Unit 1 Information overload信息過量 Test foIder 1 Unit 2 Only a game游戲而已 Writing folder 1 Unit 3 Brands品牌 Test foIder 2 Unit 4 Spotlight on communication聚焦溝通 Writing folder 2 Revision Units 1—4 Unit 5 Is plastic fantastic?塑料很了不起嗎7 Test foIder 3 Unit 6 Music matters音樂事宜 Writing folder 3 Unit 7 Worlds to explore探索世界 Test foIder 4 Unit 8 Culinary tools餐具 Writing folder 4 Revision Units 5-8 Unit 9 Old and new新與舊 Test folder 5 Unit 10 In your dreams在夢(mèng)里 Writing folder 5 Unit 11 The physical world物理世界 Test foIder 6 Unit 12 Nature or nurture?先天還是后天? Writing folder 6 Revision Units 9—12 Unit 13 Cosmic debris宇宙殘骸 TestfoIder 7 Unit 14 Trends in society社會(huì)趨勢(shì) Writing foIder 7 Unit 15 Risk and reality風(fēng)險(xiǎn)與現(xiàn)實(shí) Test foIder 8 Unit 16 The human mind人類的大腦 Writing folder 8 Revision Units 13—16 Unit 17 Migration遷徙 Test foIder 9 Unit 18 The study of literature文學(xué)研究 Writing folder 9 Unit 19 Earning a living謀生 Test foIder 10 Unit 20 It's history這就是歷史 Writing folder 10 Revision Units 17-20 Grammar foIder Self-study folder MP3 tracking list Acknowledgements