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TOEFL IELTS BNC: 1952 COCA: 2604

switch

Word family 
switch1 /swɪtʃ/ ●●● S2 W3 verb  
1  [intransitiveI, transitiveT]CHANGE FROM ONE THING TO ANOTHER to change from doing or using one thing to doing or using another 转换，转变，改变
switch to
 She worked as a librarian before switching to journalism.
她在转行从事新闻工作前是图书馆管理员。
switch from something to something
 Duval could switch easily from French to English.
杜瓦尔可以在法语和英语之间自如切换。
switch between something and something
 He switches between TV and theatre work.
他的工作在电视业和戏剧界之间不断变换。
 The terrorists will switch tactics.
恐怖分子会改变战术。
switch sides/allegiance (=start supporting a different person, party etc) 转换立场/改变拥戴对象
 He switched sides just days before the election.
就在竞选的前几天他改变了立场。
switch attention/focus/emphasis
 We want to switch focus away from criticism.
我们想把重点从批评上转移开。
2  [transitiveT]REPLACE to replace one thing with another, or exchange things 交换；调换；转换 SYN change
switch something for something
 Tim may switch his BMW for something else.
蒂姆可能会把他的宝马车换成别的什么车。
switch something from something to something
 We’ve switched the meeting from Tuesday to Thursday.
我们把会议从周二改到了周四。
switch something around
 It’s not easy to switch clerical workers around.
想调换办公室工作人员并不容易。
3  [intransitiveI, transitiveT] American EnglishAmE if you switch with someone who does the same job as you, you exchange your working times with theirs for a short time 〔与同事〕调换上班时间，调（班） SYN swap
switch with
 Tom said he’d switch with me on Saturday.
汤姆说他周六会和我调班。
 He asked if we could switch shifts.
他问我们是否可以调班。
4  [transitiveT always + adverbadv/prepositionprep] to change the way a machine operates, using a switch 〔用开关〕改变〔机器的运转〕，转换
switch something to something
 Switch the freezer to ‘defrost’.
把冷冻柜调到“除霜”模式。
5 switch off phrasal verbphr v 
a) SWITCH ON OR OFFto turn off a machine, light, radio etc using a switch 〔用开关〕关掉，关上
switch something ↔ off
 The burglar alarm was switched off.
防盗警报器被关上了。
 Don’t forget to switch off before you go.
离开之前别忘记关掉开关。
b) informalATTENTION# to stop listening to someone 不再听；不加理睬[注意]
 He just switches off and ignores me.
他就是不听，不理我。
c) to relax for a short time 〔短暂地〕放松
 Switch off by listening to music.
听听音乐放松一下。
Examples from the Corpus
switch off• In the end I got sick of the conversation and switched off.• It's OK - I switched the TV off before I went out.• It's difficult for teachers to switch off when they go home at night.• Always switch off your computer when you've finished.
6 switch on phrasal verbphr v SWITCH ON OR OFFto turn on a machine, light, radio etc using a switch 〔用开关〕开，打开
Examples from the Corpus
switch on• Do you mind if I switch the light on?• Exhaust fumes come into the car when I switch on the air conditioner.• I switched on the radio to listen to the news.• Will you switch on the television?
7 switch over phrasal verbphr v 
Examples from the Corpus
switch to• To see what you've taken, switch over to play and browse through your images.
switch to• To see what you've taken, switch over to play and browse through your images.
n COLLOCATIONS
nouns
switch sides (=start supporting someone or something else)
Three senators switched sides and voted for the ban.
switch (your) allegiance (=start supporting someone else)
Most of his supporters had switched their allegiance to his rival.
switch channels (=start watching a different TV channel)
Rod switched channels with the remote control.
switch tactics
Sensing that his victim was going to escape him, he switched tactics.
switch your attention/focus to something
Laura wasn't interested so he switched his attention to Tessa.
switch brands
46% of consumers surveyed were likely to switch brands to support companies they saw as socially responsible,
the emphasis switches/is switched to something
The emphasis has switched to defence.
Examples from the Corpus
switch• Solbourne's product allows developers to create graphical user interfaces that dynamically switch between Motif and Open Look.• He switched easily and fluently from speaking English to French to German.• Then he switched his own torch off.• He went inside to her living room, switched off the lights on the bushes, and locked the front door.• We switched seats halfway through the show.• He parked close to where the land sloped downwards to a narrow pebble beach, and switched the engine off.• He was accused of switching the price labels on goods.• It was still switched through to the secretary's office, and it took an infuriatingly long time to get a line.• Would Parcells select either one, make Willie McGinest a defensive end and switch to a 4-3 defense?• She switched to forward when she joined the Tiburon Tornadoes at 14.• As a result, most of these countries have switched to orthodox fiscal and monetary policies to curb inflation.• It took a long time for Americans to switch to smaller cars.• I used to play golf but I switched to tennis to get more exercise.• Professor Rigby's talk may be switched to the main hall.• We must have switched umbrellas by mistake.
switch attention/focus/emphasis• I will switch emphasis from attending Branch meetings to meeting on a one to one basis with these people in each branch.
switch something from something to something• He switched over from manual to remote operation, putting Betty now under control of Hal.
switch something to something• Switch the oven to "broil."
Related topics: Daily life
switch2 ●●● S3 noun [countableC]  
1  on/off 开/关SWITCH ON OR OFF a piece of equipment that starts or stops the flow of electricity to a machine, light etc when you push it 〔机器、电灯等的〕开关；电闸
2  change 改变CHANGE FROM ONE THING TO ANOTHER [usually singular] a complete change from one thing to another 〔彻底的〕改变，转变
3. railway 铁路 American EnglishAmE a piece of railway track that can be moved to allow a train to cross over from one track to another 〔铁路的〕转辙器，道岔
4. stick 枝条D old-fashioned a thin stick that bends easily 细软的枝条
n COLLOCATIONS
verbs
press a switch
He pressed a switch on the wall and the door opened.
flick/flip a switch (=move it so something starts or stops)
You start the fan by just flipping this switch.
throw a switch (=move it so something starts or stops, especially something big)
Could a nuclear war really be started by someone just throwing a switch?
ADJECTIVES/NOUN + switch
a light switch
He reached for the light switch.
a dimmer switch (=a switch that can change the brightness of a light)
an on-off switch
I couldn’t find the on-off switch.
the power switch
They have reverted to placing the mains power switch at the back of the unit.
the mains switch (=one that controls the supply of electricity to a house)
The mains switch is located inside a cupboard near the front door.
phrases
at the flick/touch of a switch (=very quickly and easily, with a switch)
The advantages of having electricity available at the flick of a switch are obvious.
Examples from the Corpus
switch• For example, if the price of metal rises too high there may be a switch to plastic.• Then, he flicked a switch and stood well back.• There is a board in the reception office, cashier's office and housekeeper's office with a switch in every bedroom.• A switch to complete different new foods may cause stomach upsets.• Jim walked over to the overhead, placed a transparency on it, and flicked on the lamp switch.• a light switch• Additional features include an IrDA interface for wireless connection and a locking switch for printer transport.• Where's the power switch?• His sudden switches of mood are difficult to deal with.• In a surprise switch, he heads into soft-edged landscape in a fifth work.• All other flying leads for the switches and indicators are at low voltage and these can be soldered directly to the p.c.b.• The switch from political activity to family life was hard to handle.• The switch to a free market economy will not be easy.
at the flick of a switch• These days about 15 percent of our energy is obtained at the flick of a switch.
making the switch• Even previously committed invertebrate labs like Alkon's Hermissenda group were making the switch.
Switchn trademark  
n1.in the past, a type of system used for paying for goods and services in the UK, by which customers used a type of plastic card called a debit card, and money was immediately taken out of their bank account. Since 2002, Switch has been replaced by Maestro, the Mastercard brand of debit card.
Origin switch2
(1500-1600) Perhaps from Middle Dutch swijch “small thin stick”
switch1 verb →n COLLOCATIONS1switch2 noun →n COLLOCATIONS1Switchn
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