高一英语Unit3 Computer教案 新课标 人教版.docx

高一英语Unit3 Computer教案 新课标 人教版.docx

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高一英语Unit3Computer教案新课标人教版

2019-2020年高一英语Unit3Computer教案新课标人教版

PartOne:

TeachingDesign（第一部分：

教学设计）

Period1:

Asamplelessonplanforreading

（WHOAMI?

）

Aims

Totalkaboutcomputer

Toreadaboutcomputer

Procedures

I.Warmingup

Warmingupbytalkingaboutcomputer

Lookatthepicturesonpage17.Whatarethey?

Whatdotheyhaveincommon?

Yes,theyarecomputers.Thenwhatisacomputer?

Acomputerisamachinewhichstoresknowledgeinitsmemoryanddoescalculationsonthatknowledge.Thisknowledgeisstoredinsymbols;itiscalleddata.Acomputerusuallyhasamonitortoshowresults.However,somecomputerscanspeak;thesecomputerscanbeusedforvoicemail.

计算机室

Acomputerfrequentlyrequiresabootdevice.Thebootdevicecontainsthecomputer’soperatingsystemanddata.Computerprogramscanbeinstalledontoacomputer.SomepeoplethinkthatcomputersarelessusefuliftheydonothaveaccesstotheInternet.TheythinkthisbecausetheInternetallowsthecomputerstosendandreceivedataandemailacrosstheworld.

曙光3000巨型计算机

Acomputerisnowalmostalwaysanelectronicdevice.Itusuallycontainsmaterialswhicharetoxic;thesematerialswillbecometoxicwastewhendisposedof.Whenanewcomputerispurchasedinsomeplaces,lawsrequirethatthecostofitswastemanagementmustalsobepaidfor.Thisiscalledproductstewardship.

Insomecountriesoldcomputersarerecycled（melteddown）togetgoldandothermetals.Thisisdangerous,becausethisprocedurereleasesthetoxicwasteintothewaterandsoil.

Computersbecomeobsoletequickly.Veryoftentheyaregivenawayandnewonesreplacethemwithintwoorthreeyears.Thismakestheproblemworse.Computerrecyclingisthuscommon.Manyprojectstrytosendworkingcomputerstodevelopingnationssotheycanbere-usedandwillnotbecomewasteasquickly.

Computerjargon计算机行话

Computerjargonmeanswordstodowithcomputersandsurroundingtopics.Knowingwhatthesewordsmeancanhelpyouknowmoreaboutcomputers.Somepeopleusethesewordstoimpressotherpeople（Alsoknownasbuzzwords）.

Examplesofjargon:

Bit-Thesmallestdataunit,caneitherbea“0.”ora“1.”.

Byte-unitofdata.SeealsoKilobyte,Megabyte,GigabyteandNibble

CPU–CentralProcessingUnit,Anothernameforprocessor

Data-Informationstoredonacomputer

Disk-Aplacetostoredata.

Email-Electronicmail.

GHz-Gigahertz.Usedoftenincorrectlytodescribethespeedofaprocessor.Butwithsome2.4GHzprocessorsfasterthan3.6GHzones,itisclearthatitisjustasalesmantrick.

Load-Getdatafromadisk

Nibble-HalfaByte

Save-Putdataonadisk

RAM–random-accessmemory（随机存取存储器）,themorethebetter.

USB-UniversalSerialBus（通用串行总线，一种简化了插接多种附件的薄型插座）

WWW-WorldWideWeb,partoftheInternet

II.Pre-reading

1.QuestioningandansweringWhatdoyouknowaboutcomputer?

●Electronicmachinecapableofperformingcalculationsandothermanipulationsofvarioustypesofdata,underthecontrolofastoredsetofinstructions.Themachineitselfisthehardware;theinstructionsaretheprogramorsoftware.Dependinguponsize,computersarecalledmainframes,minicomputers,andmicrocomputers.Microcomputersincludedesk-topandportablepersonalcomputers.

●Amulti-functionelectronicdevicethatcanexecuteinstructionstoperformatask.

●Adevicethatacceptsinformation,processesit,andsuppliesanoutput.Acomputerusuallycontainsmemory,acontrolunit,arithmeticandlogicalunits,andameansforinputandoutput.

●aprogrammablehardwarecomponentthatiscontrolledbyinternallystoredprogramsandthatcanperformsubstantialcomputations（includingarithmeticandlogicoperations）withouthumanintervention.Acomputertypicallyconsistsofoneormoreprocessingunits,memoryunits,andassociatedperipheralinputandoutputdevices.

●Relatedtoautomationandelectronicdataprocessing.TheLibraryofCongresscommonlyclassesmostcomputer-relatedbooksinHF5548,QA75-76,Z52,T385,andsomeTKranges.

●amachineforperformingcalculationsautomatically

calculator:

anexpertatcalculation（oratoperatingcalculatingmachines）

●Acomputerisadeviceormachineformakingcalculationsorcontrollingoperationsthatareexpressibleinnumericalorlogicalterms.Computersareconstructedfromcomponentsthatperformsimplewell-definedfunctions.Thecomplexinteractionsofthesecomponentsendowcomputerswiththeabilitytoprocessinformation.Ifcorrectlyconfigured（usuallyby,programming）acomputercanbemadetorepresentsomeaspectofaproblemorpartofasystem.Ifacomputerconfiguredinthiswayisgive

2.DiscussingandsharingHowhavecomputerschangedourlives?

Somedaysoon,ifyouhaven’talready,you’relikelytoplugintothecomputernetworknationgrowinginourmidst.Computerterminals,orsmallcomputersconnectedviamodem（amodulator/demodulatorcircuitforencoding/decodingcomputerchatter）toordinarytelephonelines,shouldbeasubiquitousasthetelephoneitself.They’reamuchmoreusefulandhumanetoolthanthephone,andwithcorporateAmericabehindthemthenetworkswillbeeverywhere----changingourlivesmorethananytechnologysincetheautomobile.

Joiningacomputernetworkisthesameasjoiningacommunity.Smallsystemsarelikevillages,wherenewmembersareformallywelcomed.Thelargernetworks,theSourceandCompuServe,forexample,arecities-anonymous,fulloflifeandevents,butdifficulttofitinto.

III.Reading

1.ListeningandreadingtotherecordingofthetextWHOAMI?

Turntopage18andlistenandreadtotherecordingofthetext.Payattentionto

thepauses,pronunciationandintonationofthenativereader.

2.Readingaloudandunderliningexpressions

Nowwearetoreadthetextonceagainandunderlinealltheexpressionsinthetext.Putthemdownintoyournotebookafterclassashomework.

CollocationsfromWHOAMI?

beginas…,acalculatingmachine,bebuiltas…,followinstructionsfrom…,soundsimple,atthetime,atechnologicalrevolution,writeabook,make…work,solveproblems,becomehuge,hadartificialintelligence,gobackto…,thesizeof…,goby,changesize,becomesmallandthin,getquick,standtherebyoneself,beconnectedby…,shareinformationby…,talkto…,bring…into…,dealwith…,communicatewith…,servethehumanrace

3.Reading,identifyingandsettling

Attention,please!

Itistimetoskimthetextonemoretimeandidentifythedifficultsentences.Tryanalyzingthestructuresofthedifficultsentencesanddiscussthemamongyourgroupmembers.Youmayalsoputyourquestionstomeforhelp.

Chat（online）（在线）聊天

Tochatistotalkaboutordinarythingsthatarenotveryimportant.Youcanchattoonepersonortomanypeople.PeoplealsousethiswordnowforpartsoftheInternetwherewecantalkwithmanydifferentpeopleatthesametime.Usually,youchatontheinternetinachatroomormessagingservicelikeAOL（AmericanOn-Line）InstantMessenger（AIM）,YahooMessenger,orMSNMessenger.

4.Readingandtransferring

Scanthetextforinformationtocompletethetablebelow,describingthedevelopmentofcomputer.

In1642

In1822

In1936

In1960s

In1970s

IV.Closingdownbydoingcomprehendingexercises

Turntopage18andinpairsdothecomprehendingexercisesNo.1and2.

Period2:

AsamplelessonplanforLearningaboutLanguage

（ThePresentPerfectPassiveVoice）

Aims

TolearntouseThePresentPerfectPassiveVoice

Todiscoverusefulwordsandexpression

Todiscoverusefulstructures

Procedures

I.Warmingupbyreadingtothetape

Tobeginwith,turntopage18,listeningtoandreadingtotherecordingofthetextWHOAMI?

Attentiongoestothepausesandintonation,aswellasthepronunciationofthereader.

II.Discoveringusefulwordsandexpressions

Inpairsdotheexercises1,2and3onpages19and20.Youmustfinishthemin10minutes.

III.Learningaboutgrammar

1.PassiveVoice—Overview

TenseorModel

PassiveSentence

SimplePresent

TheTOEFLexamisgiveneverysixmonths.

Simplepast

TheTOEFLexamwasgivenlastmonth.

SimpleFuture

TheTOEFLexamthisyearwillbegivenonOctober15.

PresentContinuous

TheTOEFLexamisbeinggiveneveryyear.

Presentperfect

TheTOEFLexamhasbeengiveneveryyearsince1950.

Pastperfect

TheTOEFLexamhadbeengivenbeforetheVietnamWaroccurred.

SimpleModal

TheTOEFLexamshouldbegiventoeveryForeignstudent.

PastModal

TheTOEFLexamshouldhavebeengiventoalltoenterUScolleges.

2.ThePresentPerfectPassiveVoice

ThestructureofThePresentPerfectPassiveVoiceis:

have/has＋been＋~ed

IV.Readingaloudanddiscovering

Nowgobacktopage18toreadaloudanddiscoverinthetextexamplesofThePresentPerfectPassiveVoice.

Astheyearshavegoneby,Ihavebeenmadesmallerandsmaller.

Sincethen,myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformationwitheachotheraroundtheworldbytheInternet.

V.Discoveringusefulstructure

Weshalldogrammarexercises1,2and3onpage20.

VI.Closingdownbydoingaquiz

Correctthemistakesinthesepassivevoicesentences

Example:

Thehousewasbuildin1880.（correct=Thehousewasbuiltin1880.）

1.3000employeeswerelayingoff.

2.Astorywillmadeup.

3.Anideawasputtedforwardfordiscussion.

4.Hasthebookbeengivebacktoyouyet?

5.Mybankloanwillbepayedoffinfiveyearstime.

6.Nothingcanbeholdagainstme.

7.Ourallieswillbelendsupport.

8.Shehasneverheardof.

9.Shewasbeingknockeddownbyabus.

10.Shewaslettedoffwithafine.

11.Thecandlewasblowoutbythedraught.

12.Thecrimi