for what is there that they had not screwed out of him under the torture?这句话中的'for'起什么作用？

for what is there that they had not screwed out of him under the torture?

这不是一个完整的句子，而是一个介词短语：for +名词性从句。what 为 there is 的主语，that they had not screwed out of him under the torture 是 what 的定语。

不过，若是名词性从句，语序有问题，应为 what there is，句末也不该用问号。

for 在这里表示原因或目的，“因为；为了”。

就本句结构而言， for 是多余的。如果去掉 for ，则是一个完整的特殊疑问句：

What is there that they had not screwed out of him under the torture?

还有什么是他们在严刑逼供中没有从他那里逼供出来的?

刘永科 - 教育出版集团英语总顾问 & 英语系列图书主编

擅长：语法理论,语言学,文化背景 | 采纳率 86% | 回答于 2021-03-13 08:16

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