impulse
音标发音
- 英式音标 [ˈɪm.pʌls]
- 美式音标 [ˈɪmˌpʌls]
- 国际音标 ['impʌls]
- 英式发音
- 美式发音
基本解释
- n.冲动；心血来潮；神经冲动；[物]冲量；[电]脉冲
- vt.推动
词源解说
- 15世纪初期进入英语，直接源自拉丁语的impulsus，意为推动，冲动。
词根记忆
- im(使…) + puls(推) + e→推动，驱使
- im(使) + puls(驱动) + e→推动
- im(使…) + puls(推) + e→冲动
- im(在内) + puls(推) + e→在内推→动力
- im(使…) + puls(推) + e→推动→冲动
同根派生
- adj性质的同根词
- impulsive：冲动的；受感情驱使的；任性的。
- adv性质的同根词
- impulsively：有推动力地。
- n性质的同根词
- impulsiveness：冲动。
- impulsion：冲动；冲击；原动力。
用法辨析
- impulse用作名词,意思是“冲动,突然的想法”,后面常接动词不定式作其定语,但不可接动名词。
- impulse作“一时的想法,突然的想法”解时,是可数名词,可接动词不定式作表语。
n. (名词)
词组短语
- feel an impulse 情不自禁想
- follow an impulse 凭一时冲动
- give an impulse 促进
- receive an impulse 受到刺激
- blind impulse 盲目的冲动
- fresh impulse 新的刺激
用作名词 (n.)
动词+～
形容词+～
英英字典
- (WISH) a sudden strong wish to do something
- (SIGNAL) a short electrical, radio, or light signal that carries information or instructions between the parts of a system
- (REASON) something that is the driving force behind or reason for something else
- An impulse is a sudden desire to do something.
- An impulse is a short electrical signal that is sent along a wire or nerve or through the air, usually as one of a series.
- An impulse buy or impulse purchase is something that you decide to buy when you see it, although you had not planned to buy it.
- If you do something on impulse, you suddenly decide to do it, without planning it.
剑桥英英字典
柯林斯英英字典
专业释义
- 冲量
- 脉冲
- 冲激
- 冲量
- 冲量
- 冲击
- 脉冲
- 冲动
- 冲动
- 脉冲
- 冲动
- 冲动;搏动;脉冲
- 脉冲
- 冲量
- 冲量