记忆方法
联想：不得了啦，发生一个紧急的大事件了，隔壁一个嬷嬷用针扎死了阿姨，这可真的是一个大事件，太意外了。
双解例句
小知识
When there's an emergency, the stakes are high and you may need to act quickly. There's a tornado! Someone's collapsed! The cat's stuck in a tree! It's an emergency! Call 911!
You can see the word emerge in emergency, and an emergency suddenly emerges — it happens all of a sudden and can take you by surprise. Governments declare a “state of emergency” if there is a disaster that they can't handle, and they need support. If you hear sirens and see flashing lights, there's probably an emergency . . . unless you're in a dance club.
实用短语
常用短语
单词用法
emergency response 应急响应
in emergency 在紧急情况下
emergency treatment 急诊；急症治疗
这组词都有“危急”的意思，其区别是：
emergency多指突然发生的出乎意料的紧急情况或事故。
crisis含义广泛，可指国家存亡、历史、经刘或人的生命、疾病等面临危急关头。也可指好的或恶化的转折点。
词根词缀
词根: merg
=sink,表示”沉,没”
adj.
emergent 紧急的, 浮现的, 突然出现的, 自然发生的emerge[v.浮现]+ent表形容词→突然出现的→紧急的
n.
emergence 出现emerge[v.浮现]+ence表名词→emergence出现
emergency 紧急情况,突然事件,非常时刻emerge[v.浮现]+ency表名词→突然出现的事情
v.
emerge 浮现e出+merg投入;淹没+e→淹没的东西出现→浮现
immerge 浸入,浸没,隐没,埋头im进入+merg沉,没+e→沉进去→沉入
merge [使]结合,[使]合并,[使]合为一体merg沉,没+e→沉下→融为一体→合并
submerge 沉没,淹没sub在下面+merg淹没+e→淹没下去
后缀: -ency
表名词,ence的变体,”性质,状态”
n.
complacency 自满,自得com全部+plac平静+ency性质,状态→身心平静→自满
deficiency 缺乏,不足;缺点,缺陷de去掉+fici做+ency性质,状态→做得不够→缺点,缺陷
efficiency 效率;功效ef出+fici做+ency性质,状态→能做出事来→效率
latency 潜伏期lat=last持续+ency性质,状态→n.潜伏期
persistency 固执,持续persist坚持+ency性质,状态→n.固执,持续
solvency 溶解力,还债能力solv溶解+ency性质,状态→n.溶解力,还债能力
sufficiency 充分,充分的数量,足够的资力suffice充足,足够+ency性质,状态→sufficiency
emergency 紧急情况,突然事件,非常时刻emerge浮现+ency性质,状态→emergency→突然出现的事情