Unit 1(Book 1,1-5) 1
Unit 2(Book 1,6-9) 31
Unit 3(Book 1,10-15) 60
Unit 4(Book1,16-20) 95
Unit 5(Book2,1-4) 117
Unit 6(Book2,5-8) 143
Unit 7(Book2,9-14) 178
The Appendix(附录) 210
Key to the Exercises(单项练习答案) 210
Key to the Comprehensive Exercises(单元综合练习答案) 216
An English Test(Ⅰ)(英语试题)(1) 226
An English Test(Ⅱ)(英语试题)(2) 234
Phrasal Verbs(短语动词) 244