定义 / 说明
在 C2，体（aspect）选择不仅是语法选择，也是修辞选择。说话者/作者会在 simple、continuous、perfect 之间切换，以塑造语气、强调、距离与态度。simple 可显得直接确定；continuous 可显得暂时、渐进或带情绪；perfect 可把过去与现在连接，形成更柔和或反思式语气。在高级英语中，多种形式可能都“语法正确”，但效果并不相同。真正能力是感知每种形式会让听者如何理解你的立场。
关键规则
- simple forms：用于直接事实、强判断、完整视角、强强调：I mean it.
- continuous forms：用于发展中过程、暂时性、带态度的重复、背景过程：You are always interrupting me.
- perfect forms：用于连接过去与现在，或柔化意图/未完成计划：I have been meaning to call you.
- 不只问 Is it correct?，还要问 What effect does it create?
- 在本级别，体的选择常改变的是 tone，不只是 time reference。
例句
- I mean it. - 我是认真的。
- I have been meaning to call you. - 我一直想给你打电话。
- She is always complaining about the weather. - 她老是在抱怨天气。
- We have lived here for years. - 我们在这儿住很多年了。
- The team is improving slowly. - 这个团队正在慢慢进步。
常见错误
- ❌ I am meaning it. -> ✅ I mean it.
- ❌ I meant to call you for weeks. -> ✅ I have been meaning to call you for weeks.
- ❌ She complains always about it when you want an annoyed tone. -> ✅ She is always complaining about it.
提示
- 当两种形式看似都可用时，先问：我要听起来更直接、暂时、反思，还是不耐烦？