形容词性从句：定语从句课件

限制性定语从句前面不用逗号，AnattributiveclauseisusedtomodifyanounorpronouninacomplexsentenceItactsasanattributeAnounorpronounthatismodifiedbyanattributiveclauseiscalledanantecedent(先行词)AwordleadinganattributiveclauseiscalledarelativepronounorrelativeadverbArelativepronounorrelativeadverbfunctionsasasentencememberinanattributiveclauseReferringtoaperson:who(nominativecase)，whose(possessivecase)Referringtoeitherapersonorathing:thatwhen(asanadverbialoftime)where(asanadverbialofplace)why(asanadverbialofreason)定语从句分为：限制性定语从句(restrictiveattributiveclauses)和非限制性定语从句(non-restrictiveattributiveclauses)限制性定语从句与先行词关系密切，否则会影响全句的意思，因此不可缺少，在书面语中用逗号分开，whom(objectivecase)，where等来引导非限制性定语从句，whose(possessivecase)Referringtoathing:which(nominativecase，对它有限制作用，who，Water，因此从句中的关系词不能省略，hasmanyusesIliketalkingwithJohn，一般用which，objectivecase)，而不用that/why来引导非限制性定语从句，在口语中用停顿的方法表示，非限制性定语从句只与先行词有一种松散的修饰关系，whichisaclearliquid(液体)，whoisacleverman1who指人，作主语或宾语(作宾语可省略）ThemanwhoItalkedwithisourteacherApersonwhostealsthings，