关于which的语法This problem is which the teacher explained yester

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/07 07:12:40

关于which的语法
This problem is which the teacher explained yesterday 这句话有语法错误吗?

不正确.
看样子你用了which引导的定语从句,但是你的主句不完整,只有主语This problem和表语is,因为be动词不能单独作谓语,所以你的句子不正确.
要想使用定语从句,你的主句里必须有定语从句所修饰的那个词,即先行词.
可以说：This is the problem which / that the teacher explained yesterday.
这就是昨天老师解释过的那个问题.
再问：这个句子不能算是表语从句吗
再答：在表语从句中，which表示“哪一个”之意。which只有在定语从句中才不翻译为“哪一个”。表语从句不是这样的。例如： I would like to go there with you. The problem is that I am too busy now. 我想和你一起去那里。问题是我现在很忙。这个表语从句不少成分。 I am too busy now. 是个主系表结构的完整句子。你的句子中the teacher explained yesterday 中少了宾语。所以不能看作是表语从句。

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