语法
一、形容词性从句的思维方式
- 中文的定语一般放在被修饰的对象之前，结构是：形容词/句子+的；
- 英文中，如果是单个/多个词作定语，也是前置；但是如果定语是一个句子，那么就要将从句后置
- 英语定语从句可以理解为：在被修饰的词之后，添加另一个和它有关系的词，然后再把这个新词放到另一个句子中进行补充说明或逻辑阐述，这里被修饰的词叫先行词，和先行词有关系的词叫关系词。
二、形容词性从句的构成
结构：关系词 + 句子的其他部分
2.1、关系代词
代词类型
that、which、who、whom、whose
代词用法
- 将陈述句中需要替代的词变成关系代词，再把关系代词移到开头就变成了从句
that & which的选用
先行词是唯一，那么关系词就用that
先行词多选一，可以用that/which
2.2、关系副词
副词类型
where、when、why
副词转换为关系代词
- 关系副词 = 介词 + 关系代词which
- This was the place where the rabbit ate the carrot. This is the reason why the rabbit ate the carrot. That was the day when the rabbit ate the carrot for the first time.
- This was the place at which the rabbit ate the carrot. This is the reason for which the rabbit ate the carrot. That was the day on which the rabbit ate the carrot for the first time.
三、形容词性从句的限定性和非限定性
- 非限定性一般是将从句和主句用逗号隔开，他可以对从句的修饰对象进行补充（没有限定作用了）或者对整个句子进行补充
3.1、限定性 VS 非限定性
- The rabbit ate the carrot which was on the table. The rabbit ate the carrot, which was on the table.
- I have a head which is round.我有一个圆的头（其他的可能是方的也可能是扁的） I have a head, which is round.我有一个头，它是圆的
3.2、非限定性定语从句的作用
作插入语
- 直接删除也不影响句意
- 即使先行词是唯一的，也可以用which
- My head, which is big, is useful when it rains.我有大头，下雨不愁
- The biggest carrot, which the rabbit ate, was on the table.
指代整句话
The rabbit ate the carrot, which was not surprising.兔子吃了胡萝不，这事不让人吃惊