Self-introduction 自我介绍
Good morning,I'm ----and I've been invited to give this talk/presentation/lecture because---
I have done reseach in/I have a special interest in/my experience in
Introduction of Topic 话题介绍
In my presentation/talk/lecture today I shall be dealing with---
The subject of my---today is---
What I'd like to do today is introduce/suggest/analyse/describe/explain
My topic/subject today is---
I shall be dealing with 2/3/4...main areas/topics/subjects today
Describing Sequences and Timing 程序介绍和时间安排
First I want to/spend a few minutes outline---/remind you of the background to/summarise the ---/explain ---/present---
Next I shall ---/after that I will take the opportunity of describing ---/
THen we'll look at---
Finally I want to---