Unit 1 Names and Places
Unit 2 Times of Numbers
Unit 3 Weather
Unit 4 Transportation
Unit 5 Describing People
Unit 6 Likes and Dislikes
Unit 7 Describing Objects
Unit 8 Locations and Directions
Unit 9 Family Schedule
Unit 10 Daily Aativities
Unit 11 Traveling
Unit 12 Greetings & Small Talks
Unit 13 Expressing Thanks，Congratulations，Sympathy
Unit 14 Expressing Requests and Responses
Unit 15 Social Etiquette
Unit 16 Holidays
Unit 17 Making Decisions
Unit 18 Changing World
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