3． 第2段第4句和第5句之间的连接差一点，加一个转折词语，如Besides, In addition或In the meantime等读起来要好一些。
现将原文稍作修改，供读者参考：
I am delighted to learn that you are going to visit me during the weeklong holiday. My parents will also be happy to see you again. I am sure you will enjoy every minute of your stay here.
I know you are fond of swimming. A river lies not far away from my home. We can go swimming there. I think it will be very pleasant and refreshing to swim in such hot summer days. In the meantime, as there is an air-conditioner in every big room of our house, we can watch TV, play VCDs or read books very comfortably when we stay at home.
About two miles away from here there is a beautiful mountain. We can get there on foot. I assure you it will be great fun climbing it. When we reach its top, we can have a bird’s-eye view of the country for miles around.
Just phone me before you set off. There is no need for you to bring anything. I’ll prepare everything for you.
I am looking forward to seeing you soon.