在学习英语语法时，名词性从句是一个非常重要的知识点，而关系词则是名词性从句中的重要组成部分。下面是一个名词性从句关系词表格，以便大家更好地理解和记忆这些关键词。
| 关系词 | 作用 | 例句 | | --- | --- | --- | | that | 指代同一事物 | I believe that he is telling the truth. | | who | 指代人 | The woman who is sitting next to me is my sister. | | whom | 指代人（宾格）| The man whom you met yesterday is my boss. | | which | 指代物 | The book which I borrowed from the library is very interesting. | | whose | 表示所属 | The boy whose father is a doctor studies very hard. | | where | 表示地点 | The city where I was born is very beautiful. | | when | 表示时间 | The day when we met was my birthday. | | why | 表示原因 | I don't understand why he is always late. |
以上就是名词性从句关系词表格，希望对大家学习英语有所帮助。记住这些关键词，并且灵活运用它们，相信你的英语水平会有所提高。
