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大学英语一教案 New College English (Book I) Unit 3 1.教学目的和要求 Objectives: Students will be able to: 1) grasp the main idea and structure of the text . 2) learn to read passages for the first time understanding the general idea and for the second time finding out the details and the answers to the questions. 3) master the key language points and grammatical structures in the text; 4) conduct a series of reading, listening, speaking and writing activities related to the theme of the unit. 2.教学的主要内容 1) Important words and language points in the text: initiative rate ensure democratic inform element genetic mathematical in the form of precise sufficient convey fit into 2) Writing technique This text is a piece of expository writing, and provides a good opportunity to note the style differences between narration and exposition. Expository writings usually employ longer paragraphs in which there are longer and more involved sentences. A typical piece of expository writing begins with a statement of opinion, then goes on to give supporting details,. In this text, in Para.3 the opinion is advanced that the public need education in science so as to make informed decisions on their own fate. In the following paragraphs the author details the way to educate the public. In the last paragraph a conclusion is supplied -- human civilization will survive if the public understands science more fully. 3) Cultural background Stephen Hawking i. Brief Introduction to Stephen Hawking Stephen Hawking (1942~ ): British theoretical physicist and mathematician ii. Chronology of Stephen Hawking – 1942 Born in Oxford, England. – 1958 Entered Oxford University and became especially interested in thermodynamics (热力学), relativity theory, and quantum mechanics (量子力学). – 1962 Received a bachelor’s degree in physics and then enrolled as a research student in general relativity at the University of Cambridge. – 1966 Earned his Ph.D. degree at the University of Cambridge. Stayed at the University of Cambridge to do post-doctoral research. Diagnosed as having Amyotrophic Lateral Sclerosis (ALS) (肌萎缩性脊髓侧索硬化). - １ -

大学英语一教案 (Quote: “I am quite often asked: How do you feel about having ALS? The answer is, not a lot. I try to lead as normal a life as possible, and not think about my condition, or regret the things it prevents me from doing, which are not that many.”) – 1977 Became a professor of physics. – 1979 Appointed Lucasian Professor of Mathematics at Cambridge, a post once held by Isaac Newton. – 1988 Published his famous book A Brief History of Time: From the Big Bang to Black Holes. – 1993 Wrote Black Holes and Baby Universes and Other Essays. – 1996 Co-authored a book with Sir Roger Penrose titled The Nature of Space and Time. iii. Main Achievements of Stephen Hawking singularity: (A point in space-time at which the space-time curvature (曲率) becomes infinite.) black hole: (A region of space-time from which nothing, not even light, can escape. Nothing can escape because gravity is so strong.) With the help of the following words and expressions, listen to a recording of more information on black hole. Clone i. News News 1 In Feb. 1997 In February 1997 a group of geneticists (遗传学家) led by Ian Wilmut at the Roslin Institute in Edinburgh, Scotland, announced that they had cloned a sheep from the mammary gland tissue (乳腺组织) of a six-year-old ewe (母羊), the first time scientists have been able to clone an adult mammal (哺乳动物). News 2 In Apr. 1998 Dolly, the first-ever mammal to be successfully cloned from an adult cell, with her first lamb, named Bonnie, is seen at the Roslin Institute in Edinburgh, Scotland in this image on April 23, 1998. Dolly, who was naturally mated at the end of last year with a Welsh Mountain ram (公羊), gave birth to Bonnie on April 13, proving that despite her unusual origins, she is able to breed normally and produce healthy offspring. News 3 In Feb. 2003 Dolly, the sheep, the first mammal to be successfully cloned from an adult cell, has been put down after she was found to have a lung disease, the Roslin Institute in Scotland’s capital Edinburgh said on Feb 17, 2003. “She was suffering from an incurable disease,” said Dr. Harry Griffin, after Roslin released a statement saying the decision had been taken to put Dolly down after she contracted (感染) progressive lung disease. ii. Discussion What is your attitude towards clone? Albert Einstein Though he described himself as a \ignoramus,\Albert Einstein's thinking was so complex that accomplished members of the scientific community still struggle to wrap their minds around the meaning and implications of his theories. Born in Germany in 1879, the frizzy-haired physicist conducted some of his most important - ２ -

大学英语一教案 research in Princeton, New Jersey, where he spent the later years of his life. Perhaps best known for his Theory of Relativity and his equation E=mc2, Einstein's work revolutionized the field of theoretical physics and made him a celebrity throughout the globe. As he presented Einstein at Medal Day exercises, Dr. Frederick Palmer, Jr. of The Franklin Institute's Committee on Science and the Arts said: \romance of his achievement has been such that mathematical physics has become popular with the public.\ 3.重点、难点及解决办法 Teaching Focus Note the differences between narration between exposition. Teaching Difficulties (1) Follow the way how the author presents the ideas: from general opinion to specific examples, to write a short paragraph. (2) Special attention should be paid to classroom interaction. Give students time to adapt to the new teaching mode in the university that are quite different from the one they were used to in the middle school. Teaching Suggestions Students conduct a series of reading, listening, speaking and writing practice to deepen their understanding of the points taught in class. More encouragement is needed and more guidance will be given to them in their extracurricular study. 4.时间分布 Time Allotment: 1st-2nd period: Unit 3 Text A New Words 3rd-4th period: Unit 3 Text A 5th -6th period: Unit 3 Exercises 7th-8th period: 新视野大学英语视听说教程 Unit 3 5.教学方法及手段 A combination of traditional teaching methods with the communicative approach will be adopted. 6.问题与练习 《全新版大学英语综合教程第一册》第三单元Text A后的习题。 1) Vocabulary 2) Comprehensive Exercises 7.参考书目 《全新版大学英语综合教程教师参考书第一册》 Other Useful English Learning Resources: Magazines: English Language Learning, College English, English Salon, English Weekly, The world of English, English Digest, Overseas English - ３ -