovalfortakingmajoritycontrolofBelgium'sSabenaAirlinesandtherewasanotherflu
3、rryoftake-overdiscussionsamongsomemajorAmericancarriers.TheycomeontheheelsofnumberoneUnitedAirlines'offertobuynumbersixU.S.Airwaystwoweeksago.Thenation'snumbertwo,AmericanAirlines,andthecountry'sthirdlargest,Delta,havebeenhavingwhataredescribedaspreliminarydiscussionsabo
4、utapossiblecombination.AmericanhadreportedlybeentalkingwithNorthwestaboutahookupaswell.ThetopthreeU.S.airlines,United,AmericanandDeltacurrentlycontrol56percentofU.S.airtraffic.Ifthemergersgothrough,they'dcontrol85percent.BMonorail1.Monorailsystemsrelyonaverysimpletechnol
5、ogy:rubber-tiredcarsridingonanarrowconcreteguide-way.2.Monorailsystemsarecapableofspeedsof65milesperhourandofferridequalitycomparabletoconventionalrailtransittechnologies.3.Monorailsystemsaresafeandmoreenvironmentallysensitivethananyotherelevatedtransittechnology.4.Andno
6、iseandneighborhooddisruptioncausedbymonorailconstructionaredramaticallylowerthanotherformsofmasstransit.Maglev1.Oneofthemostexitingrecentinnovationsinrailroadtechnologyismagneticlevitation,orMaglev,whichreliesontheprincipleofmagnetism--attractionandrepulsion.2.Thisnewtec
7、hnologywillresultintrainsthatarefaster,smoother,moreefficient,morecomfortable,andmoreenvironmentallysound.LightRail1.Lightrailtransitisanelectricrailwaysystemcharacterizedbyitsabilitytooperatesinglecarsormulti-cartrainsalongsharedorexclusiverights-of-wayatgroundlevel,ona
8、erialstructures,insubways,oroccasionallyinstreets.2.Itisabletoboardanddischargepassengersatstationplatf
