先看下面这一道题:
He wrote a lot of novels, none of ______ translated into a foreign language.
A. them B. which C. it D. what
同学们看了上面一题的分析后，也许会毫不犹豫地认为此题应选 B，理由是none前没有并列连词 and 或 but，其实这次又错了。此题的最佳选项应是A，注意此句与上面一句有着本质的不同，即此句的 translated 不是谓语，而是一个非谓语动词（过去分词），所以逗号后面其实不是一个完整的句子，而是一个独立结构。假若在 translated 前加一个助动词 was，则此题应选 B(which)，构成一个非限制性定语从句。所以做这类题要特别小心，千万不要想当然，更不要受定势思维的影响。又如：
(1) I met several people there, two of ______ were foreigners.
A. whom B. them C. who D. which
(2) I met several people there, two of ______ being foreigners.
A. whom B. them C. who D. which
第(1)题选A，two of whom were foreigners 为非限制性定语从句；第(2)题选B，two of them being foreigners 不是一个完整的句子，因为句子没有谓语，而只有非谓语动词 being。
