除了 `besides`, `whereas`,听力中还有大量表示逻辑关系的词,听懂它们等于拿到了听力内容的“地图”。
- **因果**: `therefore`, `as a result`, `consequently`, `due to`
- **转折/对比**: `however`, `nevertheless`, `on the other hand`, `in contrast`
- **递进/补充**: `moreover`, `furthermore`, `in addition`
- **强调**: `in fact`, `indeed`, `especially`, `obviously`