新视野大学英语第四册第四课ppt课件U04 B.ppt

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1、New Horizon College English,Unit 4 Section B,The Information Superhighway,新视野,Unit 4 Section B Directory,Recognizing Paragraph Patterns(I),Comprehension GuideLanguage Points,Blank-filling with New WordsReplacement with Words or Expressions,DictationMultiple Choice,Reading Skills,Text B,Exercises,Tes

2、t Yourself,Practice,In our New Horizon College English series,we have been analyzing every Passage A from Unit 1,Book 1 up to now.This kind of practice has three purposes:ing to a better understanding of the main ideas of the reading passages;2.understanding text structure;3.helping us construct wel

3、l-organized paragraphs or short compositions.,.Reading Skills:Recognizing Paragraph Patterns(I),Through Text Structure Analysis,we have become familiar with quite a few basic structures of a text such as Cause and Effect,Comparison and Contrast,Time Sequence,a Set of Sequential Actions,a General Poi

4、nt Supported by Details/Examples/a List of Things,a Problem-Solution Pattern,etc.,Back,.Reading Skills:Recognizing Paragraph Patterns(I),Back,Paragraphs are important units of thought in the essays and stories you have to read.And figuring out the main idea in a paragraph is your basic challenge as

5、a reader.A helpful clue to it often lies in the way a writer arranges information in a paragraph.,.Reading Skills:Recognizing Paragraph Patterns(I),Paragraph information often appears in patterns that can be recognized or analyzed.If you know some typical paragraph patterns in which information may

6、appear,you may find it easier to understand what you read.Of course,no writer follows any patterns rigidly.Usually,in an essay or story,many different patterns appear.In a single paragraph,in fact,they often overlap and combine.But being aware of typical patterns in a reading selection can help you

7、follow a writers thoughts and ideas.,Back,.Reading Skills:Recognizing Paragraph Patterns(I),Here are two more examples from passage A:Example 1 All these developing regions see advanced communications as a way to leap over whole stages of economic development.Widespread access to information technol

8、ogies,for example,promises to condense the time required to change from labor-intensive assembly work to industries that involve engineering,marketing,and design.Modern communications“will give countries like China and Vietnam a huge advantage over countries stuck with old technology”.(Para.2,Passag

9、e A,Unit 4),Back,.Reading Skills:Recognizing Paragraph Patterns(I),What is the main idea of the paragraph?Advanced communications are seen as a way to leap over whole stages of economic development.Why?It is because information technologies shorten the time required to change from labor-intensive as

10、sembly work to engineering,marketing and design industries.And what is more,modern communications“will give countries like China and Vietnam a huge advantage over countries stuck with old technology”.What is the structure of the paragraph?It is a general statement supported by reasons.,Back,.Reading

11、 Skills:Recognizing Paragraph Patterns(I),Example 2 Wireless demand and usage have also exploded across the entire width and breadth of Latin America.For wireless phone service providers,nowhere is business better than in Latin Americahaving an operation there is like having an endless pile of money

12、 at your disposal.BellSouth Corporation,with operations in four wireless markets,estimates its annual revenue per average customer at about$2,000 as compared to$860 in the United States.Thats partly because Latin American customers talk two to four times as long on the phone as people in North Ameri

13、ca.(Para.8,Passage A,Unit 4),Back,.Reading Skills:Recognizing Paragraph Patterns(I),What is the main idea of the paragraph?Wireless demand and usage have exploded across the entire Latin America.What are the reasons to support this main idea?Wireless phone service providers are making a lot of money

14、 out of information technologies.,Back,.Reading Skills:Recognizing Paragraph Patterns(I),What is the example given to support the main idea?BellSouth Corporation estimates its annual revenue per average customer at about$2,000 as compared to$860 in the United States.What is the structure of the para

15、graph?It is a general statement supported by details of reasons and an example.,Back,.Reading Skills:Recognizing Paragraph Patterns(I),1.Your school has no professors of Japanese,a language you want to learn before visiting Japan during the coming summer holiday.Dont worry.Just sign up for the langu

16、age course offered by a school in another district or city,have the latest edition of the course teaching materials sent to your computer,and attend by video.If you need extra help with a translation assignment or your pronunciation,a tutor can give you feedback via your computer.(Para.2,Passage B,U

17、nit 4),A.What is the problem identified?,B.What are the solutions mentioned?,Your school has no professors of Japanese and you want to learn the language.,Just sign up for a language course offered by a school in other places and the materials and instructions can be sent to you via your computer.,R

18、eading Skills:Practice,XV.Read the following paragraphs from Passage B and answer the questions.,Back,C.What is the structure of the paragraph?,A problem-solution pattern.,2.Poor people must also have access to high technology,says another expert.“Such access will be crucial to obtaining a high-qual

19、ity education and getting a good job.So many transactions and exchanges are going to be made through this medium banking,shopping,communication,and information that those who have to rely on the postman to send their correspondence risk really falling behind,”he says.(Para.12,Passage B,Unit 4),Readi

20、ng Skills:Practice,B.In what way does the author support the main idea?,C.What is the structure of the paragraph?,A.What is the main idea of the paragraph?,Poor people must also have access to high technology.,The author offers reasons such as the access to high technology is crucial to obtaining a

21、high-quality education,getting a good job,and also important to banking,shopping,communication,and information.,The paragraph starts with a general statement,which is supported by reasons.,Text B,New Words,Question Previewing,Passage Reading,True or False,crucialpostmancorrespond-encediagramspokesma

22、nportioninsureterminaltypewriterlibrarian,beastguitarjazzcassettereadingeditiontutorfeedbacksemicon-ductortransmitcarrierlaser,.Text B:Comprehension Guide&Language Points,Back,henceformataudiodosebladerobotkeyboardcorrespond-entvacuumsyntheticuniverse,Phrases andExpressionssign upbroadly speakingref

23、er tobe compared tocome up within the hands ofhave access torely onfall behinddevote to,Proper NamesBeauty and the BeastAl GoreClintonJeffrey Chesterthe Center for Media EducationWashington D.C.Berkeley,CaliforniaCommunity Memory ProjectSanta Monica,Text B:Comprehension Guide&Language Points,Q:1.If

24、you sign up for a language course,a tutor will give you feedback by a computer.,Q:2.People have talked a lot about the information superhighway,and they share the same opinion about what the information superhighway is.,Q:3.It is technological advances that make easier the storage and rapid transmis

25、sion of information into homes and offices.,Back,Text B:Comprehension Guide&Language Points,Q:4.The information superhighway has got its name because the greatly increased volume and speed of data transmission is much like a highway with many lanes which allow more cars to move at a faster speed tha

26、n a two-lane highway.,Q:5.The Internet and information superhighway will make routine the electronic transmission of data in the same formats.,Back,Text B:Comprehension Guide&Language Points,Q:6.Some people are afraid that only rich people will gain the profits brought by the data highway.,Q:7.To ge

27、t high-quality education and a good job,it is necessary for poor people to have the right to acquire and use high technology.,Q:8.While they denied they were avoiding the poor,the four regional phone companies were more concerned with making profits than providing access to the poor.,Back,The Inform

28、ation SuperhighwayPara.1 Are you too tired to go to the video store but you want to see the movie Beauty and the Beast at home?Want to listen to your favorite guitar players latest jazz cassette?Need some new reading material,like a magazine or book?No problem.Just sit down in front of your home com

29、puter or TV and enter what you want,when you want it,from an electronic catalogue containing thousands of titles.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Para.2 Your school has no professors of Japanese,a language you want to learn before visiting Japan during the coming summer holi

30、day.Dont worry.Just sign up for the language course offered by a school in another district or city,have the latest edition of the course teaching materials sent to your computer,and attend by video.If you need extra help with a translation assignment or your pronunciation,a tutor can give you feedb

31、ack via your computer.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Question 1,请选择,Para.3 Welcome to the information superhighway.Para.4 While nearly everyone has heard of the information superhighway,even experts differ on exactly what the term means and what the future it promises will

32、 look like.Broadly speaking,however,the superhighway refers to the union of todays broadcasting,cable,video,telephone,and computer and semiconductor industries into one large all-connected industry.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Question 2,请选择,Para.5 Directing the union ar

33、e technological advances that have made it easier to store and rapidly transmit information into homes and offices.Fiber-optic cable,for examplemade up of hair-thin glass fibersis a tremendously efficient carrier of information.Lasers shooting light through glass fiber can transmit 250,000 times as

34、much data as a standard telephone wire,or tens of thousands of paragraphs such as this one every second.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Question 3,请选择,Para.6 The greatly increased volume and speed of data transmission that these technologies permit can be compared to the wa

35、y in which a highway with many lanes allows more cars to move at faster speeds than a two-lane highwayhence,the information superhighway.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Question 4,请选择,Para.7 The closest thing to an information superhighway today is the Internet,the system o

36、f linked computer networks that allows up to 25 million people in 135 countries to exchange information.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Para.8 But while the Internet primarily moves words,the information superhighway will soon make routine the electronic transmission of dat

37、a in other formats,such as audio files and images.That means,for example,that a doctor in Europe who is particularly learned will be able to treat patients in America after viewing their records via computer,deciding the correct dose of medicine to give the patient,or perhaps even remotely controlli

38、ng a blade wielding robot during surgery.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Question 5,请选择,Para.9“Sending a segment of video mail down the hall or across the country will be easier than typing out a message on a keyboard,”predicts one correspondent who specializes in technolog

39、y.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Para.10 The world is on“the eve of a new era”,says the former United States Vice President Al Gore,the Clinton administrations leading high-technology advocate.Gore wants the federal government to play the leading role in shaping the superh

40、ighway.However,in an era of smaller budgets,the United States government is unlikely to come up with the money needed during the next 20 years to construct the superhighway.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Para.11 That leaves private industrycomputer,phone,and cable companie

41、sto move into the vacuum left by the governments absence.And while these industries are pioneering the most exciting new technologies,some critics fear that profit-minded companies will only develop services for the wealthy.“If left in the hands of private enterprise,the data highway could become li

42、ttle more than a synthetic universe for the rich,”worries Jeffrey Chester,president of the Center for Media Education in Washington,D.C.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Question 6,请选择,Para.12 Poor people must also have access to high technology,says another expert.“Such acce

43、ss will be crucial to obtaining a high-quality education and getting a good job.So many transactions and exchanges are going to be made through this mediumbanking,shopping,communication,and informationthat those who have to rely on the postman to send their correspondence risk really falling behind,

44、”he says.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Question 7,请选择,Para.13 Some experts were alarmed earlier this year when diagrams showed that four regional phone companies who are building components of the superhighway were only connecting wealthy communities.,.Text B:Comprehensio

45、n Guide&Language Points,Back,下一页,上一页,请选择,Question 8,Para.14 The companies denied they were avoiding the poor,but conceded that the wealthy would likely be the first to benefit.“We had to start building some place,”says a spokesman for one of the companies,“and that was in areas where there are custo

46、mers we believe will buy the service.This is a business.”,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Para.15 Advocates for the poor want the companies building the data highway to devote a portion of their profits to insuring universal access.Advocates of universal access have already

47、launched a number of projects of their own.In Berkeley,California,the citys Community Memory Project has placed computer terminals in public buildings and subway stations,where a message can be sent for 25 cents.In Santa Monica,California,computers have replaced typewriters in all public libraries,a

48、nd anyone,not just librarians,can send correspondence via computer.,.Text B:Comprehension Guide&Language Points,Back,下一页,上一页,Para.16 Many challenges face us as we move closer to the reality of the information superhighway.In order for it to be of value to most people,individuals need to become infor

49、med about what is possible and how being connected will be of benefit.The possibilities are endless but in order for the information superhighway to become a reality,some concrete steps need to be taken to get the process started.,.Text B:Comprehension Guide&Language Points,Back,上一页,Q:1._ If you sig

50、n up for a language course,a tutor will give you feedback by a computer.,Refer to Para.2,Directions:Read the following statements carefully,and decide whether they are true(T)or false(F)according to the text.,F,.Text B:Comprehension Guide&Language Points,Back,返回,Q:2._ People have talked a lot about

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