一、通知信一般包含的主要内容有，标题、正文、呼语、正文、结束语、以及日期。
1.标题一般用Notice。
2.常用呼语有 ：
①.All teachers and students will be required to...
所有师生被要求做...
②.Notice is hereby given that..
兹通知
③..Our school/The Student Union will/is going to hold...
我们的学校将要举办..
④.A lecture will be given at 7:00 this evening in..
一场演讲将要今晚7点举行。
2.常用的开头语有：
All the teachers and students are required to attend it.
全体师生必须参与。
Please take your notebooks and make notes.
请带好笔记本。
Please listen carefully and we'll have a discussi on in groups.
请认真听讲并且我们有准备吃的。
Please come on time and don't be late.
请准时参加不要迟到哦。
3.常用结束语：
Everybody is expected to attend it.
众所期待。
Be sure to attend it on time.
敬请及时参加。
4.常用确保准时参加的短句：
Please come and join in it.
准时到场。
Please come and join in it.
请准时参加。
I hope you'll have a nice time here.
期待看见你。
That's all. Thank you.
谢谢大家。
二、扩展：写作的思路 ，写作注意事项：
(1)格式
(2)使用婉转语气
(3)开头写出what ;who ;why ;where and when,
(4)单词和短语的选择：improve one's English;h
old an English-speaking contest;sign up ;give pr
izes;(提高英语，举办演讲比赛，签名等)
(5)在写英语作文时候，一定要简明扼要的表现出核心内容，内容要连贯，更不要拼错单词。只要作文表达连贯，意思清楚就可以。