第一册：lesson thirty one。

原文：Where is Sally?

A:Where is .. B?

B:She is in the garden,A.

A:What's she doing?

B:She is sitting under the tree.

A:Is .. in the garden ,too?

B:Yes ,he is. He's climbing the tree.

A:I beg your pardon? Who's climbing the tree?

B:.. is.

A:What about the dog?

B:The dog is in the gardon too. It is runing across the grass. It is running a cat.

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单词：

climb：爬，攀登。

grass：草，草地。

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知识：b

what about ...?

run after. 追逐。Look, he is running after his Mum.