not really.. as long as u can speak in simple english, and as long as people can understand u then u're fine.. some ppl tend and WANT TO speak like a pro (with some super power ascent/slang) when they actually cant, and that makes things worse.. also makes my hair stand most of the time....
like what ckwei said, there r lots of places where u can undergo some english course for some period of time (3 months, 6 months, etc), different place may differ.. another way of learning to speak english fluently is to go get a part time job.. u'll start off with talking to the staffs, and after a while when u build up ur confidence, u'll start talking to the customers like they're ur fren.. thts wat im doing also.. i dun have super good english, maybe somewhere around the average side only..
most of the time, and depending on the unit you're taking, most lecturers usually use simple english on lecture slides and assessments.. but sometimes they may also play with the english to screw students up.. so beware, u'll be more on the beneficial side if ur english standard is above average..
IMO, if u know super bombastic english words doesnt mean ur good english is super good.. put the bombastic stuff away, learn the simple stuff first, then u'll be sailing smoothly all the way, hopefully.. i dun believe in bombastic words.. i seldom use those kinda stuff in my assignments.. i use them only when i need to, but abit only.. most of the time non, sometimes 3-4 words in a whole report, but never have big big words everywhere.. it also depends on wat i have to do..
bingo~ =D Who needs bombastic words >.< well, don need to a excellent english user to come to study in aussie. I'm not that good myself, but heck, we're here to learn. =) + no need to speak in aussie slang to mix with them, cos its not needed at all. haha. I see ppl learning their way of speaking like "How's it going mate?" "cheers mate", gosh, =.= those words came out from a chinese from china or msia, sounds so so funny.