English Club has some of the best explanations on how to improve your American English pronunciation using word stress and sentence stress. The explanations they provide for these key pronunciation areas are very clear and most of them include some audio.
I frequently recommend English Club to my students who like to do extra pronunciation practice outside of class because I like the way they use easy to read charts to explain pronunciation concepts.
Tags: american accent, american pronunciation, learn american english pronunciation, learn to speak english, Sentence stress
