本文目录
定语从句是英语语法中比较常见的一种句子结构,它可以用来修饰一个名词或代词,增加句子的信息量和表达的精度。在定语从句中,as这个词汇也有着特殊的作用,下面就来总结一下as在定语从句中的用法。
1. as+主语+be动词
这种结构表示“正如……一样”,as在句中作为连接词,引导一个以be动词为谓语的定语从句,修饰前面的主语。例如:
- As Tom is busy, I will go to the party alone.
- As the sun was setting, we reached our destination.
2. as+关系代词
这种结构是as在定语从句中最常见的用法,as作为关系代词引导定语从句,修饰前面的名词或代词,表示“作为……的”。例如:
- He works as a teacher, who is respected by all his students.
- The book, as I mentioned before, is very informative.
3. as+介词短语
这种结构中as作为介词的一部分,引导一个介词短语作为定语从句,修饰前面的名词或代词,表示“作为……的”。例如:
- He is the same person as I spoke to on the phone.
- The city, as we saw from the airplane, was very beautiful.
4. as+形容词/副词
这种结构中as作为副词或形容词的一部分,引导一个以形容词或副词作为谓语的定语从句,修饰前面的名词或代词,表示“如同……一样”。例如:
- The weather is as hot as I expected.
- This hotel is as expensive as the one we stayed in last time.
总结
在定语从句中,as这个词汇具有多种用法,包括as+主语+be动词、as+关系代词、as+介词短语和as+形容词/副词等。熟练掌握这些用法,可以帮助我们更准确地表达自己的意思,使语言更加地精练、流畅。