need

时间:2024-03-21 18:17:01编辑:优化君

英语need是什么?

“need”既可以作情态动词,也可以作实义动词,但是它们的用法不同。
作为情态动词的“need”的用法与其他情态动词“can”,“may”,“must”的用法基本相同:在限定动词词组中总是位居第一,没有非限定形式,即没有不定式、-ing分词或-ed分词等形式;第三人称单数现在时没有词形变化;情态动词之间是相互排斥的,即在一个限定动词词组中只能有一个情态动词。下面是“need”作为情态动词的用法:
一、need表示“需要”或“必须”,通常用于否定句,疑问句,条件句。例如:
1.You needn't do it again.你不需要再做了。
2.He needn't worry about it.这件事他无需担心。
3.Need he do this homework first?他需要先做这些作业吗?
4.Need they fill in the form?他们需要填表吗?
二、在否定句中,可以用need的否定形式+不定式完成体。例如:
1.We needn't have worried.其实我们不必要慌。
2.You needn't have mentioned it.你本来不必提起这件事。
3.You needn't have said that when he asked.当他问的时候,你其实不必要说。
三、needn't后的不定式间或也能用进行式或被动语态。例如:
1.He needn't be standing in the rain.他不必要站在雨中。
2.We needn't be waiting in this place.我们不必要在这儿等。
3.The hedges needn't be trimmed thisweek.本周树蓠不必要整修。
四、其一般疑问句的答语,肯定用must,否定用needn't。
Need I go with her? 我需要和他一起去吗?
Yes,you must. 是的,你需要去。
No,you needn't. 不,你不必去。
“need”作为实义动词时,通常用法是:
人+need +to do
物+need +doing
物+need +to be done
另外,“need”作实义动词时后还可以直接跟名词。请看下面的例子:
It is a question that needs very careful consideration.这是一个需要慎重考虑的问题
很简单的方法区别情态动词与实义动词:当need为情态动词时,意思是“必要”,否定为"needn't",后面大多接动名词,表示动作;
当need为实义动词时,意思是“需要”,否定为"don't need",后面大多跟名词。


英文need的用法和意思

need
[ni:d]
n.
需要, 必需, 必需品, 要求, 贫困
vt.
需要
modal v.必要, 必须

need
need
AHD:[n¶d]
D.J.[ni8d]
K.K.[nid]
n.(名词)
A lack of something required or desirable:
需要:对想要或期望的事物的缺乏:
crops in need of water; a need for affection.
需要水的庄稼;对感情的需要
Something required or wanted; a requisite:
必需品:要求或需要的事物;需要物:
Our needs are modest.
我们的必需品是谦虚
Necessity; obligation:
必要;义务:
There is no need for you to go.
你没有必要去
A condition of poverty or misfortune:
贫困:贫穷或不幸的状况:
The family is in dire need.
这个家庭极为贫困
v.(动词)
need.ed, need.ing, needs
aux.(助词)
To be under the necessity of or the obligation to:
必须要:必须要,有义务要:
They need not come.
他们不必来
v.tr.(及物动词)
To have need of; require:
需要;想要:
The family needs money.
这个家庭需要钱
v.intr.(不及物动词)
To be in need or want.
需要,想要
To be necessary.
有必要

Middle English nede
中古英语 nede
from Old English n¶¶d} [distress, necessity]
源自 古英语 n¶¶d} [穷困,贫困]

need, necessity, exigency, requisite
These nouns denote a condition in which something essential is required or wanted; they also refer to that which is required or wanted.
这些名词都指处于对必需品的要求和需求的一种状况;它们也指需要的或要求的东西。
Need is the most general:
Need 最普遍:
There's no need to be concerned.
没必要担忧。
She is serene and contented;
她很安详、平静;
her emotional and spiritual needs are being met.
她感情和精神上的需要都得到了满足。
Necessity more strongly than need suggests urgency, inevitability, or unavoidable obligation:
Necessity 比need 更强, 用来指紧迫的、不可避免的或不可躲避的义务:
“I think the necessity of being ready increases.—Look to it” (Abraham Lincoln).
“我认为做好准备的 紧迫性增加了。——注意” (亚伯拉罕·林肯)。
“The rehabilitation of the cabin became a necessity” (Bret Harte).
“小屋的重新修建已是不可避免的了” (布雷特·哈特)。
Exigency implies acute urgency, especially that arising from conditions or circumstances such as those of an emergency:
Exigency 指非常紧迫,尤指产生于类似紧急事件的条件或环境:
“No . . . more pernicious [doctrine] was ever invented . . . than that any of [the Constitution's] provisions can be suspended during any of the great exigencies of government” (David Davis)
“没有…曾经创造的 能比在一次政府的危急关头对 条款的取消更为有害的” (大卫·戴维斯)。
Requisite applies to something indispensable:
Requisite 指不可缺少的事物:
“a place where the three grand requisites of water, fuel and fodder were to be obtained” (James Fenimore Cooper).See also Synonyms at lack
“三种主要必需品,水、燃料和草料都具备的地方” (吉姆斯·费尼莫尔·库珀)参见同义词 lack

Depending on the sense, the verb need behaves sometimes like an auxiliary verb (such as can or may ) and sometimes like a main verb (such as want or try ). When used as a main verb, need agrees with its subject, takes to before the verb following it, and combines with do in questions, negations, and certain other constructions:
根据语义,动词need 有时当作助动词来使用(如 can 或 may ), 有时象实义动词(如want 或 try )。 当用作实义动词时,need 和主语一致, 把to 放在其后面动词的前面, 在疑问句、否定句或某些特定的造句法上和do 连用:
He needs to go.
他想走。
Does he need to go so soon?
他这么快就要走吗?
He doesn't need to go.
他不需要走。
When used as an auxiliary verb, need does not agree with its subject, does not take to before the verb following it, and does not combine with do :
当用作助动词时,need 不用和主语一致, 不用把to 放在其后动词的前面, 并且不用和do 连用:
He needn't go.
他不必走。
Need he go so soon?
他这么快就要走吗?
The auxiliary forms of need are used primarily in present-tense questions, negations, and conditional clauses. They differ subtly in meaning from the main verb forms in that they always refer to an externally imposed obligation. Hence one might say You needn't (or less formally, don't need to ) fill out both forms, but where the sense of necessity is internal to the subject, only the main verb can be used:
Need 的助动词形式主要用于现在时态的疑问句、否定句和条件句中。 它们在意思上和用作实义动词的形式有细微的区别,它们总指外部加强的压力。因此我们可以说你没必要 (或不太正规的 don't need to ) 填两份表格 , 但是对于物体来说需要的意思是内在的,所以只能用实义动词:
I don't need to (not needn't ) be told how to manage my own affairs.
我不需要(而不是 needn't ) 被告诉怎知管理自己的事情 。
Note also that the use of need as an auxiliary is often accompanied by a presupposition that the activity in question has in fact been performed. The boys needn't have spoken frankly implies that they did in fact speak frankly, whereas the sentence The boys did not need to speak frankly does not; only the latter could be followed by a clause like they conveyed their meanings by indirection.
还需注意need 用作助动词时经常伴随一个先决条件, 质问的动作事实上已经完成了。那些男孩们本来不需要坦诚相告的 意味着他们事实上已经坦率地说了, 然而这个句子男孩们不需要坦诚地说话 就没有这个意思; 只有后者可以在其后跟这样一个句子,如他们间接地表达他们的意思

need
[ni:d]
v.
(否定形式略写为 needn't) (常与to连用)
需要
Plant needs water.
植物需要水。
He needed all his charm to persuade her that it was not his fault.
他需要使出浑身解数来叫她相信那不是他的错。
My shirt needs a button.
我的衬衫需要一枚钮扣。
She's on holiday; she needed a change from work.
她正在度假,她需要放下工作改变一下生活。
These six kitchens are all needed when the plane is full of passengers.
这六个厨房在飞机载满旅客时都用得着。
You didn't need to tell him the news; it just made him sad.
你无需告诉他这一消息, 那只会使他悲哀。
必须,不得不
You needn't talk so loud.
你不必这么大声讲话。
Need you go so soon?
你非得这么快就走吗?
We need to work harder.
我们必须更加努力工作。
You needn't have told him the news; he knew it already.
你不必再告诉他这个消息,他已经知道了。

need
n.
缺乏;缺少;需要
children's need for milk
儿童需要牛奶
The hungry children were in need of food.
这些饥饿的孩子需要食物。
责任;义务
a need for taxes
纳税的义务
No need to go yet, it's still early.
不必走,还早着呢。
必需品
Their need was fresh water.
他们所必需的是淡水。
贫穷;困难
illness, need, and other troubles of the world
疾病、贫困以及世界上其他的烦恼
He is in great need.
他穷得很。

if need be
如果需要
If need be, I can come early tomorrow.
如果需要的话,明天我可早来。

need
中古英语nede<古英语nied

need
lackrequirewant


need 中文什么意思

need
英[ni:d] 美[nid]
过去式:needed 过去分词:needed 现在分词:needing 复数:needs
vt.
1.需要; 必须
暂无词性
1.必须
n.
1.需要, 需求
2.责任, 必要
3.需要的东西
4.贫穷; 困窘
vi.
1.(表示应该或不得不做)有必要 及物动词 vt.
1.需要; 必须
These shoes need to be repaired.
这些鞋需要修理。
These patients need looking after.
这些病人需要照料。
She needs the work done before tomorrow.
她必须在明天以前找人完成这项工作。
暂无词性
1.必须
Need he go yesterday?
昨天他有去的必要吗?
名词 n.
1.需要, 需求
2.责任, 必要
There is no need of your anxiety.
你的焦虑是不必要的。
3.需要的东西
The hotel staff will supply all your needs.
饭店工作人员会向你们提供一切需用的东西。
4.贫穷; 困窘
We are collecting money for families in need.
我们正在为有困难的家庭募捐。
不及物动词 vi.
1.(表示应该或不得不做)有必要


need中文是什么意思

need中文是什么意思

1、作动词时,意思是:需要、必需;(表示应该或不得不做)有必要例句:You need money and time; in addition, you need diligence. 你需要钱和时间,此外还需要努力。2、作名词时,意思是:需要、必须、特别需要、迫切要求、需要的事物、欲望。例句:You might chance on the thing you need in the store. 在这个店里你也许能碰到你所需要的东西。用法:词义为需要时,是最普通用词,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。读音:英 [niːd] 美 [niːd] 扩展资料同义词辨析want demand need require 【导航词义:需要】1、want v. [非正式]需要〔辨析〕既可指需要某事物,也可指需要某人做某事,常可与 need 换用。〔例证〕Do you want/need me to pick you up at the station?你要我到车站接你吗?2、demand v. 需要〔辨析〕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。〔例证〕An important meeting demanded his presence.一个重要会议需要他出席。3、require v. 需要〔辨析〕词义同 need,常可换用,但语气较弱。〔例证〕The mastery of a language requires/needs painstaking effort.要学好一种语言,必须下苦工夫。

need的用法

need作为动词有两种用法,可以作情态动词和实义动词,详细用法如下:用作情态动词,注意以下用法(1) 其后接动词原形通常只用于否定句或疑问句,一般不用于肯定句;本身无词形变化。如:Need he do it all at once? 他需要马上就做吗?You needn’t make two copies. One will do. 你不用打印两份。一份就够了。(2) needn’t可用作以must开头的疑问句的否定回答。如:A:Must I go there now? 我必须现在去吗?B:No, you needn’t. 不必了。(也可用 No, you don’t have to, 但不能用 mustn’t注意以下一般疑问句的回答:A:Need I type this letter again? 这封信需要我再打一遍吗?B:No, you needn’t. 不,你不必了。B:Yes, you must. 是的,你必须再打一遍。B:Yes, you need.(此回答错误,因为用作情态动词的need不能用于肯定句中)(3) 当要谈论过去情况时,其后要接动词完成时。如:You needn’t have come in person. 你当时不必亲自来的。Need you have paid so much? 你当时真需付那么多钱吗? 用作实义动词,注意以下用法(1) 既可用于否定句和疑问句(需要借助助动词do的适当形式),也可用于肯定句(注意有词形变化),为及物动词,其后可跟名词、代词、不定式等。如:How much money do you need? 你需要多少钱?You don’t need to stay. 你没有必要留下。This plan needs careful thought. 这个计划需要好好考虑。We need to be especially careful. 我们需要特别小心。(2) 当need表示客观上的需要时,其后可接不定式或动名词,注意:接动名词时要用主动形式表示被动含义。如:这个句子需要解释。正:This sentence needs explaining [to be explained].误:This sentence needs to explain [being explained].再比较以下句子,第二句中的 mending虽为主动形式,也表示被动含义:我得把我的外套去补一下。正:I need my coat mended.正:I need my coat mending.由于既可用作情态动词,也可用作实义动词,注意以下用法:(1) 一般说来,用作情态动词和用作实义动词,在意思上没有多大差别,只是用法上差别较大。如:He needn’t come. 他不必来。He doesn’t need to come. 他不必来。但是,在个别情况下两者在意义上也有差别。如:He needn’t be told. 没有必要告诉他。He doesn’t need to be told. 不需要告诉他了。(即他已知道了)(2) 比较 didn’t need to do 与 needn’t have done:前者通常表示因为没有做某事的必要,所以没有去做;后者通常表示某事已经做了,但后来觉得没必要去做,含有责备或遗憾之味。如:I didn’t need to get up early this morning, so I stayed in bed until 9 am. 今天早上我不必早起,所以我一直睡到上午9点钟才起床。I got up early, but I needn’t have done so, because I had no work to do that morning. 我起床起得很早,但我本来不必起那么早的,因为我那天早上没什么事做啊。need 作行为动词:可用于疑问句、否定句和肯定句。作为动词的need后可接动名词的主动式表示被动含义。 need 还可作名词:表示“需要, 必需, 必需品”等。

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