The purpose of reading The Mystery of Cosmic Life is to let students know the knowledge of expository writing and cultivate their ability to read expository writing purposefully and systematically.

First of all, the mystery of life in the universe

The Mystery of Life in the Universe is a popular science article, which introduces the difficult course of scientists exploring whether there is life outside the earth, and finally shows that up to now, whether there is life outside the earth is still an unsolved mystery. The article not only shows the scientific spirit of cautious exploration, but also has some vivid descriptions, which enable students to learn the spirit of scientists' pursuit of true knowledge and continuous exploration, and stimulate their interest in loving science, learning science and exploring the mysteries of the universe.

The first part is about whether there is life outside the earth since ancient times. In the second part, firstly, it is explained that the earth is by no means the only living celestial body in theory, and then the exploration process of scientists is introduced in detail. The third part People have not found life outside the earth so far, but they still believe in life and have been exploring the mystery of life in the universe.

2. The authors of The Mystery of Cosmic Life are Zhang and Zhao Xiaomei.

1, Zhang Shenbei, 1958, joined Shanghai Institute of Biochemistry, Chinese Academy of Sciences, senior engineer, deputy director of research planning department of Shanghai Institute of Biochemistry, Chinese Academy of Sciences, vice president of Shanghai Branch of China Academy of Sciences, and director of preparatory office of Shanghai Bioengineering Experimental Base of China Academy of Sciences.

2. Zhao Xiaomei, editor-in-chief, whose main works are Reineckea carnea, Writing Tutorial and HSK Chinese Proficiency Test. The main content of "The Mystery of Life in the Universe" is that this text introduces the difficult course of scientists exploring whether there is life outside the earth, indicating that up to now, whether there is life outside the earth is still an unsolved mystery.

Third, the development process of space exploration

1In June, 957, the former Soviet Union launched the first artificial earth satellite. Since the 1960s, various manned spacecraft and space shuttles have entered space, and the means of observation have been greatly improved (astronomical telescope). In the 24 years from 1957 to 198 1, human beings have always been right.

At 4: 00 pm EST1July 20th, 969, Armstrong carefully stepped on the surface of the moon with his left foot, which was undertaken by Apollo XI. This is the first time that man has landed on the moon.