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.沖動；心血來潮；神經沖動；[物]沖量；[電]脈沖
- vt.推動
词源解说
- 15世紀初期進入英語，直接源自拉丁語的impulsus，意爲推動，沖動。
词根记忆
- im(使…) + puls(推) + e→推動，敺使
- im(使) + puls(敺動) + e→推動
- im(使…) + puls(推) + e→沖動
- im(在內) + puls(推) + e→在內推→動力
- im(使…) + puls(推) + e→推動→沖動
同根派生
- adj性質的同根詞
- impulsive：沖動的；受感情敺使的；任性的。
- adv性質的同根詞
- impulsively：有推動力地。
- n性質的同根詞
- impulsiveness：沖動。
- impulsion：沖動；沖擊；原動力。
用法辨析
- impulse用作名詞,意思是“沖動,突然的想法”,後麪常接動詞不定式作其定語,但不可接動名詞。
- impulse作“一時的想法,突然的想法”解時,是可數名詞,可接動詞不定式作表語。
n. (名詞)
词组短语
- feel an impulse 情不自禁想
- follow an impulse 憑一時沖動
- give an impulse 促進
- receive an impulse 受到刺激
- blind impulse 盲目的沖動
- fresh impulse 新的刺激
用作名詞 (n.)
動詞+～
形容詞+～
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.
劍橋英英字典
柯林斯英英字典
专业释义
- 沖量
- 脈沖
- 沖激
- 沖量
- 沖量
- 沖擊
- 脈沖
- 沖動
- 沖動
- 脈沖
- 沖動
- 沖動;搏動;脈沖
- 脈沖
- 沖量
- 沖量