1. It was obvious that he was very embarrassed.
显然他感到很尴尬。
知识点：it是形式主语，that引导主语从句，that之后的内容是真正的主语。还原为一般句式应该是：His embarrassment was obvious.
2. First of all, hewrote out a long list of all the foods which were forbidden.
首先，他列了一张长长的单子，上面列了所有禁吃的食物。
知识点1：最高级+ of all”结构表示“最……的是”：
1) bestof all 最好的是
2) worst of all 最坏的是
3) most important of all 最重要的是
知识点2：forbid sb. to do sth. 禁止某人做某事→allow sb. to do sth. 允许某人做某事
知识点3：which were forbidden作foods的定语从句。
3. I rang the bell and was not surprised to see that Hugh was still as fat as ever.
我按响了门铃，当看到休仍和往常一样胖时，我并不感到惊奇。
知识点1：ring the door bell 按响门铃
知识点2：as…as ever表示“依旧……”，原句实际上是个省略句式，补充完整应该是：...that Hugh was still as fat as he ever was.
4. He beganhis dieta week ago.
他是一星期前开始节食的。
知识点：表达过去的时间状语a week ago对应过去式began。
