介词及what - 柯帕斯英语网

He was depressed by what he had gone through.

He was depressed by what he had known.

1. 我看到曹老师解答的时候提到what在这种结构中引导的是名词性从句，但没有说是什么类型的名词性从句，请问老师是什么类型的名词性从句呢？之前有老师把第一句分析为“宾语从句”，这种说法对吗？

2. by的词性是介词吗？by what he had known作什么成分呢？

1. 问题句的这种结构可以称为名词性结构，相当于the thing that...不当作从句理解。

2. 问题句为被动语态，by 当然是介词,by 引导的部分作方式状语。《薄冰高级英语语法》是这样解释的。

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擅长：英语 | 采纳率 53% | 回答于 2021-05-22 17:29

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我想问问题。 2021-05-22 17:38

1.He was depressed by what he had gone through. “by what he had gone through”作此句的方式状语从句，"by"后面的“what he had gone through”其实是原来的主语，作用相当于一个名词。

2.是，“by what he had known”作此句方式状语从句。