whose(＝of

whom或of

which) 人/物 定语 as 人/物/整个主句 主语/宾语 关系

副词 when 时间名词 时间状语 where 通常是地点名词 地点状语 　　Mr. Lee, who gave us a speech yesterday, teaches in Beijing University.

　　李先生，昨天给我们作了报告，在北京大学教书。(作主语，不可换成that)

　　Xiao Wang, whom they often talk about, is going to America next month.

　　他们经常谈到的那个小王下个月要去美国。(宾语)

　　I congratulate my neighbour, whose son has just won the election.

　　我祝贺我的邻居，他的儿子刚刚赢得选举。(定语)

　　We will put off the outing until next week, when we won't be so busy.

　　我们把郊游推迟到下星期，那时我们就不会这么忙了。(时间状语)

　　She is going to spend the summer holiday in Tsingtao，where she has some relatives.

　　她准备到青岛过暑假，在那儿她有一些亲戚。(地点状语)

　　The earth goes around the sun, as we all know.(宾语)

　　众所周知，地球绕着太阳转。

　　即时演练1

　　句型转换(每空一词)

　　①They are all making a journey to Tibet. I have been there three times.

　　→They are all making a journey to Tibet, where I have been three times.

　　②They gave us many books. There is much information we need in them.

　　→They gave us many books, in which there is much information we need.

　　③He has three sons. Two of them are doctors.

　　→He has three sons, two of whom are doctors.

　　④He is from England. Everyone here knows that.

　　→He is from England, as is known to everyone here.

　　⑤Mary was late for class again. That made her teacher very angry.

　　→Mary was late for class again, which made her teacher very angry.

语法点二 as 与 which 引导非限制性定语从句时的区别 　　

关系词 as which 指代 指代整个主句所表达的内容 既可指代整个主句所表达的内容，又可指代主句的一部分