高一问题as 和 that的用法 什么时候用

来源:百度知道 编辑:UC知道 时间:2024/04/27 15:36:29
This is the same pen ____ I used yesterday. I was looking for it everywhere.
A .WHICH B .THAT C .AS D. /
答案是A
问题一:既然选了which 为什么不能选that ?which和that分别适用于什么情况 觉得他们指代物体时候的地位是同等的 可以互换吗
问题二:对于as的用法一直不清楚 它怎么会引导定语从句呢?

拜托各位高手解决一下 可追分

1. 前面有 the same pen 说明是特指的,所以一定要用 which(一般情况下若是which要跟that互换的话,which前面必须跟个介词才可跟that相等,至于这个介词要根据句子而定)

2.as是关系代词,引导定语从句,在从句中可作宾语、主语或表语
(例如下面的句子)
Many of the sports were the same as they are now. (作表语)
As we know, smoking is harmful to one's health. (作宾语)
My grandmother’s house was always of great importance to me, as my own is.(作表语)

which 用于定语从句,作关系代词,在句中要做成分
that 不做成分