UNIT3-COMPUTERS公开课省公开课金奖全国赛课一等奖微课获奖课件

1/46WhatisitinEnglish?abacuscalculator2/46hugecomputerPC(personalcomputer)3/46laptopPDA(personaldigitalassistant)4/46

robot5/46

robots6/46

robot7/46

robot8/46Whatarethey?9/46

wateringplayingworkingWhatistherobotdoing?10/46

What'sthenextdevelopmentofcomputers?11/46PDAabacuscalculatorhugecomputerPClaptopWhat’snext?Alltheinventionstellusthe___________ofcomputers.robotdevelopment12/46Puttheminanorderaccordingtothetimewhentheyappeared.()universalmachine()laptop()calculatingmachine()robot()PC()analyticalmachine13/46WhoamI?14/46LookatthepicturesandthetitleofthereadingpassageonPage18andpredictwhatitisgoingtobeabout.___________________________________Itisaboutcomputers.15/46Fastreading:1.WhoamI?Acomputer.2.Listthekeywordsfromthepassagetosupportyouridea.calculatingmachine(L2)analyticalmachine(L5)universalmachine(L13)PCandlaptop(L16)16/46Puttheminanorderaccordingtothetimewhentheyappeared.()universalmachine()laptop()calculatingmachine()robot()PC()analyticalmachine12345617/46Thepassagemainlytellsusashorthistoryofthedevelopmentofthe_________andits___________indifferentfields.computerapplications18/46

Thecomputerhadgrownaslargeasaroom.TheanalyticalmachinewasmadebyCharlesBabbage.Thecomputergrewrapidlybothinsizeandinbrainpower.1642182219361940sThecomputerbeganasacalculatingmachine.19/46

1960sThefirstfamilyofcomputerswasconnectedtoeachother.1970sComputerswereusedinofficesandhomes.Now

Computers_________peopleallovertheworldtogether.

connect20/46Fromthetimelineabove,wecanknowthatthepassageiswritteninanorderof___________.time21/46ParaⅠ:

OvertimeIhavebeenchangedquitealot.(CharlesBabbage)analyticalmachine(simplifydifficultsums)(solveanydifficultmathematicalproblem)(personalcomputer)calculatingmachineuniversalmachinePClaptop(AlanTuring)

22/46

Thesechangesonlybecamepossibleasmymemoryimproved.memory(存放量)storedin:tubestransistors

smallchips

networkWhataboutmyshape?WorldWideWebParaII:23/46communicationspacerocketsfinancetrade

medicaloperationsrobotsmobilephonesSincethe1970s,manynewapplicationshavebeenfoundforme.ParaIII:24/461.Atopicsentencetellsus______________ofaparagraph.2.Atopicsentenceisusuallythe____

or_____sentenceofaparagraph.Topicsentencesthemainideafirstlast25/46:Thesechangesonlybecamepossibleasmymemoryimproved.OvertimeIhavebeenchangedquitealot.ParaⅠ:Sincethe1970s,manynewapplicationshavebeenfoundforme.ParaIII:changesParaIImemoryapplicationsfunction:poorstrongsmalllarge

narrowwidesizelargesmall26/46LearningmaterialP3

Step2.Carefulreading2)Choosethebestanswersaccordingtothetext.()(1)Asacalculatingmachine,I

A.workedveryslowly

B.couldsimplifydifficultproblems

C.developedveryfast

D.waswidelyusedallovertheworldB

27/46()(2)Wherewasmymemorystoredatfirst?

A.Inboxes.

B.Ontransistors.

C.Onsmallchips.

D.Intubes.()(3)Likeanelephant,I

.

A.amverylarge

B.amverystrong

C.haveverygoodmemories

D.standtherebymyselfDC28/46WhatcanwedoontheInternet?29/46listentomusicreadbooksandmagazines30/46seemoviessearchforinformation31/46downloadmusicandfilmssendemails32/46goshoppingonlineplaycomputergames33/46communicatewithothersbyQQ34/46Discussthedisadvantagesofcomputers.35/46

1.

Someyoungpeopleareeasilyaddicted

to

games.2.

Usingcomputerstoolongisbadforoureyesandhealth.3.

Theyoungwillpaylessattentiontohandwriting.4.

Theyoungtendtobecheated.5.

Thereisunhealthyinformationonthenet.6.Youmayloseyourprivateinformation.36/46

Howtoavoidthedisadvantagesandmakegooduseofacomputer?

Donottellothersyourprivateinformation.(telephonenumberandaddress)2.Donotvisitsomeunsafewebsites.3.Donotdownloadsomeunknownfiles.4.Donotusecomputersjustforfun.5.Donotspendtoomuchtimesurfingontheinternet.37/46

Difficultsentences(1)原句：IdevelopedveryslowlyandittooknearlytwoyearsbeforeIwasbuiltasananalyticalmachinebyCharlesBabbage.分析：beforeconj.在之前，……之后才……，还没来得及……就……。在此句中可译为：________________________全句译文：__________________________________________________________________________……之后才……我发展迟缓，差不多过了两百年后，查尔斯.巴比奇才将我制作成了一台分析机。

38/46拓展：Itwillbelongbefore...要过很久才

Itwon’tbelongbefore…用不了多久就……Itwaslongbefore...过了很久才

Itwasnotlongbefore没过多久就()It_______longbeforewe______theresultoftheexperiment.A.willnotbe;willknowB.is;willknowC.willnotbe;knowD.is;knowC39/46(2)原句：AfterIwasprogrammedbyanoperatorwhousedcardswithholes,Icould"think"logicallyandproduceananswerquikerthananyperson.分析：who在句中引导_____从句，修饰先行词________,在从句中充当_________全句译文：__________________________________________________________________________定语operator主语在操作员用穿孔卡为我设计程序后，我能够进行逻辑“思索”，而且能够比任何人更加快地算出答案。40/46(3)Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold.a)so…that…

意思是“如此…以至于…”，引导结果状语从句，so后须接形容词或副词。

sothat引导从句可表示结果或表示目标

HeransofastthatIcouldnotcatchupwithhim.

Hewentearlysothathegotagoodseat.

Hewentearlysothathecouldgetagoodseat．

41/46

()Sheis_______thatweallwanttomakefriendswithher.A.asuchkindgirlB.suchkindagirlC.soakindgirlD.sokindagirlD42/46

b)句中Ihavebeentold在句中充当_____,是一个_________，省略了关系词____,关系词在从句中充当_______全句译文：__________________________________________________________________________定语定语从句that宾语

伴随时间推移，我记忆能力发展得如此之快，就像一头大象一样，从来不会忘记告诉我任何事情。原句：Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold.43/46(4)

ButIwasalwayssolonelystandingtherebymyself,untilintheearly1960stheygavemeafamilyconnectedbyanetwork.非谓语动词三种基本形式--doing,todo,donedoing_________________done_________________todo_________________此句中，standin