定語從句易錯考點：與并列句相混淆

有的定語從句考題為了增加難度和試題的靈活性，通常將定語從句與并列句結合起來考查，此時同學們要特別注意句中是否有并列連詞and, but等。比較：

(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

第(1)題選A，第(2)題選C。由于第(1)題中用了并列連詞and，從而使整個句子為并列句，and后應是一個獨立的簡單句，所以選A不選C；第(2)題沒有并列連詞and，both of whom are abroad為非限制性定語從句。另外，請比較下面一題，由于空格的沒有謂語動詞，而只有非謂語動詞being，所以答案選A(逗號后為獨立主格結構)：

He has two children, both of ________ being abroad.

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