Cantents？ 1
Lesson 15 Text：Imperialism Will Not Last Long 1
Grammar：The Adverbial Clause 4
Lesson 16 Text：The Naked Soul of the U.S Invaders 7
Grammar：The Attributive Clause 11
Lesson 17 Text：Dust 14
Grammar：The Obiect Clause 18
Lesson 18 Text：New Awakening of the American Negroes 21
Lesson 19 Text：Expansion and Contraction 27
Lesson 20 Text：A Letter from South Vietnam 32
Grammar：The Infinitive 36
Lesson 21 Text：Machine Building Goes Ahead 40
Grammar：The Gerund 44
Lesson 22 Text：At a Tailor’s Shop 47
Grammar：The Participle 53
Lesson 23 Text：The People’s Railways 56
Lesson 24 Text：Jackson’s Arm 63
Lesson 25 Text：The Hsinan-River Hydro-electric Power Station 70
Lesson 26 ？ 77
Lesson 27 ？ 82
Supplemental 90
Lesson 1 Lathe 90
Lesson 2 “Wheel”Brand Bench Type Hand Drill 93
Appendices 97
Ⅰ．Word Formation 97
Ⅱ．Idioms and Phrases 101
Ⅲ．Vocabulary 102