Is voice over to re-enforce text a good idea?

We have an e-learning module that has some nice video animations and graphics, but also some text.

It was been suggested that to "jazz" up the module, a voice over be used on the text pages to keep the users interest. The text would read out the first paragraph (before the user need to do any interaction with the page)

For example the following would be read out AND appear on the screen:

"Jack and Jill are two friends, click through the items below to find out what they do together"

Then the options [go up hills] and [get water] would just be items on the page

What are peoples thoughts on this? Any suggestions on how to do this well?

Note : The module is already friendly to screen readers so accessibility isn't a reason to do this.