核心规则
并列句由两个或更多地位相等、各自具有完整主谓结构的分句组成。常用并列连词有 and、but、or、so、yet、for、nor，逻辑可表示递进、转折、选择或因果。
结构与例句
| 关系 | 连接方式 | 例句 |
|---|---|---|
| 递进 | and | The rain stopped, and the team continued. |
| 转折 | but/yet | The task was hard, but we finished it. |
| 选择 | or | Leave now, or you will miss the bus. |
| 结果 | so | The road was closed, so we took another route. |
使用场景
连接两个完整分句时，并列连词前通常用逗号。连接副词 however、therefore、moreover 不能单独用逗号粘连两个句子，需用分号或句号。
常见错误
错误： The plan is simple, however it is effective. → 正确： The plan is simple; however, it is effective。
错误： Because it rained, so we stayed inside. → 删除 because 或 so，避免中式双重连接。
易混知识点
并列句中的分句地位相等；复合句含主从关系。He stayed because it rained 中 because 从句依附于主句，不是并列句。
总结
确认两边是否都是完整分句，再选择能准确表达逻辑关系的连接词和标点。
高中 · 并列关系与标点
高中学习重点
并列连词不仅连接形式，还规定逻辑。for 补充解释前面的判断，语气比 because 弱，且通常不置于句首；nor 连接否定意义，后面的分句常部分倒装：He did not complain, nor did he give up。
关联并列结构要保持平行：not only to learn the rules but also to apply them。写作时若两个分句过长，可拆句以避免层次不清。
小练习
- 改错：The evidence was limited, therefore we remained cautious.
- 填空：Hurry up, ___ we will miss the opening.
- 补全：She did not call, nor ___ she send a message.
参考答案
- 将逗号改为分号，或在 therefore 前另起一句。
or。did。