阅读下面的短文，然后按照要求写一篇150词左右的英语短文。
Earth Hour is an annual international event set up by the WWF (World Wildlife Fund) and held on the last Saturday of March. It asks families and factories to turn off their non-essential（不必要的） lights and electrical appliances(电器) for one hour to raise awareness(意识) of the need to take action on climate change. It was first held in Australia in 2007, and achieved worldwide participation（参加） in 2008.
Earth Hour 2008 was the biggest voluntary power down in history. More than 370 cities in 35 countries took part and celebrated Earth Hour in their local ways. Businesses, school groups, communities and individuals celebrated all over the world with candle-lit dinners, torch parties, and street celebrations. Symbolic(标志性的) buildings and landmarks went dark, including the Sydney Opera House, the Sears Tower, and the Coliseum in Rome.
The WWF is sending a message to the people around the world that Earth Hour is the perfect opportunity for individuals, governments, schools, businesses and communities from all over to unite in a common purpose, and in response to a global issue that affects us all.
【写作内容】
假设你是广东某中学学生会 * * ，在今年的Earth Hour来临前，请你写一封英文倡议书，号召你所在中学的学生们参加此活动，并把此倡议书发表到Earth Hour的官网上。内容要点包括：
以约30个词介绍Earth Hour活动；
然后以约120个词写一封倡议书号召同学们参加此活动，内容包括：
（1）目前地球环境和能源的状况；
（2）发起倡议并提供可行的做法。
【写作要求】
1．作文可以参照阅读材料的内容但不得直接引用原文中的句子；
2．文中不能出现真实姓名和学校名称。
【评分标准】
概括准确，语言规范，内容合适，篇章连贯。
