As to the severe smog, I read a news this morning that an eight-year old girl who livd near a busy thoroughfare in Jiangsu Provience had been diagnosed with lung cancer and believed to be the country's youngest lung cancer patient.That makes me feel so heavy. As long as the rapid development of economy and industy, it is so luxury to see a blue sky. In my point of view, there are two reasons caused the severe smog coming so frequently. First, in the wake of the car industry development, more and more family-used cars emerge followed with the harzardous gas emits, which is considered the best reason for heavey smog. Second, the oil quality can't reach the standard. Going to the first one, I think the solution depends on ourselves by taking public traffic as much as possible in order to reduct emission. And as for the second, that must be depended on the related department to improve the standards restraining the oil pruduction factories.?