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Text：My Earliest Memories 1

Grammar：The Object Clause 1 3

Grammar：Types of Sentences 4

The Adverbial Clause 4

Text：The First Postage Stamp 12

Grammar：The Present Perfect Continuous Tense 16

Lesson 21

Contents 21

Lesson 22

Text：China 22

Lesson 23

Lesson 24

Lesson 25

Grammar：The Superlative Degree 26

Lesson 26

Lesson 27

Lesson 28

Lesson 29

Lesson 30

Lesson 31

Lesson 32

Lesson 33

Text：Crazy Goats 33

Lesson 34

Lesson 35

Lesson 36

Lesson 37

Grammar：The Past Continuous Tense 37

Lesson 38

Text：The Story of Little Gauss 43

Grammar：The Past Perfect Tense 47

Text：The Story of Dr.Drew 53

Grammar：The Passive Voice（1） 57

Text：Glass Goes Modern 63

Grammar：The Passive Voice（2） 67

Text：Marco Polo 75

Grammar：The Attributive Clause（1） 80

Text：Synthetics 87

Grammar：The Attributive Clause（2） 93

Text：An American Mother 97

Direct Speech and Indirect Speech The Past Future Tense 103

Text：Africa—Land and Civilization 111

Grammar：Some Basic Uses of the Article 117

Text：Lenin in London 124

Grammar：The Gerund and the Participles 131

Text：The Olympic Games 138

Grammar：The Infinitive 144

Text：The People of the United States 151

Grammar：The Subject Clause and The Predicative Clause 157

Text：Standing Room Only 164

Grammar：The Subjunctive Mood 170

Text：The Cop and the Anthem 177

Grammar： Word Formation 186

Text：Patients Needed 195

Grammar：The Use of“It” 202

Revision Exercises 209

Vocabulary 216