定语从句do you know the reason why he didn't come?why为什么可以用For w

巧克力棒棒棒2022-10-04 11:39:543条回答

定语从句do you know the reason why he didn't come?why为什么可以用For which代替用which的话后面一定
要缺成分,而用why后面则不缺成分.两者不矛盾了吗?

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mercia 共回答了19个问题 | 采纳率89.5%: Do you know the reason why he didn't come?===Do you know the reason for which he didn't come?
语法：
the reason why==the reason for which; 1年前

2005泽泽共回答了11个问题 | 采纳率: Do you know the reason why he didn't come?与Do you know the reason for which he didn't come? 是等价的; 1年前

筱菀蓝笛共回答了46个问题 | 采纳率: 孩子，用why骑士也是缺成分的，缺的是原因状语。如果定语从句的关系前面已经给出for,那后面的从句缺的就是介词for的宾语，因此用which,也就形成了why=for which的这一语法点。为什么给出for缺的就是他的宾语呢？主句的for怎么和后面从句缺的成分扯上关系了？for 不是主句的成分，主句的主谓宾已经全部都有了。它是从句的介词，正常应该是he didn't come for some ...; 1年前

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