need
- v.需要;(表示应该或不得不做)有必要;必需;缺少，欠缺
- modal(表示没有必要或询问是否有必要)需要;必须
- n.需要;必须;（食物、钱或生活来源的）短缺，缺乏;特别需要;欲望;迫切要求;需要的事物
复数： needs 过去式： needed 现在分词： needing 过去分词： needed 第三人称单数： needs
needverb
需要；必需
to require sth/sb because they are essential or very important, not just because you would like to have them
Do you need any help?
你需要帮忙吗？
It's here if you need it.
你要的话就拿去吧。
Don't go─I might need you.
别走——我可能要你帮忙。
They badly needed a change.
他们迫切需要一次变革。
Food aid is urgently needed.
迫切需要食物援助。
What do you need your own computer for? You can use ours.
你干吗还要自己买电脑？你可以用我们的。
I don't need your comments, thank you.
谢谢，我不需要你来评头论足。
I need to get some sleep.
我需要睡会儿觉。
He needs to win this game to stay in the match.
他得赢下这场比赛以免被淘汰出局。
You don't need to leave yet, do you?
你不必现在就走吧？
This shirt needs washing.
这件衬衣该洗了。
This shirt needs to be washed.
这件衬衣该洗了。
（表示应该或不得不做）有必要
used to show what you should or have to do
All you need to do is complete this form.
你要做的就是填好这个表格。
I didn't need to go to the bank after all─Mary lent me the money.
我最终还是不必去银行了——玛丽借我钱了。
to be crazy
modal verb
noun
需要；必须
a situation when sth is necessary or must be done
to satisfy/meet/identify a need
满足 / 迎合 / 看出某种需要
There is an urgent need for qualified teachers.
迫切需要合格教师。
There is no need for you to get up early tomorrow.
你明天不必早起。
I had no need to open the letter─I knew what it would say.
我没必要拆开那封信——我知道里面会说些什么。
The house is in need of a thorough clean.
这房子需要来个大扫除。
We will contact you again if the need arises.
如果有必要，我们会再次和你联系。
There's no need to cry (= stop crying) .
不要哭了。
特别需要；迫切要求
a strong feeling that you want sb/sth or must have sth
to fulfil an emotional need
满足感情的迫切需要
She felt the need to talk to someone.
她特别想和人聊聊。
I'm in need of some fresh air.
我很想呼吸一点新鲜空气。
She had no more need of me.
她再也不需要我了。
需要的事物；欲望
the things that sb requires in order to live in a comfortable way or achieve what they want
financial needs
经济上的需要
a programme to suit your individual needs
满足你个人需要的项目
to meet children's special educational needs
满足儿童特殊教育的需要
（食物、钱或生活来源的）短缺，缺乏
the state of not having enough food, money or support
The charity aims to provide assistance to people in need .
这个慈善机构的宗旨是向贫困者提供帮助。
He helped me in my hour of need .
在我生活困难的时候他帮助了我。
if necessary
如果需要，冰箱里总有食物。
There's always food in the freezer if need be.
a great and urgent need for sth
a friend who gives you help when you need it (is a true friend)
These are all words for a cause or an explanation for sth that has happened or that sb has done.以上各词均指事情发生或做某事的原因、理由、解释。
a cause or an explanation for sth that has happened or that sb has done; a fact that makes it right or fair to do sth指某事发生或做某事的原因、理由、解释、正当理由、道理：
He said no but he didn't give a reason.
他说不行，但没有说明原因。
( rather formal ) a good or true reason for saying, doing or believing sth指说、做或相信某事的充分理由、根据：
You have no grounds for complaint.
你没有理由抱怨。
a reason, either true or invented, that you give to explain or defend your behaviour; a good reason that you give for doing sth that you want to do for other reasons指为自己行为所作的辩护、借口、理由：
Late again! What's your excuse this time?
又迟到了！你这次有什么借口？
It gave me an excuse to take the car.
这使我有理由开车去了。
a reason that explains sb's behaviour指动机、原因：
There seemed to be no motive for the murder.
这起谋杀案看不出有什么动机。
(usually used in negative statements) a good reason to do sth（常用于否定句）指必须、需要：
There is no need for you to get up early tomorrow.
你明天不必早起。
( rather formal ) a good reason why sth exists or is done指事物存在或做某事的正当理由：
I can see no possible justification for any further tax increases.
我看不出还能提出什么理由再加税了。
Justification is used to talk about finding or understanding reasons for actions, or trying to explain why it is a good idea to do sth. It is often used with words like little , no , some , every , without , and not any . Grounds is used more for talking about reasons that already exist, or that have already been decided, for example by law. moral/economic grounds |
( rather formal ) a reason for having particular feelings or behaving in a particular way指某种感情或行为产生的原因、动机、缘故：
There is no cause for alarm .
不必恐慌。
( rather formal ) a false reason that you give for doing sth, usually sth bad, in order to hide the real reason指为掩盖做某事（通常为不好的事）的真正理由而找的借口、托词：
He left the party early on the pretext of having to work.
他借口有事要处理，早早离开了聚会。
need
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1
有时用作普通动词，例如：She needs to know (她需要知道)，She doesn't need to know (她不需要知道)。有时 need 用作情态动词，例如：She need know, She needn't know 或更为正式的说法：She need not know。
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2
VERB (为做成某事或正常生活)要求有，必须有，需要
If you need something, or need to do something, you cannot successfully achieve what you want or live properly without it.He desperately needed money...
他迫切需要钱。
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3
VERB (表示某一做法对某事物或地方有益)应该，应当，需要
If an object or place needs something doing to it, that action should be done to improve the object or place. If a task needs doing, it should be done to improve a particular situation.The building needs quite a few repairs.
该建筑有好几处应该修缮。
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4
N-SING 必要;需要
If there is a need for something, that thing would improve a situation or something cannot happen without it.Mr Forrest believes there is a need for other similar schools throughout Britain...
福里斯特先生认为全英国都需要有类似的学校。
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5
MODAL 不必，没有必要(用于告知或建议)
If you say that someone needn't do something, you are telling them not to do it, or advising or suggesting that they should not do it.'I'll put the key in the window.' — 'You needn't bother,' he said gruffly...
“我会把钥匙放在窗户里。”——“不必麻烦了，”他粗声说道。
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6
MODAL (与否定词连用)不必，没有必要
If you tell someone that they needn't do something, or that something needn't happen, you are telling them that that thing is not necessary, in order to make them feel better.You needn't worry...
你不必担心。
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7
MODAL (与否定词连用)准许不做，可以不做
You use needn't when you are giving someone permission not to do something.You needn't come again, if you don't want to...
如果你不想来，可以不用再来。
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8
MODAL (与否定词连用)未必，不一定
If something need not be true, it is not necessarily true or not always true.What is right for us need not be right for others...
对我们来说是对的东西，对别人来说未必正确。
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9
MODAL (与否定词连用)本来不必，本来不需要
If someone needn't have done something, it was not necessary or useful for them to do it, although they did it.She could have made the sandwich herself; her mum needn't have bothered to do anything...
她本来可以自己做三明治的;她妈妈原本不必费心做任何事情。
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10
MODAL (与否定词连用)无需说，不必说
You use need in expressions such as I need hardly say and I needn't add to emphasize that the person you are talking to already knows what you are going to say.I needn't add that if you fail to do as I ask, you will suffer the consequences.
如果你没按我的要求做的话，后果请自负——这话我就不必再说了吧。
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11
MODAL 还需要再说吗;还要我继续说吗
You can use need in expressions such as 'Need I say more' and 'Need I go on' when you want to avoid stating an obvious consequence of something you have just said.Mid-fifties, short black hair, grey moustache, distinctive Russian accent. Need I go on?
五十四五岁，黑色短发，灰色八字胡，明显的俄国口音，还需要我继续说吗？
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12
PHRASE 贫困的;困难中的
People in need do not have enough of essential things such as money, food, or good health.The education authorities have to provide for children in need...
教育主管部门得救助贫困儿童。
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13
PHRASE 有…的需要;有…的必要
If you are in need of something, you need it or ought to have it.I was all right but in need of rest...
我没事，就是需要休息一下。
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14
PHRASE 需要的话;如有必要(英国英语中亦作 if needs be)
If you say that you will do something, especially an extreme action, if need be, you mean that you will do if it is necessary. In British English, you can also say if needs be .They will now seek permission to take their case to the House of Lords, and, if need be, to the European Court of Human Rights.
他们现在将争取获准将案件呈交上议院审理，并且，如有必要，会上诉到欧洲人权法院。
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15
PHRASE 没有必要;不必
You can tell someone that there's no need for them to do something as a way of telling them not to do it or of telling them to stop doing it, for example because it is unnecessary.There's no need to call a doctor...
没有必要叫医生。
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16
PHRASE 没人需要;没谁需要
You can say 'Who needs something?' as a way of emphasizing that you think that this thing is unnecessary or not useful.With apologies to my old history teacher, who needs history lessons?...
这话对不住我亲爱的历史老师，不过有谁需要历史课呢？
noun
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1
- the psychological feature that arouses an organism to action toward a desired goal;the reason for the action;that which gives purpose and direction to behavior
- we did not understand his motivation
- he acted with the best of motives
- Synonym: motivation motive
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2
- anything that is necessary but lacking
- he had sufficient means to meet his simple needs
- I tried to supply his wants
- Synonym: want
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3
- a condition requiring relief
- she satisfied his need for affection
- God has no need of men to accomplish His work
- there is a demand for jobs
- Synonym: demand
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4
- a state of extreme poverty or destitution
- their indigence appalled him
- a general state of need exists among the homeless
- Synonym: indigence penury pauperism pauperization
verb
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1
- have need of
- This piano wants the attention of a competent tuner
- Synonym: want require
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2
- have or feel a need for
- always needing friends and money
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3
- require as useful, just, or proper
- It takes nerve to do what she did
- success usually requires hard work
- This job asks a lot of patience and skill
- This position demands a lot of personal sacrifice
- This dinner calls for a spectacular dessert
- This intervention does not postulate a patient's consent
- Synonym: necessitate ask postulate require take involve call for demand
数据来源：WordNet
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This information is only raw data and will need further analysis .
这些资料只是原始数据，还需要进一步进行分析。
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People need to be satisfied of the need for a new system .
需要使人们明白建立一个新体系的必要性。
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We need to take a different approach to the problem .
我们应该采用另一种方法来解决这一问题。
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Put your hand up if you need more paper .
若有人还要纸，请举手。
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Contact with other people is a basic human need .
和他人接触是人的基本需要。
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We need to evaluate how well the policy is working .
我们需要对这一政策产生的效果作出评价。
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I only need one more card to complete the set .
我只差一张卡片就配齐全套了。
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If you need anything , I am at your service .
您要是需要什么，请尽管吩咐。
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I need time to get my wind back after that run .
我跑过之后需要时间喘口气。
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What do you need your own computer for ? You can use ours .
你干吗还要自己买电脑？你可以用我们的。
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There 's no need for you to go .
你不必走。
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If that is the case , we need more staff .
如果真是那样，我们就需要更多的员工了。
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If that is the case , we need more staff .
如果真是那样，那我们就需要更多的员工了。
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You 'll need to get a suit made to measure .
你得定做一套西装。
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She had no more need of me .
她再也不需要我了。
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All you need to do is complete this form .
你要做的就是填好这个表格。
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We need to look to ways of improving our marketing .
我们得考虑改进营销方法。
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We need to promote an open exchange of ideas and information .
我们需要促进思想和信息的公开交流。
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How much water do you need ?
你要多少水？
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We need to develop a coordinated approach to the problem .
我们需要拿出解决这一问题的协调一致的办法。
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We need to design a new syllabus for the third year .
我们需要为三年级学生制订一个新的课程大纲。
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You need to take the top off the bottle first !
你得先把瓶盖子打开！
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I need time to order my thoughts .
我需要时间梳理一下思路。
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You may need to give the floor a rub-down with glasspaper .
你可能得用玻璃砂纸打磨一下地板。
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All we need is a car and we 'll be in business .
我们所需要的只是一辆车，然后我们就准备就绪了。
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We need to come to some form of agreement .
我们需要达成某种形式的协议。
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I quite understand that you need some time alone .
我很理解你需要独自静一会。
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I need to have my blood pressure taken .
我需要量一下血压。
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There is no need for you to get up early tomorrow .
你明天不必早起。
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We need a clear understanding of the problems involved .
我们需要了解清楚所涉及的各种问题。
既可指需要某事物，也可指需要某人做某事，常可与 need 换用。
Children want/need plenty of sleep.
儿童需要大量的睡眠。
The house wants/needs repairing/to be repaired.
这房子需要修葺。
Do you want/need me to pick you up at the station?
你要我到车站接你吗？
指为成功做成某事而需要某事物，其主语通常为事物，而宾语多为抽象名词。
Success demands persistence.
成功需要坚持。
The task demands professional knowledge.
这项任务需要专业知识。
An important meeting demanded his presence.
一个重要会议需要他出席。
最普通用词，指需要必不可少的东西或需要做某事，强调所需之物或需做之事的重要性。
The children need water and food.
孩子们需要水和食物。
The car needs repairing.
汽车需要维修。
I need to know what time it is.
我得知道现在几点了。
词义同 need，常可换用，但语气较弱。
The mastery of a language requires/needs painstaking effort.
要学好一种语言，必须下苦工夫。
This letter requires/needs to be answered at once.
此信需要立即回复。
These babies require/need careful looking after.
这些婴儿需要细心照看。
- 习语