Become familiar with English sounds and the stress within words.
English is not a phonemic language, that is, the words are not always spoken the way they are written. There are 26 letters in the English alphabet, but 44 sounds and phonetic symbols are used to represent the sounds in the dictionaries.
Moreover, not only the sound but also the stress within the words and in a sentence plays an important role. One part of a bi-syllable and a multi-syllable word is always stressed more than the other parts.