音标:['nesisәri] ; 柯林斯词典等级:4 级; 牛津三千核心词汇;
a. 必要的;必然的;必需的
a. absolutely essential
s. unavoidably determined by prior circumstances
词型变化:名词复数形式 : necessaries
考试类型:[中考/高考]
词性分布:
形容词99%
名词1%

necessary的用法和样例:

例句

用作形容词(adj.)
  1. She will make necessary arrangements.她会作好必要的准备。
  2. If necessary, please warehouse the goods.如有必要,请将该货存入仓库。
  3. The necessary outcome of a war is a fall in production.战争带来的必然结果就是生产力下降。

常见句型

用作形容词(adj.)
用作定语~+ n.
  1. My money came short of the necessary sum.我的钱不足所需的数目。
  2. Do you have the necessary skills for this job?你具备做这项工作所必需的技能吗?
  3. They joined the wires and made the necessary new connection.他们把电线接了起来,接通了所需的新线路。
  4. I'll leave it to you make the necessary arrangements.我将让你作出必要的安排。
  5. The lawyers will draw up all the necessary papers.律师们将拟定出所有必要的文件。
  6. No one foresees how the necessary restriction of the population will be effected.任何人都无法预知将如何实现对人口的必要限制。
  7. They will meet in Beijing to debate taking necessary actions against environmental pollution.他们将在北京会晤并讨论采取必要措施防止环境污染。
用作表语S+be+~
  1. A year's guarantee on the television set for all repairs might be necessary.必须为电视机提供为期一年免费修理的保单。
  2. A climber must learn to discriminate as to when compass bearings are necessary and when they are not.一个登山者必须学会辨别什么时候需要罗盘测定方位,什么时候不需要。
  3. Under certain conditions, answering back sarcastically is necessary.在某种情况下,反唇相讥是必要的。
S+be+~+ prep .-phrase
  1. Patience and understanding are necessary for a teacher of infants.耐心和理解是幼儿教师必不可少的。
  2. What is necessary for one person is not always necessary for another.对某人来说是必需的东西,对别人则未必如此。
  3. These reference books are necessary to scientists.这些参考书是科学工作者所必需的。
  4. Sleep is necessary to one's health.睡眠对健康是必要的。
It is/was+~+(for sb) to- v
  1. It was necessary to jump on the ice coated mounds of brush several times before they could flush.你得在这些被冰覆盖的树丛上跳上好几下,才能把它们惊起。
  2. It's necessary to raise wages on the basis of increasing production.需要在增加生产的基础上增加工资。
  3. Because the company was doing more business, it was necessary to expand the factory.由于公司业务的扩大,扩大工厂是必然的。
  4. It was necessary to retire several generals who lacked energy and enterprise.使几位缺乏精力和上进心的将军解职是必要的。
  5. It is sometimes necessary to indulge a sick child.迁就一个生病的小孩有时是必要的。
  6. It is both important and necessary to note this difference.注意到这个差别是重要的和必要的。
  7. Is it really necessary for me to attend the meeting?我真的必须出席会议吗?
  8. It's necessary for us to net the currant bushes.我们有必要用网盖上红醋栗树。
  9. It is necessary for them to decide on which type of fuel is most suitable.他们必须决定哪一种燃料最合适。
It is/was+~+that-clause
  1. It is necessary that everyone be there in time.大家都按时到达那里是必要的。
  2. It's necessary that young and old people should communicate more with each other.年轻人和老年人有必要保持更多的联系。
用作宾语补足语S+V+O+~
  1. We consider it necessary that the machine should be oiled regularly.我们认为机器必须定期加油。
  2. This has made it necessary for agriculture and industry to develop very quickly.这就使得工农业必须飞速发展。
  3. I felt it necessary to speak about our shortcomings.我觉得有必要谈谈我们的缺点。
  4. Some students hold it necessary to be able to speak English.有些学生认为能讲英语是非常必要的。
其他
  1. The National People's Congress holds one session each year. When necessary, the session may be advanced or postponed.全国人民代表大会每年召开一次会议,必要时,会期可以提前或推迟。
  2. If necessary, the heavy machinery can be brought into action.若有必要,可以使用重型机械。
  3. If necessary,I'll go there again.如有必要,我会再去那里的。

常用短语

用作形容词(adj.)
a necessary evil
    不得不认可的不合意甚至有害的事物 thing that is undesirable and possibly harmful but must be accepted for practical reasons

词汇搭配

用作形容词 (adj.)
~+名词
  • necessary actions必要措施
  • necessary apologies必要的道歉
  • necessary arrangements必要的安排
  • necessary end必然的结局
  • necessary equipment必要的装备
  • necessary information必要的信息
  • necessary instruments必要的仪器
  • necessary makeshift必要的权宜之计
  • necessary restriction必要的限制
  • necessary result必然的结果
  • necessary skill必需的技能
  • necessary sum所需的数目
副词+~
  • absolutely necessary绝对必要
  • highly necessary非常必要的
  • really necessary真的必要
~+介词
  • necessary for对…是必要的
  • necessary for health对健康是必要的
  • necessary to对…是必需的

经典引文

  • Pincher..left the ship with..a little bundle of necessaries.

    出自:Taffrail
【近义词】
【反义词】
学英语单词
abrupt heterojunction
abu hijar (abu higar)
aetiolation
air activity monitor
airways shelter
amidinohydrazone
anna's
areotic
bcom
berg winds
bioastronautic
biological tunnel
caimano
centismal
Chikalda
chilenite (chileite)
climate resource
compression-release valve
cortosis
cyclotron frequency oscillation
deep-strike
delighter
demarchies
differential coherent
directional-gyro
double waste
downward type bias
drafting instrument
dragee machine
economic indices of hydropower station
Evac-U-Lax
exchange fund debt certificate
fluorosulfonic acid
french chalks
functional flexibility
Gastrochilus nanchuanensis
gender regimes
glycodine
haimhald
high temperature water pump assembly
i-scrud
Immenstadt
indolinone
industrial performance standard
iodopyridines
jar-shaped kiln
Keum
Komadugu Gana, R.
littlemills
logical end
lost round
loukaitis
man-power distribution
manhole cover ring
maximum machining depth
Mister Charley
monk's-hood
monthly instalment sale
Neisser-Wechsberg phenomenon
net income and loss
nintendo entertainment system
Nodus lymphaticus juguloomohyoideus
nonionic surfactants
not go gage
Nsango
number of alternations
opus araneum
outside of angle
overhead rall milker
overpsychologize
Personal sign.
prefining
primary phallic lobe
proprioreceptive organ
purely and simply
puriss
restraint moment
rheumatoid pericarditis
Rioz
rock drain
rumfustianish
rust of peach
selective calling system (selcal)
sell-throughs
shvitzing
spring protecting sleeve
statisin
stfields
subinterfaces
summerfest
supelco
told
Twx, teletypewriter exchange service.
uranium sulfate
vampiresque
variance reports
vegetable preparation room
vena pulmonalis superior sinistra
vespertinus
whippers-in
white enamel paint
wide-door car