【全套7份】英語課件-新人教版必修二第三單元Unit3-Warming-up

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 desktopa notebook computera laptopdigital camera a robot(What do they have in common?)I think thatIn my opinionI

2、 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.Discussionwork 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

3、next development?CD - DVD-ROMDVD RWCRT monitorLCD monitorCPUhard discchips/motherboardsome hardware:使用陰極射線管(Cathode Ray Tube)的顯示器LiquidCrystalDisplaykeyboardmousemodemscannerprinterspeakerfloppy disc/diskUSB flash discCD/VCD/DVDMP3 playerMP4 playerMemory:(存儲(chǔ)器)移動(dòng)硬盤USBFlash disc 1 TB 固態(tài)硬盤T硬盤Hard disc:

4、Core 2 Duo 酷睿2 : 4核龍芯8核cpu:other useful words and expressions about computer:Network網(wǎng)絡(luò) Virus病毒Download 下載Up load 上傳Program程序Website站點(diǎn)Hacker 黑客Home page 主頁P(yáng)assword密碼Desk top 桌面User name 用戶名Click 點(diǎn)擊Software 軟件Hardware 硬件Home page 主頁Reading: Who am I?Skimming: Read and answer these questions:2. Who was

5、 the first person to invent the earliest computer? 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 C

6、harles Babbage.The computer grew rapidly both in size and in brainpower.Computer had grown as large as a room.Computers were used in officers and homes.Computers connect people all over the world together.the first family of computers was connected to each other The history of computersthe second ge

7、neration (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Develop-mentEarly daysNameFunctionPoorStrongA

8、_ machineSimplify difficult sumsAn _ machineThink logically and produce an answer quicklyA _ machineSolve difficult _calculatinganalytical universal mathematical problemsDevelop-mentNetwork times_ stored inTubesLargeSmall_Small chips _Narrow WideFinance_RobotsMobile phones_Space rocketsMedical opera

9、tions 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 However, people thought I was _ until they _ I h

10、ad “artificial intelligence.”我執(zhí)行穿孔卡的指令早些時(shí)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(shí)，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 always so lonely _ there by myself, until in t

11、he 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(shí)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(gè)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 (沉迷于) themselves to the computer g