一、混淆定语从句与并列句

请看下面两题：

(1) He has two children, and both of _____ are abroad.

A. them B. which C. whom D. who

(2) He has two children, both of _____ are abroad.

A. them B. which C. whom D. who

【分析】第(1)题选A，第(2)题选C。由于第(1)题中用了并列连词and，从而使整个句子为并列句，and后应是一个独立的简单句，所以选A不选C;第(2)题没有并列连词and，both of whom are abroad为非限制性定语从句。

二、混淆定语从句与表语(从句)

请看下面的试题：

(1) Your coat is still _____ you left it.

A. where B. there C. there where D. the place where

【分析】答案选A，where引导的是表语从句(=在…的地方)，而不是定语从句。

(2) Is this school _____ your father worked in ten years ago?

A. where B. what C. that D. the one

【分析】答案选D，this school为句子主语，the one 为表语，your father worked in…为定语从句。不要误认为this是句子主语，否则school前应加冠词the。比较：

Is this the school _____ your father worked in ten years ago?

A. where B. what C. that D. the one (选C)

Is this the school _____ your father worked ten years ago?

A. where B. what C. that D. the one (选A)

三、混淆定语从句与状语从句

请看下面的试题：

(1) I went upstairs ______I heard some crying.

A. where B. when C. that D. which

【分析】答案是B而不是A，when的意思是“当…的时候”，引导的是时间状语从句。(upstairs为副词，不宜用作先行词)

(2) He is _____ a clever boy _____ we all like.

A. such, that B. such, as C. so, that D. so, as

【分析】答案应选B，而不是A。such … that …(如此…以致…)用于引导结果状语从句，其中的that不充当句子成分，而such…as…中的as为关系代词，用以引导定语从句并在定语从句充当句子成分。上句中第二空之所以选as，是因为它用作动词like宾语。

四、误加与关系代词同义的人称代词

误：He is a man everyone respects him.

正：He is a man everyone respects. 他是一个人人都敬重的人。