would you like是一种固定短语的搭配,口气极为委婉.例如你到饭店里去,服务生会问你：“Would you like a cup of coffee(你想喝一杯咖啡吗?）”或者“What would you like(你想点些什么）?” 回答would you like也需用固定短语：I would like.比如说：“I would like a cup of coffee（我想要一杯咖啡）.” 对于“would he like"的用法是有的,但是这个问题是问“他”而不是直接问回答者（也就是你）,所以没有必要用非常客气的语气,所以这个短语并不被经常使用.当然,"would he like"这个短语在形势和语法上都没有任何错误.
