Part One English Pronunciation and Superstructural Features Unit 1 Front Vowels Central Vowels English Syllables Unit 2 Back Vowels Word Stress Unit 3 Closing Diphthongs Sentence Stress Unit 4 Centralized Diphthongs Weak Form Unit 5 Plosion Loss of Plosion or Incomplete Plosion Unit 6 Fricatives Consonant Clusters Unit 7 Fricatives English Liaison/Linking Unit 8 Affricates Assimilation Unit 9 Nasals Falling Tone Unit 10 Laterals Rising Tone and Rising-falling Tone Unit 11 Semivowels English Rhythms Unit 12 Sense Group and Pausing American Pronunciation Part Two Imitation and Practice Unit 1 Short Passages Unti 2 Famous Speeches Unit3 VOA & BBC References