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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；(电)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。
n COLLOCATIONS – Meaning 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
impulse• The first diary entries were no doubt recorded on an impulse, in odd hours in his room in the shophouse.• My first impulse was to go straight to Henry and tell him my news, but on reflection I thought better of it.• But it was a vague idea, little more, Neville remembers, than an inchoate impulse.• In Middle-earth, then, both good and evil function as external powers and as inner impulses from the psyche.• It was an outfit that I had bought on impulse, and never worn.• On impulse, he reached out and passed his hand through the vapour.• The same ultimate specific impulse therefore applies to all three types of system.• But the crucial challenge is to translate that spontaneous impulse of generosity into a long-term political commitment to prevent more global warming.• Once the impulse is transmitted, the nerve segment recovers to its original state, ready for a new impulse.• The impulse of government all over the world is to control information.• He has to learn to control his violent impulses.• It takes a lot of wrong-way impulses to start a seizure in normal cortex.
impulse to do something• Robbie had to fight down an impulse to reach out and run her fingers over the dark mat.• Suddenly I had an impulse to write.• This recognition of mortality and the requirement to transcend it is the first great impulse to mythology.• I had an almost irresistible impulse to giggle.• They were businessmen and found it difficult to restrain their natural impulse to boosterism.• Sensory receptors inside the nose send impulses to the brain, triggering the sneeze reflex.• In love perhaps was another way to describe being lost, without the impulse to remember where you came from.• Their impulse to rule is neither analysed nor questioned.
Origin impulse
(1600-1700) Latin impulsus, from the past participle of impellere; → IMPEL
im·pulse noun →n COLLOCATIONS1
LDOCE Online
Chinese
Syllable
Corpus
TOEFL IELTS BNC: 5362 COCA: 4695
impulse

noun¹

 1sudden strong wish突然產生的強烈願望ADJECTIVE | VERB + IMPULSE | IMPULSE + NOUN | PREPOSITION ADJECTIVE➤strong強烈的衝動➤irresistible無法抵抗的衝動➤first, initial, original第一個念頭；最初的衝動◇My first impulse was to run away.我的第一個念頭就是逃跑。➤sudden突然的衝動➤human人類的基本衝動➤basic基本衝動➤instinctual, natural本能的／自然的衝動➤repressed被壓抑的衝動➤conflicting, contradictory, contrary矛盾的衝動；相反的衝動➤aggressive, murderous, violent挑釁的／殺人的／暴力衝動➤suicidal自殺衝動➤destructive破壞衝動➤creative創作衝動➤sexual性衝動VERB + IMPULSE➤feel, have感到衝動；有衝動◇She felt a sudden impulse to look to her left.她突然有種想往左看的衝動。➤be subject to易於衝動◇We are all subject to aggressive impulses.我們都有攻擊他人的衝動。➤be driven by受衝動驅使➤check, control, deny, fight, resist, restrain, stifle, suppress克制衝動；控制衝動；抑制衝動◇He fought down an impulse to scream.他壓制住想要尖叫的衝動。➤give in to, obey, yield to屈從於衝動◇She gave in to an impulse and took the money.她忍不住拿了那筆錢。➤act on, follow衝動行事◇Acting on impulse, he picked up the keys and slipped them into his pocket.他一時衝動，撿起鑰匙偷偷塞進了自己的口袋。IMPULSE + NOUN➤buy, purchase一時衝動購買的物品◇The little black designer dress had been an impulse buy.這條名牌黑色小裙子是一時心血來潮買的。➤item (especially NAmE) 供顧客臨時起意購買的商品◇Supermarkets sell candy as impulse items at the checkout counter.超市在收款櫃枱擺放糖果，供顧客臨時起意購買。➤buying衝動性購物➤buyer衝動型購物者➤control衝動控制PREPOSITION➤on (an) impulse因為衝動◇Some people will buy a pet on impulse without any idea of what is involved.有些人會因一時衝動買只寵物，而根本不去想這意味着什麼。◇On an impulse, I went in and bought a box of chocolates.我一時衝動，走進去買了一盒巧克力。➤impulse towards/toward對⋯的衝動◇basic impulses towards / toward things such as food and drink對食品、飲料等東西的基本衝動
impulse

noun²

 2movement of energy衝力ADJECTIVE | VERB + IMPULSE ADJECTIVE➤electrical, nerve, neural電脈衝；神經衝動VERB + IMPULSE➤generate產生脈衝◇A neuron generates an electrical impulse.神經元產生電脈衝。➤send, transmit發送／傳送脈衝◇Nerve impulses are transmitted to the brain.神經脈衝被傳送至大腦。➤convert sth into, transform sth into把⋯轉換成脈衝◇Radio waves are converted into electrical impulses.無線電波被轉換成電脈衝。
impulse

noun³

 3sth that causes sb/sth to do sth推動力ADJECTIVE | IMPULSE + VERB | PREPOSITION ADJECTIVE➤democratic, political, religious民主／政治／宗教推動力IMPULSE + VERB➤lead (sb/sth) to sth, prompt sb/sth (to do sth)動力促使⋯（做某事）；動力促成（⋯）◇the impulse that prompted economic change促使經濟變革的推動力PREPOSITION➤impulse behind⋯背後的推動力◇the impulse behind a concept概念背後的推動力➤impulse for對⋯的推動力◇the impulse for social reform社會改革的推動力➤impulse towards/toward朝向⋯的推動力◇the political impulses towards / toward joining a trade union促使加入工會的政治動力
TOEFL IELTS BNC: 5362 COCA: 4695
impulse noun
⇨ desire
TOEFL IELTS BNC: 5362 COCA: 4695

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