书面表达（满分25分）
假如你是李华，请你根据下表内容的提示，为中学生英语报写一篇有关“Earth Hour”的短文，谈谈你对此活动的认识及你在节能活动中所能做的事。
注意：
1．短文的开头已经给出，不计入总词数；
2．可根据内容要点适当发挥，但不要逐条翻泽；
3．词数，100词左右。
参考词汇：企业enterprise；意识awareness
Earth Hour is an annual international event created by the World Wide Fund for Nature.
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