Students'Book 3
Unit 1 Naming and classifying 3
Unit 2 Composition and function 7
Unit 3 Safety precautions and warnings 11
Language review 1 16
Unit 4 Quantities(1) 18
Unit 5 Quantities(2) 25
Unit 6 Dimensions and weights 29
Language review 2 34
Unit 7 General statements 37
Unit 8 Comparing and contrasting(1) 41
Unit 9 Comparing and contrasting(2) 45
Language review 3 50
Unit 10 Describing experiments 54
Unit 11 Talking and writing about the past 57
Unit 12 Properties 60
Language review 4 63
Unit 13 Describing the function of an instrument 66
Unit 14 Describing processes(1) 70
Unit 15 Describing processes(2);definitions 74
Language review 5 78
Unit 16 Structure 82
Unit 17 Understanding descriptions and instructions 88
Unit 18 Predictions 93
Language review 6 98
Teachers'Book 103
Introduction 103
Unit 1 Naming and classifying 106
Unit 2 Composition and function 107
Unit 3 Safety precautions and warnings 108
Language review 1 109
Unit 4 Quantities(1) 110
Unit 5 Quantities(2) 111
Unit 6 Dimensions and weights 112
Language review 2 114
Unit 7 General statements 114
Unit 8 Comparing and contrasting(1) 115
Unit 9 Comparing and contrasting(2) 117
Language review 3 117
Unit 10 Describing experiments 118
Unit 11 Talking and writing about the past 119
Unit 12 Properties 120
Language review 4 121
Unit 13 Describing the function of an instrument 121
Unit 14 Describing processes(1) 122
Unit 15 Describing processes(2);definitions 123
Language review 5 124
Unit 16 Structure 126
Unit 17 Understanding descriptions and instructions 127
Unit 18 Predictions 128
Language review 6 129
附：词汇表 131