2018-2019学年度人教版必修五Unit 1 Great scientist Period 3 Using Language(COPERNICUS’ REVOLUTIONARY THEORY) IntroductionLanguage is learned to be used in and for communication. So in this period after the warming up by looking and listening students will be listening and answering, discussing future jobs, reading a passage about Copernicus and copying its expressions, summing up theories and finally writing a letter to Copernicus.Objectives■To help students read the passage “Copernicus’ revolutionary theory on page 6■To help students use the language by reading, listening, speaking and writingProcedures1. Warming up by looking and listeningHave you ever heard of a man named Qian Xuesen?Qian Xuesen (1911- ), a native of Hangzhou, Zhejiang Province, went to the United States to study in 1935. In 1955 he returned to China, and in 1958 he joined the Communist Party.He served successively as Director of the Institute of Mechanics under the Chinese Academy of Sciences, Vice-Minister of the No. 7 Ministry of the Machine-building Industry, Vice-Minister of the State Commission on Science, Technology and Industry for National Defence and Chairman of the China Association for Science and Technology. He was also elected alternate member of the Ninth through Twelfth CPC Central Committees.Qian played a leading role in the research, manufacture and testing of carrier rockets, guided missiles and satellites, thus making outstanding contributions to the development of China's aerospace industry.2. Listening and answeringTurn to page 5. Listen to the tape in which Qian Xuesen is being talked about. Listen for information to answer the questions on listed on page 6.3. Reading and copyingNow it’s time to read the text COPERNICUS’ REVOLUTIONARY THEORY and underline all the expressions useful to you at the same time. And after class write a short passage making use of the expressions underlined.4. Summing up theoriesNext we shall do some scientific research: to sum up the two theories of the universe with the help of the text.5. Writing a letter to Copernicus(1)Reading about theories by Copernicus1) The center of the Earth is not the center of the Universe, but only the center of the Earth's mass and of the lunar orbit.2) All the planets move along orbits whose center is the Sun, therefore the Sun is the center of the World. (Copernicus was never certain whether the Sun moved or not, claiming that the center of the World is 'in the Sun, or near it.')3) The distance between the Earth and the Sun, compared with the distance between the Earth and the fixed stars, is very small.4) The daytime movement of the Sun is only apparent, and represents the effect of a rotation that the Earth makes every 24 hours around its axis, always parallel to itself.5) The Earth (together with its Moon, and just like the other planets) moves around the Sun, so themovements that the Sun seems making (its apparent moving during daytime, and its annual moving through the Zodiac) are nothing else than effects of the Earth's real movements.6) These movements of the Earth and of the other planets around the Sun can explain the stations, and all the particular characteristics of the planets' movements.(2) Making a plan of writing a letter to Copernicus6. Closing down by making a debateTo end our studies of Copernicus’ theories we shall make a debate whether the Sun is the center or the Earth is the center, of the universe. The class will be cut in two parts, one for Copernicus, the other against Copernicus. Now take five minutes to get necessary facts and arguments.。
