【文章內(nèi)容簡介】
ics show that in Beijing alone, there are 1620,000 cars, among which private cars add up to (=number) 560,000. the increase in the number of cars brings about a lot of problems, such as air pollution, noise and traffic congestion. Then a controversy arises: whether private cars should be encouraged in China? People differ in their ideas about it. Many people are against owning cars. According to them, private cars have to be limited in China. The reasons for it are obvious. To begin with, cars contribute to air pollution. A lot of big cit