say，speak，tell，talk的区别和用法
speak讲语言
speak to sb about sth
tell告诉
tell sb sth/tell sth to sb
say说
say sth to sb
talk交谈,聊天
talk to sb/talk sb about sth
say ,speak talk 和tell辨析。
▲ say
一般作及物动词用，着重说话的内容，它的宾语可以是名词，代词或宾语从句。
eg: He can say his name.
他会说他的名字。
Please say it in English.
请用英语用。
She`s saying ,Don`t draw on the wall.
她在说“别在墙上画”。
▲ 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。
▲ tell
常作及物动词，意为“讲述，告诉，动词常跟双宾语。
tell sb sth＝tell sth to sb
告诉某人某事。
eg: He is telling the children a story.
他正在给孩子们讲一个故事。
Did you tell her the news?＝Did you tell the news to her?
你把这个消息告诉她了吗？
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