Unit9 语法精讲练：关系代词引导的定语从句1.在复合句中，修饰主句中某一名词、名词短语或代词的从句叫定语从句。其中被修饰的名词、名词短语或代词叫先行词，引导定语从句的词叫关系词。I am looking for a little boy who is in a yellow cap. 我在找一个戴帽的小男孩。（boy是先行词；who是关系词，引导定语从句。）2. 关系词在从句中做成分：相当代词用的叫关系代词，相当副词用的叫关系副词。这是小平曾经住过的房子。This is the house which Deng Xiaoping once lived in . ( which 作lived in 的宾语，相当一个代词用，叫关系代词)This is the house where Deng Xiaoping once lived . ( where 作lived的地点状语，相当一个副词，叫关系副词) which和where在此虽然都指the house ，但因在从句中作的成分不同而用法有异。3. 先行词表“人”时，关系代词用who（也可用that），whom（或that），whose ；先行词为“物”时，关系代词可用which或that ；并列的先行词又表“人”或又表“物”时，只能用that 。在从句中作宾语时关系代词可省略。Find the girl who is wearing a green coat . 请找到那个穿绿色上衣的女孩。（先行词为人）The green coat ( which / that ) the girl is wearing is made of cotton . 那个女孩穿的那件绿上衣是棉制的。（先行词为物）I still remember the girl and her green coat (that ) we saw yesterday. 我还记着我们昨天见到的那个女孩和她的那件绿色上衣。I still remember the girl ( whom / that ) we saw yesterday. 我还记着我们昨天见过的那个女孩。Yesterday I saw a girl whose coat was green. 昨天我看见一个穿着绿色上衣的女孩。4. 下列情况只用that不用which ：①先行词被最高级修饰；②先行词被序数词或the last ，the only ，the very修饰；③先行词是不定代词时（如：all ，one ，much ，nothing等）。This is the be |
