There are several reasons.

I have been deeply impressed by the academic atmosphere when I came here last summer.In my opinion，as one of the most famous ******in our country，it provides people with enough room to get further enrichment.This is the first reason.

The second one is I am long for doing research in ******throughout my life. It’s a pleasure to be with my favorite ******for lifetime.I suppose this is the most important factor in my decision.

Thirdly，I learnt a lot from my *****job during the past two years.However，I think further study is still urgent for me to realize self-value.Life is precious.It is necessary to seize any chance for self-development，especially in this competitive modern world.

In a word，I am looking forward to making a solid foundation for future profession after two years study here.