当心这样的定语从句

请看下面一道题：

This is the very work that I must finish _________ her.

A. to help                 B. help                    C. helping                  D. helped

有的同学一看到动词 finish，便断定其后空格肯定填动名词，即断定此题答案选C。其实错了，正确答案应是 A。不错，finish 后接动词作宾语时，该动词要用动名词，而不用不定式，但是本句空格处填的动词help 并不是 finish 的宾语，正确的句子分析是：that I must finish 是修饰名词 the very work 的定语从句，finish 的宾语是引导该定语从句的关系代词 that，其后的不定式 to help her 是目的状语。全句意为“为了帮助她，这就是我们必须要完成的工作。”请再看类似例题：

(1) What the children enjoy _________ to play outside.

A. being                     B. to be                    C. is                          D. are

答案选C，而不选A。what the children enjoy 是主语从句，空格处填的 is 为谓语动词。

(3) What else would you mind _________ money?

A. make                      B. making                 C. to make                 D. made

答案选C，而不选B。动词mind 的宾语是句首的疑问词 what，而不是其后的动词 make；不定式 to make money 用作目的状语。(from www.nmet168.com)

(3) Nothing that he suggested _________ useful.

A. prove                     B. proved                   C. proving                 D. to prove

答案选B，而不选C。句子主语是 nothing；that he suggested 是修饰主语的定语从句，suggested 的宾语是引导该定语从句的关系代词 that，而不是其后的动词；句子谓语是 proved。全句意为“他建议的情况没有一条是有用的。”