写一封英语询问信时，确保信件结构清晰、礼貌，并且直接表达你的问题或请求。以下是一个基本的询问信写作模板，你可以根据自己的具体需求进行调整：

[你的全名]
[你的地址]
[城市，邮编]
[电子邮箱]
[电话号码]
[日期]

[收件人全名或职位]
[公司名称或机构名称]
[公司地址]
[城市，邮编]

尊敬的 [收件人全名或职位]，

主题：[简短而明确地说明信件的主题]

首先，我衷心感谢您在百忙之中阅读我的来信。我写信是为了询问关于[具体问题或请求]的相关信息。

[在这里，详细说明你的问题或请求。提供任何必要的背景信息，以便收件人能够更好地理解你的需求。]

我非常希望得到您的回复，并且[如果适用，说明你希望收到回复的时间]。如果可能的话，我期待着[如果适用，说明你希望进行的下一步，例如电话沟通、会议等]。

再次感谢您的时间和帮助。我期待着您的回复，并希望能够得到您的宝贵建议。

此致
敬礼！

模板1：

Dear ______,

I am writing to see if it is possible for you to provide some information regarding ______.

Currently, I am doing ______ / planning ______ / organizing ______, and in urgent need of the following things. First of all, ______. Secondly, ______. Thirdly, ______.

I would also like to inquire if ______. If so, could you please ______.

Your prompt attention would be highly appreciated, and thank you for your consideration.

Yours sincerely,

Li Ming

模板2：

Dear ______,

I am ______, and I would like to have some information about ______.

At present, I am doing ______ and I intend to ______. Therefore, I should be much obliged if you would kindly furnish me with details concerning ______. Other than that, I also need ______.

I am expecting your reply with heartfelt appreciation.

Yours sincerely,

Li Ming