书面表达
假如你是李华,是校刊记者。请你为校刊写一篇英语短文,介绍最近在我国很多城市发生的雾霾(haze)天气。请参考以下要点:
1. 危害;
2. 原因;
3. 如何自我防护。
注意:
1. 词数100左右;
2. 开头已给出,不计入总词数。
Recently haze pollution has happened in many cities of China.
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