如果您指的是中国的三年级下册英语教材，一般包括以下内容：
1. Unit 1: Lessons and activities related to greetings, introductions, and describing oneself.
2. Unit 2: Lessons and activities related to family members, daily routines, and telling the time.
3. Unit 3: Lessons and activities related to school subjects, transportation, and asking for directions.
4. Unit 4: Lessons and activities related to food and drinks, ordering at a restaurant, and healthy eating.
5. Unit 5: Lessons and activities related to clothing, colors, and shopping for clothes.
6. Unit 6: Lessons and activities related to animals, habitats, and describing animals.
7. Unit 7: Lessons and activities related to weather, seasons, and talking about the weather.
8. Unit 8: Lessons and activities related to hobbies, sports, and leisure activities.
9. Unit 9: Lessons and activities related to holidays and festivals, such as Chinese New Year and Christmas.
10. Unit 10: Revision and review of the previous units, as well as additional practice and assessment activities.
请注意，具体的教材内容可能会因不同的出版社而有所差异。建议您参考您学校或教师提供的具体教材，以确保获取准确的信息。

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