全新版大学英语第一册教师用课件Unit3PublicAttitudesTowardScience.ppt
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1、全新版大学英语第一册教师用全新版大学英语第一册教师用课件课件Unit3PublicAttitudesTowardScienceJourneyonthePaper BR_warm_JourneyonthePaper Now lets go on a journey through the most spectacular 100 years in the history of science and technology to have an overview of how our understanding of the world has grown from 1900 to today.B
2、efore ReadingGlobal ReadingDetailed ReadingAfter ReadingHome1900:The only way to view the Olympic Games in Paris is in person.News about the Games travels to America via(通过)telegraph and is printed in newspapers.Today:BR_warm_Journey-FCBFASTER,CLOSER,BETTER-TechnologyBefore ReadingGlobal ReadingDeta
3、iled ReadingAfter ReadingHomeMillions worldwide will watch the 2008 Beijing Olympics on television,transmitted instantaneously(瞬间地)by satellite.The news will spread as well by radio,newspaper,and the World Wide Web.1900:There is no good explanation for catastrophic events such as earthquakes.The Ear
4、th is thought to be a mere 50 million years old,and the evolution of species is hotly debated.ORIGINS-EarthandLifeScienceToday:BR_warm_Journey-ORIGINSBefore ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeThe plates(板 块)that make up the Earths crust(地 壳)move over time,causing earthquakes and v
5、olcanoes.The Earth is known to be 4,500 million years old.The genetic code of DNA,which drives evolution,is better understood every day.BrainstormingBR_warm-Brainstorming-Brainstorm some1.Brainstorm some of the scientific and technological inventions.e-mailmobile phone clone nuclear weapons laptop(笔
6、记本电脑)nanotechnology(纳米技术)genetic engineering Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBrainstormingBR_warm_Brainstorming-Discussion 2.Discussion Do all these inventions always change our lives for thebetter?Give examples to explain your opinion.Before ReadingGlobal ReadingDetaile
7、d ReadingAfter ReadingHomeBR_warm_Clone-new1.newsListen to the three pieces of news about clone.News 2 In April 1998News 1 In Feb.1997 News 3 In Feb.2003Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_warm_Clone-new-1 In February 1997 a group of geneticists(遗传学家)led by Ian Wilmut at
8、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).Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_warm_Clone-new-2 Doll
9、y,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
10、 13,proving that despite her unusual origins,she is able to breed normally and produce healthy offspring.Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_warm_Clone-new-3 Dolly,the sheep,the first mammal to be successfully cloned from an adult cell,has been put down after she was foun
11、d to have a lung disease,the Roslin Institute in Scotlands 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
12、.-Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_warm_Clone-Discussion 2.Discussion What is your attitude towards clone?Clone is a member of a group of organisms or plants produced non-sexually from one ancestor.The suggested ethical and practical arguments both for and against clon
13、ing:For:Close1.Animals from endangered species could be 2.cloned to prevent extinction.2.Cloning would be a good source for organ and bone marrow(骨髓)transplants.3.Sterile(不育的)couples will be able to have offspring who will have either the mothers or fathers genetic pattern.1.Technology is not well d
14、eveloped.It has a low fertility rate(出生率).In cloning Dolly,277 eggs were used,30 started to divide,nine induced pregnancy,and only one survived to term(临产).2.Clones may be treated as second-class citizens and the unknown psychosocial harm with impacts on the family and society.3.Loss of genetic vari
15、ation.CloseAgainst:Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_warm_Clone-Ads-11.Use attention-grabbing images and snappy(简洁)yet informative language in your ads.2.You might find models of such images and language in other public service advertisements,such as3.4.examples can be
16、found at www.tobaccofreekids.org and www.badvertising.org.)ones that discourage people from smoking.Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeDecide for yourself which side of the issue to support and then plan a public service advertisement campaign for or against cloning.3.Ads D
17、esigning(A few goodtheBR_warm_Clone-Ads-2smokingBefore ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_Background _Stephen Hawking-main StephenHawking 1.Brief Introduction to Stephen Hawking 2.Chronology of Stephen Hawking 3.Main Achievements of Stephen Hawking Before ReadingGlobal ReadingD
18、etailed ReadingAfter ReadingHomeBR_Background _Stephen Hawking-1.Stephen Hawking Stephen Hawking(1942):British theoretical physicist and mathematician Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHome 1.Brief Introduction to Stephen HawkingBR_Background _ 2.Chronology of Stephen Hawking-
19、12.Chronology of Stephen Hawking-1942 Born in-1958 Entered and became especially interested in thermodynamics(热力学),relativity theory,and quantum mechanics(量子力学).-1962 Received a bachelors degree in physics and then enrolled as a research student in general relativity at the .University of CambridgeO
20、xford,England.Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeOxford University BR_Background _ 2.Chronology of Stephen Hawking1-1 2.Chronology of Stephen Hawking OxfordUniversityBefore ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_Background _ 2.Chronology of Stephen Hawking
21、-1-2 2.Chronology of Stephen Hawking UniversityofCambridgeBefore ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_Background _ 2.Chronology of Stephen Hawking-22.Chronology of Stephen Hawking-1966 Earned his Ph.D.degree at the University of Cambridge.Stayed at the University of Cambridge to
22、do post-doctoral research.Diagnosed as having Amyotrophic Lateral Sclerosis(ALS)(肌萎缩性脊髓侧索硬化).“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,whi
23、ch are not that many.”Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_Background _ 2.Chronology of Stephen Hawking-32.Chronology of Stephen Hawking-1977 Became a professor of physics.-1979 Appointed Lucasian Professor of Mathematics at Cambridge,a post once held by Isaac Newton.This
24、is a picture of Stephen,Isaac New-ton and Albert Einstein.Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_Background _ 2.Chronology of Stephen Hawking-3.Main Achievementssingularity(A point in space-time at which the space-time curvature(曲率)becomes infinite.)(A region of space-time f
25、rom which nothing,not even light,can escape.Nothing can escape because gravity is so strong.)black hole A Brief History of Time3.Main Achievements(One of his books to make his work accessible to the public.)Before ReadingGlobal ReadingDetailed ReadingAfter ReadingHomeBR_Background _ 2.AlbertEinstein
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