译林2003课标版《Grammar and usage(1)： Non-restrictive attributive clauses》优质课教案下载

译林2003课标版《Grammar and usage(1)： Non-restrictive attributive clauses》优质课教案下载

关系词的三个作用:

1).连接________。2). 替代___________ 3）成分__________

二、要点总结

考点一：用that不用which的情况？

考点二：以下情况只能用which引导定语从句

1,逗号后面 2,介词后面

考点三：关系代词 as 的用法

1) 直接引导定语从句: 作用相当于which

He was late, as / which is often the case.

2) 与such 连用, 引起定语从句

There are no such writers as you mention.

3) 与same 连用, 引起定语从句

the same … as 表示同一类人或物；

the same … that 指同一个人或物

比较：

...the same pen as I lost.

.. the same pen that I lost.

考点四：as 与 which 的区别

★as 在从句中作主语时，后面常接行为动词的被动语态，如be known， be said，be reported等，

★如从句中行为动词是主动语态，一般要用which作主语。

She has been late again, _______ was expected.

Tom has made great progress, _______ made us happy.

小结：1. which的先行词可以是名词，也可以是句子的一部分或代替整个句子；which从句不能放句首;

2. as 一般代替整个句子, 从句则可以放句首, 句中或句尾, 表示“正如” ，“或像…一样” 。

例如：as is known, as everyone knows ,as is said, as often happens, as you can see, as it is……;当先行词前有as, so, such, the same 修饰时,关系代词常用as。