Here’s what you need to do:
1 – Double-click on the first word in the block of text that you want to select. That word should now be highlighted.
2 – Now find the last word in the block of text you want to select. Don’t worry if you have to scroll the page up or down in order to find it.
3 – Once you have found the last word in the desired block of text, press and hold the Shift key and then click on that last word.
After you make that last click you should see that everything that’s located between the two words you clicked on is now highlighted. You can now do your Copy, Cut or whatever else you wish to do with the text.