听力原文：Some people are inconsiderate drivers. In the city, they will often stop right in the middle of the street while looking for a certain home or landmark. Other drivers will suddenly slow down at a crossroad to make a right or left turn. Still others never wait for their turns in bottleneck situations where the cars in two lanes must merge alternatively into one. Perhaps the most inconsiderate drivers are those who throw trash out their windows, which spoils the pleasure of driving as well as the environment. (57)