Unit 1 Smart Houses Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 2 A University Structure and Course Requirements Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 3 Environmental Noise and Its Solution Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 4 Food Preservation Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 5 Living and Studying in Britain Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 6 Paris Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 7 Keep Fit While Studying at School Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 8 International Hotel Hospitality Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 9 Farming in UK Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 10 The Development of Cinematography Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 11 Preventative Medicine Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 12 Home Security Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 13 Sports Studies Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 14 The Dry Land Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 15 Space Management Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 16 Quality Control Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 17 Traffic Problems in Cities Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 18 Note-Taking Skills Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 19 Field Trip Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Unit 20 Bridges Part One Before You Listen Part Two Listen Now Part Three Look at This Part Four Here's More Appendix Ⅰ Listening Scripts Appendix Ⅱ Answer Key