whatever和no-matter-what的区别

nomatterwhat（who，which，when，etc.）与whatever（whoever，whichever，whenever，etc.）的区别：当引导让步状语从句时，两者相同，可以互换，但当引导名词性从句（主语从句，宾语从句，表语从句和同位语从句）时则只能用whatever（whoever，whichever，whenever，etc）。如上面最后两个例句可改为：Howeverpurethewaterlooks,Idonotwanttodrinkit.IwanttomarrythemanIlove,nomatterwhohemaybe.下面句子不能用nomatter结构(nomatter不能引导名词性从句）:Whoevercomesbackfirstissupposedtowintheprize.(主语从句)Iamreadytodowhateveryouwantmeto.（宾语从句）例证：Whateveryoudid,Iwillaccept.为让步状语从句.Iwillacceptwhateveryoudid.为宾语从句.引导名词性从句的连接词可分为三类：连接词：that,whether,if（不充当从句的任何成分）连接代词：what,whatever,who,whoever,whom,whose,which，whichever.连接副词：when,where,how,why