Unit 1 Health Problems
　　Unit 2 Jobs and Professions
　　Unit 3 Travel Disasters
　　Unit 4 Fighting against Diseases
　　Unit 5 Global Economy and Finance
　　Unit 6 Dealing with World Poverty and Starvation
　　Unit 7 Space Explorations
　　Unit 8 Urbanization
　　Unit 9 Crime and Punishment
　　Unit 10 What Makes a Good Language Learner?
　　Unit 11 Schooling and Education
　　Unit 12 The Changing Job Market
　　Unit 13 Advertising and Media
　　Unit 14 People and Population
　　Unit 15 Travels and Holidays
　　Unit 16 Business and Businessmen
　　Sample Test One
　　Sample Test Two
　　Tapescript
　　Answer Key