have proven后面为什么能加形容词答:look,sound,taste,smell,seem,appear,prove,keep,remain,continue,become,get,turn等等(参考百度百科'连系动词")3.表语通常是名词,形容词,动词不定式,介词短语或副词,从句来充当.名词作表语:His efforts,however,proved a failure形容词作表语:The medicine proved satisfactory.不定式作表语:Einstein's...