Unit 15 What do people eat？

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单元过关直通车

Unit 16 What a good，kind girl！

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Unit 17 You mustbemore careful！

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Unit 18 Seeing the doctor

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Unit 19 A visit to an island

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Unit 20 Mainly revision

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Unit 21 She taught herself

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Unit 22 The sports meeting

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Unit 23 A famous person

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Unit 24 What were they doing？

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Unit 25 The accident

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Unit 26 Mainly revision

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单元过关直通车参考答案（Unit 15-Unit 26）