sth upsurges
不及物动词，主语常为情绪、需求等抽象名词，后面不直接跟宾语。
Public anger upsurges whenever the topic is raised.
每当提及这个话题，公众的愤怒就会高涨。
激增；猛涨；高涨；上升
upsurged — past of upsurge
上升或变得更强大；涌起
to surge up or become stronger or greater; to increase suddenly and sharply
上升或变得更强大
to surge up, or to become stronger or greater
一般现在时
Energy demand upsurges when temperatures drop sharply.
气温骤降时，能源需求会急剧上升。
一般过去时
Violence upsurged in the region after the ceasefire collapsed.
停火破裂后，该地区的暴力事件急剧增加。
现在完成时
Interest in renewable energy has upsurged over the past decade.
过去十年间，人们对可再生能源的兴趣急剧上升。
作动词时多为正式、书面用法，表示“急剧上升”或“增强”；也可作名词，注意重音相同。
Electricity prices often upsurge during the hottest weeks of summer.
在夏季最热的几周里，电价常常大幅上涨。
用法提示：本句用动词原形 upsurge 表示价格“急剧上升”。
Support for the proposal is upsurging among local residents.
当地居民对这项提议的支持正在高涨。
用法提示：本句用现在分词 upsurging 构成进行时，表示支持“正在上升、增强”。
The number of visitors upsurged after the town opened its new museum.
这座小镇的新博物馆开放后，游客人数骤然增加。
用法提示：本句用过去式 upsurged 表示数量“突然增多”。
不及物动词，主语常为情绪、需求等抽象名词，后面不直接跟宾语。
Public anger upsurges whenever the topic is raised.
每当提及这个话题，公众的愤怒就会高涨。
可与表示来源的介词短语连用，说明情绪或力量从何处涌起。
A wave of protest upsurged from the crowd.
人群中涌起了一波抗议浪潮。
grammar · medium
易错句子The new tax policy upsurged prices.
正确表达The new tax policy caused prices to upsurge.
upsurge 是不及物动词，不能直接带宾语；表示“使……激增”要用 cause/make 等使役结构，或改说 Prices upsurged after the new tax policy。
grammar · medium
易错句子Prices upsurged up sharply after the announcement.
正确表达Prices upsurged sharply after the announcement.
upsurge 本身已含“向上涌、猛涨”的意思，后面不能再加 up；它是普通不及物动词，不是 upsurge up 这样的短语动词。
grammar · medium
易错句子Public anger upsurge whenever such news appears.
正确表达Public anger upsurges whenever such news appears.
一般现在时中第三人称单数主语 public anger 后，动词要加 -s，用 upsurges，不能用原形 upsurge。
surge 是常用动词，强调突然、有力地向前或向上涌动，可指人群、情绪、电流、价格等；upsurge 作动词极少见，多作名词表示“高涨、激增”，因此日常说“突然上涨”通常用 surge，而不用 upsurge。
swell 强调体积、数量或规模逐渐增大，常指水体、声音、人群或总数；upsurge 作动词侧重突然向上涌起或力量增强，语义更猛烈，也更书面、更罕见。
escalate 指事态、冲突、成本等逐步升级或加剧，含有阶梯式恶化的意味；upsurge 作动词强调突然涌起或变强，不强调逐步升级的过程。
surge (base root)
re- + surge
re- + surg(e) + -ence
in- + surg(e) + -ent
in- + surg(e) + -ency
counter- + insurgency
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