2015年成人高考专升本英语复习资料-词汇和语法复习:定语从句2

4)非限定性定语从句 非限定性定语从句中不能用关联词that.修饰人时用who， whose， whom; 修饰物时用which， whose;修饰地点和时间的名词，且作状语时分别用where， when.如：
　　Water， which is a clear liquid， has many uses.
　　Our guide， who is a Chinese ， is an excellent cook.
　　They will fly to Boston， where they can plan to stay for four days， and then go to New York.
　　He picked up the book， the cover of which had been torn.(tear-tore-torn 撕裂、撕碎)
　　He is our English teacher， whose wife is a manager in a big firm.
　　非限定性定语从句还可以修饰整个句子，关联词只能用which.
　　The activity was postponed， which was exactly what we wanted.
　　They have invited me to attend the party， which is very kind of them.
　　限定型定语从句，如果修饰物并做宾语，前面又有介词，只能用which. 但是如果定语从句修饰的是不定代词，或是only，very以及形容词最高级，只能用that.在非限定性定语从句中修饰物只能用which，修饰人只能用who.如果非限定性定语从句修饰整个句子，关联词只能用which.
　　as 也可以引导定语从句，多和such连用。如：
　　Boy as he was， he was chosen king.
　　He was in such a fury as I have never seen.
　　Let's discuss only such questions as concern everyone of us.