Unit 9 I like music that I can dance to.Grammar & Writing 1. 定义：在复合句中，修饰某一名词或代词的从句叫做定语从句。 eg: She prefers friends who are outgoing. I still remember the summer holiday that we spent together. 2. 先行词：被定语从句修饰的名词或代词叫先行词。GrammarGrammar定语从句定语从句 3. 关系词：引导定语从句的词叫关系词。关系词包括关系代词和关系副词。关系代词有 that, which, who, whom, whose ；关系副词有 where, when 等。 关系词有三个作用： (1) 引导定语从句； (2)代替先行词； (3) 在定语从句中充当一个成分。引导定语从句的关系代词： 成分先行词主语宾语定语人who/thatwho/whom/thatwhose ＝of whom物which/thatwhich/thatwhose ＝of which1.who 指人，在定语从句中作主语。 The boys who are playing football are from Class One. 踢足球的那些男孩是一班的。2.whom 指人，在定语从句中充当宾语，可省略。Mr Lin is just the man (whom) I want to see.林老师正是我想见的人。注意：关系代词 whom 在口语和非正式语体中常用 who 代替，也可以省略。 The man (who/whom) you met just now is my friend. 你刚才见到的那个人是我的朋友。3.which 指物，在定语从句中作主语或宾语，作宾语时可省略。This is the pen (which) he bought yesterday.这是他昨天买的那支钢笔。4.that 指人时，相当于 who 或 whom; 指物时 , 相当于 which。 that 在定语从句中作主语或宾语 , 作宾语时可以省略。Where is the man (that/whom) I saw this morning?我今天上午见到的那个人在哪儿？5.whose 可以指人 , 也可以指物 , 在定语从句中作定语。He has a friend whose father is a doctor. 他有一位朋友，他的父亲是一名医生。6. 定语从句的关系代词只能用 that 而不用 which 的几种情况：(1) 当先行词是 anything ， everything ， nothing (something 除外 ), few, all, none, little, some 等不定代词时，或由 every, any, all, some, no, little, few, much 等修饰时。There is little that I can do for you. 我几乎不能为你做任何事。注意：当先行词指人时，也可以用 who 。Any man that/who has a sense of dut...
