要明白这两种定语从句,首先得从词性和用法说起。
一、such
1. 形容词:这样的,如此的,用于修饰名词,如:
* He has a single parent, one of many such people in the neighborhood. 他是单亲,这地区附近有许多这样的人。
* He has never dreamed of such wealth. 他从未梦想过这样的财富。
2. 不定代词:象这样的人或物,直接用来作主语或宾语,如:
* He expected difficulties, and such occurred. 预期会有困难,而这样的困难果然出现了。
* Such are the fortunes of war. 这些就是战争的机会。
二、as 用作关系代词指代下面或前面提到的一句话,如:
* The statemant reads in full As follows: ... 声明全文如下: ...
(As 作从句谓语动词 follows 的主语,指代 The statemant reads in full,也可以改写为:The statemant reads in full, which follows: ...)
* As you well know,English is an importan tool in communication. 众所周知,英语是交流的重要工具。(as 是从句中 know 的宾语,指代 English is an importan tool in communication这件事)
三、that 也是关系代词,但是与 as 不同的是它只指代先行词,而不能指代句子(例句略)。
四、明白上述道理,such that 和 such as 的区别就会迎刃而解,如:
* He expected difficulties, and such that could be avoided occurred at last. 预期会有困难,而这种可以避免的困难最终还是出现了。(such 是不定代词,指代 difficulties, 关系代词指代 such)
* He expected difficulties, and such avoided occurred as well know to everyone. 预期会有困难,而众所周知,这样的困难果然出现了。
说得比较罗嗦,不知道能否解决你的问题。
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