Just as Mrs Richards was entering the dining room, there was a knock on the front door. She knew that it must be the baker. She had told him to come straight in if ever she failed to open the door and to leave the bread on the kitchen table.

　　7.Just as Mrs Richards was entering the dining room, there was a knock on the front door.

　　理查兹夫人刚刚走进餐厅，前门就传来敲门声。

　　语言点1:句子结构分析:just as引导时间状语从句。There be 句型一般表示“有…”。

　　语言点2:与“门”有关的词汇总结:

　　front door 前门

　　back door 后门

　　side door 侧门

　　gate 大门

　　entrance 入口

　　exit 出口

　　emergency exit 紧急出口

　　8. She knew that it must be the baker.

　　她知道来人一定面包师。

　　语言点:句子结构分析:that引导宾语从句。Must be表示相当肯定的推测。

　　9. She had told him to come straight in if ever she failed to open the door and to leave the bread on the kitchen table.

　　她曾告诉过面包师，如果她不去开门，他可直接进门，把面包放在厨房的桌上。

　　语言点:句子结构分析:if引导条件状语从句。主句中的两个动词不定式短语to come straight in和to leave the bread on the kitchen table都作him的宾语补足语。