1.speak in English是用英文讲话,重点是在用英语,倾向于一种状态.speak English是讲英语.给你个例子:He's speaking in English.他在用英语讲话.He does't speak English.他不会讲英语.talk是不及物动词,一般这样用: I talked to him.后面要跟to.Talk的意思是讲话.(从中文意思里也能看出区别)I say :"xxxx" ./I didn't say anything. Say(说)下面一般就是跟说的话.tell是告诉,一般这样用:He told me that xxxxxx.speak 一般和讲的语言搭配,比如讲英语.另外...