广东省汕头市潮南实验学校高中英语必修2课件：UNIT3 READING .ppt

1、Heavy!Difficult!Hard!Tired!Easy!Fast!Free!monitorkeyboardmousespeakermodemscannerprinterUSB flash dischard discLabel each part.124356monitorscreenCD-ROMmousekeyboardhard disk1.Look at these pictures.In pairs discuss what they have in common.2.What do they tell you about the development of computers?

2、3.What do you think will be the next development?Whats next?1.Look at the title of the reading passage.Predict what it is going to be about.2.Do you know in what ways computers are used today?Work out a list and compare it with your partner.Read the text quickly.1.Who am I?A.An operatorB.Alan Turing

3、C.A computerD.Human raceC2.Whats the passage about?The text mainly tells us a short history of the development of the _ and its _ in different puterapplications Read the passage and finish the timeline.16421822The analytical machine was made by Charles Babbage.The computer began as a calculating mac

4、hine.1940sThe first family of computers was connected to each other.The computer grew rapidly both in size and in brainpower.Computers had grown as large as a room.1960s1936 1970s nowComputers were used in offices and homes.Computers connect people all over the world together.Read the passage again

5、and complete the chart below.DevelopmentEarly daysNameFunctionPoorStrongA _ machineSimplify difficult sumsAn _ machineThink logically and produce an answer quicklyA _ machineSolve difficult _calculatinganalyticaluniversalmathematical problemsDevelopmentNetwork times_ stored inTubesLargeSmall_Small c

6、hips_Narrow WideFinance_RobotsMobile phones_Space rocketsMedical operations MemoryTransistorsApplicationsCommunicationTradeTopic sentenceSupporting detailsParagraph 1Over time I have been changed quite a lot.Calculating machineAnalytical machineUniversal machinePClaptopTopic sentenceSupporting detai

7、lsParagraph 2These changes only became possible as my memory improved.tubestransistorschipsnetworkWorld Wide WebTopic sentenceSupporting detailsParagraph 3Since the 1970s many new applications have been found for munications financetrade robotsmobile phonesmedical operationsspace rocketsproviding a

8、life of high qualitythe second generation (1956-1963)the third generation(1964-1971)the fourth generation (1971-)The first generation(1945-1956)The history of computersSummary of the passage.I began as a _ machine in 1642.It took nearly two hundred years _ I was built as an analytical machine.I beca

9、me a“universal machine”in 1936 to _ any mathematical problem.I was very big at one time.calculatingbeforesolveHowever,as time _ by,I was made smaller and smaller.I was given a family _ by a network in the early 1960s.I was able to _ my knowledge with others _ the World Wide Web.wentconnectedsharethr

10、oughI have been widely used in many fields,such as in communication,_ trade and medical _.I have also been put into robots and space rockets to _ the Moon and Mars.Im glad I am a devoted friend and helper of the human race.financeoperationsexplore1.What is PC?Speak the name on the whole.It means:per

11、sonal computer.2.What is IT?Information Technology.3.What is W.W.W?World Wide Web.4.科学技术Science and technology.5.人工智能Artificial intelligence.6.笔记本电脑laptop How computers have changed our lives?1.Brainstorm a list of things that you,your school and your family use computers for.2.Think about what you

12、would have to do if you could not use computers any more.List of uses of computersWhat people did before computersemailswrite lettersword processing write by hand or typewritersearch for informationlook in encyclopedia,library,etc.List of uses of computersWhat people did before computerswatch DVDsgo

13、 to the cinemastore informationwrite everything down and put into files and folders Retell the text according to the following clues and then write down your retelling.HomeworkChanges of the machineCalculating machineAnalytical machineUniversal machineMachine with artificial intelligenceMachine with new transistorA family connected by a networkA family used by the Internet