定语从句是英语语法中最难学的语法之一，如何才能更好地巩固或学习定语从句呢？不妨来做点练习加深印象。

好了，小编不废话了，赶紧开始做下面的测试题吧！！

1.By serving others, a person focuses on someone other than himself or herself, __________ can be very eye-opening and rewarding.

A. who

B. which

C. what

D. that

答案：B。

解析：which在此引导非限制性定语从句，which在定语从句中用作主语，表示前面所提到的情况。

2.Women __________ drink more than two cups of coffee a day have a greater chance of having heart disease than those __________ don’t. 

A. who; 不填

B. 不填; who

C. who; who

D. 不填; 不填

答案：C。

解析：两空均填who，引导定语从句。由于两个who在定语从句都是用作主语，所以不能省略。 

3.We saw several natives advancing towards our party, and one of them came up to us, __________ we gave some bells and glasses. 

A. to which

B. to whom

C. with whom

D. with which

答案；B。

解析：to which在此引导非限制性定语从句，其中的to与句中的动词give搭配。

4.By serving others, a person focuses on someone other than himself or herself, __________ can be very eye-opening and rewarding.

A. who

B. which

C. what

D. that

答案：B。

解析：which在此引导非限制性定语从句，which在定语从句中用作主语，表示前面所提到的情况。

5.Today, we’ll discuss a number of cases __________ beginners of English fail to use the language properly. 

A. which

B. as

C. why

D. where

答案：D。

解析：where在此引导定语从句，修饰先行词cases，where的意思相当于in which。类例：There are cases where the word “mighty” is used as an adverb. 在一些情况下，mighty一词可用作副词。

以上就是本期的英语语法定语从句引导词的巩固测试题。每天练习一点，坚持就有成果。加油练习吧。