This lesson is very useful for all learners of English, especially Spanish speakers. Ronnie goes through the pronunciation of bird, beard, beer, bear, and bare, all of which are difficult to master. You can do a quiz based on this lesson at the engVid website.
In this English Video lesson Ronnie is explaining the difference between in pronunciation of the words LIVE (as a verb) and LIVE (as an adjective) in English. Their spelling is exactly the same, but the pronunciation is totally different.