急求一篇英语两分钟左右的演讲稿.求一篇高三左右英语水平的1分半到两分钟左右的演讲稿.内容大概是讲"我"把手机放口袋里在坐公车时被偷了,告诉同学们要小心.也可以其他贴近生活的内容.

One morning,I was on my way to school.I was sending a short message to my friend,then I just slipped my cellphone into my pocket.Although I thought maybe it wasn't safe to do so,because someone could'...