英语演讲稿有关地球主题课前演讲 英语演讲稿有关地球主题课前演讲 演讲要注意技巧，同时需要一篇好的演讲稿，我为大家整理了英语演讲稿有关地球主题课前演讲，欢迎大家。 篇一 Hello everyone,Im .My topic is we should protect earth. As we all notice,the weather becomes very odd recently.In a month like now,it should be quite warm,but Im still wearing my winter dresses.Its still rather cold,which shouldnt happen at this season.In summer its extremely cold while terribly hot in winter.All these factors make earth a unfavourible place to live in. here you can show s
