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12月英语四级听力练习2016年12月英语四级听力练习在如今的'英语四级考试中，听力部分已占到总分的35%，因此，听力部分十分关键，我们应该要抓住得分的机会。下面是yjbys网小编提供给大家关于语四级听力练习，希望对大家的备考有所帮助。HowWillDriverlessTechnologyChangeOurLives?无人驾驶技术将怎样改变我们的生活?Almosteveryday,wehearaboutanewdevelopmentintheworldofdriverlesstechnology.Buthowwillthistechnologychangeourliveswhencarsnolongerneedhumanstodrivethem?Majorautomakersarenowresearchingandtestingdriverlesscars.TechnologycompanieslikeApple,GoogleandUberarealsoworkingtobringdriverlesstechnologytomarket.JamesAndersonisaseniorbehavioralscientistattheRANDCorporation.Heisalsoanexpertondriverlesstransportation.Hesaidthefirststageofthetechnologyisalreadyhere.Thetechnologyallowscarstochangelanes,controlspeedandwarndriversofhazards.“Theideaisthatdriversfirstusethese,andthenbecomemoreconfidenttousethetechnologymore,”hesaid.“Buttheriskofthatisthatresearchsuggestspeopletendtooverrelyontheequipment,andmayormaynotbeabletojumpbackinandtakeoveronshortnotice.”SetbackfordriverlesstechnologyInMay,adriverwaskilledwhileusingthe“Autopilot”featureonaTeslacar.ItwasthefirstknownU.S.deathinvolvingacaroperatinginself-drivemode.OfficialssaidthecrashhappenedinFloridawhenatractor-trailerturnedinfrontoftheTeslaModelS.Investigatorssaiditappearedthecar’scamerasfailedtodifferentiatebetweenthelargewhitesideofthetractor-trailerandthebrightlylitsky.TheNationalHighwayTrafficSafetyAdministrationsaiditisinvestigatingtheaccident,aswellasthedesignandperformanceofTesla’sAutopilotsystem.ThedriverofthetrucktoldtheAssociatedPressthedriverofthecarwas“playingHarryPotterontheTVscreen”beforethecrash.TheFloridaHighwayPatrolconfirmeditfoundaportableDVDplayerinthecaraftertheaccident.Butitcouldnotconfirmwhetheramoviewasplayingatthetimeofthecrash.Tesla’sfounder,ElonMusk,expressedcondolencesfortheaccident.Teslasaiditwasthefirstknowndeathinmorethan200millionkilometersdrivenwithitsAutopilotsystem.Autopilotallowsthecartosteeritselfinalane,changelanes,andspeeduporslowdownbasedonnearbytraffic.Teslasaidthesystemisdesignedonlytoassistdrivers,whomustmanuall
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