商业阶梯英语PDF电子书下载

目录 1

Lesson One 1

Lesson Two 8

Lesson Three 16

Lesson Four 24

Lesson Five 33

Lesson Six 41

Lesson Seven 48

Lesson Eight 58

Lesson Nine 69

Lesson Ten 78

Reading Material（Ⅰ） 88

Lesson Eleven 90

Lesson Twelve 100

Lesson Thirteen 108

Lesson Fourteen 116

Lesson Fifteen 125

Lesson Sixteen 132

Lesson Seventeen 139

Lesson Eighteen 146

Lesson Nineteen 153

Lesson Twenty 161

Reading Material（Ⅱ） 169

Lesson Twenty-One 171

Lesson Twenty-Two 180

Lesson TwEnty-Three 188

Lesson Twenty-Four 197

Lesson Twenty-Five 207

Lesson Twenty-Six 213

Lesson Twenty-Seven 219

Lesson Twenty-Eight 226

Lesson Twenty-Nine 232

Lesson Thirty 239

Reading Material（Ⅲ） 246

附录 248

Ⅰ．Translated Texts for Reference 248

Ⅱ．Glossary 291

Ⅲ．Common British and American Names 320

Ⅳ．A List of Irregular Verbs 321