定义 / 说明
间接疑问句把直接问句嵌入转述结构中。其语序改为陈述句语序，不再用直接疑问倒装。一般疑问句通常用 if/whether 引导；特殊疑问句保留原疑问词。ask 在此模式中最常见，wonder 也可用。核心难点是同时调整语序，以及在需要时进行时态后移。
关键规则
- 用 ask, wonder 等引入转述疑问。
- 一般疑问句用 if 或 whether。
- wh-疑问句保留 where/why/how 等疑问词。
- 用陈述句语序：He asked where I lived，不是 where did I live。
- 除非原义需要，否则不再用 do/does/did。
例句
- She asked if I was ready. - 她问我是否准备好了。
- He asked where I lived. - 他问我住哪儿。
- I wondered why they had left. - 我想知道他们为什么离开了。
- They asked whether we could help. - 他们问我们是否能帮忙。
- He asked what time the train arrived. - 他问火车几点到。
常见错误
- ❌ She asked if was I ready. -> ✅ She asked if I was ready.
- ❌ He asked where did I live. -> ✅ He asked where I lived.
- ❌ They asked that we could help. -> ✅ They asked whether we could help.