作者应增加文中长句和从句和使用;作者词汇基础不错,在高级词汇的积累上还要再接再厉;层次欠清晰,衔接成分很少。
Dear teachers and schoolmates, May I have your attention please? I have an announcement to making. In order to help us learn more about China Spaceflight, Professor Li Bo from Peking University will give us a lecture. He will talk about the background of the development of China Spaceflight as well as its process. Besides,astronauts and something about the series of Shenzhou Spaceships will also was introduced. The lecture will be held in Thursday, the fifth to January and it will begin at 2:30 pm in the Lecture Hall of our school. Anyone who's interested in the topic is welcome to attend the lecture. Don't forget to be on time. That's all. Thanks for your attention.