你知道定语从句有几种类型吗?下面是小编整理的定语从句的几种类型，欢迎阅读。
(一) 由 who，whom，whose引导的定语从句
student who answered the question was Jack
(二) 由which引导的定语从句
1) which在从句中作主语或谓语动词的`宾语。
e.g.：I found a door which was unlocked.
Where is the book I bought yesterday?
2) which(whom)在从句中作介词的宾语时，介词一般可放在which(whom)之前，也可放在从句原来的位置上，在含有介词的动词固定词组中介词只能放在原来的位置上，而不能放在which(whom)之前。
e.g.：Please tell me from whom you borrowed the English novel. (=Please tell me whom you borrowed the English novel from.)This is the magazine which you are looking for. (look for是固定词组)
(三) 由that引导的定语从句在这种定语从句中that可以指人或物，代替who，whom，which，在从句中作主语或谓语动词的宾语(不能放在介词后面作介词宾语)。
e.g.：Would you like to have lunch at a new restaurant I heard about? (that可省略)但下列两种情况只能用that
1) 序数词或最高级形容词修饰先行词时，要用that. e.g.：The first English novel that I read was A Tale of Two Cities by Charles Dickens.
2) all, everything, nothing, something, anything等不定代词作先行词时，要用that。e.g.：Everything that we saw at the Industrial Exhibition greatly interested us.
(四) 由when, where, why引导的定语从句
I will never forget the day when I arrived in London.
. (五) 限制性定语从句和非限制性定语从句限制性定语从句是句中不可缺少的组成部分，如果没有从句，先行词的意思就不明确，主句也不完整，从句和主句之间一般不用逗号分开。
非限制性定语从句是主句先行词的补充说明，没有从句并不影响主句意思的明确或完整，这种定语从句一般用逗号与主句分开。在非限制性定语从句中通常不用关系代词that。
e.g：He once bought a railway ticket for a woman, which was reported in the newspapers.(which代表主句所述事实)
