完形填空

　　The United States is full of motor cars．There are still many families 　　1　　 cars but some have two or even more．However, cars are used for more than 　　2　　 They are a necessary part of life．Cars are used for business．They are 　　3　　 to offices and factories by workers who have no other ways to get to their jobs．When salemen are sent to different parts of the city, they have to drive in order to 　　4　　 their products．Farmers have to drive into the city in order to get supplies．

　　Sometimes small children live more than a mile from the school．One mother drives on Monday, taking her 　　5　　 children and the neighbour's children as well．　　6　　 mother drives on Tuesday, another on Wednesday and so on．This is called forming a car pool．Men also form car pools, with three or four men taking turns driving to the place 　　7　　 they all work．More car pools 　　8　　 be formed in order to put fewer cars on the road and to use 　　9　　 gasoline．Parking is a great 　　10　　 and so is the traffic in and around cities．Too many cars are being driven．Something will have to be done about the use of cars．

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阅读理解

　　When you are in England, you must be very careful in the streets because the traffic(交通，车辆)drives on the left．

　　Before you cross a street, you must look to the right first and then the left．

　　If the traffic lights are red, the traffic must stop．Then the people on foot can cross the road．

　　If tge traffuc kuggts are greebm, the traffic can go．People on foot mustn't cross the road．

　　In the morning and in the evening when people go to or come from work, the streets are very busy．Traffic is the most dangerous then．

　　When you take a bus in England, you have to be careful, too．Always remember the traffic moves on the left．So you must look first or you will go the wrong way．

　　In many English cities, there are big buses with two floors．You can sit on the second floor．From there you can see the city very well．It's very interesting!

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阅读理解

　　Now cities are full of cars．Some families even have two or more cars．Parking(停车)is a great problem, and so is the traffic in around the cities．Something will have to be done to change it．What will the cars of tomorrow be like?

　　Little cars may some day take the place of today's big cars．If everyone drives little cars in the future(将来)there will be less pollution(污染)in the air．There will also be more space for parking cars in cities, and the streets will be less crowded．Three little cars can fit(适合)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．What is more, these little cars can go about 65 kilometers per(每)hour．

　　Little cars of the future will be fine for getting around a city, but they will not be useful for long trips．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, fast cars, and other roads will be needed for the slower small ones．

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