Unit One 1
Reading 1
New Words and Expressions 1
Text How You Can Survive in the Desert 2
Text Comprehension 4
Vocabulary Exercises 5
Grammar and Structure 6
Group Activities 7
Further Reading 7
New Words and Expressions 7
Text Survival on Snow-Covered Mountains 8
Review and Practice 10
Word-Building Tips(1) 12
Unit Two 13
Reading 13
New Words and Expressions 13
Text The Subject Is People 14
Text Comprehension 16
Vocabulary Exercises 17
Grammar and Structure 18
Group Activities 19
Further Reading 19
New Words and Expressions 19
Text Anthropologists at Work 20
Review and Practice 22
Word-Building Tips(2) 23
Unit Three 25
Reading 25
New Words and Expressions 25
Text Graceful Hunters 27
Text Comprehension 29
Vocabulary Exercises 30
Grammar and Structure 31
Group Activities 32
Further Reading 32
New Words and Expressions 32
Text Garfield and His Creator 33
Review and Practice 35
Word-Building Tips(3) 37
Unit Four 38
Reading 38
New Words and Expressions 38
Text "Operator-Operator!" 39
Text Comprehension 41
Vocabulary Exercises 42
Grammar and Structure 43
Group Activities 44
Further Reading 45
New Words and Expressions 45
Text A Choked Child 45
Review and Practice 47
Word-Building Tips(4) 48
Unit Five 49
Reading 49
New Words and Expressions 49
Text The Men of Mars(Part Ⅰ) 50
Text Comprehension 53
Vocabulary Exercises 54
Grammar and Structure 55
Group Activities 56
Further Reading 56
New Words and Expressions 56
Text The Men of Mars(PartⅡ) 57
Review and Practice 59
Word-Building Tips(5) 61
Unit Six 62
Reading 62
New Words and Expressions 62
Text My New Interest in Reading 63
Text Comprehension 65
Vocabulary Exercises 65
Grammar and Structure 67
Group Activities 67
Further Reading 68
New Words and Expressions 68
Text Not a Class Dummy Any More 68
Review and Practice 70
Word-Building Tips(6) 71
Unit Seven 73
Reading 73
New Words and Expressions 73
Text Marie Curie 74
Text Comprehension 76
Vocabulary Exercises 77
Grammar and Structure 78
Group Activities 79
Further Reading 79
New Words and Expressions 79
Text Marie Curie and the New Tool in Medicine 80
Review and Practice 81
Word-Building Tips(7) 82
Unit Eight 83
Reading 83
New Words and Expressions 83
Text Tiny Invaders 84
Text Comprehension 86
Vocabulary Exercises 87
Grammar and Structure 88
Group Activities 89
Further Reading 89
New Words and Expressions 89
Text The Discovery of Penicillin 90
Review and Practice 91
Word-Building Tips(8) 92
Unit Nine 94
Reading 94
New Words and Expressions 94
Text Superstitions and Beliefs 96
Text Comprehension 98
Vocabulary Exercises 98
Grammar and Structure 100
Group Activities 100
Further Reading 101
New Words and Expressions 101
Text Eastern Medicine 101
Review and Practice 102
Word-Building Tips(9) 104
Unit Ten 105
Reading 105
New Words and Expressions 105
Text The Best Advice I Ever Had(Part Ⅰ) 106
Text Comprehension 108
Vocabulary Exercises 109
Grammar and Structure 110
Group Activities 111
Further Reading 111
New Words and Expressions 111
Text The Best Advice I Ever Had(Part Ⅱ) 112
Review and Practice 113
Word-Building Tips(10) 114
Unit Eleven 116
Reading 116
New Words and Expressions 116
Text When Grandparents Were Growing Up 117
Text Comprehension 119
Vocabulary Exercises 120
Grammar and Structure 121
Group Activities 122
Further Reading 122
New Words and Expressions 122
Text Learn More About Your Grandparents 123
Review and Practice 124
Word-Building Tips(11) 126
Unit Twelve 127
Reading 127
New Words and Expressions 127
Text What If You Couldn't 128
Text Comprehension 131
Vocabulary Exercises 132
Grammar and Structure 133
Group Activities 134
Further Reading 134
New Words and Expressions 134
Text A Little Person Teaches a Big Lesson 135
Review and Practice 137
Word-Building Tips(12) 138
Unit Thirteen 140
Reading 140
New Words and Expressions 140
Text Working on a Science Project(Part Ⅰ) 141
Text Comprehension 144
Vocabulary Exercises 145
Grammar and Structure 146
Group Activities 147
Further Reading 147
New Words and Expressions 147
Text Working on a Science Project(PartⅡ) 148
Review and Practice 149
Word-Building Tips(13) 151
Unit Fourteen 152
Reading 152
New Words and Expressions 152
Text The Value of Little Things 153
Text Comprehension 155
Vocabulary Exercises 156
Grammar and Structure 157
Group Activities 158
Further Reading 159
New Words and Expressions 159
Text Newton and the Falling Apple 159
Review and Practice 160
Word-Building Tips(14) 162
Unit Fifteen 163
Reading 163
New Words and Expressions 163
Text Christmas Day in the Morning 164
Text Comprehension 166
Vocabulary Exercises 168
Grammar and Structure 169
Group Activities 170
Further Reading 170
New Words and Expressions 170
Text To Meg,on Becoming Thirteen 171
Review and Practice 172
Word-Building Tips(15) 174