阅读下面的文字,根据要求作文。2007年3月31日晚,在澳大利亚悉尼,约有220万当地居民熄灯一小时以支持采取行动应对全球变暖。仅仅在一年之后,该活动就被推广到世界各地,逐渐成为一项全球性的环保活动——“地球一小时”。2010年的“地球一小时”更是创造了历史, Read the sentence below, and write a composition according to request. On the evening of March 31, 2007, about 2.2 million local residents in Sydney, Australia, shunned their lights for an hour to support action to combat global warming. Just a year later, the event has been extended to all over the world and has gradually become a global environmental activity - “Earth Hour”. 2010 “Earth Hour” is to create more history,