高中英语语法疑问(定语从句)定语从句中什么情况下关系代词(前面不加介词)可以代替关系副词原题:He came at a time when we needed help.可以写成:He came at a time which/that/可省略 we needed help.

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高中英语语法疑问(定语从句)定语从句中什么情况下关系代词(前面不加介词)可以代替关系副词原题:He came at a time when we needed help.可以写成:He came at a time which/that/可省略 we needed help.

高中英语语法疑问(定语从句)定语从句中什么情况下关系代词(前面不加介词)可以代替关系副词原题:He came at a time when we needed help.可以写成:He came at a time which/that/可省略 we needed help.
高中英语语法疑问(定语从句)
定语从句中什么情况下关系代词(前面不加介词)可以代替关系副词
原题:He came at a time when we needed help.可以写成:He came at a time which/that/可省略 we needed help.为啥可以这样写呢 写细些 呵呵

高中英语语法疑问(定语从句)定语从句中什么情况下关系代词(前面不加介词)可以代替关系副词原题:He came at a time when we needed help.可以写成:He came at a time which/that/可省略 we needed help.
1.关系代词有主格,宾格和所有格之分,并有指人与指物之分.在限定性定语从句中,that 可指人也可指物,见表:
主 格 who ,which ,that
宾 格 whom ,that,that
所有格 whose ,of which/whose,of which/whose
but,as,than作特殊的关系代词可引导定语从句
2.关系副词 when,where,why,how
3.在口语中that可以充当关系副词,代替when,why,how,只有先行词是the
place时,才可代替where.
This is the place where(that) I first met her.

关系代词有5个,分别是who, whom ,whose, which, that.
关系副词有3个,分别是when,where, why.
关系代词和关系副词是不能互换的。

这个…怎么会替代呢?关系代词和关系副词是不一样的词啊嘿嘿~是不可以替代的~
比如关系副词里why 问“为什么”呢,怎么可以用who that which来换呢~

定语从句中先行词如果在句子中作状语,则应用关系副词引导定语从句,这一句中后面的定语从句中need不缺宾语,when在句子中充当时间状语,故只能用when