Word stress is your magic key to understanding spoken English. Native speakers of English use word stress naturally. Word stress is so natural for them that they don't even know they use it. Non-native speakers of English who don't use word stress, encounter two problems:
1. They find it difficult to understand native speakers, specially those speaking fast.
2. The native speakers may find it difficult to understand them.
In these videos we look at the most important aspects of word stress: