十一、定语从句I. 定语从句起了形容词的作用，在句中修饰一个名词或代词。被修饰的词叫做先行词，引导定语从句的词叫关系词，他的作用一是放在先行词与定语从句中间起了连接作用，二是在从句中担当一个成分，并与先行词保持数的一致。关系词先行词从句成分例 句备 注关系代 词who人主语Do you know the man who is talking with your mother?whom, which 和 that在从句中做宾语时，常可以省略，但介词提前时后面关系代词不能省略，也不可以用 that]whom人宾语Mr. Smith is the person with whom I am workingThe boy (whom) she loved died in the war..whose人或物定语I like those books whose topics are about history.The boy whose father works abroad is my deskmate. that人或物主语，宾语A plane is a machine that can fly.She is the pop star (that) I want to see very much.which物主语，宾语The book (which) I gave you was worth $10.The picture which was about the accident was terrible.as人或物主语，宾语He is such a person a s is respected by all of us.This is the same pen as I lost yesterday. as 做宾语一般不省略关系副 词when时间时间状语I will never forget the day when we met there.可用 on whichwhere地点地点状语This is the house where I was born.可用 in whichwhy原因原因状语I can’t imagine the reason why he turned down my offer.可用 for whichII. that 与 which, who, whom 的用法区别情 况用法说明例 句只用 that 的情况1. 先 行 词 为 all, everything, anything, nothing, little, much,等不定代词时2. 先 行 词 被 all, any, every, each, much, little, no, some, few 等修饰时3.先行词有形容词最高级和序数1.He told me everything that he knows.2.All the books that you offered has been given out.3.This is the best film that I have 词修饰时4.先行词既指人又指物时5.先行词被 the only, the very修饰时6.句中已经有 who 或 which 时，为了避免重复时ever read.4.We talked about the persons and things that we remembered.5.He is the ...
