初中定语从句课堂讲解课件精要.ppt

定语从句 The Attributive Clause 概念:在复合句中修饰名词或代词 的句子. (Attributive clause) Mary is a beautiful girl. Mary is a girl who has long hair. 形容词作定语 句子作定语,修饰girl, 叫做定语从句 先行词 关系词 定语从句 Mary is a girl( who has long hair). 关系代词 关系副词 which, who, whom, whose, that Where, when,why 定语从句的用法: (1)当先行词是物时, 定语从句用which 或that引导. These are the trees (which/that were planted last year.) (2)当先行词是人时, 用who, whom, whose, that引导. He isnt the man (who/that I talked to just now.) 1.代替先行词; 关系词作用 2.它还在定语从句中担任一定的成分: 主语，或宾语; 3. 同时连接先行词与它引导的定语从句 （把主句和从句连起来） 关系词判 断 步 骤 : 首先，要看先行词。 如果先行词是指人,关系代词 可用 who,that,whom,whose。如果先行词指物,关系 代词可用which或that; 然后，要确定关系词在从句中的成分。请看下表 先行词 主格 宾格 所有格 人 who,that who(m),that whose 物 which,that which,that whose,of which 关系代词辨析： 1. 在由who/that引导的定语从句中，who/that作主语或宾语 2. 在由whom引导的定语从句中，whom作宾语 3. 在由whose引导的定语从句中，whose作定语 4.在由which/that引导的定语从句中，which/that作主语/谓语动词的宾语/介词的宾语 (1)定语从句谓语动词和先行词一致. I love the movies (that are interesting.) She is the girl (who wears colorful clothes.) (2)定语从句的时态不受主句的限制。 The woman (who/that spoke at the meeting yesterday) is my mother. 注意事项： (3) 只用that的情况： ?先行词是人和物时，关系代词只用that, They are talking about the people and things (that they met yesterday.) ?先行词是不定代词：all，something，anything等，只用that, There is something (that I want to buy.) ?先行词被one of,the only, the very, the same, the last, little, much, few等词修饰时，只能用that, This is the only boy (that came to the party yesterday). ?先行词被序数词或最高级修饰时，只用that The first letter (that I got from him) will be kept well. ? 句中已经有who/which， 关系词只用that Who is the girl (that is crying)?