引导语：定从的基本概念、主要的关系代词的用法，以及使用的局限，下面是小编为你带来的高一英语定语从句造句，希望对你有所帮助。
一、什么是定语(Attributive) :
a loyal friend 形容词作定语
a woman teacher 名词作定语
a girl with long hair 介词短语作后置定语
falling / fallen leaves 分词作定语
定语从句在句中相当于一个定语的成分起修饰的作用。
二、定语从句的构成：
1)which/that
a. Annawas wearing a hat.
b. Itwas too dirty.
定从： Annawas wearing a hat which/that was too dirty. (主语)
安娜戴了一顶很脏的帽子。
a. The hat was too dirty.
b. Anna was wearing a hat
定从： The hat that/ which Anna was wearing was too dirty.(宾语)
安娜戴着的那顶帽子太脏了。
2). who/whom
a. I meta boy.
b. Theboy can speak three languages.
定从： I met a boy who can speak three languages. (主语)
我见到了一个能说三种语言的男孩儿。
a. Theboy can speak three languages.
b. I met a boy.
定从：The boy whom/ who I met can speak three languages. (宾语)
我见到的男孩儿能说三种语言。
3. whose
a. We saw some people.
b. Their arms had broken.
定从： We saw some people whose arms had broken.
我们看见了一些手臂受了伤的人。
a. The desk belongs to Mary.
b. The leg of the desk is broken.
定从： The deskwhose leg is broken belongs to Mary.
腿坏了的桌子属于玛利。
三、只能使用关系代词that的几种情况。
1. 先行词为all, little, few,much, nothing, something, anything, everything等不定代词时
e.g.There is nothing that I can say
2. 先行词被 all, each, few,much, every, no, some, any 等词修饰时
e.g. I have few books that you needed
3. 先行词既有人又有物时
e.g. He talked about the teachers and schools that he liked
4.先行词被序数词或形容词最高级修饰时
e.g. This is the best composition that I have read.
5. 先行词被the only, the very,the last 等修饰时
e.g. This is the very man that I am looking for.
6. 主句是以who或which开头的疑问句时
e.g. Who is the man that is holding Mary’s hand?
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