I came into the world since I was born.I could grow up healthily in a warm cradle under the meticulous care of my parents.I went to sleep with lullaby at that times.Further more,I did not need to take thought for hungry and chillness.

    My childhood was lack of worry.I could play games with friends to my hearts' content,except that I had to bear the teacher's chatter in class.I could also evade by way of crying when I was criticized by my parents.The uppermost thing was that I had not to think about the complicated things which seemed hard to deal with for an adult.

    I am 24 years old now.However,I still yearn for the life of my childhood.I long for going back to the past,to my golden childhood.

    Recently it has been sunny but a little cold.Yesterday,we visited Guyaju and the wild animal zoo in Yanqing,which is located in the north of Beijing.We took a lot of photos there.

    Guyaju,which sits in a quiet valley,is the dwellings dug by the ancients on the steep cliff.It is said to be the largest and most high-grade site in settlement near Beijing.In my opinion,Guyaju has shown how wise and diligent our ancetors were.

    In the wild animal zoo,we appreciated the competitive scene of predation when we fed some wild animals with live chickens.We also patted some mild animals such as camel and horse.

    Yesterday afternoon,Professor Negishi,a famous Japanese chemist,who was invited to Peking University from America,gave us a wonderful report on organometallic chemistry.Some new advances on the reseach of transmetalation have been reported,including the application in total synthesis.I had gained a lot.

    I was deeply impressed by his charm. I found a great gap,whether in way of thinking or academic level,between him and me still existed.It would be a long way to go for me to make great contribution in my research field.

    Now what I have to do is keep pushing,keep pushing,keep pushing!

    I have been staying in a public privacy study room of the library all the day,during which I recited fifty organic named reactions and the rules of laboratory safety which would be involved in the examination next Wednesday.Too many exams have been arranged in recent weeks.I also have to prepare a report for the course of Theoretical Organic Chemistry.

    It is not easy studying in Peking University.I have to bear great pressure every day.I need to have a rest,and I long for relaxation and entertainment.When can I enjoy the life of a common person?

    I got Hepatitis A Vaccine injected on my left arm this morning.I had no sensation at the beginning.But I felt some pain around the nail hole after a period of time.Moreover,the pain with a little numbness seemed to be different from that I was injecting Hepatitis B Vaccine several years ago.I wonder if the injechor is larger than the one used last time.On the other hand,it was painful for me that I spent 80 yuan on the injection.However,I knew that I would have spent much more money on treatment or even missed some classes if I was infected by Hepatitis A virus some day.

    Health is the most important thing to an individual.Health is the basic condition for sustaining a life.To keep healthy,one has to take exercises in daily life.So the slogan which writes "Do Exercises For 1 Hour Every Day,And Work Healthily For 50 Years" is often seen in public places.

    I took the test of characterization technique yesterday evening.I did rather bad.Only a few questions that I had recited could be seen on the paper.I think I will fail to pass the exam without the teacher's help.To be honest,I really don't want to come back to make up from Shenzhen next year.But I have to say that it is the responsibility of my own.I have not been so careful in class for I am not interested in the content.

    I have always been in low condition when I was taking the exam these days.Maybe that is because what happened a few days before make me down in spirits.I have tried my best to raise my emotion.However,I still need more time to bottom out.

    I have been in Peking University for more than two months,and have basically adapted the climate here.Actually,the climate of Beijing is similar to my hometown,which is a medium-sized city in Liaoning Province.In general,it is neither too cold in winter nor too hot in summer.Sandstorms often come as a result of the strong wind blowing in spring or autumn.The precipitation is abundent from June to September every year.Moreover,drought is a frequent phenomenon from late autumn to early spring.Such is called a temperate semimoist monsoon climate—a typical climate in the north of China.