1. There is/are ... (某地/某时有某物)。
2. Something is happening that ... (发生了某事)。
3. Something takes place that ... (发生了某事)。
4. We observe/notice that ... (我们注意到某事)。
5. We experience/suffer from ... (我们经历/遭受某事)。
6. Something appears/disappears that ... (某物出现/消失)。
7. Something is noticed/observed that ... (某物被注意到)。
8. There is a sudden/gradual change in ... (某物发生了突然/逐渐的变化)。
9. Something is developing/changing that ... (某物在发展/变化)。
10. We find/discover that ... (我们发现某事)。
这些句型可以帮助您描述各种现象，包括自然现象、社会现象、经济现象等。您可以根据具体情况选择合适的句型来描述现象。
引出存在的弊端：But there are also having some problems.For example~
应该怎样做：We must take some measures.Firstly,;secondly,;finally,.