目录 Table of Contents Unit01 Who is the best? · 4 Unit02 What’s the world’s best? · 12 Unit03 We use water every day. · 20 Unit04 We can save many things. · 28 Unit05 Do you like bears? · 36 Unit06 Bad weather can be dangerous. · 44 Unit07 We eat plants and animals. · 52 Unit08 Be safe outdoors. · 60 Unit09 What’s in the house? · 68 Unit10 How many crayons are there? · 76 Word List · 84 Workbook · 93 Answers and Scripts · 126
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