题目内容：
Questionsarebasedonthefollowingpassage. Speedingoffinastolencar,thethiefthinkshehasgotagreatcatch.Butheisinforanunwelcomesurprise.Thecarisfittedwitharemoteimmobiliser（锁止器）,andaradiosignalfromacontrolcentremilesawaywillensurethatoncethethiefswitchestheengineoff,hewillnotbeabletostartitagain.
Theideagoeslikethis.Acontrolboxfittedtothecarcontainsamini-cellphone,amicro-processorandmemory,andaGPS（全球定位系统）satellitepositioningreceiver.Ifthecarisstolen,acodedcellphonesignalwilltellthecontrolcentretoblockthevehicle’senginemanagementsystemandpreventtheenginebeingrestarted.
IntheUK,asetoftechnicalfixesisalreadymakinglifeharderforcarthieves.‘Thepatternofvehiclecrimehaschanged,’saysMartynRandall,asecurityexpert.Hesaysitwouldonlytakehimafewminutestoteachapersonhowtostealacar,usingabareminimumoftools.Butonlyifthecarismorethan10yearsold.
Moderncarsarefartoughertosteal,astheirenginemanagementcomputerwon’tallowthemtostartunlesstheyreceiveauniqueIDcodebeamedoutbytheignition（点火）key.IntheUK,technologieslikethishavehelpedachievea31%dropinvehicle-relatedcrimesince1997.
Butdeterminedcriminalsarestillmanagingtofindotherwaystostealcars,oftenbygettingboldoftheowner’skeys.Andkeytheftisresponsiblefor40%ofthetheftsofvehiclesfittedwithatrackingsystem.
Ifthecartravels100metreswithoutthedriverconfirmingtheirID,thesy
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