本站不提供该课本链接，目录如下：
Unit 1 Where do people live?
　　Get ready, Communicate
　　Get ready, Explore
　　Explore
　　Extend
Unit 2 Where do animals live?
　　Get ready, Communicate
　　Get ready, Explore
　　Explore, Communicate
　　Extend
Unit 3 How do we use numbers?
　　Get ready, Explore
　　Explore
　　Communicate
　　Extend
Unit 4 What do we buy?
　　Get ready, Explore
　　Explore
　　Communicate
　　Extend, Communicate
Unit 5 How are the seasons different?
　　Get ready, Extend
　　Explore
　　Explore, Communicate
　　Communicate
Unit 6 What's amazing about plants?
　　Get ready, Explore
　　Explore
　　Communicate
　　Extend
Unit 7 How do we keep safe on the road?
　　Get ready, Explore
　　Communicate
　　Explore
　　Extend
Unit 8 What do our grandparents do?
　　Get ready, Communicate
　　Extend
　　Explore
　　Communicate