预测一：我认为做过最有意义的一件事情
The Most Meaningful Thing I Have Ever Done
Last month, I volunteered as a guide at Nanjing Museum. At first, I was nervous because I had never done this before.
I studied hard about the ancient artifacts and practiced my introduction many times. When a group of primary school students came, I showed them around the historical hall. A little boy asked me many questions about a bronze sword. I answered them patiently and he listened with shining eyes. After the tour, he said, Sister, you are a great guide. His words made me feel proud.
That experience taught me that helping others learn is a wonderful thing. It was truly meaningful.
预测二：介绍一位南京历史上的名人
介绍一位南京历史上的名人
Zu Chongzhi — A Great Mathematician in Ancient China
Zu Chongzhi is one of the greatest scientists in Chinese history. He lived and worked in Nanjing, which was called Jiankang at that time.
Zu was famous for calculating pi. He found that the value of pi was between 3.1415926 and 3.1415927. This was the most accurate calculation in the world for nearly one thousand years. He also invented the Daming Calendar, which helped people better understand the changing of seasons and the movement of the sun.
I truly admire Zu Chongzhi because he never gave up on difficult problems. His hard work and wisdom make every person in Nanjing proud.
