限定性定语从句和非限定性定语从句区别与用法

1、限制性定语从句和非限制性定语从句, 限制性定语从句对先行词起限制、确定的作用，是先行词不可缺少的定语，如果省去，主句的意思就会不完整，不明确或不合逻辑。这种定语从句和主句之间不能用逗号隔开。,_,_,the man who came here yesterday has come again. 关系副词when和why用于引导限制性定语从句时，在口语和非正式文体中可以省去，但是where通常不可以省去。如：,a. be sure to call on us next time (when) you come to town. b. this is one of the reasons (why

2、) you may like to eat it., 非限制性定语从句和先行词关系松散，只是对先行词作附加说明，如果省去，主句的意思仍然完整或清楚。这种定语从句和主句之间须用逗号隔开。如：,a. abraham lincoln, who led the united states through these years, was murdered on april 14, 1865. b. he sent a special governor, a man named gessler, who would rule with a firm hand.,_,_,c. he lives in an

3、other town, which is only about an hours ride from here. d. soon they arrived at a farmhouse, in front of which sat a small boy. e. they set up a separate state of their own, where they would be free to keep negroes as slaves. 注意：引导非限制性定语从句的关系代词不可用that，指人时用who(主语),whom(宾语)，指物时须用which.,practice a,请区分

4、出下列句子哪些是限制性定语从句，那些是非限制性定语从句： the teacher told me that tom was the only person that i could depend on. his mother, who loves him very much, is strict with him. china is a country which has a long history. china, which was founded in 1949, is becoming more and more powerful.,practice b,区分下列几组句子的不同含义： 1. her brother who is now a soldier always encourages her to go to college. her brother, who is now a soldier, always encourages her to go to colle