职称英语考试基础知识名词性从句_职称英语备考指南

职称英语考试基础知识名词性从句

　　定语从句定语从句是在句子中起形容词作用的主谓结构，通常修饰它前面的名词或代词，即它的先行词。定语从句是由关系代词和关系副词引导的。

　　1.关系代词引导的定语从句

　　⑴引导定语从句的关系代词有：who，whom，whose，which，that.

　　⑵关系代词在从句作主语、宾语、定语和表语的作用;当作宾语时，关系代词常常可省略。如：

　　This is the girl youve been looking for.

　　⑶当定语从句所修饰的先行词是人或人格化的动物时，引导词用who，whom或whose;

　　如果先行词是无生命的东西，用关系代词which;而that可用于以上两种情况。

　　The man who robbed you has been arrested. That is the book which cost me twenty dollars. Which还可以指婴儿、动物和表示单数意义的集合名词，如：

　　The baby the nurse brought in was Marys child.

　　⑷关系代词that和which的语法区别当先行词的前面有形容词的最高级修饰时，通常用that而不用which.如：

　　The final match is one of the most exciting football games that I have ever seen.当定语从句所修饰的先行词的前面有all，any，little，only，much等修饰时，或者这些先行词本身就是all，one，little，much，nothing等不定代词时，通常用that而不用which. I am interested in all that you have told me. It seems that is the only thing that we can do now.