Chapter 1 Making friends 1
Chapter 2 Our daily life 13
Chapter 3 Man’s best friend 24
Chapter 4 Electricity 35
Chapter 5 A diary 47
Chapter 6 The world of numbers 59
期中测试题 71
Chapter 7 Encyclopaedia 80
Chapter 8 Protecting our environment 92
Chapter 9 Travel 104
Chapter 10 Newspapers 116
Chapter 11 Poems about life 127
Chapter 12 Water 138
期末测试题 149
参考答案 158