when 后面可不可接一个非谓语形式的句子,比如 You must tell me when you leave the
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/10/06 07:55:16
when 后面可不可接一个非谓语形式的句子,比如 You must tell me when you leave there.可不可以说 You must tell me when levaing here.如果可以,那么连词后面都可以接这种类型的句子吗?
可以,when后面可以接现在分词/过去分词等形式,此种现象被称之为状语从句的省略.
具体规定如下:如果状语从句的主语和主句主语相同或状语从句的主语是it,且从句的谓语动词含有be动词,则可以把状语从句的主语和be动词一起省略.
再如:Water can become vapour when (water is) heated.
I met Mike when (I was) walking to school this morning.
You can ask me for help when (it is) possible.
另:不是所有的连词有此用法,一般限于时间状语从句/条件状语从句/让步状语从句的连词如:when/as/while/until/unless/if/though等.
具体规定如下:如果状语从句的主语和主句主语相同或状语从句的主语是it,且从句的谓语动词含有be动词,则可以把状语从句的主语和be动词一起省略.
再如:Water can become vapour when (water is) heated.
I met Mike when (I was) walking to school this morning.
You can ask me for help when (it is) possible.
另:不是所有的连词有此用法,一般限于时间状语从句/条件状语从句/让步状语从句的连词如:when/as/while/until/unless/if/though等.
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