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.  

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 Nemours & Co. recently invented a fire-resistant fabric. The company claims that this fabric significantly reduces the combustibility of mattresses and upholstered furniture. In tests conducted by a Boston-based hotel chain, the material has proved very efficient in preventing or delaying the combustion of mattresses and furniture after fires have been started. ____(47). California and several other states are considering new regulations that would require the use of fire-resistant furniture in public places (defined as area where 10 or more people gather). ____(48). American laws require hotels to buy fire-resistant mattress covers, though covers made of fiber glass and cotton do exist and are used by some companies. ____(49).The Du-Pont fabric will well for less than $ 5 a yard and it is believed that the market will develop over the next two years. ______(50).

150

 A.The development of the material is timely.  B.And last year, England passed a law requiring that all furniture contain fine-resistant material.  C.The company expects that the competition will be very strong in the market because right now, its product is just one option.  D.And there are some expects.  E.Often the fires occur in hotels and are caused by people smoking in bed.  F.However, the cotton covers wash out over time and the fiber glass is not very comfortable.  

249

 A.The development of the material is timely.  B.And last year, England passed a law requiring that all furniture contain fine-resistant material.  C.The company expects that the competition will be very strong in the market because right now, its product is just one option.  D.And there are some expects.  E.Often the fires occur in hotels and are caused by people smoking in bed.  F.However, the cotton covers wash out over time and the fiber glass is not very comfortable.  

348

 A.The development of the material is timely.  B.And last year, England passed a law requiring that all furniture contain fine-resistant material.  C.The company expects that the competition will be very strong in the market because right now, its product is just one option.  D.And there are some expects.  E.Often the fires occur in hotels and are caused by people smoking in bed.  F.However, the cott