2009年12月六级听力复合式听写原文及答案

developing countries are copying western-style transportation systems down to the last detail. (45)the problems caused by motorized vehicles in the west are often magnified in developing nations. pollution-control measures are either not strict or non-existent, leading to choking clouds of smog. gasoline still contains lead, which is extremely poisonous to humans. (46) movement in some citieses to a virtual standstill, as motorized trafficpetes with bicycles and pedestrians.

in addition to pollution and traffic jams, auto safety is a critical issue in developing countries.