考研英语语法精讲之【关系代词】

例如：As we all know, Mr. Wang is a good teacher.

As is known to all, the earth revolves round the sun.

He is tired, as you can see.

As I expected, he didn’t believe me.

As 引导非限定性定语从句时与which的区别：当主句和从句语义一致时，用as;反之，用which。

如：He made a long speech, as was expected.

He made a long speech, which was unexpected.

Tom drinks a lot every day, which his wife doesn’t like at all.

但是，如果从句和主句的动作在将来不同的时间发生，则两部分都要用来将来时，

注：⑤在“介词 关系代词”的结构中，也可用复杂介词，如：by means of (用，依靠)，as a result of (作为结果)等：

例：I have three children, one daughter and two sons, all of whom graduated from the same university .

我有三个孩子：一个女儿、两个儿子，他们都毕业于同一所大学。

The police, in whom I have great confidence, are trying to find out who did it.

我对警察有极大的信心，他们正在努力寻找是谁做的这件事。