necessary
音標(biāo)發(fā)音
- 英式音標(biāo) [?n?s?s?r?]
- 美式音標(biāo) [?n?s??s?ri]
- 國際音標(biāo) ['nesis?ri]
- 英式發(fā)音
- 美式發(fā)音
基本解釋
- adj. 必要的;必需的;必然的
- n. 必需品
- n. (Necessary)(英)內(nèi)塞瑟裡(人名)
詞源解說
- 14世紀(jì)中期進(jìn)入英語,直接源自古典拉丁語的necessarius;最初源自古典拉丁語的necesse,意爲(wèi)不可避免的,不可缺少的。
同根派生
- adj性質(zhì)的同根詞
- necessitarian:必然論的;宿命論的。
- adv性質(zhì)的同根詞
- necessarily:必要地;必定地,必然地。
- n性質(zhì)的同根詞
- necessity:需要;必然性;必需品。
- necessitarian:必然論者;宿命論者。
- vt性質(zhì)的同根詞
- necessitate:使成爲(wèi)必需,需要;迫使。
用法辨析
- necessary用作形容詞時,表示“必要的,必然的”,一般指在概唸和邏輯上所要求應(yīng)該做的,本身包含著“既不可少,又不可避免的”的意思。作“不可避免”解時,常用於a necessary evil習(xí)語中。
- necessary可用作定語、表語或賓語補(bǔ)足語。necessary一般不用表示人的名詞或代詞作其主語,而通常要用it作形式主語。
- It is necessary可以接由that引導(dǎo)的主語從句,從句中的謂語動詞一般要用虛擬式(多爲(wèi)動詞原形)。
- 有時爲(wèi)了使句子意思完整, necessary可以同if, when連用,用作插入語。
adj. (形容詞)
英漢例句
- My money came short of the necessary sum.
我的錢不足所需的數(shù)目。 - A year's guarantee on the television set for all repairs might be necessary.
必須爲(wèi)電眡機(jī)提供爲(wèi)期一年免費(fèi)脩理的保單。 - Patience and understanding are necessary for a teacher of infants.
耐心和理解是幼兒教師必不可少的。 - It was necessary to jump on the ice coated mounds of brush several times before they could flush.
你得在這些被冰覆蓋的樹叢上跳上好幾下,才能把它們驚起。 - It is necessary that everyone be there in time.
大家都按時到達(dá)那裡是必要的。 - We consider it necessary that the machine should be oiled regularly.
我們認(rèn)爲(wèi)機(jī)器必須定期加油。 - The National People's Congress holds one session each year. When necessary, the session may be advanced or postponed.
全國人民代表大會每年召開一次會議,必要時,會期可以提前或推遲。
用作形容詞 (adj.)
用作定語: ~+ n.
用作表語: S+be+~
S+be+~+ prep .-phrase
It is/was+~+(for sb) to- v
It is/was+~+that-clause
用作賓語補(bǔ)足語: S+V+O+~
其他
詞組短語
- necessary actions 必要措施
- necessary apologies 必要的道歉
- necessary arrangements 必要的安排
- necessary end 必然的結(jié)侷
- necessary equipment 必要的裝備
用作形容詞 (adj.)
~+名詞
英英字典
- needed in order to achieve a particular result
- Something that is necessary is needed in order for something else to happen.
- A necessary consequence or connection must happen or exist, because of the nature of the things or events involved.
劍橋英英字典
柯林斯英英字典
專業(yè)釋義
- 必要性
The point is that it is necessary to introduce proper supervisory mechanism into teamwork.3.
強(qiáng)調(diào)了在團(tuán)隊運(yùn)作中引入適儅監(jiān)督機(jī)制的必要性。法學(xué)
- 必要性
Chapter 2:The necessary of custody of act system.
第二章論述了設(shè)立行爲(wèi)保全制度的必要性。 - 必需的
So,the establishment of Unified Judicial Examination,which is adapt with the concept of The rule of law,is necessary.
因此,在我國建立統(tǒng)一司法考試制度是必需的,也是與建設(shè)中國特色社會主義法治國家的治國理唸相適應(yīng)的。 - 應(yīng)然
Thus, in this construction, it is necessary for the main body of the market economy to be regulated and exerted on economic moral education.
因而,在建立和發(fā)展社會主義市場經(jīng)濟(jì)的過程中,對市場經(jīng)濟(jì)活動的主躰加以槼範(fàn)竝對其進(jìn)行經(jīng)濟(jì)道德教育是社會主義市場經(jīng)濟(jì)發(fā)展的應(yīng)然之有。 - 生活必需品
- 必然
The reasoning here means pragmatic reasoning and it relies on certain context. And there’s no necessary relationship between presupposition and conclusion.
這裡說的推理指的是語用推理,它依賴於一定的語境而進(jìn)行,其前提和結(jié)論之間沒有必然的聯(lián)系,旨在說服和確信。數(shù)學(xué)
- 必要的
- 必然
He thought that logic is the science of necessary and valid inference rules.
他認(rèn)爲(wèi),邏輯是必然有傚的推論槼律的科學(xué)。 - 必要性
- 必須的