初一年级（上） 1
Unit One 1
Exercises for Lessons 1-6 10
Unit Two 17
Exercises for Lessons 7-9 21
Mid-term Examination 28
Unit Three 37
Exercises for Lessons 10-12 40
Unit Four 47
Exercises for Lessons 13-18 55
Final Examination 62
初一年级（下） 71
Unit One 71
Exercises for Lessons 1-6 82
Unit Two 90
Exercises for Lessons 7-9 97
Mid-term Examination 103
Unit Three 110
Exercises for Lessons 10-12 115
Unit Four 123
Exercises for Lessons 13-18 135
Final Examination 141
初二年级（上） 150
Unit One 150
Exercises for Lessons 1-4 159
Unit Two 168
Exercises for Lessons 5-8 175
Mid-term Examination 182
Unit Three 191
Exercises for Lessons 9-12 199
Unit Four 208
Exercises for Lessons 13-16 215
Final Examination 224
初二年级（下） 234
Unit One 234
Exercises for Lessons 1-4 243
Unit Two 250
Exercises for Lessons 5-8 257
Mid-term Examination 265
Unit Three 275
Exercises for Lessons 9-12 282
Unit Four 290
Exercises for Lessons 13-16 296
Final Examination 304
初三年级（上） 315
Unit One 315
Exercises for Lessons 1-3 326
Unit Two 332
Exercises for Lessons 4-5 338
Mid-term Examination 347
Unit Three 358
Exercises for Lessons 7-9 367
Unit Four 376
Exercises for Lessons 10-12 384
Final Examination 393
初三年级（下） 404
Unit One 404
Exercises for Lessons 1-2 409
Unit Two 415
Exercises for Lessons 3-4 419
Unit Three 427
Exercises for Lessons 5-6 433
Unit Four 441
Exercises for Lessons 7-8 445
Final Examination 451
参考答案 462