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  3. It looks rather like a futuristic stretch limousine, but its actual function is rather more populist: the Superbus is a novel pu

It looks rather like a futuristic stretch limousine, but its actual function is rather more populist: the Superbus is a novel pu

admin2014-06-13  1
问题     It looks rather like a futuristic stretch limousine, but its actual function is rather more populist: the Superbus is a novel public-transport system being developed in the Netherlands by the Delft University of Technology. It is an electric bus designed to be able to switch seamlessly between ordinary roads and dedicated "supertracks", on which it can reach speeds of 250kph (155mph). It could thus present an alternative to much more expensive magnetic-levitation trains.
    Though it is as wide and long as a standard city bus, the Superbus is only 1. 7 metres high. Joris Melkert, the project’s manager, explains that the designers managed to keep the Superbus this small by doing away with the central aisle usually found in today’s buses, a vestigial design feature that allows passengers to stand upright, but also gives conventional buses the aerodynamic profile of a brick.
    The low-riding Superbus, in contrast, has a separate door for each of its 30-odd seats. The low ceiling and the use of lightweight materials make for a far more streamlined vehicle, which in turn requires only a modest electric motor: though engineers have not yet decided whether the Superbus will be powered by fuel cells or batteries, they estimate that it will be able to accelerate from rest to 100kph in a leisurely 36 seconds.
    The individual doors also allow for rapid loading and unloading of passengers, which will need to be fast if the Superbus is to live up to its promised door-to-door mission: instead of making predetermined stops, the vehicle will pick up and drop off passengers based on their text-messaged requests. This kind of flexibility is a central tenet of the project; the estimated three-year lifespan of a Superbus will also allow the latest technologies to be phased in quickly as they become available.
    To start with, that might include satellite-based tracking to keep the Superbus on course, sensors to scan the road for obstacles up to 300 metres ahead and a smart suspension system that remembers the rough spots in the road.
    Some detractors have suggested that making so many stops would erode the Superbus’s speed advantage, and others question whether a new cog in the Netherlands’ already-intricate transport infrastructure is even needed. Furthermore, the Superbus does not yet exist, whereas maglev trains are already operating successfully in Shanghai.
    The future of the project is uncertain. Its intended route, a new transport link connecting Amsterdam with the northern city of Groningen, was recently scrapped by the Dutch government. In spite of the setback, the project has since received an extra 7m in government funding, plus lm from Connexxion, a local bus company. With its combination of low emissions, high speed and snazzy design, this might prove to be a bus that is worth waiting for.
Which of the following is true of the Superbus?
选项 A、It can reach speeds of 250kph on regular roads.
B、It is smaller than a standard city bus.
C、It is as small as a standard city bus.
D、It has the same central aisle as a standard city bus.
答案B
解析 事实细节题。首段提到超级巴士的速度，第二句的定语从句中引导词which指的是supertracks，故[A]错误；由文章第二段首句中的only 1．7 metres high可知[B]正确，[C]错误；[D]与第二段第二句中的by doing away with the central aisle相反。故[D]错误。
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