21. One significant improvement in the future car will probably be ________.
A) its power source
B) its driving system
C) its monitoring system
D) its seating capacity(A)
22. What is the authors main concern?
A) How to render automobiles pollution-free.
B) How to make smaller and safer automobiles.
C) How to solve the problem of traffic jams.
D) How to develop an automated subway system.(C)
23. What provides autos with electric power in an automated highway system?
A) A rail.
B) An engine.
C) A retractable arm.
D) A computer controller.(A)
24. In an automated highway system, all the driver needs to do is ________.
A) keep in the right lane
B) wait to arrive at his destination
C) keep in constant touch with the computer center
D) inform the system of his destination by phone(D)
25. What is the authors attitude toward the future of autos?
A) Enthusiastic.
B) Pessimistic.
C) Optimistic.
D) Cautious.(C)
这篇材料讲的是未来汽车的问题。第一段先是举出了两种截然相反的观点:在不久的未来,汽车将会被人类废弃(all autos will be abandoned and allowed to rust),在可预见的将来,汽车依然会是城市交通的主要方式(the car will remain a leading means of urban travel in the foreseeable future)。这样本文讨论的侧重点也就呈现出来了这里将要讨论的是汽车的未来。
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