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英文语法:which能否引导同位语从句

2020-03-27 01:48阅读：

http://blog.sina.cn/dpool/blog/u/2064859323

英文语法: which能否引导同位语从句
 Source: Zhihu
(prepared by: alexcwlin; edited by: Adam Lam)
Question:
which到底能不能引导同位语从句?
很多人说不能，包括有些参考书上都这么说。那么怎么解释 I have no idea which one I should buy. 这种句子? 这难道不是which引导的同位语从句吗？总不能硬说是定语从句吧，很明显这里which并不是指代idea的，而是在从句里作one的定语，语法上完全可以用what来替代which one 变成 I have no idea what I should buy. 所以，which 到底能不能引导同位语从句?
alexcwlin comments:
Your question is: Can “which” introduce an Appositive (同位语) Subordinate Clause (从句
)?
The answer to that question is “Yes”.
That is, “which” can introduce an Appositive Subordinate Clause?
By definition, an Appositive is a Noun Phrase or Noun Clause which renames the Subject. (https://parentingpatch.com/appositive-english-grammar/)
An example of an Appositive Clause in a sentence at https://englishsentences.com/appositive-phrase/ is: “The dog, who loved popcorn, could often be spotted at the fair.” Both “who” and “which” are Relative Pronouns introducing clauses.
I would like to point out that the Clause “which one I should buy” in your quoted example “I have no idea which one I should buy” is not an Appositive Clause. It doesn’t “rename” the Object “idea” (which would make it an Appositive Clause). It’s an Adjectival Clause which tells more about the “idea”.
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英文语法:which能否引导同位语从句

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