英语说明文是一种以说明为主要表达方式的文章，它通常用于介绍事物、解释原理、提供信息等。以下是英语说明文常用的一些句型：
1. This is a ... that ... - 这是一个...，它...
2. The purpose of this article is to ... - 本文的目的是...
3. We will now discuss ... - 我们现在将讨论...
4. First, let's consider ... - 首先，让我们考虑...
5. Next, we will look at ... - 接下来，我们将看看...
6. Finally, we will summarize ... - 最后，我们将总结...
7. It is important to note that ... - 值得注意的是...
8. There are several reasons why ... - 有几个原因导致...
9. It can be seen that ... - 可以看出...
10. It is clear that ... - 很明显...
11. Research has shown that ... - 研究表明...
12. Studies have found that ... - 研究发现...
13. In conclusion, ... - 总之，...
14. To sum up, ... - 总的来说，...
15. In summary, ... - 总结，...
这些句型可以帮助您组织文章结构，清晰地表达观点，使文章更加流畅易懂。当然，不同的文章类型和写作风格也会有所不同，您可以根据实际情况选择适合的句型。
英语说明文常使用以下句型：
As far as...is concerned 就……而言
It goes without saying that... 不言而喻，......
It can be said with certainty that... 可以肯定地说......
As the proverb says，正如谚语所说的，
希望对您有所帮助！
