Unit One 1
Dialogue:At the Customs（Ⅰ） 1
Text:Criminal Justice 2
Grammar：强调形式 6
Word Study:interfere,attend,find,allow,return 6
Exercises 9
Reading Practice:Stolen Goods 11
Unit Two 14
Dialogue:At the Customs（Ⅱ） 14
Text:Best Teacher I Ever Had 15
Grammar：主谓一致 19
Word Study:remember,teach,record,propose,cause 19
Exercises 21
Reading Practice:A Return to Tenderness 24
Unit Three 27
Dialogue:At the Bank 27
Text:Our Pursuit of Happiness 28
Grammar：动名词 33
Word Study:risk,wish,enjoy,cheer,arrive 33
Exercises 35
Reading Practice 38
Unit Four 41
Dialogue:At the Hotel（Ⅰ） 41
Text:Two Households—One Family 42
Grammar：不定式 2
Word Study:separate,share,assume,convince,face 46
Exercises 48
Reading Practice:My Stepfather,My Friend 52
Unit Five 55
Dialogue:Booking Tickets（Ⅰ） 55
Text:The Two Roads 56
Grammar：定语从句 60
Word Study:cast,flow,choose,strike,burst 60
Exercises 62
Reading Practice:An Unexpected Decision 66
Unit Six 69
Dialogue:At the Hotel（Ⅱ） 69
Text:Hong Kong 70
Grammar：将来进行时和将来完成时 74
Word Study:pass,reduce,fill,lie,employ 74
Exercises 77
Reading Practice:How to Make a Good Speech 80
Unit Seven 83
Dialogue:Booking a Table 83
Text:The Age of Fast Foods 84
Grammar：分词 2
Word Study:freeze,link,claim,concern,discover 88
Exercises 89
Reading Practice:How Americans Eat and Drink 93
Unit Eight 96
Dialogue:Booking Tickets（Ⅱ） 96
Text:We Are Not a Nation of Tax Cheats 97
Grammar：介词 2
Word Study:pay,owe,catch,move,happen 102
Exercises 103
Reading Practice:The Biggest Jump 106
Unit Nine 109
Dialogue:Booking Tickets（Ⅲ） 109
Text:Americans and Physical Fitness 110
Grammar：冠词 2
Word Study:expect,participate,increase,reflect,offer 114
Exercises 115
Reading Practice:A Letter and Its Reply 119
Unit Ten 123
Dialogue:Tour of London 123
Text:Who's Crazy? 124
Grammar：情态动词 128
Word Study:spend,gain,confirm,average,admit 128
Exercises 130
Reading Practice:Tuberculosis 133
Unit Eleven 137
Dialogue:At a Jeweller's 137
Text:The Conflagration 138
Grammar:句子的倒装 141
Word Study:see,shake,worth,destroy,defeat 141
Exercises 144
Reading Practice:Damaging Quake:A Warning of the Big One 147
Unit Twelve 151
Dialogue:At the Airport 151
Text:Is It Progress? 152
Grammar：现在完成进行时和过去完成进行时 157
Word Study:turn,restore,ensure,identify,justify 157
Exercises 159
Reading Practice:The Mystery of Migration 162
Glossary 165