“打开”是用open还是turn on?

open表示“打开”，是指把闭合或封起来的东西打开或揭开，强调从紧闭的状态向开放状态的移动。

open打开

open the door/window

打开门/窗

open your eyes/mouth

睁开眼睛/张开嘴巴

close关闭，合上

close the door/window

关上门/窗

close your eyes/mouth

闭上眼睛/合上嘴巴

如：open your heart

敞开心扉

open your mind

打开思路

turn on表示“打开”，一般用于打开电器类（电视、灯、收音机等）或者带按钮、阀门的物体。turn有“转动、旋转”之意，on强调有接触，所以turn on可以理解为“拧开”。

turn on打开

turn on the TV/light

打开电视/灯

turn on the computer

打开电脑

turn on the shower/tap

打开淋浴/水龙头

turn on the gas

打开天然气

turn off关掉

turn off the TV/light

关掉电视/灯

turn off the computer

关掉电脑

turn off the shower/tap

关掉淋浴/水龙头

turn off the gas

关闭天然气

open the fridge打开冰箱门

turn on the fridge接通冰箱电源

1. Please ——the radio. I want to listen to the news.

A. open B. close C. turn on D. turn off

2. Don’t forget to—— the lights when you leave home.

A. turn over B. turn off C. turn up D. turn on

3. ——the door， please. It’s very cold outside.

A. Close B. Open C. Turn off D. Turn on

4. He feels very hot now. He wants to——the air conditioner.

A. turn off B. turn on C. open D. close

5. Be sure to—— the gas when you leave the kitchen.

A. turn off B. turn on C. open D. close