Unit 1 The History of Computers and Internet Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Note-Taking Part 4 Optional Exercises Unit 2 Internet Application Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Analyzing Complex Sentences Part 4 Optional Exercises Unit 3 Software Development Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Cornell Note-Taking System Part 4 Optional Exercises Unit 4 Computer Viruses and Security Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Describing Graphic Information Part 4 Optional Exercises Unit 5 E-commerce Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Search Engines Part 4 Optional Exercises Unit 6 Computer Assisted Education Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Referring to Other People's Ideas Part 4 Optional Exercises Unit 7 Data Processing in Social Media Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Choosing the Correct Writing Plan Part 4 Optional Exercises Unit 8 Cloud Computing Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Presentation Part 4 Optional Exercises Unit 9 Artificial Intelligence Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Fomat a Formal E-mail Part 4 Optional Exercises Unit 10 Virtual Reality Part 1 Vocabulary Part 2 Reading Part 3 Extending Skill: Writing a Resume Part 4 Optional Exercises