Unit 1 Environmental Protection 1
Unit 2 Travelling and Transportation 9
Unit 3 Generation Gap 17
Unit 4 Academic Activities 26
Unit 5 Cyberspace Network 34
Unit 6 Love and Marriage 43
Unit 7 Food and Restaurant 51
Unit 8 World Cultural Heritage 59
Unit 9 Financial Crisis 67
Unit 10 Housing Problems 76
Unit 11 Gatherings and Parties 84
Unit 12 Health and Stress 92
Unit 13 International Business 100
Unit 14 Literature and Arts 108
Unit 15 Natural Disasters 116
Unit 16 Sports and Fitness 123
Audio Script 132
Key 231