Don't judge me by this question.... but is there an English language recording of Verdi's Aida out there?
Elmore?
Yes, indeed, there is, DR Matthew, as part of the Opera In English series from the British label Chandos, with Dennis O'Neill and Jane Eaglen. It's available through Amazon. I'm not judging you at all. I think it's a great idea to interest your students.
Have you ever seen the old 1954 stop motion of the opera HANSEL & GRETEL, with Anna Russell as the voice of the Witch? It's also quite wonderful, but a little silly. It has its scary moments.