Here are a couple of good websites where you can hear them pronounce the words you want to learn in english: http://www.elllo.org/ and http://www.howjsay.com/ and http://shiporsheep.com if you need anything else just contact me.

Avoid laziness. As a partime English teacher and with my own experience of learning and getting into English, the shortcut I found is to recite well-written articles, from short to long.:) As for listening, it works as a golden method to improve the speaking as well as writing ability. When some beautiful expressions flow into mind, automatically you would find youself are capable of using them gradually.:) Best luck.:)

Listen, read and practice. Use the resources available in this website and make friends to practice.