句型20

which引导的非限制性定语从句(也引导限制性定语从句)

which引导的非限制性定语从句既可以指整个句子内容，也可以指句子的部分内容(如单词或词组等)，在句子中可以作主语、宾语(动词或介词 的)、定语等。注意它在句子中的位置：只能放在主句后，不能放在主句前。表达的内容是"不好的"、"事先没有预料到的"等时，常用which，只指物。

[例句]

Yellowstone National Park, which is in Wyoming, is one of the most beautiful national parks in the world. 黄石国家公园位于怀俄明州，是世界上最美丽的国家公园之一。

The clock, which my grandfather bought, is still in good order. 这时钟是我祖父买的，现在还走时很准。

The picture, for which he paid an enormous amount of money, was a forgery.

那幅画他花了一大笔钱购买，却是幅赝品。

She changed her mind again, which made us all angry. 她又改变了主意，这使我们大家都生气了。

I lived three years in Paris, during which time I learned French. 我在巴黎住了三年，在那期间我学了法语。

The weather turned out to be very good, which was more than we could expect. 天气结果转晴，

这是我们没有预料到的。

(1)、疑问词+ever whatever, whoever, whichever, whenever,

wherever, however用来引导让步状语从句，相当于no matter和what, who, which, when, where, how连用。

[例句]

Whatever (=No matter what) may happen, we shall not lose hope.

无论发生什么事，我们都不能失去希望。

Whatever reasons you (may) have, you should carry out a promise. 无论你有什么理由，你都应该遵守诺言。

Whoever (=No matter who) comes, he will be warmly welcome. 无论谁来，都会受到热烈欢迎。

Whenever (=No matter when) it happened, it was certainly not yesterday.

此事无论发生在何时，但绝不是昨天。

Whenever you (may) call, you will find her sitting by the window. 无论什么时候你去找她，你都会看到她坐在窗边。

Wherever (=No matter where) he went, he made friends with people.

Whichever (=No matter which) of them you many choose, the quality will be the same.

他们当中不论你选哪一个，品质都一样。

However (=No matter how) hard I have tried, I can't find the answer.

(2)、whatever, whoever, whichever, whomever等引导名词性从句，这时不能用no matter+疑问词替换。

[例句]

Take whichever you want. 你要哪个就拿哪个。

We will do whatever we can to help him out. 我们要尽力帮助他摆脱困境。

I'll show you whatever you want to see. 你想看什么我就给你看什么。

Whoever did this job must be rewarded. 无论谁做这件事都要得到报酬。

Whoever walks around in such a heavy rain will catch a cold. 任何人在这种大雨中行走都会患感冒。

You may invite whomever(口语中常用whoever代替)you like to the party. 你可以邀请你喜欢的人来参加晚会。

Take whatever magazines you want to read. 你可以取阅任何你想读的杂志。

倒装结构