(2014? Mudanjiang) Read the materials and complete the following questions. Material 1: (As shown in the picture) Material 2: Haze weather is caused by human factors and meteorological conditions.

Reading the picture, we can see that (1) my country's Liaoning-Central-South Industrial Base and Beijing-Tianjin-Tangshan Industrial Base are smog-prone areas.

(2) The coal-fired heating method and urban motor vehicle exhaust emissions in most areas of our country have increased the formation of haze weather.

(3) We must shout: "Environmental awareness, walk to work." According to the meaning of the question.

So the answers are: (1) Beijing, Tianjin and Tang Dynasty; (2) coal-based heating methods; urban vehicle exhaust emissions; (3) walking to work.