Computer-using-language课件(新人教版高中英语必修-2-unit-3)

金太阳教育Computersusinglanguage新课标高一版ImportantVocabularycalculate,calculator,PC,notebook,common,analytical,simple,simple-minded,technology,technological,revolution,universal,mathematical,artificialintelligence,anyway,totally,network,truly,race,birth,IT,advantage,disadvantage,type,disagree,choice,material,personally,create,coach,move,arise,brain,mop,wanderincommon,inone’sopinion,goby,so…that,dealwith,humanrace,inaway,makeup,afterall,withthehelpof,watchoverListentoaconversationaboutdifferentkindsofinformationtechnologyorIT.Payattentiontotheadvantagesanddisadvantagesofeachone.Discusstheadvantagesanddisadvantages.Trytousethefollowingexpressionsinyourdiscussion.Theadvantage/disadvantageis…Idon’tlikethisonebecause…Whatisyourreason?Inmyopinion…Ibelievethat…I’vedecided…Ithinkthisoneisbetterbecause…Let’smakeourdecision.LM:WhatareyoudoingDave?D:

I’mreadingaboutinformationtechnology.LM:

Youmeanthingslikecomputers?Inmyopinionthey’resoboringtoreadabout.They’reonlygoodtouse.D:

Butthey’rejustonekindofIT.LM:Really?SowhatelseispartofIT?ListeningtextLiMing=LMDave=DD:

We’vehadITforalongtime.Books,radiosandTVsarealsokindsofIT.LM:

Oh.Ineverthoughtofthatbefore.Booksareawonderfulwayforustogetinformation.D:

Yeah,Ibelievethattoo.Theyarecheapandeasytotakewithyoubutsometimestheinformationisoutofdate.LM:

Iagree.Theworldischangingsofast.Butinmyopinionlisteningtosportsontheradioisbetterthananythingelse.SometimesIalsolistentoEnglishprogrammesontheradio.Buttheyspeaksofastandsometimesit’sdifficulttounderstandeverything.D:

Yes.IalsolistentoEnglishontheradiobutit’seasiertofollowonTVbecauseyoucanalsoseewhatisgoingon.SometimesitismoreinterestingtowatchsportsonTVthanjustlistentothemontheradio.LM:Idisagreebecauseyougetsuchalotofinformationonthetechnicalaspectsofagameontheradio.Youdon’tgetthatonTV.ButIstillthinkthatthecomputeristhebestkindofIT.Youcanwatchafilmonit,writetofriends,getinformation,andfindoutwhatisgoingonintheworld.D:

Iknow,butitisalsothemostexpensiveanditistoobigtocarrywithyoueverywhere.AlsotheInternethasnobodytocheckwhetherthaninformationyoufindthereiscorrect.Soyouhavetobecareful.LM:

Well,IsupposeallkindsofIThavebothdisadvantagesandadvantages.TypeofITAdvantagesDisadvantagesTVWebRadioBookYoucanbothlistenandwatch.Youcanfindinformation.YoucanlistentoEnglish.Youcangetinformation.Youcannotwritetofriends.Itisveryexpensive.Youcannotwatchafilm.Sometimesitisoutofdate.Reading&SpeakingReadingWhatdoesAndylooklike?Andylookslikeahuman.Thinkaboutthefollowingquestions.2.Whatcanitdo?Itisdesignedtoplayfootballgamesandcanmoveandthinklikeahuman.3.WhatpartdoesAndyplayinthefootballteam?

He’sastriker.1.advantages

n.

优点;优势;有利条件Thereareseveraladvantagesincitylife.takeadvantageof利用betoyouradvantage对……有利

disadvantage

n.

缺点,劣势;不利条件

Languagepoints2.type

1)n.类型Thisisanewtypeofmachine,withlotsofmetersonit.2)v.

打字Willyoupleasetypethisletterforme?type:表示各项事物在本类中都是典型的。kind:特指在分类中能放在一起的性质相同相似的一类事物。3.disagree(vi)常与with连用(食物,天气等)不适合Muttondisagreeswithme.不同意;意见不同Idisagreewithyouaboutthis.不一致;不符Hisreportdisagreeswiththefact.4.personallyadv.

就自己而言;就我个人来说Shedidn’tliketheplan,but

personallyIseenothingwrongwithit.person(n)--personal(adj.)--personally(adv.)5.ina/oneway在某种程度上,从某种意义上说Inaway,hisEhewayonthe/one’sway(to)在去……的路上bytheway顺便提一下

innoway决不alltheway自始自终;完全地inthisway用这种方法与inaway同义的词组有inoneway和insomeways。容易与之混淆的词组是intheway意为“造成阻碍”，请比较：

Inaway,Ilikethisnewtextbookverymuch．I’mafraidyourbikeisintheway．Soyoumadeitafterall!Afterall,whatdoesitmatter?6.

afterall

毕竟;到底;终究

1)有“别忘了”的意思2)放在句末,“虽然有前面说过的话”或“与预料中的情况相反”的意思aboveall首先;最重要的是atall根本(用于加强语气)用于否定句,疑问句和表示条件的从句firstofall首先inall总共;总计Sheshouldhaveofferedtopay—she’samillionaire,afterall．7.withthehelpof

在……的帮助下

Withthehelpoftheteacher,IhavemaderapidprogressinmyEnglishstudy.8.watchover看守;监视;照看Theywerewatchedoverbythreepolicemen.watchout(for)当心;注意undertheclosewatch在严密的监视下watchforsb./sth.

观察等待keepawatchon监视SpeakingInsmallgroups,discusshowtodesignyourownandroid.Thefollowingquestionscanhelpyou.1.Whatwouldyoulikeittolooklike?2.Whataresomeofthethingsyouwouldlikeittodo?3.Doyouwantittobelikeamanorawoman,orneither?4.Howmuchwoulditcost?Ithinkthat…Inmyopinion…Ibelievethat…What’syourreason?Ihaddecidedthat…A:

Whatkindofrobothaveyoudecidedtomake?B:I'vedecidedthatweshouldhaveahomeworkandroid.Itcoulddoallourworkafterclassandleaveusmoretimetodofootball．Sampledialogue:B:Inmyopinion,itshouldhavefourarmstocarrythebooks,alargeheadtorememberallthelessonsandaprintertowriteouttheanswers．Whatdoyouthink?A:OK.Butwhatdoyouthinkitshouldlooklike?A:Well,thatsoundssensible.Perhapsitcouldalsoputalltheexercisesintospeciallymarkedboxesforeachsubjectsowecouldfindthemquickly.Whataboutputtingthatinitsstomacharea?B:Doyouwantittobeamanorawoman?Youcanchoose．A:I'vedecideditshouldbeagirl．B:What'syourreason?A:Girlsaresohard-working．B:Soundsgoodtome!Let'sdrawitnow!Speaking&WritingSharing

Whatisacomputer?Aprogrammablemachine.Thetwoprincipalcharacteristicsofacomputerare:

Itrespondstoaspecificsetofinstructionsinawell-definedmanner.

Itcanexecuteaprerecordedlistofinstructions(aprogram).

Moderncomputersareelectronicanddigital.Theactualmachinery--wires,transistors,andcircuits--iscalledhardware;theinstructionsanddataarecalledsoftware.Allgeneral-purposecomputersrequirethefollowinghardwarecomponents:

memory:Enablesacomputertostore,atleasttemporarily,dataandprograms.massstoragedevice:Allowsacomputertopermanentlyretainlargeamountsofdata.Commonmassstoragedevicesincludediskdrivesandtapedrives.

inputdevice:Usuallyakeyboardandmouse,theinputdeviceistheconduitthroughwhichdataandinstructionsenteracomputer.outputdevice:Adisplayscreen,printer,orotherdevicethatletsyouseewhatthecomputerhasaccomplished.centralprocessingunit(CPU):Theheartofthecomputer,thisisthecomponentthatactuallyexecutesinstructions.Inadditiontothesecomponents,manyothersmakeitpossibleforthebasiccomponentstoworktogetherefficiently.Forexample,everycomputerrequiresabusthattransmitsdatafromonepartofthecomputertoanother.Computerscanbegenerallyclassifiedbysizeandpowerasfollows,thoughthereisconsiderableoverlap:personalcomputer:Asmall,single-usercomputerbasedonamicroprocessor.Inadditiontothemicroprocessor,apersonalcomputerhasakeyboardforenteringdata,amonitorfordisplayinginformation,andastoragedeviceforsavingdata.workstation:Apowerful,single-usercomputer.Aworkstationislikeapersonalcomputer,butithasamorepowerfulmicroprocessorandahigher-qualitymonitor.

minicomputer:Amulti-usercomputercapableofsupportingfrom10tohundredsofuserssimultaneously.mainframe:Apowerfulmulti-usercomputercapableofsupportingmanyhundredsorthousandsofuserssimultaneously.

supercomputer:Anextremelyfastcomputerthatcanperformhundredsofmillionsofinstructionspersecond.什么是计算机？

一个可编制程序的机器。计算机的二种主要特性是:它响应一个具体的指令为一个明确定义的方式.现代计算机是电子和数字化的。现有机器--电线，晶体管和电路--被称为硬件；指令和数据被称为软件。

所有通用计算机要求以下硬件元件:

物理内存：使计算机,至少临时地,存放数据和节目。一个可编制程序的机器。计算机的二种大容量存储器设备:允许计算机永久地保存很多数据。大容量存储器设备普遍包括驱动器和磁盘驱动器。

输入设备:通常是键盘鼠标,输入设备是数据和指令进入计算机的途径。

输出设备:显示器、打印机,或其他可以让您看到计算机完成了什么的设备。中央处理单元(CPU):计算机的心脏部分，是实际上执行指令的部件。除了这些部件,使得许多其他的基本部件一起实现高效率地工作成为可能。例如,要求一个巴士传送一个计算机上的一部分数据到另外的巴士上去.电脑根据体积和重量大致分类如下,虽然有有可能的交叉：个人计算机（PC机）:一个小的、单用户的电脑微处理器.除微处理器之外,一台个人计算机有一个键盘用来输入数据,一个显示器用来显示信息,还有存贮设备用来保存数据。工作站:一个强大的、单用户计算机.就是一台个人计算机,但它有个更强大的微处理器和更优质的显示器。·小型机:多用户电脑，可支持10到上百用户同步.

·主机:一个强大的多用户电脑，可支持多用户或成百上千的用户同步.

·大型机:一个非常快的计算机，能每秒响应亿万个指令.Discusstogetherandthendecidewhichkindofcomputeryouwouldliketobuyforyourschool.DiscussionA:Lookatthiscomputer.Ithasbeengivenasmallermonitor.B:That’sgoodbecausewecanthenhavemorecomputersintheschool.DoesithavetheInternetaswell?Sampledialogue:A:Youcanhaveitfittedbutitisnotincludedintheprice.Nowlookatthisone.Bothasmallmonitorandaflatscreenhavebeenincluded.ItcanbejoinedtotheInternetstraightawayandithasbeengivenalargeharddisccapacity.That’sgoodofcourse.B:Doyouthinkweshouldbuylaptopcomputersforourschool?Theyaremoreusefulbecausetheycanbemovedfromroomtoroom.Theschoolwouldnotneedtoprovideaspecialroomforcomputers.Theyarealsosmallerandcanbestoredawaymoreeasily.Buttheyhaveprovedtobemuchmoreexpensivethanapersonalcomputer.A:Yes,thatiswhytheprincipaltoldmewecouldnotbuythem.Hewouldnotbeabletoaffordenoughfortheschoo