介词短语定语
The boy in the classroom needs a pen of yours.（in the classroom 为定语，修饰名词boy；of yours为定语，修饰名词pen）/教室里的男孩需要你的一支钢笔。
The boy in blue is Tom.（in blue为定语，修饰名词boy）/穿蓝色衣服的孩子是汤姆。
There are two boys of 9,and three of 10.（two,three,of 9和of10为定语，修饰名词boy）/有两个9岁的，三个10岁的男孩。
形容词定语
所有的形容词，只要后面加名词，都是定语
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。
It is a ball pen.（ball为定语，修饰名词pen）/这是一支圆珠笔。
There is only one ball pen in the pencil box.（the pencil box为定语，修饰名词ball pen ）/这铅笔盒里只有一支圆珠笔。
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。
不定式定语 The boy to write this letter needs a pen.（ to write this letter 为定语，修饰名词boy）/写这封信的男孩需要一支钢笔。
The boy to write this letter is Tom.（to write this letter为定语， 修饰名词boy）/将要写这封信的男孩是汤姆。
There is nothing to do today.（to do为定语， 修饰名词nothing）/今天没有事要做。
分词（短语）定语
The smiling boy needs a pen bought by his mother.（ smiling为定语， 修饰名词boy；bought by his mother为定语，修饰名词pen）/那个微笑的男孩需要一支他妈妈买的钢笔。
The pen bought by her is made in China.（bought by her 为定语，修饰名词pen）/她买的笔是中国产的。
There are five boys left.（five为定语，修饰名词boy；left为定语，修饰名词boy）/有五个留下的男孩。
