switch的過去式和用法例句
switch做動詞有改變;交換;轉換;鞭打等意思，那麼你知道switch的過去式是什麼嗎?下面是本站小編爲大家整理的switch的過去式和用法例句，歡迎大家學習!
switch的過去式和其他時態：
過去式: switched
過去分詞: switched
現在分詞: switching
switch的用法：
switch的用法1：switch用作名詞時意思是“開關”“轉換”,用作動詞時意思是“擰開關”“轉變”“轉換”,指通過某種措施或辦法使某事物改變或改換其原有的位置、名稱或運行方式等,引申可表示“揮動某物打某人”“打開”。
switch的用法2：switch可用作及物動詞,也可用作不及物動詞。用作及物動詞時,接名詞或代詞作賓語,也可接以動詞不定式充當補足語的複合賓語。
switch的用法3：switch也可用作名詞,意思是“開關”“改變,轉變”。
switch的過去式例句：
1. He took his flashlight from his jacket pocket and switched it on.
他從夾克口袋裏拿出手電筒，打開開關。
2. As the era wore on, she switched her attention to films.
隨着這個時代慢慢過去，她把目光投向了電影業。
3. He switched off the transformer and the buzzing stopped.
他關掉變壓器，嗡嗡聲就消失了。
4. In half an hour, they'd switched the tags on every cable.
半個小時內，他們就給每根電纜都換了標籤。
5. She emptied both their mugs and switched on the electric kettle.
她把他們倆的杯子倒空，燒上了電水壺。
6. There was a little portable television switched on behind the bar.
櫃檯後面有一臺開着的便攜式小型電視機。
7. He trotted to the truck and switched on the ignition. Nothing happened.
他匆匆走向卡車並轉動點火開關，結果沒有任何反應。
8. I switched off the engine and coasted round the corner.
我熄掉引擎，靠慣性轉過彎去。
9. Glass parked the car and switched the engine off.
格拉斯停好車，熄了火。
10. The device automatically disconnects the ignition when the engine isswitched off.
當引擎關掉時，這個裝置會自動切斷點火開關。
11. She switched on one bar of the electric fire.
她打開了一片電暖器。
12. The ballot boxes have been switched.
投票箱被人調換了。
13. His focus switched to the little white ball.
他把關注點轉移到那個小白球上。
14. She braked to a halt and switched off.
她剎車停下，然後將車熄火。
15. She switched off the coffee-machine.
她關掉了咖啡機。
