名词从句和副词从句与形容词从句

在三种英语从句中，名词从句与副词从句用得较多，错误也较少。形容词从句用得较少，但却最易犯错，尤其是下列四种错法：

㈠重复形容词中的宾语。例如：

*① The essay which John wrote it yesterday got a good grade.

*② Do you know the name of the man whom the police are looking for him?

在①里的形容词从句中的it和②里的him都是重复的宾语，因为这两个宾语已经由关系代词which和whom接管了。因此，it和him是多余的'，必须去掉。

㈡关系代词或关系副词不对。例如：

*③ This is the dog who ate up the food.

*④ Do you know the time which we must resume work?

③里的关系代词who和④里的which都错。③里的先行词是一种动物，关系代词里which或that才对。④里的先行词是时间，应该用关系副词when才可。

㈢形容词从句修饰的对象不符。例如：

*⑤ Malcolm finished the work and then left the office which was well-planned.

这里的形容词从句which was well-planned，应该修饰名词 the work，不是the office，因此犯了修饰的对象不符之错。最容易的改正方法，是使这个从句紧扣在先行词the work后面，即：

⑥ Malcolm finished the work which was well-planned and then left the office.