商洛学院：《新视野英语读写教程》课程教学课件（PPT讲稿）Unit 4 What High Technology Has Brought

Unit 4What High Technology Has BroughtHiTechNaigemmErst

Unit 4 What High Technology Has Brought

Main Points:L. Leading InII. Text AIlI.TextBVocabulary PracticeIV.PracticalWriting

Main Points: I. Leading In II. Text A III. Text B ●Vocabulary Practice IV. Practical Writing

Leading In1.How much do you know aboutHi-tech products?List the hi-tech products in daily use

• Leading In • 1.How much do you know about • Hi-tech products? List the hi-tech products in daily use •

NoenDE

2.Work in groups to talk about theadvantages and disadvantages ofhi-techproducts:3.How useful are hi-tech products in ourdailylives?4.What would lifebelike if these hi-techproducts had not been invented?

2. Work in groups to talk about the advantages and disadvantages of hi-tech products: 3.How useful are hi-tech products in our daily lives? 4. What would life be like if these hi-tech products had not been invented ?

5.Something aboutcomputersIntroductionIn1946,theUniversityofPennsylvaniain USA produced the first computer-ENIAC.It took up to180sq,m and weighed 30 tons.After 60 years, computers have takenseveral significant technical revolutions and they have beenadvancing rapidly. Some of them are as light as a piece of paperand small as your nail.They areeasy to carry and the speed of theCPU is10million times faster than it was in1946.Therefore,itisobvious that the main trends of computer development aregettingsmallerand enhancing speed'.Because of practicability anduniversality,computers haveembedded intoour lives and mostfields cannot research without them. In other words, computertechniques expedite other subjects and consequently affect onhumanprogress

5.Something about computers Introduction In 1946, the University of Pennsylvania in USA produced the first computer – ENIAC. It took up to180 sq.m and weighed 30 tons. After 60 years, computers have taken several significant technical revolutions and they have been advancing rapidly. Some of them are as light as a piece of paper and small as your nail. They are easy to carry and the speed of the CPU is 10 million times faster than it was in 1946. Therefore, it is obvious that the main trends of computer development are ‘getting smaller’ and ‘enhancing speed’. Because of practicability and universality, computers have embedded into our lives and most fields cannot research without them. In other words, computer techniques expedite other subjects and consequently affect on human progress

Trends in computerdevelopmentThemaintrends of computer development aregetting smallerandenhancing speed'.Gettingsmall is not only size but also the consumed power.As we knowresources are getting less, so saving power is really necessarySome people say it is equated with saving capital.For personalcomputers, if the consumed power is low,it means you can useyour computer for a long time without changing the battery.Thedevelopment of saving thepower ofcomputer and enlarging thecontent ofthebattery benefits some people whohave touse theirlaptops in different places and don't want to carry chargers.Enhancing speed has two meaning. One is to accelerate the speedof processing.Forexample,wecan run lots of programmers atthesame time and it will not break down. Another one is enlargingmemory, which is to increase the space of saving data andtransferring data

Trends in computer development The main trends of computer development are ‘getting smaller’ and ‘enhancing speed’. Getting small is not only size but also the consumed power. As we know, resources are getting less, so saving power is really necessary. Some people say it is equated with saving capital. For personal computers, if the consumed power is low, it means you can use your computer for a long time without changing the battery. The development of saving the power of computer and enlarging the content of the battery benefits some people who have to use their laptops in different places and don’t want to carry chargers. Enhancing speed has two meaning. One is to accelerate the speed of processing. For example, we can run lots of programmers at the same time and it will not break down. Another one is enlarging memory, which is to increase the space of saving data and transferring data

The above paragraph is about the trend of hardwaredevelopment. The following is about software.It has twoaspects -operating system and application software.Theoperating system likes a layer to provide conditions forthe application of software and connect to thehardwareEven if the hardware and software have enhancedperfectly, without an operating system they cannot worktogether. So operating system plays an important role insoftware.The application of software is associated withour daily lives.For instance, MsN is guite usefulsoftware and a more popular chatting tool on the InternetBy using it, we can see and talk to others wherever we are.Theimpact ofthe computerAccording to the trend of computer developmentcomputers will be brought in every fields and change ourlives completely in thefuture.I now want to emphasizetheimpactondaily life

The above paragraph is about the trend of hardware development. The following is about software. It has two aspects – operating system and application software. The operating system likes a layer to provide conditions for the application of software and connect to the hardware. Even if the hardware and software have enhanced perfectly, without an operating system they cannot work together. So operating system plays an important role in software. The application of software is associated with our daily lives. For instance, MSN is quite useful software and a more popular chatting tool on the Internet. By using it, we can see and talk to others wherever we are. The impact of the computer According to the trend of computer development, computers will be brought in every fields and change our lives completely in the future. I now want to emphasize the impact on daily life

Firstly,the eguipment is going to be intelligent.It will beabletodealwith orderscorrectly and be connectedtotheInternet.People will easily command the eguipment.Moreover,thecomputerwill monitorall eguipmentsynchronously and send the alarm to the concerned personSecondy.theeffecton communicationwillbeimprovedOur mobile phone can be used instead of a laptop.We cannot only use it to havea visual call but also deal with ourFiles.Surfingthe Internetwillbe donewithout connection towires.Finally,TheGPS（Global PositionSystem)will bringanother benefit.When you are on holiday, wherever youare, you can find your position and a map of that area onyourmobile or your car.Possibly you can get moretravelinginformation whichis sent bythe local station.Anotherareaof progress will be thetranslation of languages:A phone systemthattranslateslanguageisalsowithinthereachof speech-understandingtechnology.T1]This technology can translate your languageto others,ifcomputer find it is difficult to translate, it might ask you torepeatorsayinotherways

Firstly, the equipment is going to be intelligent. It will be able to deal with orders correctly and be connected to the Internet. People will easily command the equipment. Moreover, the computer will monitor all equipment synchronously and send the alarm to the concerned person. Secondly, the effect on communication will be improved. Our mobile phone can be used instead of a laptop. We can not only use it to have a visual call but also deal with our files. Surfing the Internet will be done without connection to wires. Finally, The GPS (Global Position System) will bring another benefit. When you are on holiday, wherever you are, you can find your position and a map of that area on your mobile or your car. Possibly you can get more traveling information which is sent by the local station. Another area of progress will be the translation of languages: ‘A phone system that translates language is also within the reach of speech-understanding technology. ’[1] This technology can translate your language to others, if computer find it is difficult to translate, it might ask you to repeat or say in other ways

Find outthe advantages of the computer in groupsThe computer is very useful, but if we can't make a good use of itIt will be bad for us. Find out what you should not do on thecomputer with your friends on the paper.L Find out what you should not do on thecomputer:1,do word processing2,surf the Internet3.listentomusic4.spend toomuch time on the computer games5.send emails6.do online shopping7.downloadbad information8.make a home page9.visit bad websites

Find out the advantages of the computer in groups The computer is very useful, but if we can’t make a good use of it. It will be bad for us. Find out what you should not do on the computer with your friends on the paper. I. Find out what you should not do on the computer:_ 1. do word processing 2. surf the Internet 3. listen to music 4. spend too much time on the computer games 5. send emails 6. do online shopping 7. download bad information 8. make a home page 9. visit bad web sites