人 whom 宾语 物/整个主句 which 主语/宾语 人/物 whose(＝of whom/of which) 定语 人/物/整个主句 as 主语/宾语 时间名词 when 时间状语 常为地点名词 where 地点状语 　　Charles Smith，who was my former teacher，retired last year.(主语)

　　查尔斯·史密斯去年退休了，他曾是我的老师。

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

　　他们经常谈到的那个小王下个月要去美国了。

　　There are many high buildings along the river，where there used to stand rows of trees.(地点状语)

　　沿河有很多的高楼，过去那儿是成排的树。

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

　　众所周知，地球绕着太阳转。

　　[名师点津]　

　　(1)在非限制性定语从句中不能用that来代指人或物，而应当用who/whom指人，用which指物。指人和指物的关系代词在非限制性定语从句中作宾语时也不能省略。指人作宾语时通常用宾格whom，口语中也可用who。

　　(2)非限制性定语从句不能用why引导，常用for which代替why。

　　[即时训练1]　用适当的关系词填空

　　①China Today attracts a worldwide readership，which shows that more and more people all over the world want to learn about China.

　　②The books on the desk，whose covers are shiny，are prizes for us.

　　③We then moved to Paris，where we lived for six years.

　　3．as和which引导非限制性定语从句的区别

　　as，which引导非限制性定语从句指代整个句子

引导词 as which