基本结构
在英语中，表示“阻止某人做某事”时，标准结构是：
prevent + [someone] + from + [verb-ing]
✅ 正确：The rain prevented us from going out.
❌ 错误：The rain prevented us to go out.
关键要点
- “from”不能省略：这是固定搭配，必须包含介词 from。
- 动词必须用 -ing 形式：即动名词（gerund）。
- 主语可以是人、物、天气、规则等任何具有“阻止”作用的事物。
更多例句
- The law prevents companies from dumping waste into rivers.
- Her fear of heights prevented her from climbing the tower.
- Nothing could prevent him from pursuing his dream.
- The security system prevents intruders from entering the building.
常见错误
许多学习者会受其他动词（如 “want”, “ask”）影响，错误地使用不定式（to do）：
🚫 They prevented me to leave. （错误）
✅ They prevented me from leaving. （正确）
记住：只有 from + -ing 才是正确的！
同义表达
除了 prevent...from...，还可以使用以下结构表达类似含义：
stop someone from doing somethingkeep someone from doing somethingdiscourage someone from doing something（语气较弱）
注意：stop 和 keep 也必须接 from + -ing。