Question

一个英语介词+定语从句的问题？

Anthony Jason, ( ) Louis succeeded in the experiment, was a friend of mine.
A.with the help from whom
B.with whose help
答案选B，为什么A不对呢？

Answer 1

Anthony Jason,with whose help
Louis succeeded in the
experiment ,was a friend of mine.
with whose help...experiment 非限制性定语从句，修饰Anthony Jason 。
with the help of 在...的帮助下
所以选A用的介词不对，应该用with the help of whom 。
希望对你有帮助！

Answer 2

A不是不对，只是表达不如B流畅，根据“最佳原则”要选A而已。
事实上，假如没有B，用with the help from whom也能完美地与后面的逗号前的部分一起构成非限制性定语从句，只不过关系代词whom相较B中whose而言有些靠后，且整个短语相较B有些长。

Answer 3

回答如下：
本人认为这两个答案选项都是正确的。介词短语with sb's help (在某人的帮助下) = with the help of sb = with (the) help from sb。
在定语从句中，指代先行词的关系代词作介词的宾语时，介词可以提前，即置于关系代词之前。例如：
1. That is the house which I once lived in.
= That is the house in which I once lived.
2. The house whose windows face south is a clinic.
= The house the windows of which face south is a clinic.
= The house of which the windows face south is a clinic.
3. This is the boy who / whom I spoke about to just now.
= This is the boy about whom I spoke.
注意：关系代词是that / who时，介词不能提前。