1、意思him的意思是他。例句:Johns aunt died suddenly and left him a surprisingly large sum。约翰的婶婶突然去世了,留给他一笔***。his的意思是他的。例句:Brian splashed water on his face, then brushed his teeth。布赖恩用水冲了把脸,然后刷牙。2、词性不同him是第三人称he的宾格。his则是形容词性物主代词。3、用法不同him在句中作宾语,放在动词或介词之后。例句:I was chatting to him the other day。前几天我和他聊了一阵。his在句子中作物主代词,后接名词。例句:He spent a large part of his career in Hollywood。他的职业生涯中有很长一段时间是在好莱坞度过的。