目录

分课词汇

Lesson 1 Civilization and History

Lesson 2 The Fun They Had

Lesson 3 Big Numbers and Infinities

Lesson 4 Oil

Lesson 5 An Observat ion and an Explanat ion

Lesson 6 A Robot about the House

Lesson 7 A Wrong Man in Workers’ Paradise

Lesson 8 Making Surgery Safe

Lesson 9 Using Land Wisely

Lesson 10 The Karburator

Lesson 11 Work and Play

Lesson 12 Three Days to See

Lesson 13 The Laws of Nature

Lesson 14 Spaceship？

Lesson 15 The Wisdom of Socrates

Lesson 16 Snapshot of a Dog

Lesson 17 Individuals and Masses

Lesson 18 Children at Play

Lesson 19 Symptoms

Lesson 20 How to Avoid Foolish Opinions

词汇索引