青岛2中定语从句课件.pptVIP

定语从句 概念： 担任定语功能的句子称为定语从句。 构成： 定语从句是由先行词、关系词两个主要部分构成的。被定语从句修饰的词被称为先行词，引导定语从句的词被称为关系词，关系词根据其在定语从句中的功能可分为关系代词和关系副词。 ;常用的关系代词有： that, which, who, whom, whose, as 常用的关系副词：where, when, why 一 关系代词的用法 1 who/whom 二者都用于指人 who可作主语、宾语 whom只可作宾语; In this earthquake, the number of people who lost homes reached as many as 250,000. I have many friends who/whom I am going to send postcards. 2 whose 既可指人，也可指物。 作定语。 You are the only one whose advice he might listen to. I’d like a room whose window looks out over the sea. 我想要一个窗朝大海的房间。 ;3 which 指物。 在句中作主语、宾语。 Did you see the mail which came yesterday? New Year’s Eve is a time which I am looking forward to. She heard a terrible noise, which brought her heart into her mouth. 4 that 既可指人，也可指物。作主语、宾语。 All that is needed is a supply of oil. The person that they were looking for was last seen in Fuzhou Road.;注意：关系代词的省略 (1)关系代词在定语从句中作宾语 I have been to the city (which/that) you visited last year. After a score of years, Johnson is not the naughty boy (who/that)he used to be. (2)关系代词在定语从句中作表语;二、关系副词的用法 1 where 在定语从句中作地点状语，代指地点。常可由介词+which取代，如in which, on which, at which, etc. Potato can be grown in places where it is too cold to grow rice.(in which) 2 when 在定语从句中作时间状语，代指时间。 常可由介词+which取代，如on which, in which, during which, etc.;I shall never forget the days when we worked on the farm.(on which) 3 why 在定语从句中作地点状语,可用for which 代替。 I have come around to explain the reasons why I was absent from the meeting.(for which);Have a try;Have a try;考点一：that和which;3. 先行词被the only，the very，the last 修饰时，用that。 e.g. He is the only person that I want to see now. 4. 先行词同时指人和指物时，用that。 e.g. We talked about the things and persons that we saw then. 5. 定语从句内容为解释名词的性质、概念时，需用that。 e.g. A plane is a machine that can fly. 6. 当主句是以who或which开头的特殊疑问句时。 e.g. Who is the person that is standing at the gate?;（二）以下情况，只能用which而不用that 1 引导非限制性定语从句 Football, which is a very interesting game, is played all over the world. 2