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1、Unit9Wheels阅读理解ARecentmonthshaveseenarevivalofthehumble(普通的)bikeacrossChina,withanincreasingnumberofpeoplechoosingpedaling(骑车)insteadofdrivingtoschool,toworkplacesortodosightseeing.Theintroductionofbike-sharingsystems,servicesinwhichbicyclesaremadeavailableforshar
2、edusetoindividualswhodonotownthemandpioneeredbystart-upslikeOfoandMobike,hasbroughtthetrendtoanewlevel.WashingtonD.C.hasoneofthebiggestbikesharingsystemsintheUSwith3,700bikesand440stations.TheUK,FranceandGermanyallhavegrowingprograms.However,China,sofar,outdoes(超过
3、)themallbyoperatingthreeoutoffouroftheworld’sshardbikes.Peoplecanunlocktheshardbikesbysimplyusingtheirsmartphone.ThebikesareequippedwithGPSandusersofChina’sversionscanleavebikesanywhereinpublicforthenextuser.They’repopularamongmanyChinesepeopleastheyprovideaneffec
4、tivesolutiontothe“lastmile”problem,whichreferstothefinallegofaperson’sjourney.However,theChineseprogramshavealsoledtoproblemssuchasillegalparking,vandalism(故意破坏)andtheft.Infact,theseproblemsarealsosharedbybike-sharingprogramsabroad.Launchedin2007,Véilbisalarge-sca
5、lepublicbikesharingsysteminParis.Atitsearlystageofoperation,italsosufferedfromproblemsofvandalismortheft.ByOct2009,alargenumberofVélib’sinitialbikeshadtobereplacedduetovandalismortheft,accordingtoTheNewYorkTimes.Todealwiththeseproblems,thepanycameupwiththeideaofen
6、couragingpeopletoreturnthebikestostationsbyrewardingfreetimefortheirnextrides.Now,Chineseserviceoperatorsarealsotryingtoaddresstheseproblems.Forexample,Mobikesetsa100-pointcreditscoreforeachuser,withpointstakeninthecaseofbadbehavior.Onceascoredropsbelow80,bikerent
7、alisincreasedto100yuanper30minutes,upfrom0.5-1yuan.1.Whatcanwelearnaboutbikesharingsystems?A.Theyofferfreebikerides.B.Theyarerunningperfectly.C.Chinaoperatesthebiggestsystem.D.Francewasthefirsttolaunchthesystem.2.Asameansoftransportation,bike-sharingcanbebestdescr
8、ibedas_______.A.promisingbutexpensive.B.convenientandeco-friendly.C.eco-friendlybutineffective.D.troublesomeandmeaningless.3.Whatcanbeasuitabletitlefort
