定义 / 说明
在高级书面英语中，which 不仅可指代名词，也可指代前面的整个分句或事件。此时 which 从句用于补充评价或结果，如 They changed the plan, which was unexpected。这个关系从句不是“界定对象”，而是“评论前述整体事件”，因此逗号很关键。该结构常见于分析和叙事写作，能在不新起句的情况下顺畅加评述。
关键规则
- 用“逗号 + which”回指前面整个分句。
- which-clause 常表达反应、结果或评价：which was surprising, which annoyed everyone。
- 这种“整句指代”不用 that。
- 语义通常回指整个事件，不仅最近名词。
- 确保指代逻辑清晰，避免歧义。
例句
- He lost the key, which annoyed him. - 他把钥匙弄丢了，这让他很烦。
- They changed the plan, which was unexpected. - 他们改了计划，这出乎意料。
- She missed the deadline, which caused problems. - 她错过截止时间，这导致了问题。
- We moved the meeting online, which made things easier. - 我们把会议转到线上，这让事情更容易。
- The team won again, which surprised nobody. - 这支队伍又赢了，这并不让人意外。
常见错误
- ❌ He lost the key, that annoyed him. -> ✅ He lost the key, which annoyed him.
- ❌ They changed the plan which was unexpected. -> ✅ They changed the plan, which was unexpected.
- ❌ She resigned, which Anna found her shocking. -> ✅ She resigned, which Anna found shocking.