呼语及开场白部分：
Ladies and gentlemen, May I have your attention, please I have an announcement to make.
正文部分：
All the teachers and students are required to attend it.
Please take your notebooks and make notes.
Please listen carefully and we'll have a discussion in groups.
Please come on time and don't be late.
结束语部分：
Please come and join in it.
Everybody is welcome to attend it.
I hope you'll have a nice time here.
That's all. Thank you.
