题目

小明放学后从学校乘轻轨回家，他从学校出发，先匀速步行至轻轨车站，等了一会儿，小明搭轻轨回到家，下面能反映在此过程中小明与家的距离y与x的函数关系的大致图象是（ ） A . B . C . D . 答案：DA small town in southwest Britain is banning(禁止) plastic bags in an attempt to help the environment and cut waste—a step that environmentalists believe is a first for Europe. Shopkeepers in Modbury population 1500,agreed to stop handing out disposable plastic bags to customers on Saturday.They said paper sacks and cloth carrier bags would be offered instead. Last month,San Franciso became the first U.S. city to ban plastic grocery bags.Internationally,laws to discourage the use of plastic bags have been passed in parts of South Africa and Ireland,where governments either tax shoppers who use them or fine companies that hand them out.Bangladesh already bans them,and so do at least 30 remote Alaskan villages. Modbury,about 225 miles southwest of London,has also declared a bag amnesty(宽限期),allowing local people to hand in plastic bags that have piled up at home.They will be sent for traveling. The Modbury ban was the idea of Rebecca Hosking,who saw the effect of bags on marine life while working in the Pacific as a wildlife camerawoman.She said response(反应) in the town so far had been “really positive”. “Modbury is quite an old-fashioned town and a lot of people have wicker baskets to go out shopping anyway,”Hosking told Sky News Television. The Worldwatch Institute,an environmental research agency,states that 100 billion plastic bags are thrown away each year in the United States alone.More than 500 billion are used yearly around the world. What was Rebecca Hosking? A.A lawyer.                                                     B.An environmentalist. C.A sailor.                                                       D.A photographer. The underlined word “disposable” in the passage probably means _______. A.acceptable                                                    B.valuable C.throw-away                                                  D.long-lasting It can be inferred from the passage that _______. A.most of the people in Modbury continue to use plastic bags B.fewer and fewer plastic bags will be used in the world C.San Francisco is the first city to ban plastic bags in the world D.most countries in the world have passed laws to ban plastic bags Which of the following would be the best title of the passage? A.Environmental Protection B.Big Cities Banning Plastic Bags C.Effect of Plastic Bags on Sea Animals D.British Town Banning Plastic Bags