Unit One Big Bucks the Easy Way 轻轻松松赚大钱

Words and Expressions

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Unit Two Deer and the Energy Cycle 鹿和能量循环

Words and Expressions

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Simulated College English Test 1(Band 4)

Unit Three Why Do We Believe That the Earth Is Round 我们为什么相信地球是圆的

Words and Expressions

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Unit Four Jim Thorpe 吉姆·索普

Words and Expressions

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Simulated College English Test 2(Band 4)

Unit Five To Lie or Not to Lie—The Doctor's Dilemma 撒谎还是不撒谎——医生的难题

Words and Expressions

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Words and Expressions

Unit Six How to Mark a Book 怎样在书上做记号

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Simulated College English Test 3(Band 4)

Unit Seven The Luncheon 午餐

Words and Expressions

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Unit Eight The New Caves 新洞穴

Words and Expressions

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Simulated College English Test 4(Band 4)

Unit Nine Journey West 西行记事

Words and Expressions

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Words and Expressions

Unit Ten Why People Work 人为什么工作

Notes to the Text

Brief Explanations

Writing Guidance

Supplementary Exercises

Simulated College English Test 5(Band 4)

Key to Supplementary Exercises

Key to Tests

附：听力部分的文字材料