英语书面表达,求英语作文高手请帮忙写一篇：学校计划举办一次关于节约用电的演讲比赛,假设你将参赛.请你针对学生在校园里浪费

As we know ,electricity is very important in our life. Without electricity we can not do anything . So saving electricity is very necessary because it can not only reduce waste but it can also reduce pollution and protect our environment. While in our daily life ,some people don't take it seriously. They leave with the lights or their fans on ,which causes waste.We should try not to use cellphones to reduce the use of electricity. We can also turn off lights the moment we leave. And we should call on everybody around you to do so . Only in that way can we save electricity. That's all for my speech. Thank you!