定语从句是一种形容词从句，在复合句中修饰，限定某一名词、代词或者相当于名词的词组或句子。主要考查引导定语从句的连接词之间用法区别;引导定语从句的连接词与引导其他状语从句的连接词之间用法区别;非限制性定语从句和介词+定语从句的连接词等。 常用引导词链接：被定语从句修饰的名词或代词叫先行词;引导定语从句的词叫关系词。关系词可分为关系代词。如：that， which， who， whom， whose， as等，在从句中作主语，表语、定语、宾语，关系代词作宾语时可以省略;关系副词，如：when， where， why， that等，在从句中作状语。 例12(上海卷). His move won several awards at the film festival, _____ was beyond his wildest dream. A. which B. before C. until D. if 解析：考查定语从句的引导词。分析句子结构可知，此定语从句是非限制性定语从句。排除B和D。由于引导词要在从句中作was beyond his widest dream的主语，排除C。which指代His movie won several awards at the film festival(他的电影在电影节上获得了几项奖)这句话。答案为A。 例13(重庆卷). Human facial expressions differ from those of animals in the degree_____ they be controlled on purpose. A. with which B. to which C. deal D. talk about 解析：本题考查介词的搭配。Degree同to连用。原句可变成：Human facial expressions differ from those of animals in that they can be controlled on purpose。 意为：人类和动物面部表情的不同在于人类可以有意识地控制面部表情的程度。句子中in that=in the degree to which。答案为：B。 例14(江苏卷).He was educated at the local high school, ______he went on to Beijing University. A. after which B. after that C. in which D. in that 解析：考查定语从句“介词+关系代词”，which指代上文内容。答案为：A。 例15(浙江卷). Chans restaurant on Baker Street,______ used to be poorly run, is now a successful business. A. that B. which C. who d. where 解析：考查插入语。Which作为代词，指代前句中的这个饭店，故排除who与where;又因为有逗号隔开，此句为非限制性定语从句，所以排除that。答案为B。 例16(陕西卷). Today, well discuss a number of cases ______beginners of English fail to use the language properly. A. which B. as C. why D. where 解析：考查定语从句。先行词是cases，意思是：情况，状态，指物或指地点，关系词在从句中作状语，用关系副词，先行词指地点，用where。答案为D。
