学校要举行校运会的通知

Announcement（或者Notice也可以的）
Boys and girls, may I have your attention, please?（典型的通知开头语） We will have a sports meeting next Friday. The meeting will be held on the playground of our school, from 8 o'clock in the morning till 5 o'clock in the afternoon. Anybody who would like to take part in the competitions? Just come on and join in!
Also, we would like to remind you to make sure you can arrive on time. Thank you!
the Students' Union Feb 13th,2006
（学生会的说法最好记住．这种通知没有落款也可以，但地道的"学生会"往那一摆，至少多得两分！）