If you ever have a problem pronouncing a word in English I recommend the following resource, Merriam-Webster Online Dictionary. They have thoughtfully recorded nearly every word in the their print edition and have the accepted pronunications for nearly all of them online.
Say you didn't know how to pronounce zealot. Just type in the word and it will take you to the definition and click on the tiny red speaker and up pops a window and it will say the word as many times as you need so you aren't saying zee-a-lot.
Have fun. You can even make it say the dirty words we all love. It's just like looking up the dirty words in 3rd grade and then you can giggle.