I'm taking your description of what you want to do literally, so you may
have to experiment if your need is different, but you should be able to use
either or both of these methods;
1- Select the first word, then hold the Control key while you double-click
each additional word, or
2- Select the first word, then hold Control while you drag to select each
additional word.
I don't have Word 2000 available to test in but they should both work.