Unit 1 Biodiversity

Part Ⅰ Phonetics:Intonation and Sense Group（语调和意群）

Part Ⅱ Useful Sentences in Speaking

Part Ⅲ Group Discussion

Part Ⅳ Class Survey

Unit 2 Love

Part Ⅰ Phonetics:Word Stress（词重音）

Part Ⅱ Useful Sentences in Speaking

Part Ⅲ Group Discussion

Part Ⅳ Class Survey

Unit 3 Time

Part Ⅰ Phonetics:Vowels（元音）

Part Ⅱ Useful Sentences in Speaking

Part Ⅲ Group Discussion

Part Ⅳ Class Survey

Unit 4 Green Business

Part Ⅰ Phonetics:Consonants（辅音）

Part Ⅱ Useful Sentences in Speaking

Part Ⅲ Group Discussion

Part Ⅳ Class Survey

Unit 5 Beauty

Part Ⅰ Phonetics:Assimilation（同化）

Part Ⅱ Useful Sentences in Speaking

Part Ⅲ Group Discussion

Part Ⅳ Class Survey

Unit 6 Cloning

Part Ⅰ Phonetics:Weak Forms（弱读）

Part Ⅱ Useful Sentences in Speaking

Part Ⅲ Group Discussion

Part Ⅳ Class Survey

Unit 7 Media and Culture

Part Ⅰ Phonetics:Linking（连读）

Part Ⅱ Useful Sentences in Speaking

Part Ⅲ Group Discussion

Part Ⅳ Class Survey

Unit 8 Development

Part Ⅰ Phonetics:Pronouncing-s,-ed（-s和-ed的发音）

Part Ⅱ Useful Sentences in Speaking

Part Ⅲ Group Discussion

Part Ⅳ Class Survey