Unit 1 Greeting, Introduction and Leave-Taking Unit 2 Asking for and Giving Information Unit 3 Asking for and Giving Directions Unit 4 Requests and Offers Unit 5 Advice and Suggestions Unit 6 Seeking and Giving Opinions Unit 7 Likes, Dislikes and Preferences Unit 8 Similarities and Differences Unit 9 Agreeing and Disagreeing Unit 10 Certainty and Uncertainty Unit 11 Hope and Possibility Unit 12 Apologies and Forgiveness Unit 13 Permission and Obligation Unit 14 Complaint and Persuasion Unit 15 Good Wishes and Congratulations Unit 16 Past Events, Future Plans and Intentions 參考文獻(xiàn)