要写好英语建议作文，可以遵循以下几个步骤和技巧：

明确目的

在开始写作之前，首先要明确你写建议信的目的。是为了提出改进措施，还是为了表达关心和支持？明确目的有助于你更好地组织内容。

使用正式的格式

建议信应采用正式的书信格式。开头使用“Dear [收信人姓名]”，结尾使用“Yours sincerely, [你的姓名]”。

结构清晰

建议信的结构应包括引言、主体和结尾。

引言：简要说明写信的目的。

主体：详细阐述你的建议和理由。每个建议可以单独成段，确保逻辑清晰。

结尾：总结建议，并表达希望对方采纳的愿望。

使用礼貌的语气

建议信应保持礼貌和尊重，避免使用命令式的语言。使用“could”、“might”、“would”等情态动词，使建议更加委婉。

常用句型

It is useful/helpful/important/necessary for you to do sth.（对你来说做某事是有帮助的/有用的/重要的/必要的）。

I would like to suggest that + 句子（我想要建议你做）。

If I were you, I would do sth.（如果我是你，我会做）。

I would like to make a recommendation that + 句子（我推荐你做）。

It is of benefit to do sth.（做某事是有益的）。

From my perspective, it would be better if you did sth.（在我看来，你做会更好）。

具体到内容方面

通常可以从推荐专业入手，附上理由，并详细说明申请专业的基本条件。

备考策略也需要包括在内，强调词汇量的重要性，并鼓励进行大量阅读和写作练习。

确保写作的流畅性

在准备阶段应多加练习，尤其是在时间限制内完成建议信的写作。这将有效提高应考时的自信心和表达能力。

Dear [收信人姓名],

I am writing to express my concerns about the quality of food served in our school cafeteria. I believe that improving the quality of food would enhance students' overall satisfaction and well-being.

Firstly, the variety of food offered is limited, which does not cater to the diverse tastes of students. Secondly, the portion sizes are often too small, leaving students hungry after meals. Lastly, there is a lack of freshness in the food, which can affect students' health.

To address these issues, I suggest that the school cafeteria consider increasing the variety of food options, providing larger portions, and ensuring that the food is freshly prepared. These changes would not only improve the taste and nutrition of the meals but also foster a more enjoyable dining experience for students.

I hope my suggestions are taken into consideration and that tangible improvements can be made to the school cafeteria's offerings.

Yours sincerely,

[你的姓名]

通过遵循以上步骤和技巧，你可以撰写出一篇结构清晰、内容具体且礼貌的建议信。