一、誤認為關系代詞whose只用于修飾人

whose用作疑問代詞時，主要用于指人;但用作關系代詞時，它既可指人也可指物。如：

It was an island, whose name I have forgotten. 它是一座島，名字我忘了。

The factory, whose workers are all women, is closed during the holidays. 這家工廠工人都是婦女，在假期中工廠關門了。

二、混淆定語從句與并列句

請看下面兩題：

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：

He has two children, both of _________ being abroad.

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

此題答案為A，其中的both of them being abroad為獨立主格結構，用作狀語。

請再看一組類似的例子：

1. He wrote a lot of novels, many of _________ translated into foreign languages.

A. it B. them C. which D. that

2. He wrote a lot of novels, many of _________ were translated into foreign languages.

A. it B. them C. which D. that

第1應選B，而不能選C，是因為句中的 translated 是過去分詞(非謂語動詞)，若選C，則該從句無謂語;第2應選C，因為句中有謂語 were translated。比較下面一例：

He wrote a lot of novels, and many of _________ were translated into foreign languages.

A. it B. them C. which D. that

此題與上面的第2題不同，兩句間多了一個并列連詞and，說明這是一個并列句，故應選B，則不能選C。