【目录】 Unit 1 Wanting to Find Success! Practice Communication Skills: Introductions Grammar: Tense (1) Reference Answers Unit 2 The Pursuit of Happiness Practice Communication Skills: Making Requests Grammar. Tense (2) Reference Answers Unit 3 The Difference between Plants and Animals Practice Communication Skills: Invitation Grammar: Tense (3) Reference Answers Unit 4 Do Animals Think? Practice Communication Skills: Offering Help Grammar: The Singular or Plural Forms of Predicates Reference Answers Unit 5 The Energy Crisis Practice Communication Skills: Suggestions Grammar: The Consistency of Subjects and Predicates (1) Reference Answers Unit 6 Family Practice Communication Skills: Greetings Grammar: The Consistency of Subjects and Predicates (2) Reference Answers Unit 7 English Meals Practice Communication Skills: Making Apologies Grammar: Adjectives Reference Answers Unit 8 How Americans Eat and Drink Practice Communication Skills: Complaints Grammar: Comparison (1) Reference Answers Unit 9 People and Colors Practice Communication Skills: Approval and Disaproval Grammar: Comparison (2) Reference Answers Unit 10 Better Known as Mark Twain Practice Communication Skills: Making Phone Calls Grammar: Infinitives Reference Answers Unit 11 Money and Finance Practice Communication Skills: Saying Goodbye Grammar: Gerund Reference Answers Unit 12 Insurance Practice Communication Skills: Expressing Thanks Grammar: Participles Reference Answers References
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