【正文】 A hero is an admirable person. When I really understood the meaning of hero, I said to myself, “I must be a hero, and a hero like Uncle Yang Liwei.”　　the flight of time. Although childhood has quietly left, I still remember the flying dream at that time. Gradually, I learned more about popular science, the myth of Chang’e running to the moon, and the longing of the ancient people for the heavenly palace. Later, I also learned the flying story of ancient officials wanhu. His spirit of daring to devote himself to the flying dream is very worthy of future generations to learn. Of course, there are great risks in space flight. I have also heard the news of space shuttle explosion in the air, but no matter how, it can not stop my desire for space and erase my space dream. Now China’s science and technology are being more and more developed. Shenwu shenliu went to heaven one after another, launched the Chang’e satellite, and formulated the moon landing plan. Looking at these achievements one after another, I have a firm belief in my heart: study hard, study hard, master Aerospace knowledge, exercise Aerospace skills, and realize my Aerospace dream as soon as possible.　　The first lesson of “Tiangong classroom” is scheduled to begin at 15:40 . on December 9. The astronauts Zhai Zhigang, Wang Yaping and ye Guangfu of Shenzhou 13 will give space lectures at the China space station. CCTV will broadcast the whole process live.　　The space teaching activity will be conducted in the way of interaction between heaven and earth. The ground main classroom will be set up in the China Science and Technology Museum, and the ground sub classroom will be set up in Nanning, Guangxi, Wenchuan, Sichuan, Hong Kong and Macao. At that time, the three astronauts will introduce and display the working and living scenes of the Chinese space station on orbit, demonstrate cytological experiments, object movement, liquid surface tension and other phenomena in the microgravity environment, conduct realtime munication with the ground classroom, disseminate manned Aerospace knowledge and stimulate the interest of young people in science.　　The space teaching activity was jointly sponsored by the China Manned Space Engineering Office, the Ministry of education, the Ministry of science and technology, the China Association for science and technology and the China Central Radio and television. CCTV will broadcast the whole process live.　　The teaching activities will be conducted in the way of interaction between heaven and earth. The ground main classroom will be set up in the China Science and Technology Museum, and the ground sub classroom will be set up in Nanning, Guangxi, Wenchuan, Sichuan, Hong Kong and Macao. At that time, the three astronauts will introduce and display the working and living scenes of the Chinese space station on orbit, demonstrate cytological experiments, object movement, liquid surface tension and other phenomena in the microgravity environment, conduct realtime munication with the ground classroom, disseminate manned Aerospace knowledge and stimulate the interest of young people in science.　　Eight years ago, in Tiangong1, 300 kilometers away from the earth, astronaut Wang Yaping brought a new space teaching activity to the first “space class”. Today, the Chinese people’s own space station will usher in the first space teaching. First of all, the “Curriculum” is upgraded! The three astronauts will demonstrate more physical and chemical phenomena under microgravity conditions.　　As a big country, China is realizing its dream of flying step by step. However, the aerospace industry needs successors. Space teaching is to make children love space. First of all, let them approach and understand space. Further stimulate the majority of young people’s yearning for space and their enthusiasm for learning scientific and technological knowledge. Through the teaching method of dialogue between heaven and earth, the mysterious Aerospace Science and technology is gradually penetrated into the popular science education of the whole people, so that the people can have a deeper understanding of the relationship and role between aerospace and life, and then better understand and support the aerospace industry.　　The space course will also demonstrate the characteristics of object motion in microgravity environment and the action of liquid surface tension, so