need

音标发音

• 英式音标 [niːd]
• 美式音标 [niːd]
• 国际音标 [ni:d]
• 英式发音
• 美式发音

基本解释

• v. 必须，需要；（表示应该或不得不做）有必要
• n. 需要，必须； 特别需要，迫切要求；欲望；（食物、钱或生活来源的）短缺，缺乏；必需品；贫困（或困难）的处境

词源解说

• 直接源自古英语的nied，意为需要，责任，义务；最初源自原始日尔曼语的nauthis，意为暴力，强迫。

同根派生

• adj性质的同根词

  needed：需要的。

  needless：不必要的，不需要的；多余的，无用的。

  needful：必要的；需要的。

• adv性质的同根词

  needlessly：不必要地；无用地。

• n性质的同根词

  needful：必须做的事。

• v性质的同根词

  needed：需要（need的过去式）。

用法辨析

v. (动词)

• need用作实义动词的基本意思是缺少急切需要的东西,强调急需。
• need是及物动词,可接名词、代词、动词不定式、动名词作宾语,也可接以动词不定式或过去分词充当补足语的复合宾语。
• need用作实义动词时,可用于肯定句、否定句、疑问句等各种句式,有动词的全部变化形式。

aux. (助动词)

• need用作情态动词时没有人称、时态及语态的变化,后面须接不带to的动词不定式一起用作谓语,表示“必须,必要”。一般只用于否定句或疑问句中,也可用于含有否定意味的肯定句中。
• need not后可接动词不定式的被动式、进行时及完成时。当接动词不定式的完成式时常表示“做了本来不必做的事情”。

n. (名词)

• need用作名词作“需要,需求”解时,其后常接介词for或of短语作其定语,当表示“责任,必要”时,其后常接动词不定式。
• need的复数形式needs可以表示多种需要。

英汉例句

用作动词 (v.)

用作及物动词: S+～+ n./pron.

• When you need me, just let me know.
  如果要我帮忙,就告诉我好了。

S+～+to- v

• You don't need to leave so early.
  你们不需要走这么早。

S+～+ v -ing

• The clock needs winding once a week.
  这只钟每周上一次发条。

用作宾补动词: S+～+ n./pron. +to- v

• I need you to work for me.
  我需要你为我工作。

S+～+ n./pron. + v -ed

• I need my coat mended.
  我的衣服需要补一补。

用作助动词 (aux.)

• You needn't try to explain.
  你不必解释。

用作名词 (n.)

• I have no need for money.
  我不需要钱。

词组短语

用作动词 (v.)

～+名词

• need clothes 需要衣服
• need education 需要受教育
• need food 需要食物
• need help 需要帮助
• need money 需要钱

英英字典

剑桥英英字典

• (MUST HAVE) to have to have something, or to want something very much
• (MUST DO) to have (to)
• the state of having to have something that you do not have, especially something that you must have so that you can have a satisfactory life

柯林斯英英字典

• If you need something, or need to do something, you cannot successfully achieve what you want or live properly without it.
• Need is also a noun.
• If an object or place needs something done 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.
• If there is a need for something, that thing would improve a situation or something cannot happen without it.
• If you say that someone does not need to do something, you are telling them not to do it, or advising or suggesting that they should not do it.
• Need is also a modal.
• If you tell someone that they don't need to do something, or that something need not happen, you are telling them that that thing is not necessary, in order to make them feel better.
• Need is also a modal.
• You use don't need to when you are giving someone permission not to do something. (need to)
• Need is also a modal. (Need)
• If someone needn't have done something, they didn't need to do it.
• If someone didn't need to do something, it wasn't necessary or useful for them to do it, although they did it.
• 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 need hardly say)(I needn't add)
• Need is also a verb. (Need)
• People in need do not have enough of essential things such as money, food, or good health.
• If you are in need of something, you need it or ought to have it.
• 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.

专业释义

经济学

• 需要

  Cold chain logistics urgent need development energetically.
  冷链 物流迫切需要大力发展。

• 需求

  With the growing of real estate market, the need for elevators is growing at the same time.
  目前,随着房地产市场的开发,电梯需求也与日俱增。

  法学

• 需要

  Any of disputes need be solved any of right need be redressed.
  任何纠纷都需要解决,任何权利都需要救济。

  医药科学

• 需求

  Depend increased,but need decreased. More and more people choose self-therapy.
  慢性病患者因为经济原因,有效地卫生服务需求转移,需要增加,但需求下降,越来越多的人倾向于选择自我医疗。

  心理学

• 有需求
• 需要

计算机科学技术

• 需要
• 美国太空总署端-端资料系统

艺术学

• 需要