upsurge
用法要点
句型搭配
upsurge 常与介词 in 连用，表示在某个领域或方面的增长，如 an upsurge in demand（需求激增）。
语域说明
upsurge 多用于正式或书面语境，如新闻报道、学术论文或商务报告，描述显著变化。
介词用法
除了 in，upsurge 也可与 of 搭配，强调增长的内容或来源，如 an upsurge of support（支持的高涨）。
基础例句
There has been an upsurge in online shopping since the pandemic started.
自疫情开始以来，网上购物出现了激增。
We saw an upsurge in volunteer applications after the charity event.
慈善活动后，我们看到了志愿者申请的急剧增加。
The team experienced an upsurge in morale after winning the match.
赢得比赛后，团队的士气高涨。
高级例句
The economic report highlights a significant upsurge in foreign investment this quarter.
经济报告强调了本季度外国投资的显著增长。
Researchers observed an upsurge in climate activism following the latest environmental summit.
研究人员观察到，在最近的环境峰会后，气候行动主义出现了高涨。
The company's profits showed a dramatic upsurge due to innovative marketing strategies.
由于创新的营销策略，公司的利润出现了戏剧性的增长。
高频搭配
verb
adjective
noun
adverb
preposition
phrase
常见错误
错误使用了介词 on，正确应为 in，表示在某个方面的增长。
upsurge 本身已隐含快速或突然的含义，无需额外用 quickly 修饰，应使用形容词如 sudden 来描述。
近义词辨析
surge
surge 更强调快速、猛烈的上升，常用于物理或比喻性增长，而 upsurge 更正式，多指情绪或活动的突然高涨。
A surge in electricity demand caused blackouts. (电力需求激增导致停电。) vs. An upsurge in patriotism was evident after the national holiday. (国庆节后，爱国主义情绪明显高涨。)
increase
increase 是通用词，指任何程度的增长，而 upsurge 特指突然、显著的增加，带有情感或强度色彩。
There was a steady increase in population over the decade. (过去十年人口稳步增长。) vs. The upsurge in protests caught the government by surprise. (抗议活动的高涨让政府措手不及。)