目录

●UNIT 1
Chronology:Talking about When Things Happen
Chapter 1Napoleon:From Schoolboy to Emperor
Chapter 2 Pompeii:Destroyed,Forgotten,and Found
Chapter 3Steve Jobs:A Man with a Vision
Video Surviving an Avalanche
UNIT 2
Process:Describing How Things Work
Chapter 4Roller Coasters:The Ups and Downs of How They Work
Chapter 5 Language:How Children Acquire Theirs
Chapter 6Robots:How They Work and Learn to Work
Video Tristan da Cunha Oil Spill
UNIT 3
Classification:Defining and Putting Things into Categories
Chapter 7 A Tidal Wave:What Is It?Can We Predict It?
Chapter 8Levels of Language:Formal and Informal
……