假如你是李华 你的美国朋友Tom来信询问中国各地，尤其是北京，雾霾天气严重情况，请你回信，1对雾霾

Dear Tom,
I’m glad to receive your letter. I have learned from your letter that you are concerned about the smog which frequently appears in some areas of China. Thank you for your concern. I’m also very worried about such terrible weather because it has brought much inconvenience or rather harm to people’s health such as traffic jam, road accidents, bad coughs, throat hurts and ever lung cancers and so on.
As everybody knows, a good environment comes from good protection. So we should do what we can to make a difference. Try to drive less and choose air-friendly products. Only when everyone has the environmental awareness can we have cleaner air.
Hoping to hear from you soon and share your good ideas.

Dear Tom, I’ve received your letter and thanks for your concern. Recently the hazy weather has hit many places in China, causing quantities of serious problems. For a start, the hazy weather is harmful to people’s health and daily life. Many people find it difficult to breathe so they have to wear masks. What’s worse, more traffic jams have happened and quite a few flights have to be put off. The hazy weather in China has been caused by many factors. The severely polluted environment contributes a lot to this nightmare. In my opinion, we should call on people to use more public transport, thus reducing the number of cars in the streets. Besides, we have to raise people’s awareness of environmental protection. Only if every single person makes contributions to protecting the environment, will we have a more cleaner and beautiful planet. Best wishes 　　 　　 Yours， LiHua