小编为考生准备了一道极易出错的陷阱题，请考生自测下自己英语语法的复习情况。

请看下面一题，是考查非限制性定语从句，还是考查……?

He had a lot of friends, only a few of ______ invited to his wedding.

A. whom B. them

C. which D. who

【分析】容易误选 A，认为这是非限制性定语从句。最佳答案是B，这不是非限制性定语从句，而是一个独立主格结构，因为空格后的动词 invited 并不是一个完整的谓语，而是一个过去分词。当然，假若在 invited 前加上助动词 were，则是一个非限制性定语从句，答案便应选A。比较：

(1) They put forward a lot of plans at the meeting, none of _______ carried out in their work.

A. which B. them

C. what D. that

答案选B，none of them carried out in their work 是独立主格结构，其中的 carried out 为过去分词。

(2) They put forward a lot of plans at the meeting, none of _______ were carried out in their work.

A. which B. them

C. what D. that

答案选A，none of them were carried out in their work 是非限制性定语从句，注意与上例比较句中多了一个助动词were。

(3) They put forward a lot of plans at the meeting, but none of _______ were carried out in their work.

A. which B. them

C. what D. that

答案选B，由于两句之间增加了一个并列连词but，使得该句成了一个并列句。

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