德宏州梁河县第一中学高中英语课件 必修二：UNIT4 WARMING_UP_AND_READING.ppt

1、I am very old now.I was born in China.Many people used me for calculating in the past,but now I am a bit lonely because they dont like me now.Do you know who I am?abacusRiddles(谜语)I am very small.I can be used for calculating.In China,a lot of students use me when solving mathematical problems.Do yo

2、u know who I am?calculatorI am very big.Scientists use me to solve some mathematical problems.huge computerDo you know who I am?PC Personal ComputerIm a small,relatively inexpensive computer designed for an individual user.Im based on the microprocessor technology.At home,people use me to surf the I

3、nternet and play games.Do you know who I am?I can be used for calculating.Besides,I can also be used for watching DVD,sending e-mail and communicating through the Internet.However,I am not a PC,because Im small enough for you to take me with you.Do you know who I am?laptopPDA Personal Digital Assist

4、antI am so small in size that I can fit in your hand.I usually have a small screen usually bigger than a digital phone,however smaller than the smallest laptop,Im a great way to store telephone numbers,access the internet,make calculations,and so on.Do you know who I am?robotIm a machine that works

5、automatically.I can do a wide variety of tasks,especially suitable for doing jobs too boring,difficult,or dangerous for human beings.Do you know who I am?PDAabacuscalculatorhuge computerPClaptopWhats next?Can you tell the development of computers?robotcomputersUse/Functions/ApplicationsHistory/Devel

6、opment Components(组成 部分)Inventors/Engineers Brainstorming computersFunctions/ApplicationsllCommunicationCommunicationllFinanceFinancellTradeTradellMedical operatorsMedical operatorsllScienceSciencellEntertainment Entertainment ll.History/Development llAbacusAbacusllCalculatorCalculatorllHuge Compute

7、rHuge Computerll Personal Personal Computer ComputerllLaptopLaptopllcomponentsllSoftware Software llHardwareHardwarell keyboard mouse keyboard mousell monitor monitor tubestubesll transistors chip transistors chip Inventors/Engineers llSteve Jobs AppleSteve Jobs ApplellCharles BabbageCharles Babbage

8、llAlan TuringAlan Turingll.BrainstormingDo 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 emails to friendsdownload music and filmsbuy things on lineplay games on the computerdraw pictur

9、eslook at photographs on the computeruse a computer for school worktake part in chat groupsWHO AM I?ReadingRead the whole passage as fast as you can.Try to get the main idea of this passage.Find out the topic sentence of each paragraph and underline them.skimmingThe topic sentence of each paragraph.

10、skimmingPara 1Para 2Para 3Over time I have been changed a lot.Those changes only became possible as memory improved.Since 1970s many new applications have been found out for me.Scanning:Para1 Fill in the chart with the information in para 1.Time Machine ApplicationsIn 1642A _machine_difficult sumsAb

11、out in _ An analytical machineThink_In 1936A _machineSolve any difficult problemBy the 1940sA larger machine_worried the designers_Personal computerLaptop _1842calculatingSimplifylogicallyuniversalUsed in offices and homesSince the 1970sIt was considered a technological evolution and the start of th

12、e artificial intelligence.I have changed a lot from a calculating machine to an analytical machine.I can do many things as human race.RealityScanning:Para2 1.My shape didnt change even though my memory improved.2.The older I am,the larger I have become.3.Over time I have been very easy to forget thi

13、ngs because I dont develop enough memory.4.I was able to share my knowledge with others through the World Wide Web in the early 1960s.T or FFFFTThe information was stored in tubes,then on transistors and later on the chips.I was given a family connected by a network.The size has no nothing to do wit

14、h the age.My memory became so large,like an elephant,that I never forget anything I have been told!.Scanning:Para3 1.What are the new applications of the computer?2.What role do computers play in the life of human being?The supporting details of the topic sentenceScanning:Para3 What are the new appl

15、ications of the computer?CommunicationFinancemobile phonesTrademedical operationspace rocketsrobotsWhat role do computers play in the life of human being?Scanning:Para3 pThey provide humans with a life of high quality.pThey are devoted friends and helpers of the human race.Questions and AnswersRevie

16、wThe life of Mr.ComputerI was bornI grew upI founded a familyI careerReviewThe life of Mr.ComputerHe was born He grew up He founded a familyHis joblIn FrancelGood at calculatinglPeople call me a calculating machine and then an analytical machinelGain weight by storing too much informationlLose weigh

17、t by improving my memory with tubes,then the transistors and chipslChange my shape as a PC or laptoplFound a family by a network in the early 1960s l Share my knowledge with others with the World Wide WeblI work for human race and help them improve the quality of life.lI play a key role in communica

18、tion,finance,and trade.Choose the main idea of this passage.skimmingA.The computer wants to find“who he is”.B.The function(功能)of the computer.C.The computer becomes popular around the world.D.The history and the applications of the computer.Further Understanding1.The passage is basically written by_

19、 order?Time2.What is the most used rhetoric（修辞法）in this passage?A.simile（明喻）B.personification(拟人)C.metaphor(暗喻）3.In what ways have computer been changed?Further Understandingsizeshape speedbrainpower/memoryapplicationrelationship with human racesmall large smaller faster and faster more and more dev

20、elopedused in more and more fieldscloser and closer1.计算机器2.分析机3.穿孔卡4.技术革命5.通用机器6.数学问题7.人工智能8.晶体管9.存储容量10.网络11.万维网calculating machineanalytical machinecard with holestechnological revolutionuniversal machinemathematical problemsartificial intelligencetransistormemorynetworkWorld Wide Web16421822 The

21、analytical machine was made by Charles Babbage.The computer began as a calculating machine1936 The computer grew rapidly both in size and in brainpower.Finish the timeline below.Comprehending1940sThe first family of computers was connected to each other.1970s Now1960sComputers were used in offices a

22、nd homes.Filled with happiness that I am a devoted friend and helper of the human raceThe computer had grown as large as a room.Paragraph 1Topic sentenceOver time I have been changed quite a lot.Supporting details1 calculating machine2 analytical machine3 universal machine4 PC5 laptopComplete the ch

23、art below.Paragraph 2Topic sentenceThese changes only became possible as my memory improved.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 trade

24、4 robots 5 mobile phones6 medical operations7 space rockets8 providing a life of high qualityTechnology changes life，Creativity inspires fashion!技术改变生活，创意引领时尚！December 1December 1st,st,2010 20101.calculate v.e.g.calculate the cost of sth.calculator n.计算器让我们一起回忆一下以or结尾的词吧：visitor,survivor,competitor,

25、operator 2.simplify vt.简化 Simple adj.Simply adv.e.g.The English in this story has been simplified to make it easier to understand.这个故事里的英语被简写了，可更容易理解。Key sentence patterns 3.It took nearly two hundred years before I was built as an“It took/was+一段时间+before“It takes/will be+一段时间+before 从句”是一个固定句型,意为“多

26、久才”。例1.(08北京）Im sorry you have been waiting so long,but itll still be some time _ Brain gets back.A before B.since C.till D.after4.logical adj.合逻辑的；合清理的a logical thinker 思想有逻辑性的人a logical process 合理的程序logically adv.逻辑上；有条理地He acted logically under the circumstances.在这种情况下他做事仍然很理智。Logically,the decis

27、ion is obvious.从逻辑上，这项决定是明显的。5.technologytechnique(n.)technologist(person)technical(adj.)technological(adj.)1)This company is in great need of many _.2)To build this machine,you must have _ability.3)Do you know the knowledge of agricultural _.technologiststechnicaltechnique6.artificial adj.人造的;假的art

28、ificial flowers/limbs/pearls 假花/假肢/假珍珠artificial intelligence 人工智能7.intelligence U 智力；聪明,情报intelligence quotient 智商an intelligence test 智力测验an intelligence agent 情报员;谍报员intelligent adj.智能的；聪明的8.solvevt.解决；解答1)I cant solve the problem.我解答不了这个难题。2)Help me to solve my financial troubles.请帮我解决经济困难.3)The

29、 greatest scholar cannot solve this difficult problem.再伟大的学者也没有办法解答这个难题吧。9.fromon 从时起From then on,the prince andprincess lived happily.从那时起，王子与公主就幸福地生活在一起。from now on 从现在起10.As time went by,I was made smaller.go by:pass 逝去,过去；随着时间的流逝go by 经过(某地)；(时间)过去；(机会等)失去；遵循，依据办事 一辆汽车全速驶过。A car went by at full

30、speed.勿失此良机。Dont let this good chance go by.The river water was seriously polluted._,many fish died.A.As a result B.After all C.Thanks to 11.as a result(=therefore)As a result of(=because of)结果,因此因为思维拓展result in 导致，结果为result from 因为，源自The fight resulted _a bitter(激烈的）argument.A bitter argument resul

31、ted _ the fight.frominAs a result 结果；终于；因此考例 My friend Martin was very sick with a strange fever;_,he could neither eat nor sleep.(江西2005)A.as a result B.after all C.any way D.otherwise点拨 考查短语辨析。as a result结果；after all毕竟；any way不管怎样；otherwise 否则。由句意可知要选as a result。12.“Over time my memory has develop

32、ed so much that，like an elephant,I never forget anything I have been told.“He is _good a student _we all like him.A.such;that B.so;who C.such;as D.so;thatso+adj+a/an+n.+thatHe is _ a good student _we all like him.A.such;that B.so;who C.such;as D.so;thatso thatsuch thatsuch+a/an+adj+n(名词)+that如此.以致于

33、adj./adv.so+adj.+a/an+单数名词that a/an adj.+单数可数名词such+adj.+复数可数名词that adj.+不可数名词 重点词汇：13.Anyhow,my goal is to providehumans with a life of high quality.anyhow adv.无论如何，不管怎样，反正；尽管如此，(anyway)Anyhow I dont believe it can be done.无论如何我也不相信这事能办成。Anyhow,Ill see you tonight.无论如何，今天晚上我要见你。I couldnt think of t

34、he name of that man anyhow.我怎么也想不出那人的名字来了。14.goal(n)c He has achieved his goal.That last goal was a beauty.Thats the twentieth goal hes kicked this season.目标，目的进球（进球）得分 Learn through use(即学即用)Excuse me,could you tell me the way to the British Museum?Sorry,Im a stranger here.A.Thanks anyway B.It doesnt matter C.Never mind D.No problem解析 A.不管怎样，还是要谢谢你。B.没关系。C.不要紧；不用担心。D.没问题。句意为：打扰了，你能告诉我去大英博物馆的路吗？抱歉，我在这儿是个陌生人。不管怎样，还是要谢谢你。3)Im not sure what time Ill arrive,maybe half past seven or a quarter to eight._,Ill be there as early as possible.A.Anyhow B.However C.Thus D.Therefore