How to copy range to clip board

[Siegfried Heintze]

I have a text file with the strings "begin resume" and "end resume" before
and after my resume.

How do I copy this to the clipboard? Whenever I position my self at "begin
resume", mark the current location with Ctrl+Space, and search for "end
resume" I loose the beginning mark!

Surely there is a faster way that using PGDN and PGUP for this?

 Thanks
     Siegfried