CONTENTS前言 1
Unit One Big Bucks the Easy Way 1
Unit Two Deer and the Energy Cycle 12
Unit Three Why Do You Believe That the Earth Is Round？ 23
Unit Four Jim Thorpe 34
Unit Five To Lie or Not to Lie——The Doctor'S Dilemma 45
Unit Six How to Mark a Book 56
Unit Seven The Luncheon 68
Unit Eight The New Caves 79
Unit Nine Journey West 90
Unit Ten Why People Work 101
大学英语单元跟踪测评答案 111