关联词在英语中扮演重要角色，帮助表达复杂思想和逻辑关系。常见的关联词包括连接同类项的“and”，“or”，“nor”，连接对立项的“but”，“yet”，“however”，连接原因和结果的“because”，“so”，“therefore”，以及连接时间和顺序的“first”，“then”，“finally”。掌握这些关联词可以使口语和写作更清晰、有条理。
1. 连接同类项的关联词
- and - 表示并列或者添加信息，例如：“I like to read books and watch movies.”
- or - 表示选择或者提供选项，例如：“Do you want tea or coffee?”
- nor - 表示否定的并列关系，例如：“I neither smoke nor drink.”
2. 连接对立项的关联词
- but - 表示转折或对比关系，例如：“She is very smart, but she is also very humble.”
- yet - 表示转折或者意外的结果，例如：“He failed the test, yet he still passed the class.”
- however - 表示转折或者限制条件，例如：“I would like to help you, however, I am very busy right now.”
3. 连接原因和结果的关联词
- because - 表示原因，例如：“I didn't go to the party because I was feeling sick.”
- so - 表示结果或者推论，例如：“I was feeling sick, so I didn't go to the party.”
- therefore - 表示结果或者推论，例如：“She studied very hard, therefore she got a good grade.”
4. 连接时间和顺序的关联词
- first - 表示首先，例如：“First, we need to gather all the necessary materials.”
- then - 表示接着，例如：“We need to mix all the ingredients, then we can put them in the oven.”
- finally - 表示最终，例如：“Finally, we can enjoy our delicious meal.”
