【问】 It was raining，____was a pity.
 A. what B. that
 C. the which D. which(Nelson，300)
 which所修饰的中心词是什么?
 【答】 一般的定语从句都是修饰名词的。Snakes which are poisonous should be avoided.(应当避开有毒的蛇。)这种定语从句叫做adnominal relative clause(修饰名词的定语从句)。象上面试题中的which从句与此不同，它的中心词并不是一个名词或一个名词短语，而是前面的整个主句或主句的一部分，有时甚至是一连串的句子，这样的定语从句叫做sentential relativeclause(修饰句子的定语从句，此时的which相当于and that)：
 1. He invited us to dinner，which was very kind of him. (Eckersley)
 他邀请我们去吃饭，他真是太好了。
 2. He changed his mind，which made me very angry. (LDCE)
 他改变了主意，这使我很生气。
 3. She has married again，which was unexpected. (CGEL)
 她又结婚了，真出人意料。
 4. He said that he had never seen her before，which was not true. (PEG) (which不是指整
 个主句，而是指宾语从句he had never seen her before)
 他说他以前从没见过她，这不是真的。
 5. They say he plays truant，which he doesn't. (CGEL)(which指he plays truant)
 他们说他爱逃学，但他并没有那么做。
 6. I said nothing，which made him still more furious. (PSA)
 我什么也没有说，这使他更加愤怒。
 7. They dislike John， and that's not surprising...
 They dislike John，which is not surprising... (CGEL)
 他们不喜欢约翰，这一点儿也不奇怪……
 8. Pam didn't go to the show， and that is a pity.
 Pam didn't go to the show，which is a pity. (CGEL)
 帕姆没去看表演，真遗憾。