定语形容词介词短语非谓语动词短语前置 I have a good friend
后置 I want to do something interesting
后置 The boy in white is my friend
后置 I don’t have a house to live in
修饰名词或代词的成分常译为“…的”句子后置 I like students who like English
定语从句引导词特别情况注意事项先行词是人，用 who先行词非人，用 which宾格 whom用 that 不用 which 的条件用 which 不用 that 的条件无引导词：先行词在定从中作宾语，引导词可省略先行词在定从中作主语，定从谓动单复数由先行词决定one of+ 复数名词，作先行词，谓动用复数the (only) one of, the very/right+ 复数名词，作先行词，谓动用单数作定语的句子，即“…的”可以作名词或代词的定语万能钥匙 that引导词用 that ，不用 which 的条件① 先行词前有最高级修饰；或先行词就是最高级；② 先行词前有序数词修饰；或先行词就是序数词；③ 先行词前有 the only, the right, the last, just, the same, the very 等词修饰；④ 先行词是不定代词 all, everything, one 等词；或先行词前有不定代词修饰时；⑤ 先行词中既有人又有物；⑥ 主句是 which 或 who 引导的特别疑问句；⑦There be 句型中引导词用 which ，不用 that 的条件① 引导词前有介词，如： in which;on which;with whom② 先行词是 that, those不用 that 的条件介词后用 whom ， which ，不用 that中考英语定语
