关系代词与关系副词有什么区别?在宾语从句与定语重句中．

为什么用关系副词where 而不用关系代词that
怎么判断？
Answer:
判断一个定从句用关系代词(that,which,who..)还是用关系副词(where,when,why)要把握以下两点:
1.分析定语从句缺什么成分
A.缺主宾表成分选用关系代词
B.缺状语成分选用关系副词
2.看先行词
拿LZ所给句子来分析,从句不缺任何主干成分,缺状语成分,故得选用关系副词
从句缺不缺主干成分的另一个方法就是关系代词还原法,因为关系代词替代的是前面修饰的先行词并在从句中做主宾表成分,所以根据此点你可以把先行词
"situation"代入从句中的主宾表位置会发现放在哪里都是多余的,故判定缺的是状语,得选用关系副词.在英文中先行词是case, point, situation 等表抽象地点的先行词 ,用where引导定语从句。
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祝 学习进步!如何判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，就必须要求用关系代词；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.
判断改错：
1．This is the mountain village where I visited last year.
2．I will never forget the days when I spent in the countryside.
[答案]
以上两句都是错误的，应改为：
This is the mountain village(which) I visited last year.
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：准确判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。例：
1．Is this museum ________ you visited a few days ago?
A．where B．that
C．on which D．the one
2．Is this the museum ________ the exhibition was held?
A．where B．that
C．on which D．the one
答案：例1 D；例2 A
例1变为肯定句：This museum is ________ you visited a few days ago.
例2变为肯定句：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既作了主句的表语，又可作从句的宾语，可以省略关系代词，所以应选D。
在句2中，主、谓、宾俱全，从句部分缺句子的状语，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作的成分，先行词在从句中作主、定、宾语时，选择关系代词（who, whom, that, which, whose）；先行词在从句中做状语时，应选择关系副词（where地点状语，when时间状语，why原因状语）。

如何判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,就必须要求用关系代词；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.
判断改错：
1．This is the mountain village where I visited last year.
2．I will never forget the days when I spent in the countryside.
[答案]
以上两句都是错误的,应改为：
This is the mountain village(which) I visited last year.
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：准确判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.例：
1．Is this museum ________ you visited a few days ago?
A．where B．that
C．on which D．the one
2．Is this the museum ________ the exhibition was held?
A．where B．that
C．on which D．the one
答案：例1 D；例2 A
例1变为肯定句：This museum is ________ you visited a few days ago.
例2变为肯定句：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既作了主句的表语,又可作从句的宾语,可以省略关系代词,所以应选D.
在句2中,主、谓、宾俱全,从句部分缺句子的状语,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作的成分,先行词在从句中作主、定、宾语时,选择关系代词（who,whom,that,which,whose）；先行词在从句中做状语时,应选择关系副词（where地点状语,when时间状语,why原因状语）.