1. 词性不同，shame是名词，ashamed/shameful是形容词 如：It's a shame to do that. 也可以说 It's shameful to do that. （那么做很可耻）再如 What a shame! （真可惜，真不要脸）Shame on you!（你真不要脸）等，这里的shame不能用shameful/ashamed代替。 2. 意思有所不同，ashamed指主语本身感到惭愧/羞耻，是主观感觉，shameful是指他人或某事可耻，是客观评价 如：I feel ashamed for him. （我为他感到羞耻）或 He is ashamed to have done that. （他为做了那件事而惭愧)What he has done is shameful. （他的所作所为很可耻）Stealing is a shameful thing to do. （偷东西是可耻的行为）