ent. This could be done by making fewer trips each day. It could be done by keeping the automobiles in good shape. It could be done through better driving habits. If these were done, the nation’s use of fuel would fall by close to two thirds of million barrels per day.Everyone can help to save gas. One way is to ride buses. Some could walk to work. Others could ride their bikes. Another way is to share a ride. About one-third of all cars are used for going to and from work. You can go shopping with a friend from time to time. If two people use a car instead of one, they all save. Driving stress would be less, too, with fewer cars on the road. The savings on gas around the nation would come to one-half million barrels a day. Still another way to save is by cutting out trips one does not need to take. Can you find one car trip per week that could be done by telephone? Can you combine trips? If each car traveled 10 miles less each week, they could save three-and-a-half billion gallons of gas a year. This come to nearly 5 percent of the total passenger car demand for gas.The way people drive decides how much fuel they save. Careful drivers may get 20 percent more miles per gallon than ordinary drivers. They obey the 55-mile-per-hour speed limit. If just one gallon of gas were saved each week for each car in the country, a total of five-and-a-half billion gallons could be saved a year.

参考答案： C     答案解析：
1Which of the following statements best expresses the main idea of the text?
 A.Drivers could change their driving habits and keep their cars in good shape.  B.The importance of saving fuel is severely ignored.  C.Saving gas is important and could be done in several ways.  D.People should use fewer automobiles and make good use of telephone.  
参考答案： B     答案解析：
2According to the passage, it is possible to save five percent of the total passenger car demand for gas each year, if
 A.people all share car-riding instead of owning their own cars  B.all the cars cut off one trip on 10 miles each week  C.two people go shopping from time to time  D.people use telephones instead of riding cars  
参考答案： D     答案解析：
3he passage mentions all of the following facts EXCEPT
 A.keeping one’s car in good shape helps one save gas  B.riding buses instead of driving is helpful to gas saving  C.sharing a ride or walking to work is another way to save gas  D.driving stress can be greatly relieved by using less gas.  
参考答案： C     答案解析：
4Which of the following statements is true about an average car according to the passage?
 A.An ordinary car can run a lot more than 10,000 millions with 650 gallons of gas.  B.An ordinary car can run no more than 15 miles with one gallon of gas.  C.An ordinary car with ten gallons of gas can run no more than 150 miles.  D.An ordinary car can run 10,000 miles each year with 70 billion gallons of fuel.  
参考答案： A     答案解析：
5The author thinks that if more people share a ride, there would be
 A.fewer cars on the road  B.a higher speed limit  C.more highway accidents  D.fewer cars to be sold  
补全短文
(第46～50题，每题2分，下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。共10分)1、Fire-fighting Fabric Each year thousands of people worldwide are killed or seriously injured by fires started in mattresses. ____(46). To help prevent fires in crowded public spaces, E.I.Du Pont de Nemour

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