近期，西安持续半个月的雾霾，引起人们对环境问题的重视

【答案】

Nowadays, the hazy weather frequently appears in our city. It has not only done harm to people’s health, but also affected the public transportation. Because of the low visibility, terrible accidents happen every now and then, some highways have to be shut down.

Obviously, air pollution is the main factor that has resulted in the frequency of hazy weather. At the same time, smoke from burning coal and all kinds of dust are also important factors. Besides, exhaust emission from cars and buses has made the situation even worse.

So as to protect our environment from becoming worse, we should take actions in no time.  we are supposed to reduce the use of coal and boost the use of public transport facilities, aiming to cut down the carbon dioxide emission. If we must use vehicle, try to use the environmental friendly ones. Such as, bicycle , green car. With everyone’s effort, I believe we will regain a fresh, clean and bright world soon.

【解析】

试题分析：这是一篇谈看法的写作。对雾霾环境问题的讨论，在座谈会上交流发言。阐述雾霾问题的危害，原因，以及对雾霾减少的提出建议。适当增加细节，结构清晰。时态：用一般现在时。

【亮点说明】not only… but also…，now and then，shut down，result in，Because of，take actions，be supposed to等词组使文章更生动；Obviously，At the same time，Besides使文章调理更清晰。we are supposed to reduce the use of coal and boost the use of public transport facilities, aiming to cut down the carbon dioxide emission.使用现在分词作状语；With everyone’s effort, I believe we will regain a fresh, clean and bright world soon.使用with的复合结构；文章的安排分为三部分，开头部分：雾霾问题的危害。正文部分：雾霾产生的原因。结尾部分：简要总结，提出建议。