赖世雄教你学英语语法
关系词
1-11：限定修饰的形容词从句可简化为分词短语
限定修饰的形容词从句中，若关系代词为主语时，该形容词从句可简化为分词短语。法则如下：
(1)删除该关系代词；
(2)之后的动词变成现在分词；
(3)若动词为be动词，变成现在分词being之后，可将being省略。
例：the girl who danced here yesterday is my sister.
=the girl dancing here yesterday is my sister.
（昨天在此跳舞的女孩是我妹妹。）
who is that boy that is standing over there?
=who is that boy standing over there?
（站在那边的男孩是谁？）
i like the car which is parked in front of the post office.
＝i like the car parked in front of the post office.
（我喜欢那辆停在邮局前面的车子。）