定语 定语是用来修饰、限定、说明名词或代词的品质与特征的。主要有形容词此外还有名词、代词、数词、介词短语、动词不定式（短语）、分词、定语从句或相当于形容词的词、短语或句子都可以作定语。汉语中常用„……的‟表示。定语和中心语之间是修饰和被修饰、限制和被限制的关系。在汉语中，中心语与定语二者之间有的需要用结构助词“的”，有的不需要，有的可要可不要。“的”是定语的标志。名词定语 The boy needs a ball pen.（ball为定语，修饰名词pen）/男孩需要一支圆珠笔。They are women teachers. 形容词定语 she is a beautiful girl. The girl wore a red coat. 数词There are five girls in the classroom. 副词定语 The boy there needs a pen.（there为定语，修饰名词boy）/那儿的男孩需要一支钢笔。 The best boy here is Tom.（here为定语，修饰名词boy）/这里最棒的男孩是Tom。介词短语定语 The boy in the classroom needs a pen of yours. The boy in blue is Tom.（in blue为定语，修饰名词boy）She is a girl from America This is a map of China 非谓语动词做定语不定式定语
He is the first man to climb the mountain. She is the last one to come to the classroom. 1
He made a promise to study hard. I have a chance to go abroad. The ability to express an idea is as important as the idea itself . I will attend the meeting to be held tomorrow. 2.现在分词作定语 He is a teacher teaching English. I know the girl standing under the tree. 3.过去分词做定语 She is an enthusiastic teacher called Mrs. Shen. She showed us some maps borrowed from the school. The students questioned said they were forced to practice the piano. 定语从句 The boy who is reading needs the pen which you bought yesterday. The boy you will know is Tom. There are five boys who will play the game. 定语的位置一般有两种：用在所修饰词之前的叫前置定语，单词作定语时通常放在它所修饰的词之前，作前置定语。 用在所修饰词之后的叫后置定语。短语和从句作定语时则放在所修饰的词之后，作后置定语。定语从句 定语从句，就是用来修饰名词或代词的句子，起到定语的作用，所以叫做定语从句。被修饰的词叫先行词。定语从句需要放在被修饰的词（即先行词）之后。定语从句一般由关系代词,关系副词，来引导。关系词必须放在定语从句之首。定语从句三要素：先行词，关系词在从句中成分，关系词关系代词的使用先行词人 主语 Who/that 宾语 Whom/that/省略 定语 whose 2
