- adj.必要的; 强制的; 必然的; 不可避免的;
Hospital admission is not necessary in most cases.
I do not wish to complicate the task more than is necessary.
to go through all the formalities necessary in order to get a gun licence
She found it necessary to reassert her position.
For her, books were as necessary to life as bread.
He seems to be making all the arrangements necessary so that he can continue trafficking in drugs when he turns himself in.
The man could unerringly select the parts that were necessary to his task.
They are not afraid to tackle the issues or let the sparks fly when necessary.
We will use air power to protect UN peacekeepers if necessary.
Make the necessary arrangements.
Carbon dioxide is a necessary result of the oxidation of carbon compounds.
From very early on he believed a military revolution was necessary and he has never deviated from that ideological path.
And let me assure you I will use whatever force is necessary to restore order.
They are only doing what is necessary to prevent wholesale destruction of vegetation.
Higher taxes may be a necessary evil.
All the rigging had been examined, and renewed where necessary.
He wasn't good navigator, so it is necessary that the coastline remain in sight as he moved from one harbor to the next.
It's necessary for us to net the currant bushes.
They has possessed themselves of all the necessary material.
It is both important and necessary to note this difference.
This has made it necessary for agriculture and industry to develop very quickly.
It is necessary to exercise caution when making commendations.
To join these two pieces of metal, it will be necessary to heat them.
They were ready to die , if necessary, for their country.
They always sum up their ( work ) experience whenever it is necessary, so they improve rapidly.
He believed that in building socialism it was necessary to make thorough plans on behalf of the state.
It's necessary for leading cadres to keep frequent contacts with the masses.
The ability to do this will be necessary in future flights to distant planets.
Is it necessary to send a car for them?
用得着派车去接他们 吗 ?
It is necessary to decrease the amount of coal used.
Russell argues that as robots take on more complicated tasks, it's necessary to translate our morals into AI language.
Now a third and far more significant motivation presents itself: meeting these goals may be necessary to prevent the collapse of our civilization.
When turning work into a game, it is necessary to understand what makes games interesting.
Then, he's going to need to know the technical details of your system and acquire the specific equipment necessary for jamming your specific setup.
Sugar, alcohol and tobacco, economist Adam Smith once wrote, are commodities which are nowhere necessaries of life, which have become objects of almost universal consumption, and which are, therefore, extremely popular subjects of taxation.
It is possible for burglars to make jamming attacks with the necessary equipment and skill.
It is necessary to use terms other than gamification for some professions.
Adults tend to talk about learning as if it were medicine: unpleasant, but necessary and good for you.
People tend to take in a lot more calories than necessary.
Although Kodak anticipated the inevitable rise of digital photography, its corporate（企业的） culture was too rooted in the successes of the past for it to make the clean break necessary to fully embrace the future.
While such vigilant（警觉的）tracking of cancer is a good thing in general, researchers are increasingly questioning whether all of this testing is necessary for the elderly.
And if we keep working toward that goal, someday, perhaps a list won't be necessary.
This is necessary because full-time students probably have to read several hundred pages every week.
She does not think it's necessary to stay home every day with the children and she knows a very reliable babysitter who's willing to come to her house.
Make donations when necessary
With fertilizer prices jumping nearly 50% per metric ton over the last year in some places, human waste is an attractive, and often necessary, alternative.
a basis for explaining human genetic diversityan aid to understanding different populationsan explanation for social and cultural differencesa term to describe individual human characteristicsmodern genetics research is likely to fuel racial conflictsrace is a poorly defined marker of human genetic diversityrace as a biological term can explain human genetic diversitygenetics research should consider social and cultural variablesit is absolutely necessary to put race aside in making diagnosisit is important to include social variables in genetics researchracial categories for genetic diversity could lead to wrong clinical predictionsdiscrimination against black people may cause negligence in clinical treatmentThey be more precise with the language they use.
While we argue phasing out racial terminology ( ' , 术语 ) in the biological sciences, we also acknowledge that using race as a political or social category to study racism, although filled with lots of challenges, remains necessary given our need to understand how structural inequities and discrimination produce health disparities ( ' , 差异 ) between groups, Yudell said.
One analyst suggests it is necessary to accept both the positive and negative aspects of innovative products.
Throughout these series, you will learn more about the profession, the necessary steps to get a social work degree, the rich history of social work and many ways that social workers help others.
And we create opportunity for assessment and intervention, to help clients and communities cope effectively with the reality and change that reality when necessary.
To find effective solutions to climate change, it is necessary to understand what motivates people to make change.
In particular, Arum and Roksa found, college students were not developing the critical thinking, analytic reasoning and other higher-level skills that are necessary to thrive in today's knowledge-based economy and to lead our nation in a time of complex challenges and dynamic change.
Therefore, team building may be necessary in order to improve the group’s performance.
In order to see the world whole, the author thinks it necessary to have some disrance from the world.
The government fails to provide the necessary support.
They believe such a diet which includes no products from animal sources can be deficient in many of the necessary vitamins and minerals our bodies need.
A code number is necessary to run the copy machine
Whether the security checks were really necessary.
A school boy or girl is unpunctual because he or she does not have the necessary human virtue of self-discipline.
2015年高考英语陕西卷 阅读理解 阅读B 原文
Believing in such a world, many governments have put an end to some of the very necessary regulations on cross-border flows of capital, labour and goods, with poor results.
2019年高考英语江苏卷 阅读理解 阅读C 原文
Every college discussion about community values, social climate and behavior should include recognition of the developmental importance of student autonomy and self-regulation, of the necessary tension between safety and self-discovery.
2016年高考英语北京卷 阅读理解 阅读D 原文
For many students, Wilson's help is not only appreciated, it's also entirely necessary for them to be able to complete their college education.
2019年高考英语北京卷 完形填空 原文
Hard work is necessary in one's achievements.
2016年高考英语江苏卷 阅读理解 阅读D 选项
In modern society, punctuality is a necessary virtue.
2015年高考英语陕西卷 阅读理解 阅读B 原文
It is necessary for us to think of others and be considerate to them.
2015年高考英语陕西卷 阅读理解 阅读B 原文
Loans to small local farmers are necessary.
2018年高考英语江苏卷 阅读理解 阅读C 选项
Nutrition is necessary for life, so it is not surprising that food is such an important part of different cultures around the world.
2015年高考英语安徽卷 阅读理解 阅读E 原文
One group was asked to seek out an interaction with its waiter; the other, to speak only when necessary.
2018年高考英语全国卷2 阅读理解 阅读D 原文
Persons in other cultural groups value silence and view it as necessary for understanding a person's needs.
2016年高考英语全国卷1 阅读理解 阅读D 原文
So, comfortable shoes are really necessary.
2016年高考英语全国卷2 听力 原文
Students should have a proper attitude towards college before thinking about which college to attend, and it's never too early to make necessary preparations for a healthy and meaningful college experience.
2019年高考英语北京卷 语法填空 原文
Unfortunately, you must carry the necessary equipment with you, since it's all but impossible to find natural substitutes.
2017年高考英语全国卷1 阅读理解 阅读D 原文
We're taught to read because it's necessary for much of human understanding.
2019年高考英语天津卷 阅读理解 阅读B 原文
When it comes to emotional support, the author thinks it necessary to surround yourself with supportive people.
2015年高考英语福建卷 阅读理解 阅读E 题设
This increasingly high level of education is probably a necessary, but not a sufficient, condition for the complex political systems required by advanced economic performance.
Progress in both area is undoubtedly necessary for the social, political and intellectual development of these and all other societies; however, the conventional view that education should be one of the very highest priorities for promoting rapid economic development in poor countries is wrong.
To be sure, he performs an impressive variety of interesting compositions, but it is not necessary for me to visit Avery Fisher Hall, or anywhere else, to hear interesting orchestral music.
Humanity has the necessary agro-technological tools to eradicate hunger, from genetically engineered crops to artificial fertilizers.
For him, order does not result from forgetting or ignoring the disorders that plague our existence; order is a necessary development, an improvement that may lead to the Greek ideal of spiritual elevation.
That is a necessary and practical approach.
If it clears the House, this measure would still have to get through the Senate where someone is bound to point out that it amounts to the bare, bare minimum necessary to keep the Postal Service afloat, not comprehensive reform.
Further arrangements- and there may be many-between the NHS and DeepMind will be carefully scrutinised to ensure that all necessary permissions have been asked of patients and all unnecessary data has been cleaned.
1. anything indispensable;
"food and shelter are necessities of life"
"the essentials of the good life"
"allow farmers to buy their requirements under favorable conditions"
"a place where the requisites of water fuel and fodder can be obtained"
1. absolutely essential
2. unavoidably determined by prior circumstances;
"the necessary consequences of one's actions"
access[n.接近;入口 v.存取, 接近]+ible能……的→adj.能接近的;可进去的
necessity 必要性, 需要,必需品
process[n.过程;进行 v.加工, 处理]+ion表名词→向前走的队伍
succession 接连发生,继承, 继任
access 存取, 接近
a necessary evil
something that is undesirable but must be accepted
indispensable, essential, necessary, requisite