记得学习用as造一个定语从句
as是个比较特殊的关系代词，一是用在某些句型搭配里，二是***于主句之外。如下是给大家整理的用as造一个定语从句，希望对大家有所作用。
（一）在固定搭配as…as, so…as, such…as, the same…as中，as引导定语从句
You may take as many books as you want.
你想要拿多少书就拿多少。（第一个as是副词，修饰many的；第二个as才是关系代词，代替先行词books，在定语从句中作宾语）
I have got such a computer as yours.
我有一台你这样的电脑。（as是关系代词，代替先行词computer，在定语从句中作表语，因为yours后省略了is）
I have never seen so beautiful a place as Guilin.
我从未见过像桂林那样美丽的地方。（as是关系代词，代替先行词place，在定语从句中作表语，因为Guilin后省略了is）
（二）***于主句之外，as引导定语从句
As we know,the earth turns around the sun.正如我们所知，地球围绕太阳旋转。
As is known to us,
（As we know和As is known to us均为定语从句，as分别作宾语和主语，替代后面的主句。）
Taiwan is, as you know, is an inseparable part of China.
你知道，台湾是中国不可分割的一部分。（关系代词as指代整个主句，在定语从句中作宾语。）
as引导的限制性定语从句：用在固定搭配中，如：
He is notthe samemanashe was.(as指代the man作表语, 从句可改写为：he was the man)
You may take as much money as you want.(第一个as是副词，修饰many, 第二个as是关系词，指代money作want的宾语，从句可改写为：you want money)
The world has been changing atsucha high speedasno one has expected.(as指代the high speed作expect的宾语，从句可改写为：no one has expected the high speed.)
as引导非限制性定语从句，指代主句的内容，在从句中作主语或宾语。
The earth,as we all know, goes around the sun.我们都知道，地球绕着太阳转。
As I have pointed out, it is important to include vegetables in our diet.正如我所指出的`，在我们的饮食中包括蔬菜是很重要的。
As we had expected, he changed his mind later.正如我们所预料的，他后来改变了主意。
As is often the case, we have worked out the production plan.像往常一样，我们已经制定出了生产计划。
As is reported in the newspaper,this bank is one of the biggest ones in this city.据报纸报道，这家银行是本市最大的银行之一。
Just as Professor Scotti often puts it, success is ninety-nine percent attitude.正如斯科蒂教授经常说的那样，成功是百分之九十九的态度。 as和which引导非限制性定语从句的区别。
as引导的非限制性定语从句可置于主句前，而which则不能。
We’ll carry your luggage, which means that you can simply enjoy the experience.
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