called 和 be called 都是“叫做 称为…”的意思
但是第一句中是指这个男孩叫tom
而第二句更倾向于 这个男孩被叫做tom 因为有可能这只是大家对他的昵称
更重要的是 called 是最为后置定语在第一句中；而第二句中则是作为被动语态,is 是be动词called 究竟是一个动词呢还是什么？那是说 I am called Tom还是 I called Tom？而且这句话中 I am talking with a girl called Alice. She is very outgoing.(同义句）The outgoing girl who I am talking with is called Alice.上一句怎么没有with a girl is called而下面一句是 with is called Alice？1， I am called Tom 意思是我被叫做tom。这里，called仍是动词，但它是过去分词，就是be+过去分词构成的被动形式。 而 I called Tom，则是指 我给tom打电话，呼叫tom。 call直接就是动词，是过去时态下的过去式形式～2，I am talking with a girl called Alice. She is very outgoing.(同义句）The outgoing girl who I am talking with is called Alice.第一句中，I am talking with a girl为主句，called Alice是作为后置定语修饰 a girl的；第二句中who I am talking with其实是做The outgoing girl的定语从句，所以这句的主语其实是The outgoing girl is called Alice，意思是那个开朗的女孩被叫做Alice，用法也就同The boy is called Tom了