定语从句【观察】观察下列句子中划线部分的用法,然后加以总结
Thethoughtofgoingbackhomewasallthatkepthimhappywhilehewasworkingabroad
Weheardclearlyeverywordthathesaid
WhenpeopletalkaboutAnhui,thefirstthatcomestomindistheHuangshanMountain
Thefirstthingthatshouldbedoneistogetthemoney
ThisnovelisthesecondbestonethatIhaveeverread
ThisistheverydictionarythatIwanttofind
Alicedescribedinhercompositionsthepeopleandplacesthatimpressedhermost
Whichisthecarthatcausedtheaccident
Iwilltaketheyellowone,whichseemstobethebest
Theoldladyhastwodaughters,whoworkinthesamehospital
AsIexplainedonthephone,yourrequestwillbeconsideredatthenextmeeting
在限制性定语从句中,当先行词指物时,关系词可用which或that,二者常可以互换;但在下列情况中,只能用that,不能用which
①当先行词是all,alot,(a)little,few,much,none,anything,something,everything,nothing等词时或先行词被all,any,no,much,l