2017年的高考已经结束，对于准高三的同学们来说，高考的战斗号角已经吹响，一轮复习马上就要开始，小编给大家搜集了英语一轮复习需要的定语从句，希望对大家有所帮助哦~

　定语从句(一)

　　一、关系词的用法

　　引导定语从句的关系词(也称为引导词)包括关系代词和关系副词两类。关系词在定语从句中起连接作用，同时代替先行词在从句中充当主语、宾语、表语、定语和状语成分。

　　The work that/which has just been finished is very important.

　　She is the girl who/that lives next door.

　　This is the house whose window broke last night.

　　Tom was late for work again this morning, which made the boss angry.

　　As is known to all, China is the biggest developing country in the world.

　　I still remember the day when (on which) I first came to this school.

　　This is the small village where (in which) he was born.

　　The reason why (for which) he refused the invitation is not clear.

　　注意：

　　①关系代词作宾语时可以省略，但作介词的宾语时不能省略;

　　②关系副词一般可用“介词+关系代词”来代替。

　　二、只能用关系代词that的几种情况

　　1.当先行词既有人又有物时。

　　They are talking about the director and his films that I like best.

　　2.当先行词被序数词或形容词最高级修饰，或先行词本身就是序数词或形容词最高级时。

　　It is the first/best film that I have ever seen.

　　3.当先行词被the only/the very修饰时。

　　This is the only book that is worth reading.

　　4.当先行词是不定代词，或先行词被不定代词修饰时。

　　Have you taken down everything that Mr. Li said?

　　5.当主句是以which或who开头的疑问句时。

　　Who is the man that is standing there?

　　三、只能用关系代词which的几种情况

　　1.“介词+关系代词”结构中指物的关系代词只能用which(指人时用whom)。

　　This is the school in which I studied 10 years ago.

　　2.在非限制性定语从句中指物的关系代词只能用which。

　　The meeting was put off, which was actually what we wanted.

　　定语从句(二)

　　四、“介词+关系代词”引导的定语从句

　　1.介词的选择

　　该结构中的介词可用两种方法来选择：①与定语从句的谓语动词的习惯搭配;②与先行词的搭配。

　　Who is the girl with whom you just shook hands?(根据shake hands with...确定)

　　The room in which we took the photos was very dusty.(根据先行词来确定，即in the room)

　　2.关系代词的选择

　　在“介词+关系代词”结构中，指物时关系代词用which，指人时关系代词用whom，作定语时用whose。

　　This is the pen with which I wrote the letter.

　　The woman to whom I talked just now is my English teacher.

　　This is the boy without whose help I couldn't have passed that difficult exam.

　　3.“不定代词/数词+of which/whom”结构

　　该结构常在定语从句中作主语，说明整体中的一部分。

　　Tom has many books, some of which are from his father.

　　The old man has three sons, two of whom are doctors.

　　4.whose+名词=the+名词+of which/whom=of which/whom+the+名词

　　We saved the boy whose hands were badly injured.

　　=We saved the boy the hands of whom were badly injured.

　　=We saved the boy of whom the hands were badly injured.

　　五、which和as的用法区别

　　当先行词为整个主句时，关系代词用which或as均可，但二者的用法也有区别。

　　1.当先行词前面有the same, such, so, as等词修饰时，关系词常用as。

　　I've never heard such stories as he tells.

　　She is so nice a girl as we all like.

　　2.which通常意为“这，这一点”，as通常表示说话人的态度、看法、解释等，意为“正如，正像”。

　　He sold his bicycle, which surprised me.

　　As we know, smoking is harmful to our health.

　　=Smoking is harmful to our health, as we know.

　　3.which引导的非限制性定语从句一般跟在主句之后，而as引导的从句可在主句前、主句后，也可以在主句中间。

　　I failed again in the match, which was a great pity.

　　As we had expected, he opposed the plan.

　　六、以the way为先行词的限制性定语从句

　　当the way作先行词，定语从句中缺少主语或宾语时，则关系代词选用that/which，作宾语时还可省略;若定语从句中缺少方式状语，则用in which或that引导，也可省略。

　　I don't like the way that/which were taught by our teacher.

　　I don't like the way (that/in which) you talk to me.