The language of presentations

The subject of this presentation/talk is...
I'm going to talk about...
My topic today is...

I'll be happy to answer any questions
afterwards
If you have any questions, I'll answer them at the end
Perhaps I'll clear up one point before I start
To clarify things..

I'm going to deal with three aspects of this subject.
First I'll talk about...
I'm going to divide my talk into four sections.
I intend to cover..

Let's first/now consider
The next aspect I'd like to consider is...
Moving on now to...
Turning next to...
I'd now like to turn to...
That brings me to my next point....

As you can see from the chart...
The graph shows that...
If you look at the map, you'll see that...
In this diagram...
It is clear from the chart that...

For example
For instance

In summary
So, to sum up...
In conclusion...
I'd like to sum up by saying...
So, to remind you of where we began this morning...
We've looked at/ We've seen...