speak讲语言 talk交谈,聊天 talk to sb/talk sb about sth speak强调说的动作,不强调所说的内容 。作及物动词时,常以某种 语言作宾语。作不及物动词时,常见的搭配形式有: speak of something/somebody谈到某事(某人)speak to sb 跟某 人讲话,此外speak还可用于在较为正式的场合了表演讲或演说。 Can you speak Japanese? 你会说日语吗? She is speaking to her teacher. 她正在跟她的老师说话。 He spoke at the meeting yesterday. 他昨天在会上讲了话。 talk 一般为不及物动词,意思是“交谈,谈话,着重强调两具之间的 相互说话。 eg: She is talking with Lucy in English. 她正在和露茜用英语交谈。 What are you talking about? 你们在谈论什么? The teacher is talking to him. 老师正在和他谈话。参考资料:http://zhidao.baidu.com/question/31941747.html