��Ŀ䛡� Unit 1 Spread Your Ideas Part I Introduction Part II Teaching Suggestions Part III Detailed Study of Text A Part IV Keys to Exercises Part V Text Translation Unit 2 _x005fe Magic of Love Part I Introduction Part II Teaching Suggestions Part III Detailed Study of Text A Part IV Keys to Exercises Part V Text Translation Unit 3 Be Smart with Your Smartphone Part I Introduction Part II Teaching Suggestions Part III Detailed Study of Text A Part IV Keys to Exercises Part V Text Translation Unit 4 Space Odyssey Part I Introduction Part II Teaching Suggestions Part III Detailed Study of Text A Part IV Keys to Exercises Part V Text Translation Unit 5 Building Strength Part I Introduction Part II Teaching Suggestions Part III Detailed Study of Text A Part IV Keys to Exercises Part V Text Translation Unit 6 Humans and Nature Part I Introduction Part II Teaching Suggestions Part III Detailed Study of Text A Part IV Keys to Exercises Part V Text Translation Unit 7 Starting a Business Part I Introduction Part II Teaching Suggestions Part III Detailed Study of Text A Part IV Keys to Exercises Part V Text Translation Unit 8 e Truth about Smiles Part I Introduction Part II Teaching Suggestions Part III Detailed Study of Text A Part IV Keys to Exercises Part V Text Translation