首页英语词典preventprevent的意思

prevent

英 [prɪ'vent] 美[pri'vɛnt]

英英释义同义词辨析考试真题实用场景例句

近义词thwart from deter keep hinder forbid inhibit stop block

反义词

vt. 预防，防止；阻止
vi. 妨碍，阻止

CET4TEM4IELTS考研CET6中高频词基本词汇

词态变化

第三人称单数: prevents;过去式: prevented;过去分词: prevented;现在分词: preventing;形容词: preventable;

中文词源

prevent 预防，防止

pre-,在前，早于，预先，-vent,走，词源同advent,venue.比喻用法。

英英释意

1. keep from happening or arising; have the effect of preventing;: "My sense of tact forbids an honest answer"

2. prevent from doing something or being in a certain state;: "We must prevent the cancer from spreading"; "His snoring kept me from falling asleep"; "Keep the child from eating the marbles"

英文词源

prevent: prevent: [15] If you prevent someone, you ‘come before’ them (and indeed that literal meaning of the verb survived for some time: Thomas Cromwell wrote in 1538 ‘I have sent it unto him after the departure of the said Muriell, to the intent he might prevent the ambassadors post and you have leisure to consult and advise upon the same’; and as late as 1766 we find in Frances Sheridan’s Sidney Biddulph ‘I am an early riser, yet my lord V – prevented me the next morning, for I found him in the parlour when I came downstairs’).

The word comes from Latin praevenīre, a compound verb formed from the prefix prae- ‘before’ and venīre ‘come’. Already in Latin, though, it had progressed semantically from ‘come before’ via ‘act in advance of, anticipate’ to ‘hinder’, and this meaning emerged in English in the 16th century.
=> adventure, venue
prevent (v.): early 15c., "act in anticipation of," from Latin praeventus, past participle of praevenire "come before, anticipate, hinder," in Late Latin also "to prevent," from prae "before" (see pre-) + venire "to come" (see venue). Originally literal; sense of "anticipate to hinder" was in Latin, but not recorded in English until 1540s.

同义词辨析

block, bar, hinder, obstruct, prevent, hamper

这些动词均含有"阻止，阻塞"之意。

block：语气强烈，指有效堵住了通道，使人或物无法通过。

bar：含义与block很接近，指阻塞通道或禁止出入，但有对暗示不用障碍物的阻止或禁止。

hinder：语气较轻，多指阻碍、拖延人或事，强调使进展速度缓慢下来。

obstruct：正式用词，语气强，多指以干扰或设置障碍的方式阻碍交通，使不能自由畅通。

prevent：含义广泛，指采取预防措施或设置障碍去阻止某人或某事。

hamper：侧重因受到约束或阻碍而造成的行动困难。

考试真题

It prevents old information from forming associations.

Now a third and far more significant motivation presents itself: meeting these goals may be necessary to prevent the collapse of our civilization.

Unfortunately, many federal and state laws impose post-conviction restrictions on a shockingly large number of Americans, who are prevented from ever fully paying their debt to society.

It may prevent your business and career from advancing.

His mother, convinced that she had to do something dramatic to prevent him from leading a life of failure, lay down some rules.

The result of constant muscle tension and stiffness of joints, many of them are avoidable, and simple flexibility training can prevent these by making muscles stronger and keeping joints lubricated (润滑 ).

To prevent possible traffic jams in nearby areas

prevents many people from changing careers

But in single-sex schools teachers can tailor lessons to boys' learning style, letting them move around the classroom and getting them to compete in teams to prevent boredom, wrote the study's author, Abigail James, of the University of Virginia.

Natural views can prevent children from developing ADHD.

I've heard that at a factory in the area two pregnant women who were working with paint requested a transfer to a safer department, because they wanted to prevent damage to their unborn babies.

To prevent such tragedies, fire fighter Eric Velez gives talks to children in his community, explaining that they should never hide during a fire.

A 2016 review of 10 studies looking into the relationship between breakfast and weight management concluded there is "limited evidence" supporting or refuting (反驳) the argument that breakfast influences weight or food intake, and more evidence is required

Although the pressure of the cabin is adjusted to prevent altitude sickness, you could still experience sleepiness or a headache.

But it's also important to recognize that the pressure to divorce may be health-related and that sick ex-wives may need additional care and services to prevent worsening health and increased health costs.

his mother, convinced that she had to do something dramatic to prevent him from leading a life of failure, lay down some rules.

It can keep the mind active, prevent getting bored and help to concentrate.

It has some glue on it that has colored it slightly, but nothing that will prevent us from using it.

Offering support services to spouses caring for their other halves may reduce marital stress and prevent divorce at older ages, she said.

The lifestyle medicine specialty is designed to train doctors in how to prevent and treat disease, in part, by changing patients' nutritional habits.

To help prevent headaches, drink plenty of water, and avoid alcohol and coffee.

In time it should help restrain costs by eliminating redundant tests, preventing drug interactions, and helping doctors find the best treatments.

Conversion of paper to electronic medical records will help eliminate redundant tests and prevent drug interactions.

A new study has failed to find any conclusive evidence that lifestyle changes can prevent cognitive decline in older adults.

Overall, stress-related health problems account for up to 90% of hospital visits, many of them preventable.

But even when employees are given paid time off, workplace norms and expectations that pressure them to overwork often prevent them from taking it.

prevent students from accumulating knowledge

A shattering loss of confidence inspires behavior that overwhelms the normal self-correcting mechanisms that usually prevent a recession from becoming deep and prolonged: a depression

Scholars will debate which interventions this time - the Federal Reserve's support of a failing credit system, guarantees of bank debt, Obama's ''stimulus" plan and bank "stress test" - counted most in preventing a recurrence.

They prevent job losses in a way.

What has prevented the passing of work-family balance laws in the United States?

The 1976 copy right act has not prevented these abuses fully, but it has clarified the legal rights of the injured parties and given them an avenue for remedy.

Indians likewise had the traditional life taken from them by white settlers who often encourage them to consume alcohol to prevent them from fighting back.

Many cancer cases could be prevented.

The WCRF has estimated that 19,000 cancers a year in Britain could be prevented if people lost their excess weight with growing evidence that excess body fat increases the risk of various cancers

But even when employees are given paid time off, workplace norms and expectations that pressure them to overwork often prevent them from taking it.

For years, nutritionists have recommended that pasta be kept to a minimum, to cut calories, prevent fat build-up and stop blood sugar shooting up.

If Apple is forced to open up an iPhone for an American law enforcement investigation, what is to prevent it from doing so for a request from the Russians or the Iranians?

Ogbeh says experts are investigating how to control the pests damage and prevent its spread, which has gone largely unchecked until now.

Originally from South America, the snails were accidentally introduced into the Ebro Delta by Global Aquatic Technologies, a company that raised the snails for fresh-water aquariums, but failed to prevent their escape.

The expert review also found insufficient evidence to recommend any drugs or dietary supplements that could prevent or slow cognitive decline.

To prevent that event from becoming a catastrophe, first responders will join members of the public in rehearsals that involve communication, evacuation, search and rescue, and other scenarios.

While it may be impossible to prevent kids from drinking tap water that may contain trace amounts of chemicals, keeping kids away from lawns recently sprayed with chemicals and freshly dry-cleaned clothes can't hurt.

Advanced lights, motors, and building designs have helped save a lot of energy and therefore prevented pollution.

As always, you should stretch at least ten minutes before each run to prevent injuries.

But he is also working at a far more fundamental level: his staff show people how to make floating gardens and fish ponds prevent starvation during the wet season.

However, anger can easily turn violent, and it is best to know the reasons for anger to appear in order to prevent its presence.

If you like, a squeeze of fresh lemon juice on the bananas will prevent them turning brown.

In an effort to prevent language loss, scholars from a number of organizations—UNESCO and national geographic among them—have for many years been documenting dying languages and the cultures they reflect.

In that case, eat before the flight, or an empty stomach will prevent you from sleeping.

Machines with specific purposes are associated with living things partly because they might be able to prevent themselves from being destroyed.

Medical research often makes use of the forests' plant and animal life, and the destruction of such species could prevent researchers from finding cures for certain diseases.

The fats in fish are thought to help prevent heart disease.

The real challenge is preventing light from scattering.

They were prevented from using mobile phones.

We are finally waking up to the severity of the problem by supporting and developing a group of tools, apps and approaches intended to prevent scammers from getting through.

We're looking at the benefits of systems which control their speed as a way of preventing that.

With these main reasons in mind, we can evaluate our level of anger throughout the day and prevent cases of outbursts by comprehending the reasons for our feelings.

But if Congress wanted to prevent states from using their own resources to check immigration status,it could.

As the international education market expands, the recent slowdown in the number of international students studying in the main English-speaking countries is likely to continue, especially if there are no effective strategic policies to prevent such slippage.

But if Congress wanted to prevent states from using their own resources to check immigration status, it could.

Taking a gap year to figure things out initially can help prevent stress and save money later on.

实用场景例句

The accident could have been prevented.: 这次事故本来是可以防止的。

He is prevented by law from holding a licence.: 法律不准他持有执照。

Nothing would prevent him from speaking out against injustice.: 什么都不能阻止他鸣不平。

Nothing would prevent him/his speaking out against injustice.: 什么也阻挡不了他为不平之事鸣冤叫屈。

preventable diseases/accidents: 可以防止的疾病 / 事故

These methods prevent pregnancy...: 这些方法能防止怀孕。

Further treatment will prevent cancer from developing...: 进一步的治疗将阻止癌症恶化。

He said this would prevent companies from creating new jobs...: 他说这将使公司无法创造新的工作机会。

Its nationals may be prevented from leaving the country...: 其国民可能会被禁止出境。

The risk factors, he added, " are correctable and need to be corrected before treatment or concurrently. ": 他补充: “ 危险因子是确切的,应该在治疗前或者同时被处理. ”

The fence is strategically sited to prevent anyone getting onto the beach.: 这个围栏的地点选择得很有策略,可以阻止任何人到海滩上.

How can we prevent such distress?: 我们怎样才能避免这种贫困?

We should prevent others cashing in before we've time to market the product.: 我们应该防止别人在我们没有来得及在市场上销售这产品之前大捞一笔.

She tried to prevent her work from encroaching too far on her private life.: 她尽力避免工作过多地影响她的私生活.

We must prevent the trouble from spreading.: 我们必须防止这个乱子扩大.

I'm trying to prevent the reversion of my garden to nature.: 我正在试图防止我的花园返回一片荒芜的自然状态.

The windows are boarded up to prevent the thieves from breaking in.: 用木板封好窗户,防止盗贼进入.

The policy is designed to prevent the predominance of one group over another.: 该政策旨在防止一些人压制另一些人.

That will prevent the wings of the aircraft from icing up.: 这样可防止机翼结冰.

Nobody can prevent our getting married.: 谁也阻止不了我们结婚.

The police tried to prevent infiltration by drug traffickers.: 警方尽力阻止毒品走私分子的潜入.

The test questions are kept secret so as to prevent cheating.: 考试题保密以防作弊.

More care in the future will prevent recurrence of the mistake.: 将来的小心可防止错误的重现.

The gas pipe has been blocked off to prevent escapes.: 煤气管道已被关闭,以防漏气.

The best way is to prevent disease.: 预防疾病才是上策.

Be sure to wear the correct footwear to prevent injuries to your feet.: 一定要穿合适的鞋，以免脚受伤。

attempts to prevent cancer cell proliferation: 防止癌细胞扩散的努力

attempts to prevent a recurrence of the problem: 防止问题再次发生的努力

The security zone was set up to prevent guerrilla infiltrations.: 设立了安全区以防止游击队员的渗入。

prevent

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