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  3. Some pessimistic experts feel that the automobile is bound to fall into disu

Some pessimistic experts feel that the automobile is bound to fall into disu

游客2024-02-02  21
问题     Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, however, think the auto is here to stay. They hold that the car will remain a leading means of urban travel in the foreseeable future.
    The motorcar will undoubtedly change significantly over the next 30 years. It should become smaller, safer, and more economical, and should not be powered by the gasoline engine. The car of the future should be far more pollution-free than present types.
    Regardless of its power source, the auto in the future will still be the main problem in urban traffic congestion (拥挤). One proposed solution to this problem is the automated highway system.
    When the auto enters the highway system, a retractable (可伸缩的) arm will drop from the auto and make contact with a rail, which is similar to those powering subway trains electrically. Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer. The computer will then monitor all of the car’s movements.
    The driver will use a telephone to dial instructions about his destination into the system. The computer will calculate the best route, and reserve space for the car all the way to the correct exit from the highway. The driver will then be free to relax and wait for the buzzer (蜂鸣器) that will warn him of his coming exit. It is estimated that an automated highway will be able to handle 10,000 vehicles per hour, compared with the 1,500 to 2,000 vehicles that can be carried by a present-day highway. [br] One significant improvement in the future car will probably be _____.
选项 A、its power source
B、its driving system
C、its monitoring system
D、its seating capacity
答案 A
解析 推断题。从第2段首句可以看出第2段主要讲未来汽车的变化方向，该段第2、3句说，它将变得更小巧、安全、节能，给它提供动力的将不再是汽油发动机。而第3段也着重展望了未来汽车动力系统的新模式，故未来汽车一个最重要的改进就在于它的能量来源，故答案为A。
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