A kind of little cars may some day take the place of today’s cars. If everyone drives such cars in the future，there will be less pollution from the cars. There will also be more space for parking cars in cities，and the streets will be less crowded. Three such cars can park in the space now needed for one car of the usual size. The little cars will cost much less to own and to drive. Driving will be safer，too，as these little cars can go only 65 kilometers an hour. The cars of the future will be fine for getting around a city，but they will not be useful for long trips. Little cars will go 450 kilometers before needing to stop for more gas(汽油). If big cars are still used along with the small ones，two sets of roads will be needed in the future. Some roads will be used for the big，quick cars and other roads will be needed for the slower，smaller ones. 小题1:There is much pollution from the cars today because________. A．people drive big cars B．the cars go 65 kilometers an hour C．people drive small cars D．the cars can go 450 kilometers an hour 小题2:The usual size of cars today are________that of future cars. A．smaller than B．the same as C．three times as large as D．a little larger than 小题3:We can learn from the passage that________. A．big cars cost less to own and to drive B．the cars of the future will be much smaller than today’s cars C．big cars are not useful for long trips D．small cars are faster than big ones 小题4:The street will be less crowded in the future because________. A．there will be fewer cars B．there will be fewer people in the street C．driving future cars will be safe D．future cars will be much smaller 小题5:Two sets of roads may be needed in the future because________. A．there will be too many cars in the future B．more and more people will get around a city C．big cars will be used along with the small ones D．it looks more beautiful to have two sets of roads