人教版高中英语必修2教案Unit 3 Computer.docx

人教版高中英语必修2教案Unit 3 Computer.docx

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人教版高中英语必修2教案Unit3Computer

人教版高中英语必修2教案Unit3Computer

Unit3puter

Partne:

TeahingDesign（第一部分：

教学设计）

Perid1:

Asaplelessnplanfrreading

（HAI?

）

Ais

Ttalabutputer

Treadabutputer

Predures

Iaringup

aringupbtalingabutputer

Latthepituresnpage17hatarethe?

hatdthehaveinn?

es,theareputersThenhatisaputer?

AputerisaahinehihstresnledgeinitseranddesalulatinsnthatnledgeThisnledgeisstredinsbls;itisalleddataAputerusuallhasanitrtshresultsHever,seputersanspea;theseputersanbeusedfrvieail

计算机室

AputerfrequentlrequiresabtdevieThebtdevientainstheputer’speratingssteanddataputerprgrasanbeinstalledntaputerSepeplethinthatputersarelessusefulifthednthaveaessttheInternetThethinthisbeausetheInternetallstheputerstsendandreeivedataandeailarsstherld

曙光3000巨型计算机

AputerisnalstalasaneletrnidevieItusuallntainsaterialshiharetxi;theseaterialsillbeetxiastehendispsedfhenaneputerispurhasedinseplaes,lasrequirethatthestfitsasteanageentustalsbepaidfrThisisalledprdutsteardship

Inseuntriesldputersarereled（elteddn）tgetgldandtheretalsThisisdangerus,beausethispredurereleasesthetxiasteinttheaterandsil

putersbeebsletequilVerftenthearegivenaaandnenesreplaetheithintrthreeearsThisaestheprblerseputerrelingisthusnanpretstrtsendringputerstdevelpingnatinsstheanbere-usedandillntbeeasteasquil

puterargn计算机行话

puterargneansrdstdithputersandsurrundingtpisninghattheserdseananhelpunreabutputersSepepleusetheserdstipresstherpeple（Alsnnasbuzzrds）

Exaplesfargn:

Bit-Thesallestdataunit,aneitherbea“0”ra“1”

Bte-unitfdataSeealsilbte,egabte,GigabteandNibble

PU–entralPressingUnit,Anthernaefrpressr

Data-Infratinstrednaputer

Dis-Aplaetstredata

Eail-Eletrniail

GHz-GigahertzUsedfteninrretltdesribethespeedfapressrButithse24GHzpressrsfasterthan36GHznes,itislearthatitisustasalesantri

Lad-Getdatafradis

Nibble-HalfaBte

Save-Putdatanadis

RA–rand-aesser（随机存取存储器）,therethebetter

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

-rldideeb,partftheInternet

IIPre-reading

1Questiningandansering‑‑‑hatdunabutputer?

●Eletrniahineapablefperfringalulatinsandtheranipulatinsfvariustpesfdata,underthentrlfastredsetfinstrutinsTheahineitselfisthehardare;theinstrutinsaretheprgrarsftareDependingupnsize,putersarealledainfraes,iniputers,andirputersirputersinludedes-tpandprtablepersnalputers

●Aulti-funtineletrnideviethatanexeuteinstrutinstperfratas

●Adeviethataeptsinfratin,pressesit,andsuppliesanutputAputerusuallntainser,antrlunit,arithetiandlgialunits,andaeansfrinputandutput

●aprgraablehardarepnentthatisntrlledbinternallstredprgrasandthatanperfrsubstantialputatins（inludingarithetiandlgiperatins）ithuthuaninterventinAputertpiallnsistsfnerrepressingunits,erunits,andassiatedperipheralinputandutputdevies

●RelatedtautatinandeletrnidatapressingTheLibrarfngressnllassesstputer-relatedbsinHF48,QA7-76,Z2,T38,andseTranges

●aahinefrperfringalulatinsautatiall

alulatr:

anexpertatalulatin（ratperatingalulatingahines）

●Aputerisadevierahinefraingalulatinsrntrllingperatinsthatareexpressibleinnuerialrlgialtersputersarenstrutedfrpnentsthatperfrsipleell-definedfuntinsTheplexinteratinsfthesepnentsendputersiththeabilittpressinfratinIfrretlnfigured（usuallb,prgraing）aputeranbeadetrepresentseaspetfaprblerpartfassteIfaputernfiguredinthisaisgive

2Disussingandsharing‑‑‑Hhaveputershangedurlives?

Sedasn,ifuhaven’talread,u’relieltpluginttheputernetrnatingringinuridstputerterinals,rsallputersnnetedviade（adulatr/dedulatriruitfrending/dedingputerhatter）trdinartelephnelines,shuldbeasubiquitusasthetelephneitselfThe’reauhreusefulandhuanetlthanthephne,andithrprateAeriabehindthethenetrsillbeeverhere----hangingurlivesrethanantehnlgsinetheautbile

iningaputernetristhesaeasiningaunitSallsstesarelievillages,hereneebersarefralleledThelargernetrs,theSureandpuServe,frexaple,areities-annus,fullflifeandevents,butdiffiulttfitint

IIIReading

1ListeningandreadingtthererdingfthetextHAI?

Turntpage18andlistenandreadtthererdingfthetextPaattentintthepauses,prnuniatinandintnatinfthenativereader

2Readingaludandunderliningexpressins

NearetreadthetextneagainandunderlinealltheexpressinsinthetextPutthedninturntebafterlassasher

llatinsfrHAI?

beginas…,aalulatingahine,bebuiltas…,fllinstrutinsfr…,sundsiple,atthetie,atehnlgialrevlutin,riteab,ae…r,slveprbles,beehuge,hadartifiialintelligene,gbat…,thesizef…,gb,hangesize,beesallandthin,getqui,standtherebneself,bennetedb…,shareinfratinb…,talt…,bring…int…,dealith…,uniateith…,servethehuanrae

3Reading,identifingandsettling

Attentin,please!

ItistietsithetextneretieandidentifthediffiultsentenesTranalzingthestruturesfthediffiultsentenesanddisusstheangurgrupebersuaalsputurquestinstefrhelp

hat（nline）（在线）聊天

ThatisttalabutrdinarthingsthatarentveriprtantuanhattnepersnrtanpeplePeplealsusethisrdnfrpartsftheInternethereeantalithandifferentpepleatthesaetieUsuall,uhatntheinternetinahatrressagingservielieAL（Aeriann-Line）Instantessenger（AI）,ahessenger,rSNessenger

4Readingandtransferring

Santhetextfrinfratintpletethetablebel,desribingthedevelpentfputer

In1642

In1822

In1936

In1960s

In1970s

IVlsingdnbdingprehendingexerises

Turntpage18andinpairsdtheprehendingexerisesN1and2

Perid2:

AsaplelessnplanfrLearningabutLanguage

（ThePresentPerfetPassiveVie）

Ais

TlearntuseThePresentPerfetPassiveVie

Tdisverusefulrdsandexpressin

Tdisverusefulstrutures

Predures

Iaringupbreadingtthetape

Tbeginith,turntpage18,listeningtandreadingtthererdingfthetextHAI?

Attentingestthepausesandintnatin,asellastheprnuniatinfthereader

IIDisveringusefulrdsandexpressins

Inpairsdtheexerises1,2and3npages19and20uustfinishthein10inutes

IIILearningabutgraar

1PassiveVie—vervie

Tenserdel

PassiveSentene

SiplePresent

TheTEFLexaisgiveneversixnths

Siplepast

TheTEFLexaasgivenlastnth

SipleFuture

TheTEFLexathisearillbegivenntber1

Presentntinuus

TheTEFLexaisbeinggiveneverear

Presentperfet

TheTEFLexahasbeengiveneverearsine190

Pastperfet

TheTEFLexahadbeengivenbefretheVietnaarurred

Sipledal

TheTEFLexashuldbegiventeverFreignstudent

Pastdal

TheTEFLexashuldhavebeengiventalltenterUSlleges

2ThePresentPerfetPassiveVie

ThestruturefThePresentPerfetPassiveVieis:

have/has＋been＋~ed

IVReadingaludanddisvering

Ngbatpage18treadaludanddisverinthetextexaplesfThePresentPerfetPassiveVie

Astheearshavegneb,Ihavebeenadesallerandsaller

Sinethen,failandIhavebeenusedbbillinsfpepletdealithinfratinitheahtherarundtherldbtheInternet

VDisveringusefulstruture

eshalldgraarexerises1,2and3npage20

VIlsingdnbdingaquiz

rrettheistaesinthesepassiveviesentenes

Exaple:

Thehuseasbuildin1880（rret=Thehuseasbuiltin1880）

13000epleeserelaingff

2Astrilladeup

3Anideaasputtedfrardfrdisussin

4Hasthebbeengivebatuet?

banlanillbepaedffinfiveearstie

6Nthinganbehldagainste

7uralliesillbelendsupprt

8Shehasneverheardf

9Sheasbeingneddnbabus

10Sheaslettedffithafine

11Theandleasblutbthedraught

12Theriinalereledup

13Thefldaterasbeeptbabbarriers

14Theinnvenieneilladeupfrbthisne

1Theesusthavebeenbeingleftbehind

16Theldineaisbeingpulldn

17Theprtestersbeingheldbabtheplie

18Theradasblingff

19Thirtrepepleerelaidfflastee

20uraetanbehangedupverthere

Perid3:

AsaplelessnplanfrUsingLanguage

（AND—THEANDRID）

Ais

TdisussabutIT

TriteareprtabutIT

Treadabutandridsrrbts

Predures

IaringupbtalingabutIT

hatisInfratintehnlg?

Infratintehnlg（IT）rinfratinanduniatintehnlg（IT）isthetehnlgrequiredfrinfratinpressingInpartiulartheusefeletrniputersandputersftaretnvert,stre,prtet,press,transit,andretrieveinfratinfranhere,antie

IIListeningandriting

Turntpage21LatthepituresandlistentanversatinabutdifferentindsfinfratintehnlgrIT,disussandritedningrupstheadvantagesanddisadvantagesfeahind

IIISpeaingandriting

SuppseuandurpartneraregingthelphseputersfrurshlNtalabutthespeialthingseahftheputerandandriteareprtturheadaster

IVReading,underliningandspeaing

ItissaidthatputersuldbeputintandridsrrbtsReadthetextAnd—TheAndrid,underliningalltheexpressinsandthinfthefunuuldhave!

ExpressinsfrAnd—TheAndrid

partfaftballtea,neaear,gettgether,plaa