导语：定语从句，一个简单句跟在一名词或代词后（先行词）进行修饰限定，就叫做定语从句。在主句中充当定语成分。[1] 被修饰的词叫先行词。定语从句不同于单词作定语的情况，它通常只能放在被修饰的词（即先行词）之后。希望大家喜欢!
作文中定语从句
When my firt tep into my univerity , I got atonihed at the beautiful quiet freh choolyard which differed from my high chool o much. And the big change came to the homework , then I eemed to be free of them at all intead of painfully wondering to chooe A or B.
I had much more time for activitie at univerity here. I like book , therefore I went to library frequently. Yet I enjoyed club a well, there I met lot of guy who hare the ame interet. And ometime I went to port centre for exercie.
Life in univerity have appeared atifactory o far , except for my Englih.
限定性定语从句
意义：
限定性定语从句对被修饰的先行词有限定制约作用，使该词的含义更具体，更明确。限制性定语从句不能被省略，否则句意就不完整，例如I met ome one who aid he know you. 在引导限定性定语从句时，that有时相当于in which,at which,for which或on which
（1）Attitude toward daydreaming are changing in much the ame way that(in which) attitude toward night dreaming have changed. 人们对白日做梦的态度正在改变，这与人们对夜间做梦的看法的变化有非常相似之处。WWw.hAOzuowEn.com
（2）I like the muic for the very reaon that(for which) he dilike it. 我出于某种原因喜欢这种音乐，而他恰恰与我相反。
（3）We arrived the day that(on which) they left. 刚好我们到的那天他们走了。
在限定性定语从句中，当关系代词在从句中担任动词宾语时，关系代词可省略。
（1）The book (that/ which) I am reading i very intereting. 我在读的书很有趣。
（2）I there anything (that) you wanted? 想要什么东西吗?