在线作业：
　　Car Thieves Could Be Stopped Remotely
　　Speeding off in a stolen car, the thief thinks he has got a great catch．But he is in a nasty surprise．The car is fitted with a remote immobilizer（使车辆不能调动的装置）, and a radio signal from a control center miles away will ensure that once the thief switches the engine   _1_  ，he will not be able to start it again．

　　For now, such devices  _2_  only available for fleets of trucks and specialist vehicles used on construction sites．But remote immobilization technology could soon start to trickle down to ordinary cars．and    _3_    be available to ordinary cars in the UK  _4_  two months．

　　The idea goes like this．A control box fitted to the car incorporates   _5_    miniature cellphone，a microprocessor and memory, and a GPS satellite positioning receiver．  _6_  the  car is stolen, a coded cellphone signal will tell the unit to block the vehicle’s engine management system and prevent the engine    _7_    restarted．
　　There are even plans for immobilizers    _8_    shut down vehicles on the move，though there are fears over the safety implications of such a system．

　　In the UK．an array of technical fixes is already making  _9_  harder for car thieves．“The pattern of vehicles crime has changed，”says Martyn Randall of Thatcham．a security research organization based in Berkshire that is funded in part    _10_   the motor insurance  industry．

　　He says it would only take him a few minutes to    _11_    a novice how to steal a car, using a bare minimum of tools．But only if the cal-is more than  10 years old．
　　Modern cars are a far tougher proposition，as their engine management computer will not  _12_    them to start unless they receive a unique ID code beamed out by the ignition key．In the UK，technologies like this    _13_    achieve a 31 per cent drop in vehicle-related crime since 1997．

　　But determined criminals ore still managing to find other ways to steal cars．Often by getting hold of the owner’s keys in a burglary．In 2000,12 per cent of vehicles stolen in the UK were taken using the owner’s keys double the previous year’s figure．

　　Remote-controlled immobilization system would    _14_    a major new obstacle in the criminal’s way by making such thefts pointless．A group that includes Thatcham，the police，insurance companies and security technology firms have developed standards for a system that  could go on the market sooner than the   _15_   expects．

　　词汇：
　　immobilizer／n．使车辆不能调动的装置
　　trickle／v．慢慢移动
　　cellphone／n．移动电话，手机
　　immobilization／n．使车辆不能调动 
　　ignition／n．点火
　　burglary／n．夜窃行为；盗窃

　　1．  A) off     B)on     C)at      D)of
　　2．  A) is     B)was     C)were     D)are
　　3．  A) can     B)have to    C)need to    D)should
　　4．  A) after    B)for      C)in      D)at
　　5．  A) the     B)／     C)a       D)an
　　6．  A) With    B)If      C)But     D)And
　　7．  A) helping  B)being     C)get   D)be
　　8．  A) whose   B)who     C)that     D)when
　　9．  A) life     B)Cars     C)warning   D)problem
　　10． A) about    B)to      C)by     D)on
　　11． A) use     B)inform     C)ask     D)teach
　　12． A) let     B)allow     C)make     D)give
　　13． A) have helped     B)helped     C)had helped   D)was helped
　　14． A) speak      B)have     C)link    D)put
　　15． A) lawyer      B)doctor     C)customer     D)specialist

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