whoever和no matter who有什么区别?还有类似when,how,what.等等

这两个单词意思都一样,都是无论什么的意思 但no matter what只能放在句首,在句中,只能用whatever "no matter +疑问词" 或"疑问词+后缀ever" .例如：No matter what happened,he would not mind.=Whatever happened,he would not mind.不管发生什么,他不在意.替换：no matter what = whatever no matter who = whoever no matter when = whenever no matter where = wherever no matter which = whichever no matter how = however 注意：no matter 不能引导主语从句和宾语从句.(错）No matter what you say is of no use now.（对）Whatever you say is of no use now.你现在说什么也没用了.（Whatever you say是主语从句） （错）Prisoners have to eat no matter what they're given.（对）Prisoners have to eat whatever they're given.囚犯们只能给什么吃什么.