English is a communicative language in an era of the availability of immense information and advanced technology. English is called a global language . Thai learners’ TOEFL scores are significantly lower than the scores of learners from other Asian counties. There are two main areas of pronunciation teaching and learning: segmentals and suprasegmentals. Segmental refers to the individual sounds and suprasegmental refers to rhythm, stress, prominence and intonation. Many material writers, teacher sand researchers have stated that the suprasegmental aspect should be the first aspect for language learners to learn. This is because learning about supraseg mentals can help language learners increase their self-confidence in speaking Acquiring an understanding of supraseg mentals is a problem for Thai learners because of the difference between the Thai and English sound systems .