英语中表达顺序的高级短句词及短语可分为以下五类，结合权威性和时效性信息整理如下：

一、表示顺序或步骤的短语

首先/首要

- Initially, First and foremost, To begin with, First of all, At the outset, Primarily, Foremost, At the very beginning, To commence with

- 例句：First and foremost, we need to ensure that everyone understands the plan.（首先也是最重要的，我们需要确保每个人都理解这个计划）

其次/其次

- Secondly, Then, Next, Afterwards, Later on

- 例句：We finished our lunch. Afterwards, we went for a walk.（我们吃完午饭，随后去散步）

最后/总结

- Finally, Last but not the least, Above all, All in all, To sum up, In one word, On the whole

- 例句：Finally, we need to consider the long-term impact of this decision.（最后，我们需要考虑这一决策的长期影响）

二、递进或补充说明的短语

此外/另外

- In addition, Besides, What’s more, Meanwhile, Additionally, Moreover, Furthermore

- 例句：She is good at math. In addition, she excels in science.（她擅长数学，此外还精通科学）

尤其/核心

- Foremost, Primarily, Foremost, Foremost（强调核心内容）

- 例句：Foremost among the challenges is ensuring data security.（首要挑战是确保数据安全）

三、时间或逻辑衔接的短语

因此/结果

- Consequently, Therefore, Thus, Hence

- 例句：Consequently, we need to adjust our strategy.（因此，我们需要调整策略）

对比/转折

- However, On the contrary, Conversely

- 例句：However, the new policy has some unintended consequences.（然而，新政策存在一些非预期后果）

四、总结性短语

整体概括

All in all, In conclusion, In summary, To conclude

例句：All in all, the project's success depends on teamwork.（总之，项目的成功取决于团队协作）

注意：

以上短语需根据具体语境选择使用，避免重复或冗余。高考写作中建议优先使用权威资料（如学科网、高考真题）中的高频短语。