雅思写作的开头和结尾应该简洁明了，同时保持逻辑清晰和说服力。以下是一些常用的开头和结尾的表达方式：

开头

引入话题

The issue of [topic] is of great interest to many people.

The topic of [topic] is of great concern for many parents.

The subject of [topic] is of great importance to many scientists.

提出论点

In this essay, I will be making the case for [position].

I believe that [argument].

My argument is that [detail].

描述现象

It is true that [fact].

I tend to agree that [opinion].

It is quite common that [commonality].

结尾

总结观点

In conclusion, I believe that [summary of main argument].

Therefore, I maintain that [reiteration of position].

It follows that [logical consequence].

提供结论或建议

In light of the evidence presented, I conclude that [final thought].

Finally, it is clear that [summary of conclusions].

Based on the discussion above, I suggest that [action or recommendation].

重申观点

Therefore, while [one argument] is true, [another argument] is also significant.

Although [first point] is valid, it is important to consider [second point].

自然流畅

To sum up, the main points of this essay are [summarizing the key points].

Overall, the evidence supports the conclusion that [final conclusion].

示例

开头：

The issue of climate change is of great concern to many people around the world.

In this essay, I will be arguing that reducing carbon emissions is crucial for the future of our planet.

结尾：

In conclusion, it is clear that immediate action is necessary to combat climate change.

Therefore, I maintain that governments and individuals must work together to implement effective solutions.

通过这些模板和技巧，你可以有效地构建一个清晰、有说服力的雅思写作开头和结尾。