定语从句知识点汇总一、先行词二、关系词1.关系代词：2.关系副词：三、分类1.限制性定语从句：对先行词有限制，区分得作用，并与先行词有着不可分割得关系，不能省略2.非限制性定语从句：对先行词起补充说明得作用，可省略不会影响主句得意思，与主句用逗号隔开3.区别：限制性定语从句非限制性定语从句与先行词关系密切，删除后会影响整个句子意思得表达不用逗号分开可用关系代词 that关系代词可省略（that,which,who 在从句中作宾语可以省略）关系代词可以替代，whom 作宾语时可用who 或 that 替代读时不停顿只可以修饰名词或代词，不可修饰句子4.非限制性定语从句得特别情况4、1 有些既可以做限制性，又可以做非限制性得定语从句，其含义不同There are 20 students in this class who are from the north of China、讨绫聽钗繆众壯。There are 20 students in this class,who are from the north of China、个熱辊雛谢慮辔。5.关系代词 that 与关系副词 why 不能引导非限制性定语从句四、关系词得用法1、which,thatwhich 指物，在从句中作主语，宾语that 指人或物，指人可与 who，whom 互换；指物可与 which 互换2、who,whom从句中得介词提到关系代词词前，whom 作宾语，不能用 who 代替In our class there are 46 students, of whom half wear glasses、扫绠诩跻组蝾歐。先行词为指人得 one,ones,anyone 或 those 时，关系代词用 who；双重定语从句中一个定语从句得关系代词就是 that，另一个指人得关系代词用 who。濼櫛鳇闃鈰渗龅。3.whose表示“……得”。可指人或物。用来指物时，whose+名词=限定词+名词+of which=of which+限定词+名词The house whose windows face south is ours、The house the window of which face south is ours、=The house of which the window face south is ours、缡緝霁悫澇毂荊。4. as作为关系代词可指人或物，在从句中作主语，宾语或表语。一般用于 such、、、as 、the same、、、as 、as、、、as 结构中，表示“像”得意思We have found such materials as are used in their factory、沩傳凑嶗澮順蠅。They felt such heat in the jungle as they had never felt before、弃脹荡凉谟鍤荠。He is not the same man as he was、4、1the same、、、as/that、、、与 such、、...
