高中英语中，倒装句是一个非常重要的语法知识点。倒装句的特点是将句子的主语和谓语的位置调换，以达到强调语气或使句子更加流畅的作用。下面是20个高中英语倒装句的例句，让我们来一起学习。

1. Never have I seen such a beautiful sunset.（我从未见过如此美丽的日落。）

2. In no way did she expect to win the competition.（她完全没有期望赢得比赛。）

3. Not only did he forget his homework, but he also lost his textbook.（他不仅忘了作业，还丢了课本。）

4. Rarely do I have time to relax.（我很少有时间放松。）

5. Little did she know that her life was about to change forever.（她并不知道她的生活即将永远改变。）

6. Not until midnight did he finish his work.（直到午夜他才完成了他的工作。）

7. Seldom have I seen a more beautiful garden.（我很少看到比这更美丽的花园。）

8. Never before have I tasted such delicious food.（我从未尝过如此美味的食物。）

9. Only when you take action can you achieve your goals.（只有当你行动起来，才能实现你的目标。）

10. Hardly had I sat down when the phone rang.（我刚坐下电话就响了。）

11. Under no circumstances should you give up.（在任何情况下都不应该放弃。）

12. Not once did he complain about the hard work.（他从未抱怨过艰苦的工作。）

13. Nowhere else have I seen such a beautiful beach.（我从未见过如此美丽的海滩。）

14. Only by working hard can you achieve success.（只有通过努力工作，才能取得成功。）

15. Never in my life have I felt so happy.（我一生中从未感到如此幸福。）

16. Only after you have finished your homework can you watch TV.（只有在你完成作业后才能看电视。）

17. Not until she had left did I realize how much I missed her.（直到她离开了，我才意识到我有多想念她。）

18. Rarely have I seen a movie as good as this one.（我很少看到像这样好的电影。）

19. Only when you face your fears can you overcome them.（只有当你面对恐惧时，才能克服它们。）

20. Hardly had I finished my breakfast when my friend arrived.（我刚吃完早餐，我的朋友就到了。）

这些例句展示了倒装句在英语中的多种使用方式。通过学习这些例句，我们可以更好地掌握倒装句的用法，提高自己的英语水平。