1. "in which"可以替換"where"，在定語從句中充當地點狀語。例如：I will never forget the day when I went to university. 改寫為：I will never forget the day in which I went to university. 同樣可以改寫為：I will never forget the day that I went to university. 在這個例子中，when、that、in which都相當于on that day，在從句中作狀語。2. "during which"、"on which"、"in which"、"at which"可以替換"when"，在定語從句中充當時間狀語。例如：I have found a peaceful place where I can study. 改寫為：I have found a peaceful place during which I can study. 也可以改寫為：I have found a peaceful place in which I can study.3. "for which"可以替換"why"，在定語從句中作原因狀語。例如：This is the reason why he was absent. 改寫為：This is the reason for which he was absent.關系副詞的其他用法：1. 在不及物動詞的連接中要求用關系副詞。2. 關系副詞要放在先行詞之后。3. "that"也可代替關系代詞引導缺省代詞句子。在口語中，"that"可以充當關系副詞，代替"when"、"why"、"how"，但是只有先行詞是"the place"時，才可代替"where"。4. 關系副詞有限定用法，指的是關系副詞引導的形容詞子句只修飾先行詞。5. 關系副詞有補述用法，即關系副詞引導的是對等子句而不是形容詞子句，主要用于對主要子句中的不足之處加以補充，前面都要加逗點與主要子句分開。6. "wherever"、"whenever"、"however"是復合關系副詞，表示"不論"，引導一個修飾主要子句里的動詞的副詞子句，可加強語氣或表示讓步。詳情