prevent
UK/pri'vent/US
NGSL 2kTOEFL中考高考四级六级考研A2
释义
v.
To stop something from happening
预防,防止(某事发生)
v.
To stop someone from doing something
阻止(某人做某事)
词根拆分
词根派生pre-(在前)+ vent(来)= "来在……之前"。想象抢先到达门口、堵住它:你来在了正要发生的事之前,挡住了它的路。较早的中性义(「先到」)消退了,只留下今天用的「阻挡」义。
词根 ven 还连着 84 个词使用指南
注意 prevent somebody from doing 的句法:现代英语里 from 不可省(prevent him from leaving,不能说 prevent him to leave)。也可直接 prevent 某物(prevent disease),此时无 from。另外 prevent 语气较强,含「成功阻止」之意,而非仅仅尝试。
例句
- 1.
Washing your hands helps prevent the spread of germs.
勤洗手有助于防止细菌传播。
- 2.
The heavy rain prevented us from finishing the game.
大雨使我们没能打完这场比赛。
- 3.
Nothing could prevent the old bridge from collapsing.
没有什么能阻止那座旧桥倒塌。