Try doing broad transcriptions of these words. Hover your cursor over the word to see a tooltip with the IPA transcription. It should work on most modern browsers, though you may need to install a Unicode font that can show IPA characters -- as explained by John Wells.
Don't feel you have to transcribe the entire word (there's over 400!). If what you need most is practice on vowels, only worry about getting the vowels right 400 times.
The words are transcribed the way I say them, using the broad transcription policies we've decided on for the Fall 2010 class. If something's not the way you say the word, you should at least be able to read my transcription well enough to figure out exactly how we say it differently.
yearned[jɹ̩nd]