A2 noun Neutro #3,000 mais comum 1 min de leitura

开关

kāiguān /kʰaɪ kwan/

The switch is the fundamental bridge between power and function in any electrical device.

Palavra em 30 segundos

  • A device to control electrical circuits.
  • Used to turn appliances on or off.
  • Can also refer to a metaphorical start or end.

Overview

  1. 1概述:开关(kāiguān)是一个非常基础且高频的词汇。从字面意思看,“开”代表开启,“关”代表关闭。它不仅指代墙上的电灯开关,还可以引申为控制某种状态开启或停止的机制。2) 用法:作为名词时,它常与动词“开”、“关”、“按”、“拨”搭配。例如,“打开开关”或“关掉开关”。在口语中,人们也常说“把灯关了”,这里的“开关”有时被省略,但在指代具体的控制装置时,必须使用“开关”。3) 常见语境:最常见的场景是家居环境,如“进门先开灯,出门记得关开关”。此外,它也广泛应用于工业设备、电子产品(如电脑电源开关)以及比喻意义的表达(如“开启人生新篇章”)。4) 词汇辨析:与“按钮”相比,“开关”强调的是功能(通断),而“按钮”强调的是形状(按压式部件)。与“闸门”相比,“开关”更侧重于小型电气设备,而“闸门”多用于大型水利或电力系统。

Exemplos

1

请帮我打开灯的开关。

everyday

Please help me turn on the light switch.

2

该设备配有紧急停止开关。

formal

The device is equipped with an emergency stop switch.

3

把那个开关拨上去就行了。

informal

Just flip that switch up.

4

这项技术为人工智能的发展打开了开关。

academic

This technology acted as a catalyst for AI development.

Colocações comuns

打开开关 Turn on the switch
关闭开关 Turn off the switch
电源开关 Power switch

Frases Comuns

开关机

Power on/off (a device)

总开关

Main switch

随手关灯

Turn off the lights when leaving

Frequentemente confundido com

开关 vs 按钮

A button refers to the physical object you push, while a switch refers to the function of controlling power.

开关 vs 阀门

A valve is used for controlling the flow of liquids or gases, not electrical circuits.

Padrões gramaticais

打开[某物]的开关 把[某物]的开关关掉 位于[某处]的开关

How to Use It

Notas de uso

The word is neutral and fits any register. It is primarily used for electrical devices. In metaphorical contexts, it implies the initiation of a process.


Erros comuns

Beginners often confuse '开关' with '插座' (socket). Remember that '开关' is for control, while '插座' is for plugging in power cables.

Tips

💡

Use with specific verbs

Always pair '开关' with '打开' (turn on) or '关掉' (turn off) for clarity. This makes your instructions sound natural.

⚠️

Don't confuse with 'key'

While 'key' is '钥匙', '开关' is strictly for electricity or states. Do not use them interchangeably.

🌍

Smart home influence

With the rise of smart homes, '智能开关' (smart switch) has become a very common term in modern Chinese households.

Origem da palavra

Derived from the characters '开' (open/start) and '关' (close/stop), representing the binary nature of an electrical circuit.

Contexto cultural

In modern China, the design of wall switches has evolved from simple mechanical toggles to touch-sensitive and smart home integrated panels.

Dica de memorização

Think of a door: '开' is open, '关' is close. A switch is just a door for electricity!

Perguntas frequentes

4 perguntas

通常使用“打开”或“按”来操作开关使设备运行,使用“关掉”或“关闭”来停止设备。例如:请帮我打开灯的开关。

可以,常用于比喻。例如“开启成功的大门”或“关闭沟通的渠道”。

开关是功能性术语,指控制通断;按钮是物理形态术语,指可以按下的零件。很多开关表现为按钮的形式。

在正式文件中,通常使用“电源控制装置”或“断路器”,但“开关”一词本身在大多数场合使用也是完全正确的。

Teste-se

fill blank

出门前,请记得把房间里的灯___关掉。

Correto! Quase. Resposta certa: 电源

虽然灯有开关,但通常说“关闭电源”或直接说“关灯”。

multiple choice

我找不到电灯的___。

Correto! Quase. Resposta certa: 开关

此处需要一个名词作宾语。

sentence building

开关/请/灯/的/打开

Correto! Quase. Resposta certa: 请打开灯的开关

标准的祈使句结构。

Pontuação: /3

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