Question

think，think of，think about，think over的区别和用法

Answer 1

think想，想象
think of 考虑；关心；想起
think about 考虑；研究、思考
think over 仔细考虑
1、think about 和 think of 这两个短语表示“考虑”、“对……有某种看法”时，可以互换。例如：

Don't think of（about）me any more．不要再考虑我。
They're thinking about（of）buying a new car．他们正在考虑买一辆新车。
What do you think of（about）the film？你认为那部影片怎么样？

2、 think of表示打算、想出、关心等意义，一般不与think about 互换。

Helen，are you thinking of marrying Tom？海伦，你打算和汤姆结婚吗？
Who thought of the idea？谁想出的这个主意？
Lei Feng was always thinking of others．雷锋总是为别人着想。
I can't think of his name．我想不起他的名字。

3、think about表示经常思考、研究的意思，一般不和think of换用。

I often thought about what you said．我常常想到你说过的话。
I'll think about your suggestion，and give you an answer tomorrow．我要考虑一下你的建议，明天给你答复。

4、think over 意为“仔细考虑”。

Think over，and you'll find a way．仔细考虑一下，你就会有办法的。
We need several days to think this matter over．我们需要几天的时间把这件事情仔细考虑一下。

Answer 2

think单独使用时表示“思考”，接that宾语从句时意为“认为、觉得”。如：
He is thinking how to work out the problem．他在思考如何解这道题。 I think I'll take it．我想我会买。
当think后面的宾语从句含有否定意义时，通常形式上否定 think，但意义上却是否定宾语从句。如：
I don't think it will rain．我认为不会下雨。
think of意为“考虑到、想到”，后常接代词、名词或动词-ing形式；意为“认为”时，一般用于疑问句中，与what连用。如：
It's good to think of the future．考虑到未来是对的。 He thought of a good plan．他想到一项好计划。
What do you think of the play？（＝How do you find ／like ／enjoy the play？）你觉得这部戏剧怎么样？
think about可接名词、动词-ing形式或由疑问词引导的不定式或宾语从句，表示“考虑„„”。如：
He's thinking about a problem．He has thought about it for a long time．他正在考虑一个问题，他已经考虑了很长时间了。
Please think about how to tell her the bad news．请考虑一下，如何把这个不幸的消息告诉她。
He carefully thought about what I said．他仔细考虑了一下我所说的话。 think over意为“仔细考虑”，后接名词或代词作宾语。当后接代词时，应把代词放在over之前。如：
Let me think it over．让我好好想一想。
Please think over what I have said．请仔细考虑我说的话。 think of 考虑；关心；想起 think about 考虑；思考
think over 仔细考虑
这里有些我做家教的参考资料，你可以了解一下： think about和think of这两个短语表示“考虑”、“对„„有某种看法”时，可以互换。例如：
Don't think of（about）me any more．不要再考虑我。
They're thinking about（of）buying a new car．他们正在考虑买一辆新车。 What do you think of（about）the film？你认为那部影片怎么样？ think of表示下列意义时，一般不和think about换用： ①想要；打算。例如：
Helen，are you thinking of marrying Tom？海伦，你打算和汤姆结婚吗？ ②想出；想到。例如：
Who thought of the idea？谁想出的这个主意？ ③关心；想着。例如：
Lei Feng was always thinking of others．雷锋总是为别人着想。 ④想起；记得。例如：
I can't think of his name．我想不起他的名字。 think about表示“回想过去的事情”、“考虑某计划是否切实可行”时，一般不和think of换用。例如：
I often thought about what you said．我常常想到你说过的话。
I'll think about your suggestion，and give you an answer tomorrow．我要考虑一下你的建议，明天给你答复。 think over意为“仔细考虑”。例如：
Think over，and you'll find a way．仔细考虑一下，你就会有办法的。 We need several days to think this matter over．我们需要几天的时间把这件事情仔细考虑一下。