问题补充：
What kind of car will we be driving in ? Rather different from the type we know today, with the next 20 years bringing greater change than the past 50．The people who will be designing the models of tomorrow believe that environmental problems may well accelerate the pace of the car’s development. Today they are students on the transport design course at London’s Royal College of Art.
Their vision is of a machine with three wheels instead of four, electrically powered, environmentally clean, and able to drive itself along “intelligent” roads equipped with built-in power supplies. Future cars will pick up their fuel during long journeys from a power source built into the road, or store it in small quantities for travelling in the city.
Instead of today’s seating arrangements—two in front, two or three behind, all facing forward--- the car will have a versatile interior with adults and children in a family circle.
This view of the future car is based on a much more sophisticated road system, with strips built into motorways to supply power to vehicles passing along them, cars will not need drivers, because computers will provide safe driving control and route finding. All the driver will have to do is say where to go and the computer will do the rest. It will become impossible for cars to crash into one another. The technology already exists for the car to become a true automobile.
71．What kind of car will we be driving in ?
A．Three wheeled. B．Electrically powered.
C．With a versatile seating arrangement D．All of the above.
72．How long will a volunteer be required to spend?
A．A few hours every day. B．A couple of hours each day.
C．One or two hours every two weeks. D．A few days per week.
73．What does the word “versatile” in Paragraph 3 mean?
A．having many different kinds of skill
B．easily able to change from one direction to another
C．easily able to change from one kind of activity to another
D．having many different uses
74．In paragraph 4 “with strips built into motorways to supply power to vehicles passing along them” means “there are many ”.
A．traffic lights to control the speed of future cars
B．street posts to indicate directions for drivers
C．power sources along the street are able to supply power to automobiles
D．stop marks along the street to stop cars
75．What is the main idea of the passage?
A．Future cars are completely different from the automobiles we know today.
B．The design of future cars will be more sophisticated.
C．Because of the new type of cars, our future environment will become cleaner.
D．The road system will become more sophisticated than it is today.D
答案：
(答案→)D
解析：
