Hi Everyone, my name is May...This is my first time to be here... =) I want to ask what kind of fundamental courses I need to take in order to prepare for the astronomy university programs?

 Hello and welcome May!  Depending on where you go and what curricula they have when you get there, I'm sure they will outline any core classes you'll need.  I would imagine at the very least you'll need a year or two of both physics and calculus, both of which figure highly in astronomy.  Chemistry of course would be another natural, particularly if you get into analyzing stellar spectra.  Then there's the astronomy-specific classes.

 Best of luck to you should you pursue this field for your career! :)

Thank you very much for your help! =)