Unit 8 A green world P1 Welcome to the unitI. 按提示填空。I find thistool is a great help when I _ the garden. The cars _ serious air pollution. Please _ the radio. There are so much noise. I dont think that was a _ decision. II. Translate the setences into English.我们能为绿色生活做些什么呢？ 我常常乘地铁上班。 我们可以通过骑自行车来减少空气污染。 乘坐交通工具是明智的。 离开教室时请关灯。