关系副词指代功能指代内容所做成分是否可省略when(=at/in/on/duringwhich)修饰时间thatwhere(=in/at/onwhich)修饰地点whichwhy(=forwhich)修饰原因whowhomwhosewhose在定语从句中作定语,与后面的名词为所属关系
whose多指人,也可指物,指物时可与ofwhich互换使用
Doyoulikethebookwhosecoverisyellow
=Doyoulikethebookthecoverofwhichisyellow
只能用that的情况:(1)限制性定语从句中先行词为all,everything,anything,nothing,none,few,little,some等不定代词指物时
(2)Therebe句型中用that
ThereisabookonthedeskthatbelongstoTom
(3)先行词被序数词或最高级修饰
Thisisthefirstbook(that)hehasread
(4)先行词是who或which引导的主句
Whoisthegirlthatdrovethecar
WhichistheT-shirtthatfitsmemost
(5)当先行词既有人又有物
Theytalkedaboutthepersonsandthingsthattheyrememberedatschool(6)先行词被all,every,no,some,any,little,much,theonly,thevery,thelast,just,right等修饰
I’vereadallthebooksthatarenotmine(7)先行词在主句中作表语时,关系词只用that
ThisisthebookthatIlovebest
注意:并非先行词表示时间或地点时都分别用when或where来引导相应