Question

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

Answer 1

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.

Answer 2

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

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。

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?
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。