問題詳情：
Some experts feel that the automobile is to "die"．They see a day in the not-too-distant future when all autos will be abandoned and allowed to become rotten iron and steel rubbish． 51 They think that the car will remain a leading means of urban travel in the near
future．
52 It should become smaller, safer, and more money-saving, and should not be powered by the petrol 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 jam． 53
When the auto enters the freeway system, a retractable arm, which can be moved inwards or backwards, will drop from the auto and touch a rail that is similar to the subway trains electrically powered from the system, and control of the vehicle will pass to a central computer． 54
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 freeway．_55_ It is guessed that an automated freeway 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 freeway．
A．Other authorities, however, think the auto is here to stay．
B．The computer will then monitor all of the car's movements．
C．One proposed solution to this problem is the automated freeway system．
D．Experts have different views on what role autos will play in the near future．
E．The motorcar will undoubtedly change significantly over the next 30 years,
F．Drivers in the freeway system can sit back and do nothing but control the direction．
G．The driver will then be free to relax and wait for the sound speaker that will warn him of his coming exit．
【回答】
AECBG
知識點：七選五題型
題型：未分類
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