The British Council has a nice listening activity where you have to pick the correct dragon that is being described.  You can also read and listen to a story called The Princess and The Dragon.

They are both accessible to Beginning English Language Learners.

I’ve placed these activities on my World History page under The Middle Ages.

That might seem like a strange place to put those links.  But I have activities related to the legend of King Arthur in the same section, and it just seemed like a good fit.