Unit 1 Going places 1
Unit 2 Growing up 13
Unit 3 Cross-cultural communication 26
Unit 4 Science and technology 39
Unit 5 Wealth and happiness 54
Unit 6 Problems of our times 68
Unit 7 Animals 80
Unit 8 Natural disasters 94
期中试卷A卷 106
期中试卷B卷 115
期末试卷A卷 124
期末试卷B卷 134
听力材料及参考答案 144