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1、Public attitude toward science,Introduction-Science,ScienceThe observation, identification, description, experimental investigation, and theoretical explanation of phenomena. 科学：对现象进行观察、认知、描述、实验性的研究及理论上的解释systematicstudyof anything that can be examined, tested, and verified 科学研究,Brainstorming :Brain
2、storm some of the scientific and technological inventions.,Scientific and technological inventions,E-mail,ComputerLaptop,Mobile phone,cloning,Nuclear power,Genetic engineering,Automobiles,Television,Electricity,In what way do scientific discoveries change our lives for the better or for the worse? T
3、ake one invention for example.,changes for the better?,changes for the worse?,Quick and easy access to information, education, entertainment, etc.,Expose children to violence,Deprive families of quality time,Deprive people of the will to communicate with each other,Television,changes for the better?
4、,changes for the worse?,Clone replacement organs for transplant patients,Loss of genetic variation,Clone human being:,Clone may be treated as second class citizens.Hitler or other war criminals or evil people?,Cloning,Animals of endangered species could be prevented from extinction.,Introduction,The
5、 same scientific and technological discovery can bring us both good things and bad things.It is up to us to make changes head towards changing our lives for the better.People must understand that science is inherently neither a potential for good nor for evil. It is a potential to be harnessed by ma
6、n to do his bidding. - Glenn T. Seaborq,Stephen Hawking (1942 ):,British theoretical physicist and mathematician,“My goal is simple. It is complete understanding of the universe, why it is as it is and why it exists at all.”,- 1958 Entered Oxford University and became especially interested in thermo
7、dynamics热力学, relativity theory, and quantum mechanics量子力学- 1962 received a bachelors degree in physics and 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 p
8、ost-doctoral research. - 1977 Became a professor of physics. - 1979 Appointed Lucasian Professor of Mathematics at Cambridge, a post once held by Isaac Newton.,In 1966, he was diagnosed as having Amyotrophic Lateral Sclerosis (ALS) (肌萎缩性脊髓侧索硬化), which erodes muscle control. He has to use a wheelchai
9、r and speaks through a computer and voice synthesizer. What impress us most is Hawkings optimism. -“Although there was a cloud hanging over my future, I found, to my great surprise, that I was enjoying life more than before.”,More information about Hawking,Singularity (奇点),(Astrophysics) A point in
10、space-time at which the space-time curvature（曲率）becomes Infinite/at which gravitational forces cause matter to have infinite density and infinitesimal volume, and space and time to become infinitely distorted.【天体物理学】 奇点：时空中的一点，在该点重力使物质的密度无穷大、体积无穷小，空间和时间被极度的扭曲)大星燃烧耗尽会继续坍缩直至达到具有无限密度的奇点，这个奇点，引力场特别强大使得光
11、线不能从围绕它的区域逃逸，而被引力场拉回去。这就叫做黑洞 .,Main Achievements,More information about Hawking,black hole (黑洞),(A region of space-time from which nothing, not even light, can escape. Nothing can escape because gravity is so strong.)任何物质一旦进入黑洞之后将会不能逃出而最终消失黑洞不是完全黑的。在宇宙意义的微观尺度上，粒子和辐射可以从黑洞漏出来。这就是著名的霍金辐射。,Main Achievem
12、ents,A Brief History of Time (时间简史),(One of his books to make his work accessible to the public.) It guides us to the supreme questions of the nature of physics, time and the universe: Was there a beginning of time? Will there be an end? Is the universe infinite?,Global reading,Reading.The main idea
13、:To ensure the survival of human civilization, measures must be taken to help the public understand science,Global Reading,Text Organization. Page.69Expository WritingPart One: Present a viewParas 1-3To make informed decisions about change, the public needs a basic understanding of science.Part Two:
14、 Raises and answers a relevant questionParas 4-6What can be done to educate the public about science.(a mini-exposition) Part Three: Para 7 The conclusion,Language Points,attitude: manner or way one thinks about, behaves toward, or feels toward sb. or sth. (usu. followed by to/ towards)The boy has a
15、 bad attitude towards his schoolwork. 他儿子对待工作的态度让他很生气.His sons attitude to work made him angry.,P.1Likely: describes something that will probably happen or is expected:1) probable (When functioning as an a., the word is often used in the following patterns: it is likely that., be likely to do sth.)I
16、t is likely that my roommate will win the first-class scholarship. An earthquake is likely to strike the area in a year or two. Economists say that the quick economic growth is likely to continue throughout the 2010s. 2) probably (When used as an ad., the word is often preceded by most, more than, or very. You dont use it as an ad. on its own.)It is reported that another sandstorm will very likely come in the next 24 hours. We will most likely stay home during the Spring Festival. cf. probably, possible,
