音标：['impitәs] ；柯林斯词典等级：1 级；

n. 动力, 推动力, 动量
[医] 冲动, 动能, 起始(病)

n a force that moves something along
n the act of applying force suddenly

考试类型：[六级/考研/托福/IELTS/GRE]

词性分布：

名词100%

impetus的用法和样例：

例句

用作名词(n.)

His articles provided the main impetus for change.他的那些文章是促进变革的主要推动力。
The present conflict may provide fresh impetus for peace talk.目前的冲突可能会给和谈提供新的推动力。
Her speech gave an impetus to my ideas.她的讲话激发了我的思绪。
His articles provided the main impetus for change.他的那些文章是促进变革的主要推动力。
The historic strike gave an enormous impetus to the whole American labor movement.这次历史性的罢工对整个美国的劳工运动起了很大的推动作用。

常见句型

用作名词(n.)

The Civil War provided an impetus to Michigan's growth.南北战争推动了密歇根州的发展。
Her speech gave an impetus to my ideas.她的演说激励了我的思想。
This is the primary impetus behind the economic recovery.这是促使经济复苏的主要动力。

词汇搭配

用作名词 (n.)

动词+～

gain〔receive〕 impetus获得动力,受到推动
give〔lend〕 an impetus to推动,刺激,促进

形容词+～

fresh impetus新动力
huge〔powerful〕 impetus巨大〔有力〕的推动
timely impetus及时的促进
enormous impetus极大的推动力
primary impetus主要推动力

介词+～

under the impetus靠…的动力

～+介词

impetus from来自…的推动力
impetus of a cannon ball炮弹的力量

经典引文

The current..takes its impetus and gathers speed Only beyond the sluice-gate.
出自：A. Thwaite

【近义词】

push推
momentum势头
thrust刺
stimulus刺激
stimulant兴奋剂
signal信号
force武力
impulse冲动
impulsion冲动
driving force驱动力
motivation动机
incentive刺激的
energy精力
drive开车
spur支脉
will决心
forward motion工作进程
motion移动
driving驾驶
movement活动
drift漂流

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