大学体验英语英语视听说教程 .pptx

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1、UNIT 4Technology:A Blessing or a Curse?第1页/共71页Most of the important things in the world have beenaccomplished by people who have kept on trying when thereseemed to be no hope at all.DaleCarnegie第2页/共71页Background InformationUnit OverviewLesson 1Lesson 2Supplementary ReadingHome listeningAgenda第3页/共

2、71页 In this highly developed era,people are making use of technologies to improve their standard of living.Many problems are solved with the advent of such technology as cloning,surrogacy and gene therapy.These biotechnologies have brought more options that people can easily access.Simultaneously,ho

3、wever,they bring about some ethical issues on how these technologies should be used fairly without infringing on peoples rights and how they should be regulated to make sure they are not used illegally and exploited.Students will get to know the pros and cons of biotechnology through reading,listeni

4、ng and viewing.Various activities will inspire the students to talk about the impact of biotechnology on peoples life by using the words and expressions in this unit.Unit Overview第4页/共71页Background Information The fast development of biotechnology has brought in more options for people to improve th

5、eir lives.One of the scientific achievements of biotechnology is that people may have access to their genetic information.If were going to use genetic knowledge,should we use it to improve ourselves?Do you want to make betterbabies?Do you want to make taller people?Faster people?Stronger people?Peop

6、le with better memory?Thats not going to happen right away,but it will.This revolution in front of us is as personal as it gets,concerning our gender,our race,our family.But how much do you really want to know about your future health?One of the great ironies of the genetic revolution is that it tea

7、ches us about our flaws,our limits.We now know thats whats going to hurt and thats what you are at risk of.第5页/共71页Background Information Another question is:Whatever happened to cloning,thats not really an issue,because we dont want to copy;we want to improve.However,if we can make people better th

8、an what nature designed,who gets to buy designer genes?This may lead to the most serious ethical debate that society will face:Are we going to try and do that?Will we set any limits at all?Will the market determine it?Who will have access?Will the poor be able to access this technology?Will the thir

9、d world have it if the first world has it too?This may become a battleground.In this unit,students will have a lot of opportunities to think independently and exchange ideas with each other on the mostcontroversial issues of biomedical field in recent years.第6页/共71页Lesson OneLead-inAudio studioVideo

10、 studioSpeaking workshopProject bulletin 第7页/共71页Lead-inTask 1Task 2Task 3第8页/共71页Task 1 Describing the PictureDescribe the pictures first and then discuss which one you like better and why.What do people in the picture have in their hands?What are the scientific approaches?What should we do to be o

11、pen to new scientific findings?第9页/共71页Task 2 Reflecting on the Reading 1.What does the overuse of the Internet lead to?Read through the Read through the Supplementary Reading Supplementary Reading passage on page 130,and passage on page 130,and answer the following questions.answer the following qu

12、estions.Answer:Human life was highly restricted due to the unavailability of technological application.Answer:An over-exposure to it leads to Internet addiction.2.What was the life like in the days when there were no computers and no modern means of transport?第10页/共71页3.What are the unethical practi

13、ces bred by the Internet?Answer:The Internet has bred many unethical practices like hacking,spamming and phishing.Internet crime is on the rise.4.What tends to be left out with the use of modern means of communication such as online messengers,emails and cell phones?Answer:The tendency of taking pai

14、ns to reach the loved ones has vanished.5.What can we infer from the statement“Everything has become so easily available due to the advancing technology that it has lost its value”?Answer:People tend to cherish the things less when they come too easily.第11页/共71页Task 3 Expanding Your Vocabulary A.dis

15、like of or opposition to a plan,an idea,etc.B.not important or serious;not worth consideringC.to find or discover sb./sth.D.making you feel admirationE.physically strong,fit and activeF.having little experience of the worldReadthroughthewordsintheleft-handcolumn,andmatcheachofthemwithReadthroughthew

16、ordsintheleft-handcolumn,andmatcheachofthemwiththeappropriatemeaningintheright-handcolumn.theappropriatemeaningintheright-handcolumn.1.identify2.impressive3.innocent4.athletic5.resistance6.trivial第12页/共71页Audio StudioWord BankWord Bank1.overtake 追上，赶上追上，赶上2.implant 嵌入，移植嵌入，移植3.boost 推进推进4.intellectu

17、al 知识分子知识分子5.innovation 改革，创新改革，创新Task 1Task 2第13页/共71页Audio Task 1 Identifying the Gist.1.What is the function of the little robots implanted in our brain according to Dr.Kurzweil?A)They give us more powerful memories.B)They make us become healthier than we were.C)They could overtake the power of t

18、he human brain.2.How many times more technical progress will next half century see according to Dr.Kurzweils prediction?A)twiceB)18 timesC)32 timesListentotheaudioclip,andchoosetherightanswerstotheListentotheaudioclip,andchoosetherightanswerstothequestions.questions.第14页/共71页Audio Task 2 Checking th

19、e Facts 1.A leading US scientist has predicted that computers will be more intelligent than humans by 2029.2.Dr.Kurzweil is an innovator in various fields of computing.3.Things we see in science fiction movies will never happen in reality.Listentotheaudioclipagainandfillintheblanksaccordingtowhatyou

20、haveheard.Repeatthesentencesafteryouhavecompletedthem.ScriptScriptFTF第15页/共71页A leading US scientist has predicted that computers will be as intelligent as humans by 2029.Futurologist Dr Ray Kurzweil told the American Association for the Advancement of Science that in the near future,machine intelli

21、gence will overtake the power of the human brain.He said that within two decades computers will be able to think quicker than humans.Dr Kurzweil painted a picture of us having tiny robots called nanobots implanted in our brain to boost our intelligence and health.He told reporters that these microsc

22、opic nanobots would work with our brains to make us think faster and give us more powerful memories.Kurzweil explained that we are already“a human machine civilization”and that the upcoming technology“will be a further extension of that.”Dr Kurzweil was one of 18 top intellectuals asked by the US Na

23、tional Academy of Engineering to identify our greatest technological challenges.Other experts included Google founder Larry Page and the human genome pioneer Dr Craig Venter.Kurzweil has a very impressive background in science and innovation.He was an innovator in various fields of computing,includi

24、ng the technology behind CDs.He also pioneered automatic speech recognition by machines.He predicts the pace of new inventions will increase greatly from now,saying:“the next half century will see 32 times more technical progress than the past half century.”This means scenes from science fiction mov

25、ies,like Blade Runner,The Terminator and I,Robot,will become more and more a part of our everyday lives.Script第16页/共71页Video StudioWord BankWord Bank1.override 1.override 否决，推翻否决，推翻否决，推翻否决，推翻2.tinker 2.tinker 小修补小修补小修补小修补3.specify 3.specify 具体说明，明确规定具体说明，明确规定具体说明，明确规定具体说明，明确规定4.geneticist 4.genetici

26、st 遗传学家遗传学家遗传学家遗传学家5.hypocrite 5.hypocrite 伪君子，虚伪的人伪君子，虚伪的人伪君子，虚伪的人伪君子，虚伪的人6.theoretically 6.theoretically 理论上理论上理论上理论上7.catalogue 7.catalogue 目录目录目录目录8.modification 8.modification 修改，改进修改，改进修改，改进修改，改进9.outweigh 9.outweigh 重于，超过重于，超过重于，超过重于，超过10.in-vitro fertilization 10.in-vitro fertilization 体外授精体

27、外授精体外授精体外授精Task 1Task 2第17页/共71页Video Task 1 Matching&Predicting1.Some geneticists believe parents will be able to select for genes that _ intelligence,memory,even talents like playing the piano.2.Now everybody is pouring over it with computers and trying to _ what it all means.3.And we dont really

28、want to _ them until we are very convinced that the benefits outweigh the risks.4.And so the children in rich really might be beautiful and the children of ordinary people wont _ _ the same sorts of expensive technologies.5.Will that happen in twenty five years?It all _ how people decide to handle t

29、he technology.Completethefollowingstatementswiththephrasesgivenbelow.PredictwhatCompletethefollowingstatementswiththephrasesgivenbelow.Predictwhatwillbetalkedaboutinthevideo.Thencheckyouranswersafterwatchingthewillbetalkedaboutinthevideo.Thencheckyouranswersafterwatchingthevideoclip.videoclip.mess w

30、ith have access to depends on figure out help withhelp withfigure outmess withhave access todepends on第18页/共71页Video Task 2 Bridging the GapWatchthispartofthevideoclipandfillintheblanks.Imagine being able to override Mother Nature and hand-pick the physical appearance and intellectual traits of your

31、 unborn child.Well,_ _,what may seem far-fetched now could be the norm for parents 25 years down the road.What seems like _ in the movie Gattaca is already happening.Through in-vitro fertilization,parents can actually choose to have a girl or a boy.In twenty five years,some geneticists believe,paren

32、ts will be able to select for genes that help with intelligence,memory,even talents like playing the piano.“The question is whether or not people want to use the technology _ _.”We posed the question at a gathering of pregnant moms and found _ _.But here is the thing,when we asked the mummies that i

33、f it would be okay to change their babys genetics to _ _,the answers changed.And that ability for a parent to shape their childs health may be the biggest event 25 years from now.Theoretically science could provide genes to make babies super resistant to diseases.Hereshow,a few years back,scientists

34、_ _ the human genome,its a lot like a giant codebook,a catalogue of the genes in the human body.thanks to modernscience,science fictionfor thatpurposea lot ofresistanceavoid adiseasemappedout第19页/共71页Video Task 2 Checking Your ComprehensionWatchthispartofthevideoclipandanswerthefollowingquestions.1.

35、What physical and intellectual traits can expectant parents choose?Answer:Parents could choose the babys hair color,eye color,brain power,how athletic theyll be.2.Do pregnant moms agree to change their babys genetics to avoid a disease?Answer:Yes,they do.3.What potential ethical concerns will trait

36、selection bring about?Answer:Our view of children,our view of parenthood,our view of our relationships with each other will tend to change.4.Who is able to afford the technology of trait selection?Answer:Only rich people will be able to afford it.5.Do you think it is advisable for parents to choose

37、physical and intellectual traits for their babies?Answer:Open.ScriptScript第20页/共71页ScriptScript Imagine being able to override Mother Nature and hand-pick the physical appearance andintellectual traits of your unborn child.Well,thanks to modern science,what may seem far-fetched now could be the norm

38、 for parents twenty five years down the road.They are so lovable,so innocent,ten little fingers,ten tiny toes,to every parents eye,pureperfection.But what if you could tinker with perfection,choose your babys hair color,eye color,brain power,how athletic theyll be.“You have specified hazel eyes,dark

39、 hair and fair skin”What seems like science fiction in the movie Gattaca is already happening.Through in-vitrofertilization,parents can actually choose to have a girl or a boy.“We can already look for the genes that,erh,influence all sorts of trivial traits,like our eye color or hair color.”In twent

40、y five years,some geneticists believe,parents will be able to select for genes that help with intelligence,memory,even talents like playing the piano.“The question is whether or not people want to use the technology for that purpose.”We posed the question at a gathering of pregnant moms and found a

41、lot of resistance.“I think once you start choosing,you know,how your baby should look like,and what it should be or what the sex it should be.You take the excitement out of the unexpected”But here is the thing,when we asked the mummies that if it would be okay to change their babys genetics to avoid

42、 a disease,the answers changed.Video Task 第21页/共71页ScriptScript “Ill say Yes.But again Im being a hypocrite,but I think health is the most important part.”And that ability for a parent to shape their childs health may be the biggest event 25 years from now.Theoretically science could provide genes t

43、o make babies super resistant to diseases.Heres how,a few years back,scientists mapped out the human genome.Its a lot like a giant codebook,a catalogue of the genes in the human body.“We have all the information,and now everybody is pouring over it with computers and trying tofigure out what it all

44、means.”No reason except for ethical concerns that genetic modification could change everything.“Our view of children,our view of parenthood,our view of our relationships with each other,and therefore our view of what it,what it means to be human.And we dont really want to mess with them,I think,unti

45、l we are very very convinced that the benefits outweigh the risks.”And who will get the benefit?In twenty five years,many worry only rich Americans will be able to afford genetic tinkering.“There is going to be a growing gap between the haves and have-nots.And so the children in rich really might be

46、 beautiful and the children of ordinary people wont have access to the same sorts of expensive technologies.”Will that happen in twenty five years?It all depends on how people decide to handle the technology.Video Task 第22页/共71页Speaking WorkshopExpressions&Structures to Expressions&Structures to Use

47、Use1 trait selection/genetic tinkering2 boost the intelligence and health3 thanks to modern science4 vary from person to person5 the benefits outweigh the risks6 work wonders7 artificial intelligence8 deprive sb of sth9 figure out10 have access toTask 1Task 2第23页/共71页Speaking Task 1 SummarizingDiscu

48、sswithyourpeersandcompletethefollowingtipswiththeinformationDiscusswithyourpeersandcompletethefollowingtipswiththeinformationyouhavelearnedinthevideoclip.Thenprepareanoralpresentationwithyouhavelearnedinthevideoclip.Thenprepareanoralpresentationwiththehelpofthetips.thehelpofthetips.Tips:physical app

49、earance intellectual traits science fiction to avoid potential diseases is a controversial practice peoples opinions on vary raise peoples debate over reach an agreement on have access to 第24页/共71页Speaking Task 1 SummarizingTips:physical appearance intellectual traits science fiction to avoid potent

50、ial diseases is a controversial practice peoples opinions on vary raise peoples debate over reach an agreement on have access to 第25页/共71页Speaking Task 1 SummarizingSummary:Twenty five year from now,parents would be able to select physical appearance and intellectual traits of their unborn babies.Wh