什么时候“动词要降级”？这是有信号的
🧠 一、宾语从句为什么会出现虚拟语气？
先看两句话对比：
- He said that she was late.（陈述事实）
- He suggested that she arrive early.（不是事实，而是建议）
📌 核心区别：
👉 当宾语从句表达的不是“事实”，而是
建议 / 要求 / 命令 / 期望 时，
就要用 虚拟语气。
🚦 二、最重要的触发信号：动词类型
只要主句中出现以下一类动词，就要高度警惕：
🔹 建议类
suggest / advise / recommend
🔹 要求或命令类
request / demand / require / insist
📘 示例：
- The teacher suggested that we review the material.
- They demanded that the rule be changed.
📌 注意：
👉 不是过去式，不是第三人称单数
👉 而是：动词原形
🧩 三、宾语从句虚拟语气的固定结构
✅ 标准结构
主句（建议/要求） + that + 主语 + 动词原形
📗 示例：
- She insisted that he apologize immediately.
- The doctor advised that he rest for a few days.
✅ 英式写作中的常见变体（了解即可）
that + 主语 + should + 动词原形
📘 示例：
- He suggested that she should take a break.
📌 考试与写作中，两种都算正确。
⚠️ 四、最常见的 3 个错误（重点避坑）
❌ He suggested that she goes home early.
✔️ He suggested that she go home early.
❌ The manager demanded that the report was finished.
✔️ The manager demanded that the report be finished.
❌ She advised me that I should studying harder.
✔️ She advised that I study harder.
👉 错误根源：
把虚拟当成了正常时态。
✍️ 五、写作实用句型（可直接套用）
- It is suggested that students keep a regular schedule.
- The rule requires that all members follow the guidelines.
- Experts recommend that people limit screen time.
📌 写作提示：
这些结构在说明文、议论文中非常加分。
📝 六、练习任务（判断 + 填空）
请用正确形式填空：
- The teacher suggested that we ___ (finish) the task early.
- They requested that the meeting ___ (be) postponed.
- He insisted that she ___ (not tell) anyone.
👉 参考答案：
- finish
- be
- not tell
🚀 七、虚拟语气并不虚
宾语从句中的虚拟语气，并不是“假设”，而是一种态度表达工具。
在 李校来了英语 的句型与语法训练中，你会通过大量高频动词场景，反复强化“看到这个动词，就自动切换结构”的能力，让虚拟语气从难点变成条件反射。
