时间: 2025-04-23 23:40:36
美: [flæʃ]
英: [flæʃ]
vt. 使闪光；反射
n. 闪光，闪现；一瞬间
vi. 闪光，闪现；反射
adj. 闪光的，火速的
n. (Flash)人名；(西)弗拉什
最后更新时间:2025-04-23 23:40:36
词源分析：Flash 源自古英语 "flaescian"，意指“发光”或“闪烁”。它由词根 "flash" 演变而来，没有明显的前缀和后缀。
历史背景：Flash 的首次记录可追溯到 14 世纪，用于描述光线的瞬间变化，后逐渐扩展至比喻意义。
课本：该词可能在*的中学英语教材中出现，适合初中到高中生的学；在牛津和美国的教材中，通常在初中和高中阶段的阅读与写作训练中出现。
正式与非正式语境：
特殊场合：在科技领域，flash 常用于描述闪存技术；在法律上，可能用于形容快速的证据呈现。
The flash of the camera captured the moment perfectly.
（相机的闪光完美捕捉了那一刻。）
A sudden flash of inspiration hit me during the meeting.
（在会议期间，我突然灵感闪现。）
The flash of lightning illuminated the dark sky.
（闪电照亮了黑暗的天空。）
She wore a bright dress that had a flash of red.
（她穿着一件亮丽的裙子，上面有一道红色的闪光。）
The flash drive is a convenient way to store data.
（闪存驱动器是一种便捷的数据存储方式。）
同义词：
反义词：
音标记忆法：Flash 的音标为 /flæʃ/。可以将发音分为“fl” + “ash”，联想成“飞速闪现”的感觉，通过发音记忆其含义。
谐音联想记忆：可以把 flash 记作“飞来闪”，联想为闪电飞快地划过天空，帮助记忆这个词的意思。
通过上述的学分析，学者可以更全面地理解和运用单词 "flash"。
[N-COUNT] A flash is a sudden burst of light or of something shiny or bright. 闪光
例：A sudden flash of lightning lit everything up for a second.突然的一道闪电刹那间把一切照亮了。
例：The wire snapped at the wall plug with a blue flash.随着一道蓝色的闪光，墙上插座处的电线啪地一声断了。
[V-T/V-I] If a light flashes or if you flash a light, it shines with a sudden bright light, especially as quick, regular flashes of light. 闪光
例：Lightning flashed among the distant dark clouds.远处的乌云中电光闪闪。
例：He lost his temper after a driver flashed her headlights as he overtook.他因为在超车时一个女司机闪车头灯而大为光火。
[V-I] If something flashes past or by, it moves past you so fast that you cannot see it properly. 飞驰
例：It was a busy road, cars flashed by every few minutes.这是条繁忙的公路，每隔几分钟就有一些汽车飞驰而过。
[V-I] If something flashes through or into your mind, you suddenly think about it. 闪现
例：A ludicrous thought flashed through Harry's mind.一个可笑的想法在哈里的脑子里闪过。
[[非正式]] If you flash something such as an identification card, you show it to people quickly and then put it away again. 快速亮一下 (证件等)
例：Halim flashed his official card, and managed to get hold of a soldier to guard the Land Rover.哈利姆亮了他的证件，并设法找来一名士兵守卫那辆路虎越野车。
[V-T/V-I] If a picture or message flashes up on a screen, or if you flash it onto a screen, it is displayed there briefly or suddenly, and often repeatedly. 使闪现; 闪现
例：The figures flash up on the scoreboard.数字闪现在记分牌上。
例：The words "Good Luck" were flashing on the screen.“祝你好运”的字样正在屏幕上闪现。
[[书面]] If you flash a look or a smile at someone, you suddenly look at them or smile at them. 突然投去 (一瞥或一笑)
例：I flashed a look at Sue.我突然瞥了休一眼。
[N-UNCOUNT] Flash is the use of special bulbs to give more light when taking a photograph. 闪光灯
例：He was one of the first people to use high speed flash in bird photography.他是鸟类摄影中最先使用高速闪光灯的人之一。
[[非正式]] A flash is the same as a . 手电筒
例：Stopping to rest, Pete shut off the flash.停下来休息的时候，皮特关掉了手电筒。
[PHRASE] If you say that something happens in a flash, you mean that it happens suddenly and lasts only a very short time. 转瞬间
例：The answer had come to him in a flash.他一下子就有了答案。
[PHRASE] If you say that someone reacts to something quick as a flash, you mean that they react to it extremely quickly. 反应神速地
例：Quick as a flash, the man said, "I have to, don't I?"那人反应神速地说：“我不得不这么做，是不是？”