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TOEFL IELTS BNC: 5362 COCA: 4695

impulse

Word family
Related topics: Electricity, Biology, Electricity
im·pulse /ˈɪmpʌls/ ●○○ noun  
1 [countableC, uncountableU]WANT a sudden strong desire to do something without thinking about whether it is a sensible thing to do 冲动;突然的欲望 SYN urge
impulse to do something
 a sudden impulse to laugh
突然想笑的冲动
 Marge’s first impulse was to run.
玛吉的第一个念头就是跑。
 Gerry couldn’t resist the impulse to kiss her.
格里抑制不住想亲吻她的冲动。
on impulse
 On impulse, I picked up the phone and rang her.
一时心血来潮,我拿起电话打给她。
 Most beginners buy plants on impulse and then hope for the best.
大多数新手都是一时兴起把植物买回来,然后就抱着最大的希望。
impulse buying/shopping (=when you buy things that you had not planned to buy) 冲动购物
2 [countableC] technicalHPE a short electrical signal that travels in one direction along a nerve or wire (神经)冲动;()脉冲
 The eye converts light signals to nerve impulses.
眼睛把光信号转变成神经冲动。
3 [countableC]REASON a reason or aim that causes a particular kind of activity or behaviour 推动力
 It is the passions which provide the main impulse of music.
激情是音乐创作的主要动力。
nCOLLOCATIONSMeaning 1 : a sudden strong desire to do something without thinking about whether it is a sensible thing to do
adjectives
strong
He had a strong impulse to punch Stan in the face.
irresistible (=very strong)
I felt an irresistible impulse to giggle.
a sudden impulse
She felt a sudden impulse to play some music.
somebody's first/initial impulse
Her first impulse was to turn and walk away.
a natural impulse
My natural impulse was to shout for help.
verbs
have/feel an impulse to
Rosa had an impulse to tell Henry the truth.
resist/control an impulse (=not do something, even though you have an impulse to do it)
Derek resisted the impulse to eat any more cake.
act on an impulse (=do something because you have a sudden desire to do it)
Acting on an impulse, he decided to visit his sister.
obey an impulse formal (also yield to an impulse literary) (=do something because you have a sudden very strong desire to do it)
Yielding to an impulse, she called him on her mobile phone.
impulse + NOUN
an impulse buy (=buying something without having planned it)
She admitted that the necklace had been an impulse buy.
phrases
do something on impulse (=do something without having planned it)
James bought her some flowers on impulse.
Examples from the Corpus
Origin impulse
(1600-1700) Latin impulsus, from the past participle of impellere; → IMPEL
im·pulse nounn COLLOCATIONS1
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