本文目录
定语从句是英语语法中的重要部分之一。它是用来修饰名词或代词的，以进一步描述名词或代词的性质、特征或状态。在英语中，定语从句一般由以下几类词来引导：
1.关系代词
关系代词包括who, whom, whose, which, that等，在定语从句中作为主语、宾语或所有格。
例如：
- The girl who is sitting next to me is my sister.
- The book that I borrowed from the library is very interesting.
2.关系副词
关系副词包括where, when, why等，它们在定语从句中作为地点、时间、原因等方面的修饰语。
例如：
- The city where I was born is very beautiful.
- The day when we met was unforgettable.
3.介词+关系代词/关系副词
在定语从句中，介词+关系代词/关系副词的结构可以用来表示时间、地点、方式等。
例如：
- The restaurant in which we had dinner last night was very expensive.
- The reason why she didn't come to the party is still unknown.
4.不定式
不定式在定语从句中可以作为一个定语修饰名词或代词。
例如：
- I have a friend to whom I always turn for help.
通过以上几类引导词的学习，我们可以更好地理解和运用定语从句，使我们的英语表达更加准确、流畅。
