1. 阅读理解

Some experts believe that cars will unavoidably be eliminated. They see a day in the not-too-distant future when all cars will be abandoned and allowed to rust(生锈). Other authorities, however, think the car is here to stay. They hold that the car will remain a leading means of urban travel in the predictable future.

The car 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 jams. One proposed solution to this problem is the automated highway system. When the auto enters the highway system, a retractable (伸缩自如的) 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 by 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 enter instructions about his destination into the system. The computer will work out the best route, and reserve space for the car all the way to the correct exit on 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 predicated that an automated highway will be able to deal with 10, 000 vehicles per hour, compared with the 1, 500 to 2, 000 vehicles that can be carried by a present-day highway.

1. （1） What does the underlined word "eliminated" in paragraph 1 mean?

   A . Tested out. B . Passed down. C . Kept track of. D . Got rid of.
3. （2） What is the author's main concern about future autos?

   A . The air pollution brought about by them. B . Their seating space. C . The traffic jams caused by them. D . Their operating system.
5. （3） What provides autos with electric power in an automated highway system?

   A . A rail. B . An engine. C . A retractable arm. D . A computer center.
7. （4） What does the driver need to do in an automated highway system?

   A . Keep to the right route. B . Just wait to arrive at his destination. C . Inform the system of his destination by phone. D . Keep in constant touch with the computer center.