Question Type 1 1
Write a Sentence Based on a Picture 看图完成句子 2
Warm Up 英语句子的结构 6
Unit 1 名词＋名词 19
Unit 2 名词＋介词（词组） 25
Unit 3 名词＋连词 31
Unit 4 名词＋动词 37
Unit 5 动词＋介词 43
Unit 6 动词＋连词 49
Practice Test 55
高频词汇 以场景为划分标准 80
Question Type 2 95
Respond to a Written Request书面回复 96
Warm Up 电子邮件的结构与写作方法 100
Unit 1 Business-Customer E-mails 109
Unit 2 In-Company E-mails 117
Unit 3 Business-Business E-mails 126
Unit 4 Personal E-mails 136
Practice Test 146
高频惯用句型 以场景为划分标准 156
Question Type 3 161
Write an Opinion Essay论文写作 162
Warm Up 论文的结构与写作方法 167
Unit 1 Business-related Topics 180
Unit 2 General Topics 190
Practice Test 200
高频论题 以主题为划分标准 205
Final Test 225
Final Test 1 226
Final Test 2 238
Final Test 3 250
Final Test 4 262
Final Test 5 274
Suggested Answer 287
Appendix 369