(一)关系代词who，whom，whose，which，that引导的定语从句

　　1、The company official _____ I thought would be fired received a raise.

　　A. whom　　B. whoever

　　C. who　　D. of whom

　　(答案：A.关系代词whom在定语从句中做宾语，修饰先行词official)

　　2、The investigation ， _____ will soon be published， was made by John.

　　A. at which the results　　B. the results on which

　　C. whose results　　D. at whose results

　　(答案：C.关系代词whose 在定语从句中做定语。)

　　(二)关系副词 when ，where， why， 引导的定语从句

　　1、The time will come _____ man can fly to outer space freely.

　　A. that　　B. when

　　C. in that　　D. which

　　(答案：B.when在定语从句中做状语。)

　　2、I will never forget the ten years _____ we both spent in the little village.

　　A. when　　B. during which

　　C. which　　D. in which

　　(答案：A)

　　(三)关系代词前带介词的定语从句

　　1、Before her marriage， she spent a considerable time in that very part of Shanghai， _____ she belonged.

　　A. which　　B. to where

　　C. to which　　D. at which

　　(答案：C.关系代词which和whom 还可以做"动词词组"后面的前置宾语。这里的动词词组是belong to.)

　　2、The United States is composed of fifty states， two of _____ are separated from the others by land or water.

　　A. them　　B. that

　　C. which　　D. those

　　(答案：C)

　　(四)非限定定语从句对被修饰的名词起附加说明，或进一步描述或补充。

　　这种从句有一定的独立性，即使去掉，主句的意思仍然完整，只是内容相对地不够具体。与主句之间常用逗号分开，所用的关系代词与限定性定语从句基本相同，但不能用关系代词that 引导。

　　(1)An Old friend from abroad， _____I was expecting to stay with， telephoned me from the airport.

　　A. that　　B. whom

　　C. who　　D. which

　　(答案：B)

　　(2)His brother had become a teacher， _____he wanted to be.

　　A. who　　B. what

　　C. which　　D. that

　　(答案：C.which引导的非限定性定语从句，在从句中做宾语，修饰先行词a teacher)

　　(3)He has made another wonderful discovery， _____of great importance to science.

　　A. which I think it is　B. of which I think it is

　　C. I think which is　　D. which I think is

　　(答案：D.which引导的非限定性定语从句，修饰前面整个句子。)

　　(五)"名词(代词)+介词+关系代词"引出，一般是非限定性定语从句。

　　We've tested three hundred types of boot， _____is completely water proof.

　　A. no of which　　B. none of which

　　C. some of which　　D. neither of which

　　(答案：B."名词(代词)+of+which(whom)"引起的定语从句常表示部分与整体的关系。)