定语从句的一道练习题

He failed in the examination, __________ made his father very angry.
A. which
B. it
C. that
D. what
我选的c，答案是A，它们有什么区别？

此为非限定性从句，不能用 that修饰，而用which

典型例题

　　1）Alice received an invitation from her boss, ___came as a surprise.

　　A. it　B. that　C. which　D. he　

　　答案C. 此为非限定性从句，不能用 that修饰，而用which.，it 和he 都使后句成为句子，两个独立的句子不能单以逗号连接。况且选he句意不通。

　　2）The weather turned out to be very good, ___ was more than we could expect.

　　A. what　B. which　C. that　D. it　

　　答案B。

　　which可代替句子，用于非限定性定语从句，而what不可。That 不能用于非限定性定语从句，it不为连词，使由逗号连接的两个句子并在一起在英语语法上行不通。

　　3）It rained hard yesterday, ____ prevented me from going to the park..

　　A. that　B. which　C. as　D. it　

　　答案B.

这道题强调的是哪一次考试让他爸爸很生气，重点是哪一次。

如果填that则表现不出这个重点，而且that可以省略不计

which可以引导非限制性定语从句 that不能

A

前面有逗号，为非限制性定语从句，用WHICH引导