Unit 1 Eat Better to Keep Fit Text Exercises Unit 2 Wrestling with Television Text Exercises Unit 3 Smoking Advertisements Text Exercises Unit 4 Independent Learning Text Exercises Unit 5 City Found in the Sea Text Exercises Unit 6 Trees as Vital Food Source Text Exercises Unit 7 Reduce, Reuse, Recycle Text Exercises Unit 8 World Media Showers Praise on China Text Exercises Unit 9 Old Phone, Steady Friend Text Exercises Unit 10 Taboos in America Text Exercises Keys