高考英语 考前突破阅读理解能力 社会生活 波音开始为787梦幻客机更换电池素材.doc

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1、波音开始为787梦幻客机更换电池Boeinghasstartedreplacingbatteriesonsomeofitsgrounded787Dreamlinerfleet,movingastepclosertogettingtheplanesflyingagain.波音公司已开始替换一部分被停飞787梦幻客机的电池，使该机型重新起飞迈进了一步。Japan'sAllNipponAirwayssaidnewbatterieshadbeguntobeinstalledonitsplanes ItcomesafterUSaircraftregulatorsapprovedare

2、vampedbatterydesign. Problemswiththeplane'sbatteryhadresultedintheentirefleetofthe787sbeinggroundedanddeliveriesoftheaircraftbeinghalted.  Japan'sAllNipponAirwaysandJapanAirlinesareamongthefirstcarriersthatwillhavethebatteriesreplaced. AllNipponAirways(ANA)andJapanAirlines(JAL)arethetwobig

3、gestoperatorsofthe787Dreamliner. "WebegantheworkaswehavereceivedinstructionsfromBoeingfollowingtheFederalAviationAdministration(FAA)approval,"aspokesmanforJALsaid. "Butwehavenotdecidedonthetimingofthe787flightresumption." RyoseiNomura,aspokesmanforANA,saidthatthetechnicianshadstartedinstal

4、lingnewbatteriesonfiveofits17Dreamlineraircraft. Thecarriersstillhavetowaitforapprovalfromvariousregulatorsbeforetheycanstarttoflytheplanescommercially. Furtherapproval TheFAA,whichapprovedthebatterydesignlastweek,hassaidthatitwillissueafinaldirectiveontheDreamlinerthisweek. 2Otherinternat

5、ionalregulatorsarelikelytofollow.butitmaystillbeacoupleofweeksbeforeflightsresume. Theplaneisthefirstintheworldtousethelithium-ionbatteries,whicharelighter,holdmorepowerandrechargemorequickly. Butafterincidentsinwhichsomeofthebatteriesemittedsmoke,allofthe50Boeing787planesinserviceweregrou

6、ndedinmid-January. TheproblemssparkedabatteryfireonaparkedJAL787atBoston'sLoganInternationalAirportandanotherincidentinwhichbatterysmokeforcedanemergencylandingofanANA787inJapan. ThegroundinghascostBoeinganestimated$600m(£393m).  JapanesecarrierANAlostsome1.4bnyen($15m;£9.5m)inrevenuethrou

7、ghJanuary'sdisruptionalone.2