例句呈现
1.Is he the man that / who sells the dog?
2.Do you know the boy whom / who / that I talked withjust now?
3.She was not on the train that / which arrived justnow.
4.What do you think of the photos that / which I tookin the park?
5.The book whose cover is green was lost yesterday.
6.The first place that we visited in Beijing was the Great Wall.
7.It was the largest map that I ever saw.
8.I have read all the books that you lent me.
9.Is there anything else that I can do for you?
10.They talked about the people and things that theyremembered in the old days.
11.Who is the man that shook hands with you just now?
小结归纳
关系代词that,which,who,whom,whose都可以引导定语从句,使用它们时我们应该考虑两点：
1.先行词是“人”还是“物”；
2.关系代词在定语从句中所充当的成分.
首先,当先行词是“人”时：
1) 关系代词在定语从句中作主语时,用that / who,如：句1；
2) 关系代词在定语从句中作宾语时,用whom / that / who,如：句 2.
其次,先行词如果是“物”时：可用关系代词that / which来充当主语或者宾语,如：句3、4.
综上所述,that既可以指“人”又可以指“物”,而which只能指“物”,who / whom只能指“人”；who / that / which 都可以作主语或宾语,而whom只能作宾语；此外,whose 在定语从句中放在某一个名词或代词前作定语,如：句5.特别需要指出的是：当关系代词作宾语时常常省略,而作主语时则不能省略,如：句2、4、6、7、8、9、10中的关系代词可以省略；而句1、3、11中的关系代词不可以省略.
另外,还有一些情况一般只用that引导定语从句：
(1) 当先行词被序数词或形容词的最高级修饰时,如：句6、7；
(2) 当先行词被all,some,any,no,little,much等修饰时,如：句8；
(3) 当先行词是everything,anything,nothing等不定代词时,如：句9；
(4) 当先行词既有人又有物时,如：句10；
(5) 当主句以疑问词who或which开头时,如：句11.
