as far as I understand it, Hal can't "read" the way your thinking "par examplea" Hal cannot 'look' at a web page and read what he interperts as text. As a matter of fact he's not even aware of anything outside of his own little window (ask him he'll tell you)
But to get to your answer. You need to select the text you want hal to read, copy the text (which will place the text onto the windows clipboard) and copy that text into the dictation pad.
Yes, it seems like a bit of trouble, but if you need to go over a lot of text it still useful.
If there's a better way M. I'd love to know about it myself.
There you go - Good luck
WholyChao