在学习英语的过程中，掌握一些高级句型不仅能提升语言表达的层次感，还能让我们的写作和口语更加生动有趣。以下是精心整理的50个英语高级句型，供各位学习者参考：
1. It is not until... that...
- 直到...才...
2. The more..., the more...
- 越...就越...
3. So + adj./adv. + that...
- 如此...以至于...
4. Such + n. + that...
- 如此...以至于...
5. Not only... but also...
- 不仅...而且...
6. Neither/nor + 助动词/情态动词/be动词+主语
- 既不...也不...
7. Hardly/scarcely... when/before...
- 几乎不...就...
8. No sooner... than...
- 一...就...
9. As soon as...
- 一...就...
10. While...
- 当...的时候...
11. When...
- 当...的时候...
12. Although/though...
- 尽管...
13. Even if/even though...
- 即使...
14. Because of...
- 因为...
15. Due to...
- 因为...
16. Owing to...
- 因为...
17. Thanks to...
- 多亏了...
18. In order to...
- 为了...
19. So as to...
- 以便...
20. As long as...
- 只要...
21. As far as...
- 就...而言
22. In case...
- 以防...
23. Unless...
- 除非...
24. If only...
- 要是...就好了
25. What if...
- 如果...会怎样
26. How come...
- 为什么...
27. It is said that...
- 据说...
28. It is reported that...
- 据报道...
29. It is believed that...
- 人们相信...
30. It is thought that...
- 人们认为...
31. It is suggested that...
- 建议...
32. It is expected that...
- 预期...
33. It is known that...
- 众所周知...
34. It is clear that...
- 很明显...
35. It is obvious that...
- 显而易见...
36. It is certain that...
- 肯定...
37. It is possible that...
- 可能...
38. It is impossible that...
- 不可能...
39. It is likely that...
- 很可能...
40. It is unlikely that...
- 很不可能...
41. It is necessary that...
- 必须...
42. It is important that...
- 重要的是...
43. It is urgent that...
- 紧急的是...
44. It is desirable that...
- 希望...
45. It is regrettable that...
- 遗憾的是...
46. It is surprising that...
- 令人惊讶的是...
47. It is interesting that...
- 有趣的是...
48. It is strange that...
- 奇怪的是...
49. It is natural that...
- 自然的是...
50. It is normal that...
- 正常的是...
以上这些句型涵盖了各种常见的语法结构和表达方式，希望对大家的学习有所帮助。通过不断练习和运用，我们可以逐渐熟练掌握这些高级句型，并将其灵活运用于实际交流中。
