高中英語-Unit3《Computers》課件16-新人教版必修2

1、 Unit 3 Computers Period 1 Warming upHeavy!Difficult! Hard!Tired! Easy! Fast! Free!keyboardmousemonitorscreenspeaker host computercamera What do they have in common?an abacusa calculatora notebook computera laptopA huge computera robotA PC (personal computer)(What do they have in common?)I think tha

2、tIn my opinionI believe thatWhats your reason?Why do you think so?1.They can be used for calculating. 2.They can deal with maths problems.3.They are our friends.4.They are useful and helpful.DiscussionPDAabacuscalculatorhuge computerPClaptopWhats next?Can you tell the development of computers?robotw

3、ork for us in Mars(火星)Whats next?carry thingswork in wars (戰(zhàn)斗)仿真機(jī)器人entertainment 娛樂What do you think will be the next development?Do you know in what ways computers are used today? Work out a list and compare it with your partner.search for see movieslisten to musicread books and magazinessend email

4、s to friendsdownload music and filmsbuy things on lineplay games on the computerdraw pictureslook at photographs on the computeruse a computer for school worktake part in chat groupsReading: Who am I?Skimming: Read and answer these questions:2. Who was the first person to invent the earliest compute

5、r? 3. Who was the next important person to design computers? Charles BabbageAlan Turing1. Who am I?A computer.timeline1642: 1822: 1936: 1940s:1960s: 1970s: Now: Scanning:The computer began as a calculating machine. the Analytical Machine was built by Charles Babbage.The computer grew rapidly both in

6、 size and in brainpower.Computer had grown as large as a room.Computers were used in offices and homes.Computers connect people all over the world together.the first family of computers was connected to each other Complete the chart below. Para-graph 1Para-graph 2Para-graph 3Topic sentenceSupporting

7、 detailstubescommunica-tions financeScanningReading ComprehensionParagraph 1Topic sentenceOver time I have been changed quite a lot.Supporting details1 calculating machine2 analytical machine3 universal machine4 PC5 laptopParagraph 2Topic sentenceThese changes only became possible as my memory impro

8、ved.Supporting details1 tubes2 transistors3 chips4 network5 World Wide WebParagraph 3Topic sentenceSince the 1970s many new applications have been found for me.Supporting details1 communications 2 finance 3 trade4 robots 5 mobile phones6 medical operations7 space rockets8 providing a life of high qu

9、alityThe history of computersthe second generation (1956-1963)the third generation (1964-1971)the fourth generation (1971- )The first generation (1945-1956)The development of computers:Calculating machineAnalytical machineUniversal machineArtificial intelligenceComputerInternet計(jì)算器分析機(jī)萬能機(jī),通用機(jī)器人工智能Deve

10、lop-mentEarly daysNameFunctionPoorStrongA _ machineSimplify difficult sumsAn _ machineThink logically and produce an answer quicklyA _ machineSolve difficult _calculatinganalytical universal mathematical problemsDevelop-mentNetwork times_ stored inTubesLargeSmall_Small chips _Narrow WideFinance_Robo

11、tsMobile phones_Space rocketsMedical operations MemoryTransistorsApplicationsCommunicationTradeIntensive reading: Underline the phrases &sentences that you think are importantStar sentences:P1 L2 I _instructions from cards with holes.P1 5 Earlier I was not very big, but then I became _ .P1 L6 Howeve

12、r, people thought I was _ until they _ I had “artificial intelligence.”我執(zhí)行穿孔卡的指令早些時候我并不是很大，但是后來我變得非常大可是，人們認(rèn)為我頭腦簡單， 直到發(fā)現(xiàn)我有人工智能時，他們才不那么想了。followedhugesimple-mindeddiscoveredP1 L8 As the years have _, I have been made smaller and smaller.P2 L1 There were _ when my size was _changed.P2 L3 But I was alwa

13、ys so lonely _ there by myself, until in the early 1960s,they gave me a family _ by a network.隨著歲月的流逝， 我被做得越來越小了.有段時期我的體積完全變了但是我總是孤孤單單地站在那里，直到60年代初， 人們才給了我一個用網(wǎng)絡(luò)連接的家庭。gone bytimestotally standingconnectedAdvantages and disadvantages of the computers. Discussion advantages we cancommunicate with friends listen to the music see films & watch news play games do shopping save a lot of time do a lot of useful things DisadvantagesSome people especially the teenagers abandon (沉