文档介绍：
被省略，例如：
His father died the year (that / when / in which) he was 。 He is unlikely to find the place (that / where / in which) he lived forty years 。
推断关系代词与关系副词
方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必需要求用关系代词；而不及物动词则要求用关系副词。例如：
This is the mountain village where I stayed last year.
I\'ll never forget the days when I worked together with you.
推断改错（注：先显示题，再显示答案，横线；用不同的颜色表示出。）
（错） This is the mountain village where I visited last year.
（错） I will never forget the days when I spent in the countryside.
（对） This is the mountain village (which) I visited last year.
（对） I\'ll never forget the days (which) I spent in the countryside.
习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。
方法二： 精确推断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。
this museum ___ you visited a few days age?
one
this the museum ____ the exhibition was held.
one
答案：例1 D，例2 A
例1变为确定句： This museum is ___ you visited a few days ago.
例2变为确定句： This is the museum ___ the exhibition was held.
在句1中，所缺部分为宾语，而where, that, on which都不能起到宾语的作用，只有the one既做了主句的表语，又可做从句的宾语，可以省略关系代词，所以应选D。
而句2中, 主、谓、宾俱全，从句部分为句子的状语表地点，既可用副词where，又因 in the museum词组，可用介词in + which 引导地点状语。而此题中，介词on 用的不对，所以选A。
关系词的选择依据在从句中所做的成分，先行词在从句中作主