Computer-using-language課件(新人教版高中英語必修-2-unit-3)

金太陽教育Computersusinglanguage新課標(biāo)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.

優(yōu)點;優(yōu)勢;有利條件Thereareseveraladvantagesincitylife.takeadvantageof利用betoyouradvantage對……有利

disadvantage

n.

缺點,劣勢;不利條件

Languagepoints2.type

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

打字Willyoupleasetypethisletterforme?type:表示各項事物在本類中都是典型的。kind:特指在分類中能放在一起的性質(zhì)相同相似的一類事物。3.disagree(vi)常與with連用(食物,天氣等)不適合Muttondisagreeswithme.不同意;意見不同Idisagreewithyouaboutthis.不一致;不符Hisreportdisagreeswiththefact.4.personallyadv.

就自己而言;就我個人來說Shedidn’tliketheplan,but

personallyIseenothingwrongwithit.person(n)--personal(adj.)--personally(adv.)5.ina/oneway在某種程度上,從某種意義上說Inaway,hisEhewayonthe/one’sway(to)在去……的路上bytheway順便提一下

innoway決不alltheway自始自終;完全地inthisway用這種方法與inaway同義的詞組有inoneway和insomeways。容易與之混淆的詞組是intheway意為“造成阻礙”，請比較：

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

afterall

畢竟;到底;終究

1)有“別忘了”的意思2)放在句末,“雖然有前面說過的話”或“與預(yù)料中的情況相反”的意思aboveall首先;最重要的是atall根本(用于加強語氣)用于否定句,疑問句和表示條件的從句firstofall首先inall總共;總計Sheshouldhaveofferedtopay—she’samillionaire,afterall．7.withthehelpof

在……的幫助下

Withthehelpoftheteacher,IhavemaderapidprogressinmyEnglishstudy.8.watchover看守;監(jiān)視;照看Theywerewatchedoverbythreepolicemen.watchout(for)當(dāng)心;注意undertheclosewatch在嚴(yán)密的監(jiān)視下watchforsb./sth.

觀察等待keepawatchon監(jiān)視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.什么是計算機？

一個可編制程序的機器。計算機的二種主要特性是:它響應(yīng)一個具體的指令為一個明確定義的方式.現(xiàn)代計算機是電子和數(shù)字化的?，F(xiàn)有機器--電線，晶體管和電路--被稱為硬件；指令和數(shù)據(jù)被稱為軟件。

所有通用計算機要求以下硬件元件:

物理內(nèi)存：使計算機,至少臨時地,存放數(shù)據(jù)和節(jié)目。一個可編制程序的機器。計算機的二種大容量存儲器設(shè)備:允許計算機永久地保存很多數(shù)據(jù)。大容量存儲器設(shè)備普遍包括驅(qū)動器和磁盤驅(qū)動器。

輸入設(shè)備:通常是鍵盤鼠標(biāo),輸入設(shè)備是數(shù)據(jù)和指令進入計算機的途徑。

輸出設(shè)備:顯示器、打印機,或其他可以讓您看到計算機完成了什么的設(shè)備。中央處理單元(CPU):計算機的心臟部分，是實際上執(zhí)行指令的部件。除了這些部件,使得許多其他的基本部件一起實現(xiàn)高效率地工作成為可能。例如,要求一個巴士傳送一個計算機上的一部分?jǐn)?shù)據(jù)到另外的巴士上去.電腦根據(jù)體積和重量大致分類如下,雖然有有可能的交叉：個人計算機（PC機）:一個小的、單用戶的電腦微處理器.除微處理器之外,一臺個人計算機有一個鍵盤用來輸入數(shù)據(jù),一個顯示器用來顯示信息,還有存貯設(shè)備用來保存數(shù)據(jù)。工作站:一個強大的、單用戶計算機.就是一臺個人計算機,但它有個更強大的微處理器和更優(yōu)質(zhì)的顯示器。·小型機:多用戶電腦，可支持10到上百用戶同步.

·主機:一個強大的多用戶電腦，可支持多用戶或成百上千的用戶同步.

·大型機:一個非常快的計算機，能每秒響應(yīng)億萬個指令.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