大学英语视听说教程第二单元.ppt

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1、Audio Task 2 Checking the Facts 1.Most middle-aged adults have little Internet experience.2.Twenty-four volunteers with Internet experience formed the two groups.3.The 24 volunteers were between 55 and 76 years old.Listen to the audio clip again and decide whether the following statements are True(T

2、)or False(F).ScriptScriptFTFSearching the Internet may help middle-aged and older adults keep their memories sharp,according to a recent study.Researchers at the University of California,Los Angeles,recorded the brain activity of people searching the Web and found that those with experience of the I

3、nternet used more of their brain during their searches.This suggests that simply searching the Internet has the effect of training the brain and keeping it active and healthy.Many studies have found that challenging mental activities such as puzzles can help preserve brain function,but few have look

4、ed at what role the Internet might play.According to Dr Gary Small,a UCLA expert on ageing,this is the first time anyone has simulated an Internet search task while scanning the brain.Dr Smalls team studied 24 normal volunteers between the ages of 55 and 76.Half were experienced at searching the Int

5、ernet and the other half had no Web experience.Both groups were asked to do Internet searches and book reading tasks while their brain activity was monitored.The team found that people who are familiar with the Internet can engage at a much deeper level of brain activity.ScriptVideo Task 3 Checking

6、Your ComprehensionWatch this part of the video clip again,and answer the following questions.ScriptScript1.What sort of decisions do people make when searching online?Answer:“Should I go for this site or the other one?”2.What is the major focus of Dr.Smalls new book?Answer:The digital divide.3.Who a

7、re the digital natives,young or older people?Answer:Young people.4.What should young people do to bridge the brain gap?Answer:Improve their face-to-face human contact skills.5.What does Dr.Small encourage seniors to do?Answer:To enjoy the technology.ScriptScriptAnchor:Did you know that the internet

8、could be a good exercise for the brain?A new studyfrom UCLA finds that,when middle age and senior age adults perform internetsearches,it activates many different areas of the brain,including those involvedwith memory,decision making and reasoning.Joining us today is the lead author ofa study looking

9、 at this Dr.Gary Smalls Small and hes also the author of thebook iBrain,Surviving the technological alteration of the modern mind.Welcome Dr.Smalls Small.Gary Small:Thank you!Its great to be here Anchor:So,in my parents house,I have to tell you how it works.My mom and dad mightsit up and at some poi

10、nt theres a discussion hey you are on the internet,quitsurfing internet.Can I now tell my parents,its OK for dad to surf the internet,its good for his brain?Gary Small:Well,we dont see any harm in it,and this first study to see what the brain lookslike when it searches on the internet showed very dr

11、amatic results.Comparedto just reading a book text page,there was much greater activation andparticularly in the front part of the brain that controls complex reasoning anddecision making.Video Task 2 Checking Your Comprehension .Anchor:Thats interesting.So its kind of akin to crossword puzzles,soun

12、ds likeGary Small:Well,its its probably different from crossword puzzles but similar.One thingabout when were searching on the web is were constantly deciding“shouldyou go for this site or that other site?”,whereas if were just reading a bookpage,the decision is“should I turn the page when I finish

13、the last sentence?”And theres something about that decision making process,something aboutthe interaction,that is activating a much greater extent of brain neural circuits.Anchor:Thats interesting.Now what about ages where youre looking at these kind of I saw your study was relatively small,it seeme

14、d to be 24 people on the stuffthat Ive read.Uh,what ages are we looking at and when does this becomepotentially1 neural preventive for people?Gary Small:We dont know whether its neural preventive and we dont know about the ageeffects,but one thing I focus on in iBrain,in my new book,is the digitaldi

15、vide between young people,digital natives who are getting this technology24/7 born into it,and the older generation,the digital native,the digitalimmigrants who come to it more reluctantly later in life,and how do we bridgethat so-called brain gap by upgrading the text skills of older people and hel

16、pingyounger people with their face-to-face human contact skills?Anchor:Its fascinating.We just have time for one last question,kind of comment,but Ivebeen fascinated how able people in their 60s and 70s are really in incorporatingthis new technology into their daily lives in internet searching etc.I

17、ts reallybeen amazing to me to see how quickly thats happened.Gary Small:Well I encourage boomers and seniors to get involved in the technology,to havefun with it and enjoy it,and its a great way to reach out to people who are notnearby.The communication ability is(Absolutely)really spectacular.Anch

18、or:Absolutely.Sorry we are out of time,but thanks so much for coming to see us Dr.Smalls Small.Loved to hear what you had to say.Gary Small:Thank you.1.Mark Bauerlein argues that the Internet makes people stupid.2.The author is a professor of American culture.3.American youth has more exposure to th

19、e liberal arts than ever before.4.In Marks 2002 research,young people formed the most active reading group.5.The author urges his students to read more books in their spare time.Video Task 2 Checking Your ComprehensionWatch this part of the video clip.Identify the incorrect information in the follow

20、ing statements,and make corrections where necessary.TFFFTScriptAnchor:And finally,the dumbest generation.And if you are watching this webcast,thatapparently means you.At least thats a theory of a professor of English at Emory University whoswritten a book which basically argues that the internet is

21、making people stupid.Mark Bauerlein:Im Mark Bauerlein,professor of English at Emory University.The book hasa provocative title.Its The Dumbest Generation:How The Digital Age Stupefies Young Americans andJeopardizes Our Future.In Recent years though,I have begun to look at youth culture,youth knowled

22、ge,youth academic achievements,and what has come up,more and more,is that things dont look good.Young people today enjoy more and more digital connections,more screen time than ever before and one of the effects of that is that they are steadily disengaging from the traditional contents uh the liber

23、al arts.One of the things we measured was how much people read literature,and how much they read books in general.And the first time we did the study was in 1982,and at that time,young people formed the most active reading group.When we did it again in 2002,they were the least active.Only about half

24、 of them ever read a book on their own.If its not assigned for school,if its notassigned in the workplace,they simply dont care.The internet is extraordinary.It is a miraculoustool for knowledge and information.But the fact is that is not what the internet means to the averagesixteen-year-old.What t

25、he internet does is provide a more intense form of contact with othersixteen-year-olds.You know,I do often tell my students,read more books.Please,read more books in your leisure time,unplug for just an hour or two per day.I urge them,and they,they generally just laugh at me.Some of them may feel th

26、at I come down on them too hard,but they know deep down that this isright.Home Listening One of the most negative aspects of the impact of the Internet on our daily life isthat it 1)_ the social behaviour,habits and abilities of people.2)_ childrenare often badly influenced by the Internet.Today,whe

27、n nearly every household has a computer and 3)_to the Internet,it is abundantly clear that children also become acquainted with computers and the Internet.They should learn how to use it,of course.The world of the World Wide Web and virtual space is going to become more important with every year and

28、 everybody should be able to use this tool even children.They should know how to get 4)_,how they can buy something on the web,where they can meet people online.They should be able to use the Internet because,if they are not able to,they are going to have great 5)_ with getting on in life later on.W

29、hat worries us is that children will be 6)_at using the Internet but not at how to live in the real world anymore.The Internet shouldnt be considered 7)_ as a babysitter or friend for children.It is important that children learn how to use the Internet but it is also very important that they learn t

30、o have the right 8)_towards it.The Internet will never replace the real world.Therefore it is important that children see that it is a great tool if they know how to handle it,but that 9)_ _.Its the parents duty to tell their children so.Parents should not just put their children in front of a computer and say“Oh well,thats the Internet,go on,have some fun and be quiet.”10)_.altersEspeciallyinformationdifficultiesexpertsuitableattitudeit should not be a replacement The Internet was not made for children and so it should not be used as a babysitter.for real friends,for a real life_access