概要：初学者在使用定语从句时，有个经常犯的错误就是分不清是定语从句还是其他从句。请看下面的题目：—Is this room __________ he lived in last year?—Is this the room __________ he lived in last year?A. that, that B. the one, the one C. that, the one D. the one, that此题应选D。容易误选A。为了便于分析，我们先将以上两句还原成陈述句(注意is的位置)。如：(1)This room is _________ he lived in last year.(2)This is the room ________he lived in last year.第(1)句填the one, 用作表语，其后的 (that) he lived in last year是用以修饰the one 的定语从句。此句若直接填that, 则不是定语从句(因为没有先行词)，而是表语从句。但是由于引导表语从句的that不能充

初学者在使用定语从句时，有个经常犯的错误就是分不清是定语从句还是其他从句。请看下面的题目：

—Is this room __________ he lived in last year?

—Is this the room __________ he lived in last year?

A. that, that B. the one, the one C. that, the one D. the one, that

此题应选D。容易误选A。为了便于分析，我们先将以上两句还原成陈述句(注意is的位置)。如：

(1)This room is _________ he lived in last year.

(2)This is the room ________he lived in last year.

第(1)句填the one, 用作表语，其后的 (that) he lived in last year是用以修饰the one 的定语从句。此句若直接填that, 则不是定语从句(因为没有先行词)，而是表语从句。

但是由于引导表语从句的that不能充当句了成分，而其后的介词in又缺宾语，所以导致错误。

第(2)句填 that, 它是关系代词，用以引导定语从句(he lived in last year)修饰the room。

请做以下类例试题。如：

(1)—Is this the book _________ you want to buy?

—Is this book _________ you want to buy?

A. that, that B. the one, the one C. that, the one D. the one, that

(2)—Is this room ___________ he lived in 5 years ago?

—Is this the room __________ he lived in 5 years ago?

A. that, that B. the one, the one C. that, the one D. the one, that

答案：(1) C (2) D