prevent的相关用法
prevent的用法及搭配 (2)
prevent的用法及搭配一、prevent的基本用法及意思解析在日常英语中，prevent是一个常见且重要的动词。
它的主要意思是阻止或预防某件事情发生。
prevent可以用于各种语境，包括个人行为、社会问题和健康保健等方面。
本文将详细介绍prevent的基本用法，并讨论一些常见的搭配和表达方式。
二、个人行为方面1. Prevent somebody from doing somethingPrevent somebody from doing something是 prevent 最常见的用法之一。
它表示阻止某人做某事，起到限制或避免不良行为的作用。
“from”后接动词原形表示被限制行为。
例如：- The teacher prevented the students from using their phones during class.（老师阻止学生上课时使用手机。
）- We should prevent children from accessing violent video games.（我们应该防止孩子接触暴力视频游戏。
）2. Prevent something/somebody (from) doing something这种表达方式与前述类似，但省略了“from”。
它强调了预防措施或结果，并使得句子结构更简洁。
例如：- Regular exercise can help prevent you getting a cold.（定期锻炼有助于预防感冒。
）3. Take measures/precautions to prevent为了有效地避免某种情况出现，我们可以采取措施或预防措施。
这些措施可能是个人为了自我保护所做的，也可能是组织制定的规章制度。
例如：- The government should take measures to prevent illegal downloading of copyrighted materials.（政府应当采取措施防止非法下载版权材料。
prevent的用法和辨析
prevent的用法和辨析你们知道prevent的用法吗?我们一起来学习学习吧，下面就和大家分享，来欣赏一下吧。
词汇精选：prevent的用法和辨析一、详细释义：v.阻止，妨碍[I,T]例句：This discrepancy will prevent me from obtaining a visa.因为这一差错，我将得不到签证。
例句：The police have been trying to prevent them carrying weapons.警方一直都设法阻止他们携带武器。
预防，防止[I,T]例句：The solution then is to prevent the country from becoming a net debtor in the first place.解决这个问题，首先是要防止一个国家成为净债务国。
例句：These methods prevent pregnancy.这些方法能防止怀孕。
二、词义辨析：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。
三、参考例句：These methods prevent pregnancy.这些方法能防止怀孕。
These methods prevent pregnancy.这些方法能防止怀孕。
This will prevent leaning back.这将避免身体向后地倾斜。
prevent的详细用法总结
prevent的详细用法总结今天给大家带来了prevent的用法总结大全，快来一起学习吧，下面就和大家分享，来欣赏一下吧。
prevent的用法总结大全prevent的意思vt. 预防;阻碍;阻止;[宗教]引领vi. 阻挠，阻止;prevent的用法1.防止；预防；阻止Further treatment will prevent cancer from developing...进一步的治疗将阻止癌症恶化。
We recognized the possibility and took steps to prevent it happening.我们认识到了这种可能性，并且采取了一些预防措施。
2. 阻止；制止；阻碍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 police have been trying to prevent them carrying weapons.警方一直都设法阻止他们携带武器。
3.词组用法“prevent” + something“prevent”+某事The soldiers prevented the evacuation.例句：士兵们阻止撤离。
“prevent” somebody from + -ing“prevent”某人做某事The soldiers prevented the refugees from evacuating.例句：士兵们阻止难民们撤离。
prevent的用法例句1. A dentist may decide to extract the tooth to prevent recurrent trouble.牙医可能会决定拔掉那颗牙，以免反复发作。
prevent的详细用法总结
prevent的详细用法总结今天给大家带来了prevent的用法总结大全，快来一起学习吧，下面就和大家分享，来欣赏一下吧。
prevent的用法总结大全prevent的意思vt. 预防;阻碍;阻止;[宗教]引领vi. 阻挠，阻止;prevent的用法1.防止；预防；阻止Further treatment will prevent cancer from developing...进一步的治疗将阻止癌症恶化。
We recognized the possibility and took steps to prevent it happening. 我们认识到了这种可能性，并且采取了一些预防措施。
2. 阻止；制止；阻碍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 police have been trying to prevent them carrying weapons.警方一直都设法阻止他们携带武器。
3.词组用法“prevent” + something“prevent”+某事The soldiers prevented the evacuation.例句：士兵们阻止撤离。
“prevent” somebody from + -ing“prevent”某人做某事The soldiers prevented the refugees from evacuating.例句：士兵们阻止难民们撤离。
prevent的用法例句1. A dentist may decide to extract the tooth to prevent recurrent trouble.牙医可能会决定拔掉那颗牙，以免反复发作。
prevent
pre.ventprevent的音标和读音：DJ音标发音：[priˈvent]KK音标发音：[prɪˈvɛnt]prevent的词性：v.（动词）prevented，preventing，preventsprevent的词性：v.tr.（及物动词）1. To keep from happening:预防：使防止发生：用法与例句：took steps to prevent the strike.采取步骤避免罢工2. To keep (someone) from doing something; impede: 阻碍：使（某人）不做某事；阻挠：用法与例句：prevented us from winning.阻挠我们获胜3.Archaic To anticipate or counter in advance.【古语】预先应付：事先预料或遇到4.Archaic To come before; precede.【古语】在…之前：在…之前来；先于prevent的词性：v.intr.（不及物动词）5. To present an obstacle:阻挠，阻止：呈现出阻碍：用法与例句：There will be a picnic if nothing prevents.如果没有特别的情况，我们将举行野餐prevent的词源：6. Middle English preventen [to anticipate]中古英语preventen [预料，预期]7. from Latin praeven o re praevent-源自拉丁语praeven o re praevent-8.prae- [pre-]prae- [前缀，在…之前]9.ven o re [to come] * see g w3-ven o re [来] *参见g w3-prevent的词性：n.（名词）prevent的词性：adj.（形容词）prevent的词性：n.（名词）【近义词】prevent，preclude，avert，obviate，forestall10. These verbs mean to stop or hinder something from happening, especially by advance planning or action.这些动词是指停止或阻挠某事的发生，尤指以预先的计划或行动来阻挠11.Prevent implies anticipatory counteraction:Prevent指预先阻止：用法与例句：“The surest way to prevent war is not to fear it” (John Randolph). To preclude is to exclude the possibility of the occurrence of an event or action:“阻止战争最有把握的方法是不要害怕” （约翰·伦道夫）。
prevent的短语有哪些
prevent的短语有哪些prevent表示预防; 阻碍; 阻止的意思，那么你知道prevent的短语有哪些吗?接下来小编为大家整理了prevent的短语搭配，希望对你有帮助哦!prevent的短语：prevent from(v.+prep.)阻止,防止 stop from; keep fromMy only idea was to prevent the woman from speaking.我唯一的想法就是不让那女人讲话。
I am very sorry that a previous engagement prevents me from accepting your kind invitation.很抱歉,因为我已另有约会不能接受你好意的邀请。
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。
prevent的短语例句：1. A dentist may decide to extract the tooth to prevent recurrent trouble.牙医可能会决定拔掉那颗牙，以免反复发作。
2. 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的用法与搭配
prevent的用法与搭配1. prevent + sb./sth. from + V-ing: 防止/阻止某人/某物做某事例句：The police took measures to prevent the protesters from entering the government building.警察采取措施防止抗议者进入政府大楼。
2. prevent + sb./sth. (from) + V-ing: 防止/阻止某人/某物（做）某事例句：Wearing a helmet can prevent head injuries in case of accidents.戴头盔可以预防意外时的头部受伤。
3. prevent + sb. + from + N/V-ing: 防止/阻止某人做某事例句：The manager prevented Tom from leaving the company.经理阻止了汤姆离开公司。
4. prevent + N/V-ing: 防止/阻止某事的发生例句：Regular exercise can prevent many diseases.定期运动可以预防很多疾病。
5. prevent + Sth.: 防止某事发生/进行例句：The government is taking steps to prevent the spread of COVID-19. 政府正在采取措施防止新冠肺炎的传播。
6. prevent + sb. + (from) + doing Sth.: 防止某人做某事例句：The teacher prevented the students from cheating on the exam. 老师防止学生在考试中作弊。
prevent的用法及搭配
prevent的用法及搭配预防的用法及搭配一、prevent的定义及基本用法二、prevent from的搭配用法1. prevent from + verb-ing2. prevent someone from + verb-ing三、prevent someone/something (from) doing四、形容词+ prevent 的搭配用法1. effectively/preventively prevent2. actively/passively prevent3. completely/partially prevent五、常见短语和习语中的prevent用法六、总结一、预防的定义及基本用法预防（prevent）一词源于拉丁词根prevenire，意为“先到达”或“提前采取行动”。
在英语中，prevent通常表示采取措施来避免某事发生或某人做某事。
作为一个动词，prevent可单独使用，也可与介词from连用。
下面将详细介绍prevent的常见搭配用法。
二、prevent from的搭配用法1. prevent from + verb-ing这种结构通常表达“阻止某人做某事”的意思。
例如：- The lock on the door prevents burglars from entering the house.（门上的锁能够阻止入室行窃者进入房屋。
）- Regular exercise can help prevent you from getting sick.（经常运动可以帮助你预防生病。
）2. prevent someone from + verb-ing这种结构表达“阻止某人做某事”的动作侧重于对特定个体的影响。
例如：- The teacher prevented the students from cheating during the exam.（老师阻止了学生们在考试中作弊。
prevented用法
prevented用法一、prevented的基本用法“prevented”是动词“prevent”的过去式和过去分词形式。
它的基本含义是阻止、妨碍某事发生或某人做某事。
可以是及物动词，后面直接跟宾语，宾语可以是名词、代词或者动名词形式。
二、prevented的固定搭配1. prevent sb. from doing sth.- 这是最常见的固定搭配，表示阻止某人做某事。
例如：The heavy rain prevented us from going out.（大雨阻止我们外出。
）2. prevent sth. from happening- 表示防止某事发生。
例如：The new law is designed to prevent crime from happening.（新法律旨在防止犯罪发生。
）三、双语例句1. My mother prevented me from eating too much junk food. She said, “You'll get sick if you keep gobbling up those chips like there's no tomorrow! Oh, my little glutton.”（我妈妈阻止我吃太多垃圾食品。
她说：“如果你像永远吃不够似的不停地吃那些薯片，你会生病的！哦，我的小馋猫。
”）2. The security guard prevented the thief from stealing the precious diamond. “You think you can just waltz in here and take it? Not on my watch!” he shoute d.（保安阻止小偷偷走珍贵的钻石。
“你以为你能大摇大摆地进来拿走它？有我在就不行！”他喊道。
）3. The bad weather prevented the plane from taking off on time. “Damn this fog! It's ruining everyone's travel plans,” a passengerplained.（恶劣的天气阻止飞机按时起飞。
prevent的例句
prevent的例句“Prevent 的例句大揭秘：让你巧妙避开麻烦！”嘿，大家好呀！Prevent 这个词呢，虽然看起来有点正式，但其实在我们生活中到处都能用到哦。
今天咱们就通过一大波例句，把它变得超级亲切！基础例句：1. He always wears a helmet to prevent head injuries. （他总是戴着头盔来防止头部受伤。
）2. Regular exercise can prevent many diseases. （经常锻炼可以预防很多疾病。
）3. Locking the door prevents burglars from entering. （锁上门可以防止小偷进入。
）4. She took some medicine to prevent getting a cold. （她吃了些药来预防感冒。
）5. Using sunscreen helps prevent sunburn. （涂防晒霜有助于防止晒伤。
）场景例句：生活场景1. Eating healthy foods prevents getting sick easily. （吃健康食物能防止容易生病。
）2. Wearing seatbelts prevents serious injuries in a car accident. （系安全带能防止在车祸中受重伤。
）职场场景1. Training employees well prevents mistakes in the work. （把员工培训好可以防止工作中出错。
）2. Setting clear rules prevents confusion among team members. （制定明确的规则可以防止团队成员之间的混乱。
）正式场合1. Strict security measures prevent any potential threats. （严格的安全措施防止任何潜在的威胁。
prevent现在进行时的被动语态的句子
prevent现在进行时的被动语态的句子Prevent主要用作及物动词,可接名词、代词或动名词作宾语,不接不定式作宾语。
用作prevent宾语的动名词前常有物主代词或者名词,人称代词宾格表示其逻辑主体。
Prevent:
阻止、阻碍、阻挠。
被动形式是：
prevent SB from doing STH阻止某人做某事。
介词from不能省略。
例句：
①Trees can prevent the water from washing the earth away.
树木能够阻止水把泥土冲走。
②Something must be done to prevent people from killing the wild animals.
必须采取措施阻止人们杀害野生动物。
③Those children were prevented from playing in the busy street.
那些孩子被阻止在繁忙的大街上玩耍。
prevent的用法和辨析
prevent的用法和辨析你们知道prevent的用法吗?我们一起来学习学习吧，下面就和大家分享，来欣赏一下吧。
词汇精选：prevent的用法和辨析一、详细释义：v.阻止，妨碍[I,T]例句：This discrepancy will prevent me from obtaining a visa.因为这一差错，我将得不到签证。
例句：The police have been trying to prevent them carrying weapons.警方一直都设法阻止他们携带武器。
预防，防止[I,T]例句：The solution then is to prevent the country from becoming a net debtor in the first place.解决这个问题，首先是要防止一个国家成为净债务国。
例句：These methods prevent pregnancy.这些方法能防止怀孕。
二、词义辨析：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。
三、参考例句：These methods prevent pregnancy.这些方法能防止怀孕。
These methods prevent pregnancy.这些方法能防止怀孕。
This will prevent leaning back.这将避免身体向后地倾斜。
prevent的用法及搭配
prevent的用法及搭配prevent的用法及搭配：prevent意为“阻止，防止”，既可以作及物动词，也可以作不及物动词。
一、及物动词：1. prevent sb./sth. from doing sth.表示“阻止某人/某事做某事”，其中from是介词，不可省略。
例句：The police prevented the demonstrators from entering the government building.警察阻止示威者进入政府大楼。
2. prevent sb./sth. doing sth.表示“阻止某人/某事做某事”，但doing前面的宾语要用逗号隔开。
例句：He tried to prevent me, an inexperienced driver, from making mistakes. 他试图阻止我这个没有经验的司机犯错误。
3. prevent sb. from (doing) sth.表示“使某人不能（做某事）”，doing可省略。
例句：His illness prevented him from attending the meeting. 他的病使他不能参加会议。
二、不及物动词：1. prevent sth. from happening表示“阻止某事发生”，from是介词，不可省略。
例句：We must take measures to prevent this disaster from happening again. 我们必须采取措施，防止这场灾害再次发生。
2. prevent sth. happening表示“阻止某事发生”，happening前面的宾语要用逗号隔开。
例句：We must do whatever we can to prevent a war, a terrible disaster, happening. 我们必须竭尽所能来防止发生战争，这场可怕的灾难。
prevent的用法及词组
prevent的用法及词组一、prevent的基本意义和用法（100字）Prevent是一个常见的英语动词，意为“阻止”，用于表示采取行动以防止某事发生或达成。
它可以用来表达各种含义，从简单的个人行为到广泛的社会影响都可以涵盖。
本文将探讨prevent在不同语境中的使用方法，并介绍几个常用的prevent词组。
二、预防疾病及传染病（200字）1. Prevent the spread of disease预防疾病传播In order to prevent the spread of contagious diseases, it is essential to practice good hygiene and maintain a clean environment. Regular hand washing, especially before meals and after using the restroom, can help prevent the transmission of germs. Additionally, covering your mouth and nose while coughing or sneezing can also help prevent the spread of respiratory infections.2. Preventative measures for diseases疾病预防措施Vaccinations are one of the most effective preventative measures against various diseases. By getting vaccinated, individuals not only protect themselves but also contribute to public health by preventing outbreaks. Regular exercise, a balanced diet, and sufficient rest are also important for maintaining a healthy immune system and preventing illness.三、减少环境污染（200字）1. Prevent pollution防止污染To prevent pollution, it is crucial to adopt environmentally friendly practices in our daily lives. Minimizing waste production by reusing and recycling materials, conserving water and energy, and properly disposing of hazardous substances are effective ways to prevent environmental pollution. Additionally, supporting renewable energy sources and advocating for stricter environmental regulations can have a positive impact on preventing pollution.2. Prevent air pollution预防空气污染To prevent air pollution, reducing the emissions from vehicles and industrial processes is vital. Promoting the use of public transportation, carpooling, or cycling can help reduce carbon emissions from cars. Switching to renewable energy sources and encouraging industries to adopt cleaner technologies are also effective measures in preventing air pollution.四、避免事故和灾难（200字）1. Accident prevention事故预防To prevent accidents, it is important to prioritize safety in all aspects of life. Adhering to traffic rules and wearing seatbelts while driving can significantly reduce the risk of road accidents. Following safety procedures at work and using protective equipment are essential in preventing workplace accidents. Regular maintenance of equipment and adherence to safety guidelines in various settings also contribute to accident prevention.2. Disaster prevention灾害预防Preventing natural disasters is challenging but not impossible. It involves various strategies such as early warning systems for tsunamis or hurricanes, proper urban planning to avoid building in high-risk areas prone to floods or landslides, and implementing effective emergency response plans at both national and local levels. Education on disaster preparedness and ensuring community participation in disaster mitigation efforts are also crucial for preventing loss of lives and minimizing damages.五、预防犯罪行为（200字）1. Crime prevention犯罪预防Crime prevention involves creating a safe environment by implementing measures that deter criminal behavior. Enhancing community policing initiatives encourages collaboration between law enforcement agencies and the public, leading to improved crime detection and prevention. Installing surveillance systems, promoting awareness about home security, and educating individuals on personal safety measures are effective strategies in preventing crimes.2. Prevent juvenile delinquency预防青少年犯罪Preventing juvenile delinquency requires a multifaceted approach involving the family, schools, and community organizations. Providing positive role models, offering educational and recreational opportunities, and promoting social inclusion can help prevent young people from engaging in criminal activities. Early intervention programs and counseling services can also contribute to preventing juvenile delinquency by addressing underlying issues that may lead to criminal behavior.六、总结（100字）Prevent一词可以应用于各种场合，从个人行为到社会问题，它都扮演着重要的角色。
prevent 用法
prevent 用法1. Prevent can be used as a verb to mean "to stop something from happening or from doing something."Example: The security guard prevented the thief from escaping.2. Prevent can also be used as a noun to refer to something that stops or hinders an action or event.Example: The weather conditions were a prevent to the outdoor concert.3. Preventative can be used as an adjective to describe something that is done to avoid or stop something from happening.Example: Regular exercise and a healthy diet are preventative measures against heart disease.4. The phrase "preventive medicine" refers to medical practices that aim to prevent illnesses or diseases before they occur, rather than treating them after they have occurred.Example: The doctor recommended regular check-ups as part of a preventive medicine approach.5. The verb "prevent" can also be used with specific phrases, such as "prevent someone from doing something," "prevent something fromhappening," or "prevent something/someone doing something." Example: The new policy will prevent employees from accessing social media websites during work hours.。
prevent的用法和辨析
prevent的用法和辨析你们知道prevent的用法吗?我们一起来学习学习吧，下面我就和大家共享，来观赏一下吧。
词汇精选：prevent的用法和辨析一、具体释义：v.阻挡，阻碍[I,T]例句：This discrepancy will prevent me from obtaining a visa.由于这一差错，我将得不到签证。
例句：The police have been trying to prevent them carrying weapons.警方始终都设法阻挡他们携带武器。
预防，防止[I,T]例句：The solution then is to prevent the country from becoming a net debtor in the first place.解决这个问题，首先是要防止一个国家成为净债务国。
例句：These methods prevent pregnancy.这些方法能防止怀孕。
二、词义辨析：block,bar,hinder,obstruct,prevent,hamper这些动词均含有“阻挡、堵塞”之意。
block语气剧烈，指有效堵住了通道，使人或物无法通过。
bar含义与block很接近，指堵塞通道或禁止出入，但有对示意不用障碍物的阻挡或禁止。
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，指实行预防措施或设置障碍去阻挡某人或某事。
hamper侧重因受到约束或阻碍而造成的行动困难。
三、参考例句：These methods prevent pregnancy.这些方法能防止怀孕。
These methods prevent pregnancy.这些方法能防止怀孕。
This will prevent leaning back.这将避开身体向后地倾斜。
prevent是什么意思
prevent是什么意思在日常生活中，我们经常会遇到prevent这个词，我们对它的理解可能只是简单的“阻止”或“防止”。
但是，prevent在实际应用中有着更加丰富的含义和用法。
本文将深入探讨prevent的意思及其在不同领域的具体应用。
首先，让我们来看看prevent在字典中的定义。
根据牛津词典的解释，prevent是及物动词，意味着“采取行动来防止某事发生”。
它的起源可以追溯到拉丁语的praevenire，意为“在前面来”。
这个词的本意就是指在某件事情发生之前采取措施来防止它的发生。
在日常生活中，我们可以通过一些具体的例子来理解prevent的含义。
比如，我们常说的“预防疾病”，其实就是指采取一系列的措施来防止疾病的发生或者扩散。
这包括接种疫苗、保持良好的卫生习惯、定期体检等。
通过这些预防措施，我们可以减少患病的风险，保持健康的身体。
除了在个人健康方面，prevent在社会问题上也有着广泛的应用。
一个明显的例子就是犯罪预防。
当我们谈论犯罪预防时，我们指的是通过加强警力巡逻、推动社会福利政策、提供教育机会等多种手段来减少犯罪的发生。
通过这些措施，我们可以创造一个更加安全的社会环境，让每个人都能够生活在一个没有犯罪威胁的社会中。
prevent的含义在商业领域中也得以体现。
一个常见的用法是“防止盗窃”。
商家通常会采取各种措施来防范盗窃，例如安装监控摄像头、雇佣保安人员、设置警报系统等。
这些措施的目的是为了阻止盗窃事件的发生，并保护商家的财产和利益。
此外，prevent也被广泛用于技术领域。
例如，在计算机安全中，我们常听到“防止黑客攻击”的说法。
这意味着采取一系列措施来保护计算机系统免受黑客的入侵和攻击，例如使用强密码、更新软件补丁、安装防火墙等。
通过这些防护措施，我们可以防止黑客获取敏感信息，保护个人和组织的数据安全。
总结起来，prevent这个词包含了预防、防止、阻止等意思。
它在个人生活、社会问题、商业领域以及技术安全等领域都有着广泛的应用。
prevent谐音法记单词
prevent谐音法记单词
【释义】
prevent
v.阻止，阻碍；防止，预防；设置障碍
第三人称单数prevents
现在分词preventing
过去式prevented
过去分词prevented
【短语】
1prevent from
预防;阻止;防止;防备
2Hard to prevent
防不胜防
3Able to prevent
拦不住
4prevent and control pollution
防治污染;预防和控制污染
5prevent an overheated economy
防止经济过热
6Prevent Restore
彻底删除文件;彻底删除文件工具;卸载软件;强力文件删除软件
7prevent moisture
防潮;防湿
8Prevent false bankruptcy
防止假破产
9prevent doing sth
阻止做某事
【例句】
1These methods prevent pregnancy.
这些方法预防怀孕。
2We are taking steps to prevent pollution.
我们正在采取措施防止污染。
3Regular exercise helps prevent weight gain.
经常锻炼有助于防止体重增加。
4Precautions had to be taken to prevent pilfering.应采取预防措施来避免偷窃。
5The floor is sealed to prevent water penetration.地板加了密封涂料防止渗水。
prevent的用法和辨析
一、详细释义：
v.
阻止，妨碍[I,T]
例句：
This discrepancy will prevent me from obtaining a visa.
因为这一差错，我将得不到签证。
例句：
The police have been trying to prevent them carrying weapons.
警方一直都设法阻止他们携带武器。
预防，防止[I,T]
例句：
The solution then is to prevent the country from becoming a net debtor in the first place.
解决这个问题，首先是要防止一个国家成为净债务国。
例句：
These methods prevent pregnancy.
这些方法能防止怀孕。
二、词义辨析：
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。
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prevent的相关用法篇一：preventpre.ventprevent的音标和读音：DJ音标发音：[pri?vent]KK音标发音：[pr??v?nt]prevent的词性：v.（动词）prevented，preventing，preventsprevent的词性：v.tr.（及物动词）1. To keep from happening:预防：使防止发生：用法与例句：took steps to prevent the strike.采取步骤避免罢工2. To keep (someone) from doing something; impede: 阻碍：使（某人）不做某事；阻挠：用法与例句：prevented us from winning.阻挠我们获胜3. Archaic To anticipate or counter in advance. 【古语】预先应付：事先预料或遇到4. Archaic To come before; precede.【古语】在…之前：在…之前来；先于prevent的词性：v.intr.（不及物动词）5. To present an obstacle:阻挠，阻止：呈现出阻碍：用法与例句：There will be a picnic if nothing prevents.如果没有特别的情况，我们将举行野餐prevent的词源：6. Middle English preventen [to anticipate]中古英语preventen [预料，预期]7. from Latin praevenore praevent-源自拉丁语praevenore praevent-8. prae- [pre-]prae- [前缀，在…之前]9. venore [to come] * see g w3-venore [来] *参见g w3-prevent的词性：n.（名词）prevent的词性：adj.（形容词）prevent的词性：n.（名词）【近义词】prevent，preclude，avert，obviate，forestall10. These verbs mean to stop or hinder something from happening, especially by advance planning or action.这些动词是指停止或阻挠某事的发生，尤指以预先的计划或行动来阻挠11. Prevent implies anticipatory counteraction:Prevent 指预先阻止：用法与例句：“The surest way to prevent war is not to fear it” (John Randolph). To preclude is to exclude the possibility of the occurrence of an event or action:“阻止战争最有把握的方法是不要害怕” （约翰·伦道夫）。
Preclude 指排除某事或行为发生的可能性：用法与例句：“a tranquillity which . . . his wife's presence would have precluded” (John Hey Newman). To avert is to ward off something about to happen:“他妻子的出现使宁静成为不可能” （约翰·亨利·纽曼）。
Avert 是指阻止将要发生的事情：用法与例句：Only quick thinking on the pilot's part averted a disastrous accident.只有这位飞行员的机智才能阻止这样可怕事件的发生。
12. Obviate implies that something, such as a difficulty, has been anticipated and disposed of effectively:Obviate 暗指某物，如困难已经被预料到且被有效地排除掉：用法与例句：“the objections . . . having . . . been obviated in the preceding chapter” (Joseph Butler).“反对意见…已经…在前一段时间被排除了” （约瑟夫·巴特勒）。
13. Forestall usually suggests anticipatory measures taken to counteract, neutralize, or nullify the effects of something:Forestall 通常指预先采取措施来消除，中和或抵消某事的后果：用法与例句：We installed an alarm system to forestall break-ins.我们安装了一套警报系统来预防小偷的闯入篇二：介词to的常见用法一、介词to的常见用法1.动词+toa）动词+ toadjust to适应，attend to处理；照料，agree to赞同，amount to加起来达…，belong to属于，come to达到，drink to为…干杯，get to到达，happen to发生在某人身上，hold to紧握，lead to通向，listen to听，occur to想起，object to反对，point to指向，respond to回答，refer to参考；指的是…；涉及，reply to回答，see to负责，stick to坚持，turn to求助，write to给某人写信。
b）动词（+sth.）+to+sb.announce to通知某人，describe to向某人描述，explain to向某人解释，express to对某人表达，mention to提及，nod to向某人点头，report to报告，say to告知，shout to对某人大叫，suggest to 对某人提建议，speak to与某人交谈，talk to跟某人谈话，whisper to 和某人低声耳语。
c）动词+sth./sb.+ to +sth./sb.add to增加，compare to比作，carry to运送至，devote to致力于，introduce to介绍给，invite to邀请参加，join to连接到，leave to委托给，reduce to下降至，sentence to判处，take to带到。
2. be +形容词/过去分词+ tobe alive to觉察；晓得，be attentive to注意；留心，be awake to 知晓，be blind to缺乏眼光，be close to紧挨着，be common to对某人来说很普通，be contrary to违反；反对，be devoted to致力，be deaf to不愿意听，equal to有…的力量，be exposed to暴露；遭受，befair to对…公平，be familiar to对某人来说熟悉，be grateful to对某人心存感激，be good to对…有好处，be harmful to对…有危害，be important to对…重要，be kind to友好对待，be known to周知于，be married to嫁给，be moved to转移到，be near to靠近，be necessary to对…有必要，be opposite to在对面，be opposed to反对，be pleasant to合某人之意，be proper to专属，be polite to礼貌待人，be rude to 粗暴对待，be relative to与…有关，be strange to不习惯，be similar to 类似，be suitable to适合，be true to忠实，be thankful to感激，be useful to对…有用，be used to习惯。
3.to+名词构成的词组to a degree在某种程度上，to date到现在为止，to one‘s feet跳起来，to one’s mind照…看来，to one‘s surprise使…吃惊，to one’s taste 符合胃口，to oneself独自享用，to order定做，to the letter不折不扣地，to the point中肯地二、at的常见用法at构成的词组比较多，要细心区分。
1.动词+ atarrive at抵达，call at访问某地，catch at（it）当场抓住，come at攻击，fire at向…开火，glance at瞟一眼，glare at怒目而视，grieve at忧伤，knock at敲，laugh at嘲笑，look at看一眼，pull at拉扯，rejoice at对…高兴，smile at向某人微笑，shoot at朝…射击，stare at怒目而视，thrust at刺向，tear at撕，tremble at颤抖，wonder at吃惊，workat工作。
2. be +形容词/过去分词+ atbe angry at恼怒于，be alarmed at对…保持警觉，be astonished at 对…吃惊，be bad at不擅长，be clever at对某事很灵巧，be delighted at高兴，be disgusted at厌恶，be disappointed at对…失望，be good at 擅长，be impatient at对…不够耐心，be mad at狂热于，be pleased at 对…感到高兴，be present at出席，be satisfied at满意，be surprised at 吃惊，be shocked at对…非常震惊，be terrified at受到…的恐吓，be quick at对…很机敏。
3.at+名词构成的词组at a distance在一定距离，at a loss不知所措，at a time一次，at all一点也不，at any cost不惜一切代价，at best最好也只是，at first 起初，at hand手头，at heart在内心里，at home在家；无拘束，at last最后，at least至少，at most最多，at once马上，at present 目前。