材料是城市热岛效应的始作俑者,故选A。Р11.When es to rooftop gardens, what can be inferred from the passage?РA.They make people much happier.РB.They provide more benefits than urban parks.РC.They help to save money and keep a healthy diet.РD.They have e very popular in recent years.Р解析:选C 推理判断题。根据最后一段中的“reduce cooling bills”“leading to savings on heating bills”和“making their diets healthier”以及最后一段的整体内容可推知,屋顶花园能够降低取暖或降温的费用支出。同时,它还可以为蔬菜种植提供场地,为人们提供新鲜的蔬菜,从而使人们的饮食更健康,故选C。Р12.What’s the author’s attitude towards rooftop gardens?РA.Sceptical. B.Supportive.РC.Critical. D.Objective.Р解析:选B 观点态度题。根据最后一段的第一句“Rooftop gardens provide many of the same benefits as other urban parks and garden spaces, but without taking up the muchneeded land.”并结合本段的整体内容可推知,作者是提倡创建屋顶花园的,故选B。sceptical“怀疑的”;critical“批判性的,批评的”;objective“客观的”。