Jamie is a young cook ________ wants to improve school dinners. (10天津)

　　A. who B. whose C. whom D. which

　　(答案：A)

　　d. whose 作定语,表示所属关系。

　　I like the teacher ________ classes are very interesting and creative. (09兰州)

　　A. which B. who C. what D. whose

　　(答案：D)

　　e. when 作时间状语:When =介词 + which

　　She will never forget the day when (=on which) she was married.

　　f. where 作地点状语 where = 介词 + which

　　I want to know the place where (= in which) I was born.

　　g. why 作原因状语, 其先行词常常是the reason. why = for which

　　That is the reason why(= for which) I’m late.

　　2. 当关系代词在定语从句中作主语时,定语从句的谓语动词形式由先行词定。

　　1. I prefer shoes that are cool.

　　2. I like a pizza that is really delicious.

　　3. 有时只能用 that , 不用 which, 常见的情况有六种：

　　1).当先行词是 all, any, few, little, none, anything, everything, nothing ,或被它们修饰时。

　　That’s all that I know.

　　Is there anything that I can do for you?

　　2).当先行词被形容词最高级或序数词修饰That is the most interesting book that I have ever read.

　　3).当先行词有the very, the only, the same等修饰时。

　　That’s the only thing that I can do now. These are the very words that he used.

　　4).当主句以 who 或 which开头时，定语从句的关系词用 that, 而不用 which 或 who.

　　Who is the girl that spoke to you just now? Which is the pen that you lost ?

　　5).先行词同时包括人或物时，关系词用that.

　　The man and his dog that I always meet are standing by the gate.

　　6).当关系代词在从句中作表语时。

　　China is not the country that it was.