英语书面表达（关于通知的）该怎么写?格式什么的,日期写哪里?是上面还是在下面结尾处写上?

1.书面通知
正文上方有Notice或Announcement.以海报形式出现时,通知常以海报内容为题,如 Lecture,Football Match 等.当然题目中还可以先出现发通知的单位.日期一般写在结尾.
2.口头通知
一般不写题目,也不必有发通知的时间.常以Ladies and gentlemen,Boys and
girls 等开头,接下来是一些引人注意的话,如,Be quiet,please!May I have
your attention?Attention,please!Please stop talking over there!Please be
quiet,everyone,there is something I have to tell you.
结束语常用：Any questions?Does everyoneunderstand?That’s all.Thank you.
将来时态是通知的长哟暖和时态,句子用祈使句较多,内容要求简洁明了,条理清晰,时间要求精确.