在做2012年高考《考试大纲》调研卷二的短文改错时，发现一个时态的问题，以平时教学生的时间条件状语从句要用一般现在时代替将来时的视角去做这个题，应该只有9处需要改正，那么到底哪些需要用一般现在时代替将来时呢？请看下面的短文改错：

Dear Peter,

   I am so glad that you are planning to take a summer course in China. OUr university ran summer Chinese language courses at three levels, that are from beginning to advanced. ALl the courses start at early July. Lessons will be given in small classes making of no more than ten students. You will get a lot practice in such a class. All classes are taught flexible by teachers with rich experience in teaching foreign students. Classes meet four hours one day, five days one week---Monday to Friday.If you decide to come or need any further informations, do let you know. I am looking forward to the day when you will arrive.

                                                               Yours,

                                                                     Li Hua

这里的改错答案是(案顺序)：ran--runs, that--which,at--in; making--made, a lot 后加of, flexible--flexibly, the day--a day, informations--information, you--me, you will arrive--you arrive

学生错的最多是：at--on, flexible--flexiblely, the day--one day, you--we, will arrive--will arrive

我们老师之间也在讨论为什么要把will去掉呢？因为will所在的句子是when 引导的定语从句，而不是时间状语从句？！难道真的这个题只有9个错误需要改吗？有几个老师在网上搜出这篇短文材料---一篇作文，而这篇作文没哟最后一句look forward to 这个句子，这引起了我的思考，命题人为什么会把这一句加到短文改错中，而且设置了一个错误，从此可知，这个will 应该拿掉的，那么依据是什么呢？

我首先去网络上搜寻（用林格思查寻）,发现很多look forward to the day when的句子，但是这里没有用将来时态的，例子如下：

这些句子要么用现在时态，要么用情态动词can ,may或might，但是这里没有说明依据。

我把《英语用法指南第三版》(Michael Swarn (British)编写）翻开来，寻找the day when和不用将来时态这两个要点，发现本书上描述：the day when /the time when中的when 可以省略，而用一般现在时态代替将来时态的不仅用于时间、条件状语从句中，还有以下的句子中（摘抄一部分例句）

Make sure you come back soon.

He says he will give five pounds to anybody who finds his pen.

I'll go where you go.

One day the government will really ask people what they want.

从这两个方面去分析，一般现在时态使用于对某种事实的描述。这只是自己的理解和想法，希望有高手为我指点迷津。欢迎把信息发给我（可以评论的方式）。期待中......