外语教学与研究出版社：《新视野大学英语》读写教程（第四册）电子教材书籍PDF电子版（第三版）

《大学英语教程》课程教材配套电子教案（PPT教学课件，北大版）第四册 第四单元

1．否定前缀 un- uncomfortable, unacceptable, unavoidable in- incomplete, incapable, indispensable, inevitable im- imperfect, impartial, immortal dis- disable, disadvantage mis- misplace, mislead, misfortune ab- abnormal

Old Father Time becomes a Terror 1. Objectives 2. Background 3. Discussion 4. Text Structure 5. Language Study 6. Content Questions 7. Essay Writing

Text A The Nightmare and The Dreams Part 1 Objectives Part 2 Background Part 3 Language Points

Text AA Friend In Need Objectives Background Discussion Structure Study Need Language Study

成都信息工程大学（成都信工学院）：《大学英语》PPT教学课件（第四册）Unit4 America as a Collage

Text A Smart Cars Part 1 Objectives Part 2 Background Part 3 Structure Study LR Part 4 Language Points

Text The Icy Defender Part 1 Objectives Part 2 Background Part 3 Structure Study Part 4 Language Points

Text A Charles DREW:Blood Bank Pioneer Starter Background Information Text Understanding Language Points Exercises Writing