Why is the frontier of the universe endless?

The Frontier of the Universe is the commentary of a TV documentary, which is selected from carl sagan's Cosmos. Cosmos has been translated into more than 10 languages and shown in more than 60 countries and regions, with an audience of 500 million. Let's take a look at the teaching plan of Frontier of the Universe! Knowledge objective: 1. Guide students to connect with reality and understand the characteristics of commentary. 2. Guide students to know some basic knowledge about the universe. Ability goal: 1. Guide students to understand the author's thinking about the universe and human beings with the help of incisive arguments and passionate emotional expressions in the text, and trigger their own thinking. 2. Expand students' thinking level and cultural literacy. Moral education goal: to stimulate students' curiosity and exploration spirit. Key and difficult points: 1. Guide students to connect with reality and understand the characteristics of commentary. 2. Guide students to understand the author's thinking about the universe and human beings with the help of incisive arguments and passionate emotional expressions in the text, and guide them to think for themselves. Teaching method: 1. Read and analyze the structure of the full text. 2. Guide students to understand the author's thinking about the universe and human beings with the help of incisive arguments and passionate emotional expressions in the text, and guide them to think for themselves. Teaching hours: the first class of two classes teaching process: First, the vast universe of introducing new lessons is boundless. Since ancient times, people have had endless reverie about the universe. Since the emergence of science, people have never stopped exploring the universe. With the development of science and technology, people are more and more eager to understand the mysteries of the universe. Frontiers of the Universe II. Clear target 1. Guide students to connect with reality and understand the characteristics of commentary. 2. Guide students to understand the author's thinking about the universe and human beings with the help of incisive arguments and passionate emotional expressions in the text, and guide them to think independently. Third, the overall perception 1. Author's brief introduction carl sagan (1934— 1996), an American, was once the director of the Center for Planetary Research at Cornell University, and was called "public astronomer" and "public scientist". With his passion for science and great personal influence, he led generations of young people to explore science. He played an important role in sending unmanned spacecraft into space and made many achievements in planetary science, the origin of life and the exploration of alien intelligence. He has hosted TV popular science programs and published a large number of popular science articles and books. His "Flying Dragon in the Garden of Eden" won the Pulitzer Prize, and the TV series "Universe" received a warm response all over the world. His major works include Cosmic Connection, Cosmos, Brouca's Brain, The Shadow of Forgotten Predecessors, Dim Blue Dot, Billions of Planets, etc. 2. Stylistic characteristics of the commentary The text is a commentary of a TV movie, which has the following characteristics: (1) The commentary should have a clear theme and key points according to the characteristics of the narrator, and cannot cover everything. We should highlight the main aspects of things and grasp the key points of things. Even the expanded content cannot be divorced from the theme of the commentary. If the object of text explanation is the universe, then it should be introduced in close connection with the composition of the universe, and other problems should not be brought up at will. (2) Commentary supplements and increases the narrator's relevant information, mainly the expansion of knowledge and reason, which makes readers accept the meaning that pictures and objects themselves cannot convey and express. For example, the introduction of the basic concept of light-year (knowledge expansion) in this paper compares the universe to the sea and stimulates readers' imagination of the universe (rational expansion). (3) Commentary is an organic whole, but each part is relatively independent. From the whole universe to the composition of galaxies to the solar system, although all parts are closely related, they have their own emphases and centers. 3. The narrative sequence of this paper is visual, with the camera slowly advancing from large-scale space to small-scale space. As far as our reading is concerned, the text has been separated from the TV visual picture (we can still feel the influence of the TV picture on the text, such as "we have now returned to our backyard" and other guiding words) and has become an independent article. From the order of interpretation, the order of interpretation is spatial order: the star of the universe (galaxy group, sub-galaxy), the planet of the solar system. The advantages are: (1) Although we live in, (2) The spatial scale is from large to small, so that readers can understand the whole first and then go deep into the local details, so that the order is clear and the hierarchy is clear, which is in line with readers' thinking habits. (3) From the vast universe, through the endless space, and finally back to the home of mankind, this is a process of exploration and discovery, which shows human admiration for the universe and enthusiasm for "mastering their own destiny". The future of mankind depends on our understanding of the universe. Looking back at the earth from the universe is the road to the future of mankind. The order of explanation accords with the author's idea. The second class, 4. Key and difficult learning and goal completion process 1. Q: This paper uses a lot of arguments and lyricism. What's the effect? Clarity: The text supplements a lot of relevant knowledge, but what is more prominent is that the author expresses his thoughts and feelings, including a long discussion and lyricism. For example, the first three paragraphs and the last two paragraphs are strongly argumentative and lyrical, integrating reasoning and lyricism, and naturally cooperating with explanatory words to convey the author's understanding of the universe and mankind. Comments and lyricism in the paragraph can also be seen everywhere, for example, "If we are left in the universe at will, our chances of attaching to or falling next to a planet are only one in 1033. In daily life, such opportunities are' enviable'. It can be seen how precious celestial bodies are. " 2. Q: Man's understanding of the universe began with the earth. Why doesn't the author's explanation follow the track of the development of human cognition? Clear: Of course, it is also good to introduce it according to the course of human understanding of the universe. The introduction order of the text conforms to the law of the evolution of the universe. First there is the universe, then there are galaxies, then there are stars, then there are planets, so it is convenient to sort out knowledge; Secondly, this is the commentary of a TV series. From the point of view of photography, it is easy to grasp the whole first and then the part, and it is easy to show confusion and the visual picture is not harmonious. 3. Question: How much does the author know about the universe? Clear: The universe is vast and mysterious. The earth where human beings live is just a drop in the ocean in the universe. "Its existence may only mean something to us." The universe does not exist because of the earth and the people living on it, but the future of mankind depends on the degree of understanding of the universe. 4. Question: How much does the author know about human beings? Clear: human beings are insignificant in the universe, "just a dust flying in the morning window"; Most of the problems that human beings care about are insignificant and meaningless to the universe; But human beings are brave and glorious. They explore the vast universe with their small bodies. The smallness of human beings is as great as the universe. 5. ask questions; There are a lot of arguments and lyricism in the article. Does it interfere with the interpretation of the universe? Clarity: As a TV commentary, we should not only let the audience know the objective composition and related knowledge of the universe, but also express the subjective understanding of the universe and the significance of human exploration of the universe, thus infecting the audience and stimulating their interest in the universe. Therefore, discussion and lyricism not only did not interfere with the introduction, but made it more scientific and humanistic. Fifth, assign homework to complete "seminar and exercise I and II".