這兩個句子中有共同的名詞books,這樣就可以合寫成一個句子,此時就用到了定語從句的第二個作用:連接兩個具有共同名詞的句子。把第二個句子中的those books替換成能連接兩個句子的關(guān)系代詞which,這樣就能產(chǎn)生了如下這個句子:I have three books, the red of which is my favorite.為了讓整個句子更加緊湊就把of which提到books后面,進(jìn)而形成了剛才的那個句子。
2.表示因果邏輯關(guān)系
【例】America and Americans were prosperous beyond the dreams of the Europeans and Asians whose economies the war had destroyed.
而后面就有對應(yīng)這個句子的考題:The U.S. achieved its predominance after World War II because.
答案:the war had destroyed the economies of most potential competitions.
題干對應(yīng)剛才句子的主句America and Americans were prosperous beyond the dreams of the Europeans and Asians,在表述上進(jìn)行了同義替換,而正確選項就是對應(yīng)whose所引導(dǎo)的定語從句。