目录
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Unit 1 Helping at home 2
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Unit 2 My friends 14
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Unit 3 Places we live in 26
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Unit 4 Helping in the community 38
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Unit 5 The weather and us 50
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Unit 6 Changing for the seasons 62
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Revision Let’s help! 74
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Appendix 1 Songs 78
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Appendix 2 Words in each unit 80
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Appendix 3 Vocabulary 83
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Appendix 4 Useful expressions 86
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