定义 / 说明
有些动词后既可接 -ing，也可接 to + infinitive，但意义会变化。典型如 stop, remember, try。结构变化虽小，语义差异却可能很大：一种可能表达记忆，另一种可能表达目的或义务。所以不仅要记形式，还要把每种形式和对应意义绑定。
关键规则
- stop doing = 停止某活动：He stopped smoking.
- stop to do = 停下当前动作去做另一件事：He stopped to smoke.
- remember doing = 记得“做过某事”。
- remember to do = 记得“去做某事（未来任务）”。
- try doing = 尝试某方法。
- try to do = 努力去做。
例句
- I stopped smoking two years ago. - 我两年前戒烟了。
- I stopped to buy some water. - 我停下来去买了点水。
- I remember meeting her before. - 我记得以前见过她。
- Please remember to lock the door. - 请记得锁门。
- If the printer is slow, try restarting it. - 如果打印机慢，试试重启它。
- He tried to open the window, but it was stuck. - 他努力想打开窗户，但窗户卡住了。
常见错误
- ❌ I remembered to meet her at the conference last year. -> ✅ I remember meeting her at the conference last year.
- ❌ Please remember locking the door tonight. -> ✅ Please remember to lock the door tonight.
- ❌ He stopped to smoke because it was bad for his health. -> ✅ He stopped smoking because it was bad for his health.
提示
- 先判断语义是“记忆”“目的”还是“努力”，通常就能选对结构。