There are several previous discussions on the subject. If I were you, I'd start from the originl file (the one from which the PDF was made), and forget about the PDF for your PP presentation.
Its not possible with Adobe Reader. The max that you will be able to achieve via Reader X is to convert your PDF to a text file (.txt).
To enable your PDF to be saved as a word file (.DOC) or many other formats, you will need Adobe Acrobat X.
There are plenty of free PDF to Word conversion tools on the Internet; google it.