Lesson One 1
Lesson Two 10
Lesson Three 21
Lesson Four 30
Lesson Five 43
Lesson Six 55
Lesson Seven 65
Lesson Eight 75
Lesson Nine 85
Lesson Ten 97
Lesson Eleven 106
Lesson Twelve 117
Appendices： 129
Ⅰ．Word Study 129
Ⅱ．Translation of the Texts 140
Ⅲ．Key to Exercises 147
Ⅳ．Irregular Verbs（Book Ⅰ—Ⅳ） 168
Ⅴ．Vocabulary 171
Ⅵ．Additional Words and Expressions 180