When the stressed word has only one syllable, just prolong the word and make the vowel higher in pitch. If the stressed word has more than one syllable, make sure that the stressed syllable of the word is prolonged and emphasized more than usual.

Prolonging the stressed vowel may sound exaggerated to you, particularly if the vowel is already a long vowel, such as /a/ and /ae/ and /ou/. For example, if you say, “It’s really far.” or “Stop that!,” the vowel sound may be much longer than it would sound in your native language. Don’t say: “It’s really far.” Say: “It’s really far (faaar).” Don’t say “Stop that!” Say “Stop (staaap) that!” Let’s first get used to prolonging the vowels within stressed words since this will create a distinctly American sound to your English.