Unit 1Outstanding Overseas Chinese Americans
Unit 2Computers and the Internet
Unit 3Disasters
Unit 4Solutions to Traffic Problems
Unit 5Fashion Trends
Unit 6Fortune and Misfortune
Unit 7Mental Disorders
Unit 8Individual Lifestyles
Unit 9Charity
Unit 10Future Possibilities
Unit 11Olympics
Unit 12Nobel Laureates
Unit 13Environmental Risks
Unit 14Entrepreneurship
Unit 15Major World Religions
Unit 16Underwater Diving
参考答案及录音文字