2. 考研
  3. Since Henry Ford turned it into a mass-market product a century ago, the car has delivered many benefits. It has【C1】______econom

Since Henry Ford turned it into a mass-market product a century ago, the car has delivered many benefits. It has【C1】______econom

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问题     Since Henry Ford turned it into a mass-market product a century ago, the car has delivered many benefits. It has【C1】______economic growth, increased social mobility and given people a lot of【C2】______. No wonder mankind has taken to the vehicle with such【C3】______ that there are now a billion automobiles on the world’s roads.
    【C4】______the car has also brought many【C5】______. It pollutes the air, creates crowding and kills people. An 【C6】______1.24m people die, and as many as 50m are hurt, in road accidents each year. Drivers and【C7】______waste around 90 billion hours in traffic jams each year.
    Fortunately, an【C8】______technology promises to make motoring more【C9】______less polluting and less【C10】______ to hold-ups. "Connected cars"—which may eventually evolve into driverless cars but for the foreseeable future will still have a human at the【C11】______—can communicate wirelessly with each other and with traffic-management systems, avoid 【C12】______ and other vehicles and find open parking spots.
    Some parts of the【C13】______are already in place. Many new cars are already being fitted with equipment that lets them maintain their distance and stay in a motorway lane automatically at a range of speeds, and【C14】______ a parking space and slot into it. Singapore has led the way with using variable tolls to【C15】______traffic flows during rush-hours; Britain is【C16】______ "smart motorways", whose speed limits vary constantly to achieve a similar effect Combined, these 【C17】______ could create a much more efficient system in which cars and their drivers are constantly【C18】______to hazards and routed around blockages, traffic always flows at the【C19】______speed and vehicles can travel closer together, yet with less risk of【C20】______.
【C18】
选项 A、accustomed
B、devoted
C、aware
D、alerted
答案D
解析 上文的more efficient system提示，当遇到危险状况时，使用此系统的车可以作出积极的反应。结合上文的“联网汽车可以避开行人和其他车辆”，可推断此系统能“提醒”车辆及其驾驶者注意到危险状况的出现，故选D项alerted“警觉的”。
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