音标：[ә'lɑ:m] ；柯林斯词典等级：3 级；牛津三千核心词汇；

n. 惊恐, 警报, 警钟
vt. 使惊恐, 警告
[计] 报警信号

n. fear resulting from the awareness of danger
n. a device that signals the occurrence of some undesirable event
n. an automatic signal (usually a sound) warning of danger
v. warn or arouse to a sense of danger or call to a state of preparedness

词型变化：名词复数形式 : alarms ; 过去分词 : alarmed ; 过去式 : alarmed ; 现在分词 : alarming ; 第三人称单数 : alarms
考试类型：[高考/四级/考研/托福/IELTS]

词性分布：

名词78%

动词22%

alarm的用法和样例：

例句

用作名词(n.)

The proceedings were interrupted by the fire alarm.会议的进程被火灾警报打断了。
The instant they heard the alarm, they fell in for action.他们一听到警报，就立即集合准备战斗。
The smoke triggered off the alarm.这些烟把警报器触响了。
In case of fire, ring the alarm bell.如遇失火，请按警铃。
Her face was distorted with alarm.她的脸吓得变了样。
The threat of an epidemic caused great alarm.流行病使人人心惶惶。
The rumours of a petrol shortage turned out to be a false alarm.汽油短缺的谣传原来是一场虚惊。

用作及物动词(vt.)

Alarm everyone quickly because the house is full of smoke.快警告大家,屋子理都是烟。
We were much alarmed by the fire in the forest.森林失火使我们大为惊慌。
We do not want to alarm the guest.我们不想让客人受到惊吓。
Audio, lighting and reversing alarm function.有声，灯光报警及倒车功能。
Fast advance for time and alarm time set.快速预约时间及报警时间设定。

常见句型

用作名词(n.)

He is afraid of waking up late, and so he always has an alarm on his bedside table.他怕醒晚了,总是在床头桌上放一个闹钟。
Three fire companies answered the alarm.听到警报后,三个消防队都来了。
There were several alarms during the night.夜间有好几次报警。
He jumped up in alarm.他惊慌地跳了起来。
I hope you didn't take alarm at the news.我希望你听到这消息没有吃惊。

用作动词(v.)

S+ ～+n./pron.

Don't alarm yourself.不要焦虑不安。
Alarm everyone quickly, the house is full of smoke.赶快把大家弄醒,这房子里全是烟。
I don't want to alarm you, but there's a strange man in your garden.我不想让你惊慌,但你的花园里有个陌生男人。
The noise of the shot alarmed them.枪声惊动了他们。
The spread of cholera alarmed the whole city.霍乱流行使全城的人都恐慌起来。
The sight of smoke alarmed the night porter.旅馆夜班接待员看到冒烟就惊恐起来。
The breaking of a branch under my foot alarmed the deer.我踩断了一根树枝,把那头鹿吓惊了。
The noise of the shot alarmed hundreds of birds.枪声惊起了数百只鸟。
He crossed the river and alarmed the guerrillas.他过河向游击队报了警。
The sentry alarmed the sleeping men.步哨鸣警,惊醒了睡觉的士兵。

They were alarmed.他们惊慌起来了。
I was quite alarmed last night at the cry of “fire”.昨晚我听到喊“着火了”而大为惊恐。
Everybody was alarmed at the news that war might break out.大家听到战争可能爆发的消息都很恐慌。
She was alarmed at the plane crash.她听到飞机失事而惊惶不安。
They were much alarmed at seeing the fire.他们见到这火大为惊恐。
You should not be alarmed at what you just heard.你不应为刚才听到的事情而诧异。
We were much alarmed by a fire in the neighborhood.邻里的火灾使我们甚感惊慌。
I am alarmed by your irresponsible attitude.你这种不负责任的态度使我吃惊。
He was alarmed over his father's death.他父亲的死使他惊恐不安。
He became alarmed over the situation.他对形势担忧起来。
He is alarmed for the safety of his younger brother.他为弟弟的安全担心。
The enemy commander was alarmed to learn that his troops had been surrounded.敌军指挥官听说自己的部队已被包围时惊恐万状。
He is alarmed that you're hospitalized.他听说你生病住院,感到不安。

其他

An alarming film was shown in this theatre.这家影院上映了一部令人恐慌的电影。

词汇搭配

用作名词 (n.)

动词+～

activate an alarm开动警报器
deactivate an alarm关闭警报器
give an alarm发出警报
raise an alarm发出警报
send in an alarm发出警报
set (off) an alarm开动警报器,拨闹钟
turn off an alarm关上闹钟

形容词+～

false alarm虚惊
great alarm极大的恐慌
several alarms好几次警报
silent alarm无声警报

名词+～

air-raid alarm空袭警报
burglar alarm防盗警报器
fire alarm火警,防火警报器
smoke alarm烟警

～+名词

alarm bell警铃
alarm call紧急集合号

介词+～

jump up in alarm惊慌地跳了起来
with alarm恐惧地

～+介词

alarm at对…的惊恐

用作动词 (v.)

～+副词

alarm abruptly突然地警告
alarm exceedingly大惊失色
alarm fearfully可怕地警告
alarm groundlessly无理由地警告
alarm incessantly持续不断地警告
alarm sincerely严肃地警告
alarm seriously严重地警告
alarm unnecessarily不必要地警告
alarm vaguely不清楚地警告

～+介词

feel alarmed about the cholera对霍乱流行产生恐慌
get alarmed about对…大惊小怪,对…感到吃惊
be alarmed at the prospect of对…前途感到惊恐
be alarmed at receiving the telegram因收到电报而惊慌
be alarmed by被…吓一跳
be alarmed by a sudden attack因受到突然袭击而惊恐万状
become alarmed over a situation对形势感到惊慌

经典引文

Babbitt roused, his stomach constricted with alarm.
出自：S. Lewis
The townes all about range their belles alarum.
出自：Ld Berners
Strike alarum, drums!
出自：Richard III,Shakespeare
Auxiliaries. Alarm! Alarm! Centurion. What now? has the old woman attacked you again?
出自：G. B. Shaw

【近义词】

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