CHAPTER ONE Introduction 7
CHAPTER TWO The Vowel System of American English 7
Unit 1 The Vowel Sounds 7
Unit 2 Vowel Contrast Drills 22
Unit 3 Vowel Reduction Rules 32
Unit 4 Vowel Additions 36
CHAPTER THREE The Consonant Variations of American English 40
Unit 5 Consonants：Stops 40
Unit 6 Consonants：Fricatives ＆ Affricates 43
Unit 7 Consonants：Nasals,Liquids＆Glides 48
Unit 8 Consonant Blends 53
Unit 9 Stop Consonant Variations 65
Unit 10 Word Reductions in American English 73
CHAPTER FOUR The Intonation Patterns of American English 86
Unit 11 Word Level Intonation Patterns 86
Unit 12 Phrasing Longer Messages 95
Unit 13 Sentence Level Intonation 106
Unit 14 Linking Ideas：Guidelines for Phrasing Longer Messages 121
Appendixes 127
Appendix 1：IPA Vowel Sound System of American English 127
Appendix 2：IPA Consonant Sound System of American English 128
Appendix 3：IPA Vowel Sound System of British English 129
Appendix 4：IPA Consonant Sound System of British English 130
Appendix 5：Further Reading 131
Appendix 6：自学辅导（Self-Taught Guidance） 131
Appendix 7：Keys to the Exercises 145