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IELTS BNC: 1245 COCA: 1390

speed

Word family 
Related topics: Photography, Drug culture
speed1 /spiːd/ ●●● S2 W1 noun  
1  of movement 运动的 [countableC, uncountableU]SPEEDFAST/QUICK the rate at which something moves or travels 速度，速率
 The truck was travelling at a speed of 50 mph.
卡车正以 50 英里的时速在行驶。
 particles that travel at the speed of light.
以光速运动的粒子
 Register
In everyday English, people usually talk about how fast something or someone is rather than using the noun speed: 在日常英语中表示多快, 人们一般说 fast, 而不用名词 speed
What speed was he going? → How fast was he going? 他当时有多快？
2  of action 行动的 [countableC, uncountableU]SPEED the rate at which something happens or is done 〔事件发生或进行的〕速度
speed of
 the speed of change within the industry
该行业内部的变革速度
 a high-speed computer
一台高速电脑
 The population was growing at great speed.
人口在快速增长。
3  fast 快速的 [uncountableU] the quality of being fast 快，快速
 The women’s basketball team has talent, speed, and power.
这支女子篮球队天赋、速度和力量兼备。
with speed
 She acted with speed and efficiency.
她的行动快速有效。
at speed British EnglishBrE
 a van travelling at speed
快速行驶的小 货车
4  photography 摄影 [countableC]
a) TCPthe degree to which photographic film is sensitive to light 感光速度
b) TCPthe time it takes for a camera shutter to open and close 快门速度
 a shutter speed of 1/250 second
1/250 秒的快门速度
5. drug 毒品 [uncountableU] informalMDD an illegal drug that makes you very active 苯丙胺，脱氧麻黄碱，快速丸〔一种兴奋剂〕 SYN amphetamine
6  five-speed/ten-speed etc TTBhaving five, ten etc gears 五速的/十速的等
 a ten-speed bike
十速自行车
Examples from the Corpus
five-speed/ten-speed etc• It retains a five-speed gearbox: the 959 had six speeds.• The performance through the five-speed manual gearbox is impressive, and higher speed cruising is effortless and remarkably quiet.
7  up to speed having the latest information or knowledge about something 跟上形势，了解最新情况
 Some school officials are only now getting up to speed regarding computers.
有些学校官员在计算机方面现在才刚刚跟上形势。
 John will bring you up to speed (=tell you the latest information).
约翰将会为你介绍最新情况。
Examples from the Corpus
bring ... up to speed• It took the company a year to bring them up to speed.• To bring consumers up to speed, telephone companies are revving up education campaigns.
→ full speed/steam ahead at full1(18)
 COLLOCATIONS – Meanings 1 & 2
verbs
increase your speed 增加速度
He increased his speed until he was running flat out.
他不停加速,直到全速奔跑。
gain/gather/pick up speed (=go faster) 加速
The Mercedes was gradually picking up speed.
那辆梅赛德斯逐渐加速。
reach a speed 达到某速度
The trains will reach speeds of 140 mph.
火车时速将可以达到每小时140英里。
maintain a speed (=keep the same speed) 保持速度
The aircraft is designed to maintain a steady speed.
飞机被设计得可以定速飞行。
reduce speed (=slow down deliberately) 〔有意地〕减速
She reduced speed as she approached the village.
她快到村子的时候放慢了速度。
lose speed (=slow down without wanting to) 〔无意地〕减速
nThe engine made a strange sound and we lost speed.
ADJECTIVES/NOUN + speed
an average speed 平均速度
Our average speed was 88 mph.
我们的平均速度是每小时88英里。
a constant/steady speed 恒定/稳定的速度
The disc revolves at a constant speed.
光碟以恒定速度旋转。
a top/maximum speed (=the highest possible) 最高速度
The car has a top speed of 132 mph.
这车最高时速是132英里。
wind speed (=the speed of the wind) 风速
nThe average wind speed will be about 14 knots.
air speed (=the speed of a plane in relation to the air around it) 空速
phrases
at high/great speed 以高速
The train was travelling at high speed.
列车正在高速行驶。
at low/slow speed 以低速
Even at low speed, an accident could mean serious injury for a child.
即使是低速行驶,交通事故也可能会使孩子受重伤。
at full speed (=running, driving etc as fast as possible) 以全速
He ran past us at full speed.
他全速从我们身边跑过。
at/with lightning speed (=very quickly) 以闪电般的速度
nHe moved with his usual lightning speed.
at breakneck speed (=very quickly) 以不要命的速度
nHe drove away at breakneck speed.
speed + NOUN
a speed limit 速度限制
The speed limit is 40 mph here.
这里限速每小时40英里。
a speed restriction 速度限制
New speed restrictions have been introduced.
新的速度限制已经推行。
a speed camera (=designed to photograph vehicles going too fast) 测速照相机
nMost GPS systems will warn you when there are speed cameras.
Examples from the Corpus
speed• The Earth moves round the Sun at a speed of 30 km per second.• The train's designers claim it is capable of attaining speeds in excess of 350 kph.• Keep driving at a constant speed until I tell you differently.• The Embraer 120 turboprop is equipped with twin propellers designed to spin at a constant speed.• Internet advertising, until recently flourishing, is hitting its first speed bump.• Not surprisingly, our overall supply posture as well as its speed of response improved markedly.• sensors which monitor speed and body movement• the internal processing speed of a computer• Puncturing the three blisters received while trying to impress fellow teacup riders with spin speed, get in line for Matterhorn.• Palace lacked the speed of thought, the wit and the crisp execution that their boss displayed in his post-match press conference.• What was the speed of the car at the time of the accident?• For barbell take a note of the light, the colour of the water, the speed of current and the temperature.• The speed at which everything then happened made it all seem rather unreal: I just couldn't get comfortable.• The speed of change in the region has stunned everyone.• The Ferrari Testarossa has a top speed of 188 mph.• Watch your speed when the roads are wet.
at a speed of• At room temperature, atoms normally fly around at speeds of hundreds or thousands of miles per hour.• Local-area networks transmitting data at speeds of between 10 megabits per second and 100 megabits per second also exist.• Birds of prey have been registered nose-diving at speeds of up to 1 l 0 miles an hour.• They drove several miles at speeds of up to a hundred and twenty miles an hour.• The force proceeded southeast at a speed of 18 knots, zigzagging at intervals of five to ten minutes. 2.• A pea-sized projectile is hurtled into a target at speeds of up to sixteen thousand miles an hour.• Objects from space hit the Earth all the time-at speeds of more than 10 miles a second.• Shaun Gooch had turned his car into Akers Way at speeds of around eighty miles an hour.
at speed• The train was already travelling at speed when she tried to open the carriage door.
speed2 ●○○ verb (past tensepst and past participlepp sped /sped/ or speeded)  
1  [intransitiveI always + adverbadv/prepositionprep]FAST/QUICK to go quickly 快行，疾走
 The car sped along the dusty highway.
汽车在尘土飞扬的公路上疾驰。
2  [transitiveT always + adverbadv/prepositionprep]FAST/QUICK to take someone or something somewhere very quickly 快速运送
 An ambulance sped her to the hospital.
一辆救护车把她快速送往医院。
3  be speeding SCCSPEEDto be driving faster than the legal limit 超速驾驶
 I got caught speeding on the A40 yesterday.
昨天我在 A40 号干线公路上超速行驶被逮到。
Examples from the Corpus
caught speeding• Those visitors paid $ 769,000 last year after they were caught speeding.• In the meantime, motorists caught speeding through the contraflow can expect to receive a court summons in the post.• If the Duke had been caught speeding today ... his fine would probably have been something like seven hundred pounds.
4  (also speed something ↔ up) [transitiveT] to make something happen faster 加快，促进 OPP slow down
 This news should speed his recovery.
这个消息应该会加快他的康复速度。
5 speed by phrasal verbphr v FAST/QUICKif time speeds by, it seems to pass very quickly 〔时间〕很快地过去，飞逝
6 speed up phrasal verbphr v FAST/QUICKto move or happen faster, or to make something move or happen faster （使）加快速度 OPP slow down
Examples from the Corpus
speed up• I'll phone the manager and get them to speed things up.• The company announced they're speeding up plans to expand the site.• Nancy, if you don't speed up we'll be here until midnight.
Examples from the Corpus
speed• She also wants the Legislature to increase penalties for drivers who speed in school zones.• This could speed the spread of labeling.• The changing nature of the corporation speeded this along.• To speed up publication the presentations have been used unaltered so the book lacks a coherent style or structure.• He says that the technique has meant they can speed up research time, helping to stay ahead of the field.• Now, inexplicably, just as he was about to reach his goal, things had suddenly speeded up.• With warming temperatures, the life cycle speeds up.• People visibly speeding will also get reported and residents will occasionally be joined by officers.
Origin speed1
Old English sped “success, quickness”
speed1 noun →REGISTER1 →COLLOCATIONS1speed2 verb
LDOCE Online
Chinese
Corpus
IELTS BNC: 1245 COCA: 1390
speed

noun

ADJECTIVE | ... OF SPEED | VERB + SPEED | SPEED + VERB | SPEED + NOUN | PREPOSITION | PHRASES ADJECTIVE➤amazing, astonishing, breakneck, fast, good, great, high, incredible, lightning, phenomenal, remarkable, startling, surprising, terrific (especially BrE) 驚人的速度；非常危險的速度；快速；高速；令人難以置信的速度；閃電般的速度◇The new houses have been built with astonishing speed.這些新房子修建的速度快得驚人。◇He drove us to the hospital at breakneck speed.他以驚險的速度開車送我們去醫院。➤low, slow低速；慢速▸➤full, maximum, top, warp (informal, humorous, especially NAmE) 全速；最高速度；極速；超乎尋常的速度◇Business is moving at warp speed.貿易正以超乎尋常的速度推進。➤excess超速◇90% of car accidents involve excess speed.90% 的車禍與超速駕駛有關。➤constant, steady恆定的／平穩的速度▸➤average, normal平均／正常速度➤increased加快的速度➤operating, processing, processor, running運轉／處理／處理器／運行速度◇the increase in processor speeds for home computers家用計算機處理器速度的提升◇The machinery is regulated to a safe running speed.這台機器調到了安全的運行速度。➤broadband, connection, download寬帶／鏈接／下載速度◇We offer subscribers a download speed of 8 MB.我們為用戶提供 8 兆字節的下載速度。➤cruising, flying巡航／飛行速度➤supersonic超音速◇jets flying at supersonic speed超音速噴氣式飛機➤traffic (especially BrE) , etc.車流等速度▸➤air, wind風速➤engine發動機轉速➤shutter快門速度◇The camera will choose a fast shutter speed.照相機將選擇較快的快門速度。... OF SPEED➤burst一陣速度的爆發◇The Kenyan runner put on a sudden burst of speed over the last 50 yards.肯尼亞運動員在最後 50 碼突然加速。➤rate (NAmE) 速率◇He was traveling at a high rate of speed.他正以高速行駛。VERB + SPEED➤attain, reach到達⋯的速度◇The car reaches a speed of 60 miles per hour within five seconds.這款車能在 5 秒鐘之內提速到每小時 60 英里。➤build up, gain, gather, increase, pick up加速；提速◇The train pulled out of the station, slowly gathering speed.火車駛出車站，慢慢開始加速。➤lose失速▸➤kill, reduce減速；降速◇Motorists are asked to reduce their speed in wet conditions.要求駕駛員雨天行車要減慢速度。➤maintain保持速度◇The boat maintained a steady speed while the sea was calm.大海風平浪靜的時候，船保持平穩的速度。➤move at, run at, travel at以⋯速度移動／行駛／行進◇The glacier moves at an average speed of about six feet per day.冰川以平均每天 6 英尺的速度移動。◇Radio waves travel at the speed of light.無線電波以光速傳播。➤measure測量速度SPEED + VERB➤increase加速▸➤decrease減速SPEED + NOUN➤control, reduction, restriction (especially BrE) 速度控制；減速；限速▸➤record速度紀錄◇He set a new land speed record in this car.他開這輛車創了陸地行駛速度的新紀錄。➤bump, hump (BrE) 減速帶▸➤camera, trap超速行車監視攝像機；汽車超速監視區PREPOSITION➤at speed (= fast) 高速地◇The car was moving at speed when the accident happened.事故發生時，這輛車正高速行駛。◇at lightning speed以閃電般的速度➤in speed在速度上◇a significant increase in speed速度的顯著提高➤with speed以⋯速度◇Hedgehogs, though small, can move with surprising speed.刺猬儘管很小，但動起來速度驚人。➤speed of⋯速度◇The ships have a maximum speed of 18 knots.這些船的最快速度是 18 節。PHRASES➤at full speed, full speed以最快速度；全速◇He was running at full speed when a tendon snapped in his leg.他正全速奔跑時，腿部的一條肌腱斷裂了。➤full speed ahead全速前行◇The boat can be brought to a stop from full speed ahead within her own length.這艘船可以在一個船身的距離內從全速航行中停下來。➤the speed of light, the speed of sound光速；聲速◇Concorde crossed the Atlantic at twice the speed of sound.協和飛機以兩倍聲速飛越大西洋。➤a turn of speed (BrE) 緊急加速（性能）◇For a small car it has a good turn of speed.對小型轎車來說，這輛車的緊急加速性能挺不錯。
IELTS BNC: 1245 COCA: 1390
speed noun
⇨ speed (excessive speed) ⇨ rate 1 (at top speed)speed verb
⇨ accelerate (speed the development of sth) ⇨ fly 2 (He sped away on his bike.) speed

noun

speed ♦︎ velocity ♦︎ haste ♦︎ rapidityThese are all words that can be used when sth happens, travels or is done very quickly. 这些词均表示快速、迅速。PATTERNS AND COLLOCATIONS 句型和搭配◆increasing speed / velocity / rapidity◆great speed / haste / rapidity◆maximum / constant speed / velocity◆reckless speed / haste◆alarming / amazing / bewildering / remarkable speed / rapidity◆to measure speed / velocity■ speed [uncountable] the quality of being quick or happening quickly 快；迅速◆The accident was due to excessive speed.那次事故的原因是速度过快。◆She was overtaken by the speed of events (= things happened more quickly than she expected).事态发展之快是她始料不及的。◆ (formal) The car flashed past them at speed.那汽车从他们身边疾驰而过。  see also speed ⇨ rate 1 , speedy ⇨ quick ■ velocity vəˈlɒsəti; NAmE vəˈlɑːsəti [uncountable, countable] (technical 术语 or formal) the speed of sth in a particular direction; high speed （沿某一方向的）速度；高速；快速◆to gain / lose velocity加速；减速◆Light travels at a constant velocity.光以恒定速度传播。◆Jaguars can move with an astonishing velocity.美洲豹跑起来速度惊人。■ haste [uncountable] (formal) speed in doing sth, especially because you do not have enough time 急速；匆忙；仓促◆In her haste to finish on time she made a number of mistakes.她急急忙忙想按时完工，结果出了一些错误。◆The letter had clearly been written in haste.这封信显然是仓促写就的。  see also hasten ⇨ hurry , hasty ⇨ quick ■ rapidity rəˈpɪdəti [uncountable] the fact of happening or changing very quickly or in a short period of time 快速；高速◆These changes happen with extreme rapidity.这些变化是以极快的速度发生的。  see also rapid ⇨ quick
IELTS BNC: 1245 COCA: 1390

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