Unit 1 1
Pre-test 1
Text:Selling Old Books 2
Language Systems 6
Unit 2 14
Pre-test 14
Text:What Exactly Is a Lie? 15
Language Systems 19
Unit 3 28
Pre-test 28
Text:In the Library 29
Language Systems 33
Unit 4 43
Pre-test 43
Text:Patients Needed 44
Language Systems 48
Unit 5 58
Pre-test 58
Text:“Aside” 59
Language Systems 64
Unit 6 73
Pre-test 73
Text:How Does Your Brain Work? 74
Language Systems 78
Unit 7 88
Pre-test 88
Text:What Makes Life Worth Living? 89
Language Systems 93
Unit 8 102
Pre-test 102
Text:Earthquake Prediction in China 103
Language Systems 108
Unit 9 118
Pre-test 118
Text:Healthy Eating 119
Language Systems 122
Unit 10 131
Pre-test 131
Text:Wages and Salaries 132
Language Systems 136
Appendix 144
Glossary 144