大学体验英语2unit8省公开课金奖全国赛课一等奖微课获奖课件

DepartmentofCollegeEnglishExperiencingEnglishBookTwo1/70DepartmentofCollegeEnglishUnit8ComputersandSecurity2/70Procedures

PassageAWarm-upActivitiesCultureNotesLanguagePointsDifficultSentencesSummaryFollow-upActivityAssignmentDepartmentofCollegeEnglish3/70DepartmentofCollegeEnglishPassageAYouAretheWeakestLink,Goodbye

Warm-upActivitiesWhatdoyouknowaboutcomputerviruses?(eg.name,damagepower,howtospread,howtoprotectcomputerfromthem)Haveyourcomputersbeeninfectedbyviruses?Whyorwhynot?4/70DepartmentofCollegeEnglishCultureNotes

desktop,laptopandevenhand-heldPCpersonalcomputer/portablecomputer5/70DepartmentofCollegeEnglishBrandNamesofComputersCompaq：IBM：InternationalBusinessMachineApple：Tulip：Sony：Toshiba：Philips：Samsung：6/70DepartmentofCollegeEnglishplayingcomputergamesharddisccapacitysoundcard,screen/monitorcompactspace-savingComputerTerms7/70DepartmentofCollegeEnglishComputerTerms

compatibilitymousekeyboardhardware/softwareonline/offlinedownload/uploadnetwork/website/cybertheInternet/intranet8/70DepartmentofCollegeEnglishMacroViruses

Macrovirusesarecomputervirusesthatuseanapplication'sownmacroprogramminglanguagetodistributethemselves.Thesemacroshavethepotentialtoinflictdamagetothedocumentortoothercomputersoftware.Theinfectingfilescanbemodifiedordeletedandmaynotberecoverable.9/70DepartmentofCollegeEnglishMelissa10/70DepartmentofCollegeEnglishTheLoveBugThevirusiscirculatingthroughemailandaffectingmanycustomers.Ifrun,theviruscouldoverwrite.jpg,.mp3,andotherfiletypes,andattempttosendacopyofitselftoeveryoneintherecipient'saddressbook.TheLoveBugvirusisalsocalledtheLoveletterVirus,orsimplyILoveYou.11/70DepartmentofCollegeEnglishLanguagePoints1.innocent:adj.(ofthings)harmless,knowingnothingofevilorwrong;(ofpeople)guiltlessDon’tbesoinnocentastobelieveeverythingyousee.Issheguiltyorinnocentofthecrime?12/70DepartmentofCollegeEnglishLanguagePoints2.

orso:aboutShewillbebackinadayorso.Inanotheryearorso,Lucywillhaveforgottenallabouthim.13/70DepartmentofCollegeEnglishLanguagePoints3.encounter:

vt.

1)meetorbefacedby(somethingbad,especiallyadangeroradifficulty);2)meetunexpectedly.Weencounteredaserioussetbackwhentwomembersoftheexpeditionswereinjured.Ifirstencounteredhimatsummerschool.14/70DepartmentofCollegeEnglishLanguagePoints4.unusual:

adj.notcommon;rareIt’sunusualtofinddiamondsofthissize.Earlierthiscentury,itwasunusualforwomentohaveacareer.15/70DepartmentofCollegeEnglishLanguagePoints5.infect:vt.1)fillwithdisease,germs;givediseaseto(aperson);2)Ifyourexcitement,eagernessetc.otherpeople,itmakesthembegintofeelthesameway. YoucanonlybeinfectedwithwithHIVinalimitednumberofways.Lucy’senthusiasmsooninfectedtherestoftheclass.16/70DepartmentofCollegeEnglishLanguagePoints6.transmit:vt.sendorpassfromoneperson,placeorthingtoanother.TheUSOpenwillbetransmittedviasatellite.Doyouknowthataninfectionmaybetransmittedbymosquitoes?17/70DepartmentofCollegeEnglishLanguagePoints7.cleanup:cleanthoroughlyWespentallSaturdaymorningcleaningup.Letmejustgoandcleanmyselfup.18/70DepartmentofCollegeEnglishLanguagePoints8.inplace:intherightorproperplaceHaveyougotallthelightsinplaceyet?

cf.outofplaceIfeltcompletelyoutofplaceamongallthosesmartrichpeople.19/70DepartmentofCollegeEnglishLanguagePoints9.ensure:vt.make(somethingcertain)tohappenAllnecessarystepshavebeentakentoensuretheirsafety.Hishusbandensuredthathetookallhispillseveryday.20/70DepartmentofCollegeEnglishLanguagePoints10.adequate:adj.enoughforthepurposeWithouttheproperresourcesthedepartmentcannotdoanadequatejob.Aretheparkingfacilitiesadequateforfiftycars?

21/70DepartmentofCollegeEnglishLanguagePoints11.detect:vt.findout;noticeManyformsofcancercanbecuredifdetectedearly.DoIdetectanoteofsarcasminyourvoice?

adj.detectable22/70DepartmentofCollegeEnglishLanguagePoints12.update:vt.makemoremodernorup-to-dateWeneedtoupdatethedefensiveweaponry.Thefilesneedupdating.23/70DepartmentofCollegeEnglishLanguagePoints13.considerable:adj.fairlylargeorgreatinamount,size,ordegreeHehasbeenillforaconsiderabletime.Thesunwasnowhighinthesky,andtheheatveryconsiderable.24/70DepartmentofCollegeEnglishLanguagePoints14.identify:vt.proveorshowwhoorwhatsomebodyisorsomethingisThelightwastoodimformetoidentifyher.Iidentifymyselffirst.Theywerereluctanttoidentifythemselvesfullywithanyparticularside.25/70DepartmentofCollegeEnglishLanguagePoints15.inflict:vt.give(ablow,etc);causetosufferTheywon’tletanyforeignpowerinflictanyfurtherblowsontheirnationalpride.Ourarmyisinflictingheavylossesontheenemy.26/70DepartmentofCollegeEnglishLanguagePoints16.setin:beginand(probably)continueLuckilythewoundwastreatedbeforeinfectioncouldsetin.Hemusttryandgetmygardentidiedupbeforethebadweathersetsin.27/70DepartmentofCollegeEnglishLanguagePoints17.recede:vt.(ofthing)movebackorawayThecoastrecededaswesailedaway.Theplanegraduallyrecededoutofsight.28/70DepartmentofCollegeEnglishLanguagePoints18.atrisk:indangerThediseaseisspreading,andallchildrenunder5areatrisk.Theeconomywillfallfurther,puttingmorejobsatrisk.29/70DepartmentofCollegeEnglishLanguagePoints19.moreoftenthannot:inmostcasesOnweekends,moreoftenthannot,you’dfindmyuncleatwork.Moreoftenthannotthepatientrecovers.30/70DepartmentofCollegeEnglishLanguagePoints20.comeacrossas:seemtobe(judgingfrombehaviororactions)BillClintoncameacrosstovotersas(being)honest,sincereandhard-working.Mikecameacross(tome)as(being)quiteaniceperson.31/70DepartmentofCollegeEnglishLanguagePoints21.oddadj.1)notregular,habitual,orfixed;occasional2)strange;unusualHehadsomeoddchangeinhispocket.ItisoddthatIcan’trememberMary’saddress.32/70DepartmentofCollegeEnglishLanguagePoints22.harbor:v.giveprotectionto

Thechildfledtotheharborofherfather’sarms.Thetreesharbormonkeys.33/70DepartmentofCollegeEnglishLanguagePoints23.conflict:

n.disagreement;oppositionTheconflictbetweenGreeceandTroylastedtenyears.MybrotherandIhadapersonalityconflict.34/70DepartmentofCollegeEnglishLanguagePoints24.asamatterofcourse:

asaregularhabitorusualprocedureIcheckmye-maileverymorningasamatterofcourse.35/70DepartmentofCollegeEnglish

DifficultSentences1.Itwasn’tunusualtofindhundredsofcommuterswithinonecompanyinfectedbyvirusestransmittedviaemailattachments.Asoftenthecasethatinthesamecompanyhundredsofcomputerswouldhavevirusesiftheemployeeshadopenedemailattachmentscontainingtheseviruses.36/70DepartmentofCollegeEnglishDifficultSentences2.Companiesnowrealizethatvirusesaren’t“urbanmyths”andcanhaveaseriousimpactontheiroperations.Companiesnowunderstandthatvirusesarenotmodernmade-upstories,andtheycandogreatharmtoacompany’soperations.37/70DepartmentofCollegeEnglishDifficultSentences3.WiththerapidtransmissionoffilesthroughnetworksandtheInternet,aviruscanspreadaconsiderabledistancebeforeitcanbeidentifiedandprotectedagainst.WiththefastspreadofinformationthroughnetworkedcomputersandtheInternet,aviruscanreachmanycomputersbeforeanythingcanbedoneaboutit.38/70DepartmentofCollegeEnglishDifficultSentences4.Complacencycansetinwhenthereisnoperceived“action”onthevirusfrontandnoglobalcrisisandtheimportanceofbeingvigilantaboutvirusesrecedesinyourusers’minds.Peoplemayignorevirusesandstopworryingaboutthemwhennomajorworldwideviruseshavebeenreportedrecently,andtheneedtobeveryonguardagainstvirusesifeasilyforgotten.39/70DepartmentofCollegeEnglishDifficult

Sentences5.However,theworrycomeswhenemployeesstartriskingcompanysecurityinpursuitofpersonalamusement.ButtheworryariseswhenemployeesstartbreakingthecompanysecurityrulesinordertoamuseorentertainthemselvesbydoingpersonaldownloadingfromtheInternet.40/70DepartmentofCollegeEnglishDifficult

Sentences6.

Viruswritersandhackersoftenusesuchsoftwareastheideal“kick-start”fortheirvirusdistribution.Viruswritersandpeoplewhobreakintootherpeople’scomputerfilesoftenusesuchsoftwareasthebestmeanstogettheirvirusestostartspreading.41/70DepartmentofCollegeEnglishSummary

Theweakestlinkintheprotectionofacompany'scomputersagainstvirusesistheindividualcomputeruser.Thereisastrongtendencythattheemployeesassumeitisthecompany'scomputersecurityexperts'jobtoworryaboutthevirusesandtheycanbringtheproblemundercontrol.Buteveryonemustdotheirsharetopreventviruses.Anyunsolicitedemailattachmentoranyuntestedtypeofsoftwaremaycontainavirus.42/70DepartmentofCollegeEnglishSummaryEventhebestanti-virussoftwareisnotalwayseffectiveandmustbefrequentlyupdated.Constanteducationofallemployeesaboutvirusesisthekeytovirusprevention.Nooneshouldeverbeallowedtorelaxtheirdefenses,evenifthismeansthecompanymusthavesomerulessetthatemployeesmightnotlike.43/70DepartmentofCollegeEnglishFollow-up

ActivityWatchamovieclipandtalkaboutthefunctionsofcomputersinthemodernsociety.44/70AssignmentWriteaparagraphofaround100wordsexplainingthatcompaniesshoulddomorethaninvestinanti-virussoftwaretoprotectagainstcomputerviruses.45/70Procedures

PassageBWarm-upActivitiesCultureNotesLanguagePointsDifficultSentencesSummaryFollow-upActivityAssignmentDepartmentofCollegeEnglish46/70DepartmentofCollegeEnglishPassage

B

So

Sorry

to

Bug

You

1.Howoftendoyouemailyourfriends?2.Howwouldyousolvetheproblemifyourcomputerisinflictedbyviruses?3.Whatwouldyoudoifyouaccidentallyspreadanvirus?Warm-up

Activities47/70DepartmentofCollegeEnglishCulture

NotesColorfulSkyscrapersMexicoisthelargestSpanish-speakingcountry.Thesecond-largestRomanCatholicnationintheworld.MexicoCity.Oneoftheworld'sfastest-growingmetropolitanareas.MexicoVolcanoMexico48/70DepartmentofCollegeEnglishYucatan,MexicoYucatanMayaRuins:SculptureandPyramid49/70DepartmentofCollegeEnglishTheAndromedaStrainTheMovie:Agroupofscientistsinvestigateadeadlynewalienvirusbeforeitcanspread...MichaelCrichton,authorofTheAndromedaStrain,Congo,TheGreatTrainRobbery,TheRisingSun,JurassicPark,andTheLostWorld.50/70DepartmentofCollegeEnglishThe

Homepage

Virus/v-descs/vbswg_x.shtmlHomepagewormspreadsusingOutlookApplication.Itsendsmessageswiththecontentasshowninthepictureright:Whentheattachedfileisexecuted,thewormwillsend(massmail)itselftoeachrecipientineveryaddressbook.51/70DepartmentofCollegeEnglishThe

Philippines/services/transportation/projects/manila.htmJeepneyCabandBillboardintheStreetsofthePhilippinesLightRailTransitinManila52/70DepartmentofCollegeEnglishLanguage

Points1.correspond:v.exchangeletters(with)Hefrequentlycorrespondswithhisbrother.Sheandhecorrespondedformanyyearsbeforetheymet.

53/70DepartmentofCollegeEnglishLanguage

Points2.swear:v.statefirmlyWillyouswearthatyouwerenotthere?IswearonaBibletoobservesecrecy.54/70DepartmentofCollegeEnglishLanguagePoints3.recall:v.rememberIrecallseeingaposteronhiswall.ThepicturesrecalledmebacktothedaysinAustralia.55/70DepartmentofCollegeEnglishLanguagePoints4.assume:v.takeastrueIassumeyouhaveheardthenews.Farmerswillhaveabumperharvest,assumingthattheweatherisfavorable.56/70DepartmentofCollegeEnglishLanguage

Points5.figureout:workout;understandbythinkingIjustcan’tfigureherout,she’samysterytome.Itrytofigureoutawaytodoit.57/70DepartmentofCollegeEnglishLanguage

Points6.getridof:freeoneselffrom(somethingunwanted)HowcanIgetridofworries?Shedeniedfirmly,gettingridusofthedoubt.58/70DepartmentofCollegeEnglishLanguage

Points7.delete:v.cutout(esp.somethingwrittenorprinted)Hehasdeletedhisnamefromthelist.Thepatient’shighfeverdeletedmostofhismemories.59/70DepartmentofCollegeEnglishLanguage

Points8.irony:adj.acourseofeventsorconditionwhichhastheoppositeresultfromwhatisexpected,usuallyabadresultTherewasironyinhistone.Itwasanironythatthefirehouseburned.60/70DepartmentofCollegeEnglishDifficult

Sentences1.IfeltlikethedoctorinTheAndromedaStrain;theclockwasoutracingme.Ifeltlikethedoctorinafamoussciencefictionhorrormovie;theviruswasspreadingfasterthanIcouldstopit.61/70DepartmentofCollegeEnglishDifficult

Sentences2.Eachhadafileattached,asdoom-ladenasawarhead.

Eachmessagecontainedadangerousvirusintheattachment,likeafatalbomb.62/70DepartmentofCollegeEnglishDifficult

Sentences3.Doubleargh!(Itwas)extremelyembarrassinganddisgusting!63/70DepartmentofCollegeEnglishDifficult

Sentences4.TheworstpartwasthatmanyofthepeopleIhademailedwerenewbies-subscriberswhohademailedmeforhelpinconnectionwiththiscolumn.

(tobecontinued)64/70DepartmentofCollegeEnglishDifficult

SentencesTheworstthing