“我长大后想成为一名画家”翻译：I want to be an artist when he grows up；I want to become a painter after I grow up；I want to become a painter in the future；My dream is to become a painter；When I grow up, I want to be a painter。
“我长得像爸爸”中“我”和“像爸爸”是同本质的事物，这只是同质事物的相似点的比较，不是比喻。
比喻句，就是打比方，用浅显、具体、生动的事物来代替抽象、难理解的事物。
比喻句的基本结构分为三部分：本体(被比喻的事物)、喻词(表示比喻关系的词语)和喻体(打比方的事物)。