Module 1 Life in the Future 1
Module 2 Traffic Jam 21
Module 3 Body Language and Non-verbal Communication 41
Module 4 Great Scientists 62
Module 5 A Trip Along the Three Gorges 82
Module 6 Unexplained Mysteries of the Natural World 103
Self-assessment Test 121
Tapescripts 134
附录：参考答案简析 149