学习一生in which 定语从句
关键是看定语从句中缺少时间状语还是地点状语。以下内容是为您精心整理的in which 定语从句，欢迎参考！
in which 定语从句 1
你的问题中提到的in which是属于“介词+关系代词”型的定语从句.
关系代词在定语从句中做介词宾语时,从句常由介词 + 关系代词（只用 whom /which）引导
The school (that/which) he once studied in is very famous.
= The school in which he once studied is very famous.
Tomorrow I will bring here a magazine (that/which) you asked for.
= Tomorrow I will bring here a magazine for which you asked.
We'll go to hear the famous singer (whom/that/who) we have often talked about.
= We'll go to hear the famous singer about whom we have often talked.
in which 定语从句 2
1.in which可以等于when,也可以等于where,但不会等于why.
关键是看定语从句中缺少时间状语还是地点状语.
2.例如：
1）I'll never forget these days in/during which I stayed with you.
= I'll never forget these days when I stayed with you.
我永远不会忘记我和你待在一起的日子.
其中：in/during which I stayed with you = when I stayed with you
= I stayed with you in/during which = I stayed with you in/during these days
2）This is the city in which I stayed last year.
= This is the city where I stayed last year.
这就是那个去年我待的地方.
其中：where I stayed last year = in which I stayed last year
= I stayed in which last year = I stayed in the city last year.
3.另外,有的in which找不到合适的关系副词代替.
如：I dislike the way in which you treat me.
我不喜欢你对待我的方式.
其中：in which you treat me = you treat me in which
= you treat me in the way
4.for which = why
如：Can you tell me the reason why you were late?
= Can you tell me the reason for which you were late?
你能告诉我你迟到的原因吗?
其中：why you were late = for which you were late
= you were late for which = you were late for the reason
in which 定语从句 3
in which用于定语从句，作关系代词，在句中要做成分
in which用于定语从句，作关系副词，在句中不做成分，in which=where
in which只搜索能用在定语从句中，等于where,在定语从句中作状语。
如：He lived in the house in which tomonce lived.
定语从句中如
This is the room in which we stayed
先行词是room，后的句子是用来修饰room的
但是room不可做stay的成分，因为stay是不及物动词，后不可直接家宾语，所以要有个介词.
其实上述的句子
This is the room which we stayed in.
这里的介词是可以提到which前的
定语从句in which等的用法
in which,forwhich,onwhich,atwhich的不同用法
这些都是定语从句里面，由which引导的定语从句，介词提前。
in which 定语从句 4
which在定语从句中只作主语,宾语,表语,修饰物
when,where在定语从句中只作状语,分别作地点状语和时间状语.
如定语从句中缺少句子成份,即,主,宾或表语缺其中任意一项,先行词又是表物的名词或代词,定语从句的关系词就用which
如定语从句中不缺少句子成份,即,主,宾或表齐全,如先行词为表地点的名词或代词,定语从句就用where,如先行词是表时间的.名词或代词,定语从句就用when引导.
如果是表示地点的词，则要用where（前提：没有介词）
如果是表示时间的，就要用when
如果是表示原因的，如reason就用why
在一定程度上,in which与where是相等的。他们修饰的先行词是表地点的
例如:the house where ilive is beautibul。
=the house in which ilive is beautibul。
若in提前,只能用which,就不能用where。
例如;the house in() ilive is beautibul。
句中的空就不能填where。
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