一、引出观点类

1. There's no denying that...（毫无疑问，无可否认）

2. Nothing is more important than...（没有什么比这更重要的是）

3. What's more important is that...（更关键的是）

4. As a matter of fact, ...（事实上是）

5. In my opinion, ...（在我看来）

例句：

*There's no denying that the environment is getting worse.*

*Nothing is more important than protecting our wildlife.*

*What's more important is that we take action immediately.*

二、举例说明类

1. A case in point is...（一个典型的例子是）

2. For instance, ...（例如）

3. Take, for example, ...（以……为例）

4. Such as...（如……）

例句：

*A case in point is the increase in plastic waste.*

*For instance, many cities are imposing bans on single-use plastics.*

*Such as smartphones, straws, and bags.*

三、背景铺垫类

1. With the rapid development of...（随着……的快速发展）

2. Nowadays, ...（如今，……）

3. In recent years, ...（近年来，……）

例句：

*With the rapid development of technology, communication has become more convenient.*

*Nowadays, people are more health-conscious.*

*In recent years, renewable energy has gained popularity.*

四、转折对比类

1. However, the problem is not so simple...（然而，问题并非如此简单）

2. On the one hand, ...；on the other hand, ...（一方面，……；另一方面，……）

3. Although...，...（尽管……，……）

例句：

*However, the problem is not so simple； it requires a long-term effort.*

*On the one hand, urbanization brings convenience；on the other hand, it causes pollution.*

*Although we have made progress, we still have a long way to go.*

五、总结归纳类

1. In conclusion, ...（总结：……）

2. To sum up, ...（概括：……）

3. Ultimately, ...（最终，……）

例句：

*In conclusion, protecting the environment is everyone's responsibility.*

*To sum up, we should balance development with sustainability.*

*Ultimately, education is key to solving many social problems.*

建议写作时根据文章主题选择合适模板，并灵活调整句子结构。例如，描述现象可用"背景铺垫类"，阐述观点用"引出观点类"，举例说明则用"举例说明类"。