How does stress change the meaning of a sentence?

http://www.engvid.com/ You've probably watched movies and wondered why you were missing some of the jokes, or couldn't follow the conversation even though you heard and understood the words clearly. In this lesson, you'll find out that a big part of communication is not just language, but how we speak. After you've watched the lesson, test your understanding by taking the free quiz at http://www.engvid.com/stress-meaning-sentence/