intotal史上最标准的英语语法之定语从句之非限制性定语从句

2020年11月26日发(作者：詹小楠)
英语语法

第十八节 定语从句之非限制性定语从句

一、 非限制性定语从句通常不能用that引导。如：
1. I like the book, which was bought yesterday.
我喜欢这本书，这是昨天买的。
2. I like the book which / that was bought yesterday.
我喜欢昨天买的那本书。

二、 非限制性定语从句不能用why引导。要用for which代替why。如：
1. I had told them the reason, for which I didn't attend the meeting.
我已经把理由告诉了他们，为此我没有去开会。
2. I had told them the reason why I didn't attend the meeting.
我告诉了他们我不去开会的理由。(限制性定语从句“the reason why...”是常
见搭配。)

三、 非限制性定语从句置于句首时，不能 用which引导。关系代词as引导非限
制性定语从句位置比较灵活，可以放主句前，也可以放主句后 。如：
1. As I expected, he didn't believe me.
正如我所预料的，他不相信我。
2. She heard a terrible noise, which brought her heart into her mouth.
她听到一个可怕的声音，这让她把心都提到嗓子眼了。

四、 非限制性定语从句由“介词+关系代词”引导时，其中的关系代词不能用
as。如：
1. He bought the car for more than $$20,000, with which his father was angry.
他花两万多美元买了这辆车，他父亲对此很生气。
2. I finished my work ahead of time, after which I sat some time reading the
newspaper.
我提前干完了我的活，随后我坐着看了一会儿报纸。