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Unit 1 Welcome Back to School 1
Unit 2 My Family 11
Unit 3 How Many? 22
Recycle 1 31
期中测试题 33
Unit 4 Do You Like Pears? 36
Unit 5 Where Is My Ruler? 47
Unit 6 At the Zoo 58
Recycle 2 67
期末测试题 71
听力材料 73
参考答案 79