希望英语(第二版)综合教程3U2讲课稿.ppt
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1、希望希望(xwng)(xwng)英语英语 (第二版)(第二版)综合综合教程教程 1 1 希望英语希望英语 (第二版)(第二版)综合综合(zngh)(zngh)教教程程 3 3 外语教学与研究出版社外语教学与研究出版社外语教学与研究出版社外语教学与研究出版社Unit 2 Information第一页,共122页。希望英语希望英语(yn y)(yn y)(第二版)综合教程(第二版)综合教程 3 Unit 2 3 Unit 2 InformationInformationSpeakingReading AListeningWritingPresentationReading B&Reading C第
2、二页,共122页。Task 1Task 2Task 3Speaking 第三页,共122页。Look at the pictures on Page 20 and list words or phrases about them.Then work with your partner and fill in the table with words or phrases about computer and the Internet.Speaking Task 1第四页,共122页。W:Mike!M:Whats up?W:Look!My computer keeps scrolling dow
3、n though Im not touching any key!Whats going on?M:Let me see I think your computer is being attacked by some kind of virus.W:Oh,my God!Thats too bad.M:Have you backed up your files?W:Backed them up?No.What shall I do now?M:Disconnect from the Internet,update your anti-virus software and run it.W:Wil
4、l my system crash?M:Im not sure,but you are likely to lose some data.Do remember to make backups all the time.W:I will.Thanks a lot,Mike.M:My pleasure.Speaking Task 2Practice the given dialog in pairs.Then use the words or phrases from Task 1 to make up a dialog about computer.第五页,共122页。Work in pair
5、s.Take turns asking your partner thefollowing questions and make notes.Then organizeyour notes and report to the class.a)Do you have a computer of your own?b)How many hours a day do you spend on the computer?c)What do you do with the computer?Speaking Task 3第六页,共122页。Reading ATask 2Task 3Task 1TextN
6、ew Words and ExpressionsTask 4Task 6Task 7Task 8Task 5第七页,共122页。Reading A Task 11.When was the first computer invented?How large was it?At the end of World War II.It weighed thirty tons,and occupied a space as large as a boxcar.Give brief answers to the following questions.Then compare your answers
7、with your partners.第八页,共122页。Reading A Task 1Give brief answers to the following questions.Then compare your answers with your partners.2.How important is the computer to our society?It plays a very important role in our life.For example,we can surf the Internet,play computer games,store information
8、 and chat with friends.第九页,共122页。Reading A Task 1Give brief answers to the following questions.Then compare your answers with your partners.3.Do you like the computer?Why or why not?Yes,I do.I can gain a lot of information from the Net.A computer is a useful tool for me.No,I dont.Im an internot.Its
9、too hard and complicated to operate a computer.第十页,共122页。The Impact of the Information Revolution 1 1 What What has has been been the the impactimpact of of the the information information revolution,revolution,and and how how should should we we respondrespond?Lets Lets begin begin by by considerin
10、g considering how how fast fast our our world world shiftedshifted to to a a computer-computer-based based society.society.At At the the end end of of World World War War II,II,the the first first electronic electronic digital digital computer computer ENIACENIAC weighed weighed thirty thirty tons,t
11、ons,had had 18,000 18,000 vacuum vacuum tubes,tubes,and and occupiedoccupied a a space space as as large large as as a a boxcar.boxcar.Less Less than than forty forty years years later,later,many many hand-held hand-held calculators calculators had had comparablecomparable computing computing power
12、power for for a a few few dollars.dollars.Today Today most most people people have have a a computer computer on on their their desk desk with more computing power than engineers could imagine just a few years ago.with more computing power than engineers could imagine just a few years ago.Reading A
13、Task 2Now read the following passage.Mark the difficult parts,if there are any,and ask the teacher to explain afterwards.第十一页,共122页。2 2 The The impact impact of of computers computers on on our our society society was was probably probably best best seen seen when when in in 1982 1982 TimeTime magaz
14、ine magazine picked picked the the computer computer as as its its“Man“Man of of the the Year”,Year”,actually actually listinglisting it it as as“Machine“Machine of of the the Year”.Year”.It It is is hard hard to to imagine imagine a a picture picture of of the the Spirit Spirit of of St.St.LouiLoui
15、s s or or an an ApollApollo o lander lander on on the the magazine magazine cover cover under under a a banner banner“Machine“Machine of of the the Year”.Year”.This This perhaps perhaps shows shows how how important important the the computer computer has become in our society.has become in our soci
16、ety.Reading A Task 2第十二页,共122页。3 3 The The computer computer has has become become helpful helpful in in managing managing knowledge knowledge at at a a time time when when the the amount amount of of information information is is expandingexpanding rapidly.rapidly.The The information information st
17、ored stored in in the the worlds worlds libraries libraries and and computers computers doubles doubles every every eight eight years.years.In In a a sensesense,the computer age and the information age seem to go hand in hand.,the computer age and the information age seem to go hand in hand.Reading
18、A Task 2第十三页,共122页。4 4 The The rapid rapid development development and and use use of of computing computing power,power,however,however,have have also also raisedraised some some significantsignificant social social and and moral moral questions.questions.People People in in this this society socie
19、ty need need to to think think clearly clearly about about these these issues,issues,but but often often ignore ignore them them or or become become confusedconfused.Reading A Task 2第十四页,共122页。5 5 One One key key issue issue is is computer computer crime.crime.In In a a sense,sense,computer computer
20、 fraud fraud is is merely merely a a new new field field with with old old problems.problems.Computer Computer crimes crimes are are often often nothing nothing more more than than fraud,fraud,larceny,larceny,and and embezzlement embezzlement carried carried out out by by more more sophisticatedsoph
21、isticated meansmeans.The The crimes crimes usually usually involve involve changing changing addresses,addresses,records,records,or or files.files.In In short,short,they they are are old-old-fashioned crimes using high technology.fashioned crimes using high technology.Reading A Task 2第十五页,共122页。6 6
22、Another Another concern concern arises arises fromfrom the the centralization centralization of of information.information.Governmental Governmental agencies,agencies,banks,banks,and and businesses businesses use use computers computers to to collect collect information information on on its its cit
23、izens citizens and and customers.customers.For For example,example,it it is is estimated estimated that that the the US US government government has has on on averageaverage about about fifteen fifteen files files on on each each American.American.Nothing Nothing is is inherently inherently wrong wr
24、ong with with collecting collecting information information if if the the information information can can be be kept kept confidentialconfidential and and is not used for immoral actions.Unfortunately this is often difficult to is not used for immoral actions.Unfortunately this is often difficult to
25、 guaranteeguarantee.Reading A Task 2第十六页,共122页。7 7 In In an an information-based information-based society,society,the the centralization centralization of of information information can can be be as as dangerous dangerous as as the the centralization centralization of of power.power.We We should sh
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