no matter how no matter what 都是连词,不能引导从句. 而however是副词,也不能引导从句.whatever可以引导名词性短语
) "no matter +疑问词" 或"疑问词+后缀ever" No matter what happened, he would not mind。 Whatever happened, he would not mind。
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。 （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。
答：这两个表达方式在大多数情况下可以互换，但是因为whatever带有名词性质，所以如果在句中充当主语、宾语从句引导词时，就只能用whatever。在该句中what...详情>>
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