我的学校。

我的学校。

我的学校

大家好！

今天我想介绍【一下】我【曾经就读过】的【一所】学校。二十年前我【在】那里学习【过】 。我不喜欢它，【尽管】它确实很大又很新。（这所/那所）【学校】有很多教室，【老师/教师】也很多。上课的时候老师【会】介绍学校【的】课程，【给】【我们/学生】太多的信息, 问问题【（向我们/学生）提问】，让我们【/学生】读书。我跟【/和】我的同学【去】上课、听讲【/听老师讲解】，学习很多课程， 【还要】做【很多】作业。我们【要】准备考试，很多和知道对回答这个问题（Maybe 为了答对题要做很多准备？？？not clear phrasing, making no sense)， 但是考试很难【，不容易考到高分/,（要）想考（到）高分很难】。

过1 （following a verb or adjective）means " ONCE DID sthing or sth once took place", used in talking about things in the past time:

我在那所学校学习过（not 了）.

了1 (comes at the end of a clause）means "HAVING ALREADY done OR HAVING ALREADY STARTED doing sth,  or sth having already taken place". It has nothing to do with time/tense ---- quite often native Chinese speakers would tell Chinese (as second language) learners that 了1 or 过2 indicates past time: a popular and plausible notion, it is not true,though. 

下雨了！（present time）

枫叶红了！（present time）

她已经结婚了。（past or present time）

我已经写了两本书了。（past or present time）

明天小李回来接替你，那时候你就可以休假了。（future time）

那家书店搬走了，我不会再去那里买书了。（future time or subjuction mood）

过2 means having finished doing sth. or sth having finished. 了2 means the same as 过2, only more informal or colloquial. 

Both do not carry any temporal/time information.

昨天他吃过（了）早饭就出门了。(past time)

明天你吃过（了）早饭就去买米啊！(future time)

I once wrote an article detailing the meanings and uses of 了 and 过 for certain italki.com askers. Maybe you can still search and find it.