定语从句是英语语法中的重要部分，关系副词在其中起着关键作用。常见的关系副词包括"where"、"when"、"why"、"whose"、"whom"和"which"，它们分别用于描述地点、时间、原因、所有权、对象和选择等情况。使用定语从句时，需要注意引导词的使用和位置，以确保句子的正确性和流畅性。
- Where:
The place where we met is now a popular tourist destination. 我们相遇的地方现在已经成为一个受欢迎的旅游目的地。
- When:
I will never forget the day when I first arrived in this city. 我永远不会忘记我第一次来到这个城市的那一天。
- Why:
The reason why she left her job is still a mystery to me. 她离职的原因对我来说仍然是一个谜。
- Whose:
The man whose car was stolen reported the incident to the police. 那个车被盗的男人向警方报案了。
- Whom:
The girl whom I met at the party is a famous singer now. 我在派对上遇到的那个女孩现在成为了一名著名的歌手。
- Which:
The book which I borrowed from the library is very interesting. 我从图书馆借来的那本书非常有趣。
