英语中定语从句的知识点剖析（2）

定语从句

关系副词

有哪些关系副词？where when whywhen: on/in /at/during which，主要作时间状语where: in /on//at/to which,作地点状语why: for which,作原因状语

下面是例句：April 6th is the date when she was born.You should keep the card in a place where you can find it easily.

关于介词+关系代词引导的定语从句有两种点需要注意第一点，有些动词+介词的固定词组不可以把介词拆开如：This is the book which I'm looking for.不能改成下面的句子This is the book for which I'm looking.

第二点，关系代词前介词的确定根据从句动词习惯搭配。I bought a great house on which I spent all my money.这里的on使用，就是根据spent进行的。

根据先行词的习惯搭配I'll never forget the time during which I spent my childhood in the country.这里的during选择则是根据先行词time搭配的。

根据所表达的意思确定The colorless gas without which we cannot live is called oxygen.这里的without则是根据上下文意思选择的。

定语从句和同位语从句可以从两个方面看区别：1.看关系词作不作成分2.看从句表达的意思是不是先行词的内容

比如：The news that our football team won the match was encouraging.The news that we heard on the radio was encouraging.第一个句子，关系词不作成分，就是同位语。