Unit-3-Security-教学讲解课件

Unit3SecurityTheLandoftheLock

byBobGreeneNoonepickedupandpocketedanythinglostontheroad,whilenofamilyhadtheneedtoboltthedoorsatnight路不拾遗，夜不闭户War911OnthemorningofSeptember11,2001,19Islamicextremistshijackedfourcommercialpassengerjetairliners.TwooftheairlinerswerecrashedintotheWorldTradeCenterinNewYorkCity.A3rdairlinerwascrashedintothePentagon.The4thaircraftcrashedintoafieldinruralSomersetCounty,Pennsylvania.Inadditiontothe19hijackers,2,973peopledied;another24aremissingandpresumeddead.GunshotFightBurglaryCrimeAmericancampusshootingVirginiaTechMassacre:OnApril17th,2007,a23-year-oldstudent,killed32peopleintheshootingrampageattheVirginiaPolytechnicInstitute.LittletonMassacre:OnApril20th,1999,twoteenagestudentsopenedfireonclassmatesandteachersintheirsuburbanDenverschool,killing15peopleincludingthemselves.SomeSecurityMeasuresinAncientTimeTheGreatWallWhatistheoriginalreasontobuildTheGreatWall?CastleBuiltinplaceswheretheycouldbeeasilydefended.Usuallysurroundedbyaprotectivemoat.SomeSecurityMeasuresinAncientTimeAirportSecurityStrengthenedaftertheterroristattacksonSeptember11,2001SomeSecurityMeasuresinModernTimeLockSomeSecurityMeasuresinModernTimedead-boltlockssecuritychainselectronicalarmsystemstripwiresslidingglassdoorswithsteelbarsaccesscardselectronicX-rayequipmentelectronicfriskershigh-intensitylightrapewhistles防盗门防护链电子报警系统触发式报警器装有钢条的玻璃滑门通行卡电子透视装置电子搜查器强光源防暴口哨SecuritySystemsinModernTimeCrimePrevention:Youmaydiscussthefollowingquestionswithyourpartners.Howtoprotectyourselfwhilewalkingatnight?(seeSafeTips)Howtoprotectyourfamilyfromburglaries?Howtoprotectyourselfwhenusingabank’sautomatedtellermachine?Avoidwalkingorrunningaloneatnight.Alwayswalkinwell-lightedareas.Avoidtheuseofshortcuts.Keepawayfromlargebushesordoorwayswheresomeonecouldbelurking.Ifsomeoneinavehiclestopsandasksfordirections,answerfromadistance.Donotapproachthevehicle.Iffollowed,goimmediatelytoanareawithlightsandpeople.Ifneeded,turnaroundandwalkintheoppositedirection.SafeTips:While-readingTasksInterpretthetitleTheLandoftheLockinyourownwordsinEnglish.Scanthetextandunderlinesentencescontainingtheword“lock”orthewordroot“lock”.(seenextpage)…thedoorwasclosedbutnotlocked(para1)…doorsdonotstayunlocked(para2)Ithasbeenreplacedbydead-boltlocks…(para4)ThelockisanewsymbolofAmerica.(para6)…apictureofachild’sbicyclewiththenow-usualpadlockattachedtoit…(para6)…thetransformationfromtheLandoftheFreetotheLandoftheLock(para7)…wedevisewaystolockthefearout(para16)Wemayhavelockedtheevilsout,butinsodoingwehavelockedourselvesin.(para18)While-readingTasksOpening(1-3)Body(4-15)Conclusion(16-19)TextOrganizationInAmerica,theeraofleavingthefrontdooronthelatchhasdrawntoaclose.Asaresultofthenewatmosphereoffearanddistrust,securitydevices,invariedforms,areputtouse.Bylockingourfearsout,webecomeprisonersofourownmaking.Body:Inthispart,theauthoruseslotsoffactstosupporthiscentralpointofview:Americaisdeterioratingfrom“theLandoftheFree”into“themostinsecurenation”.

Couldyoufindanymoresupportingfactsinadditiontotheonethathasbeenlistedbelow?1)Doorsarenotleftunlockedeitherincitiesorinruralareas.2)Dead-boltlocks,securitychains,electronicalarmsystemsandtripwiresarewidelyinuse.3)Suburbanfamilieshavesteelbarsbuiltinslidingglassdoors.4)Smallnoticeswarningagainstburglaryarecommonlyseenpastedonthewindowsofthemostpleasantofhomes.Body:5)Accesscardsarerequiredofthosewhoworkwithmedium-to-large-sizecompanies.6)AirportsecurityuseselectronicX-rayequipmenttoguardagainstterrorism.7)Businessmenemploynewmachineslinkeduptotheirtelephonetodeterminewhetherthecalleristellingliesornot.8)Suburbanhousewiveswearrapewhistlesontheirkeychains.Body:GroupDiscussionWhatdoyouthinkhasledtodeteriorationinsecurityintheUS?IsthereasimilarprobleminChina(givesomeexamples)?Ifso,whatcanbedonetobetterthesituation?Whatdoyouunderstandbytheauthor’sremark“Wehavebecomesosmartaboutself-protectionthat,intheend,wehavealloutsmartedourselves”?LanguagePointsonthelatch:(ofadoor)closedbutnotlockedLetyourselfin;thedoorisonthelatch.如果你睡觉时我还没回来，记得门别上锁。Don’tforgettoleavethefrontdooronthelatchifyougotobedbeforeIcomeback.closeup:shut(sth.)esp.temporarilyIwantedsomuchtocloseupmystoreandgotraveling.OntheNewYear’sEveallthestoreswereclosedupinmyhometown.Otherusages:Thecuttookalongtimetocloseup.(heal)Thepoliceofficerorderedthementocloseup.(comingorbring(sth.)closertogether)Closedown:关闭、歇业Closeinon/around:包围rural&urbanThediseaseoccursmostfrequentlyinruralareas.Thequalityofurbanlivinghasbeendamagedbyexcessivenoiselevels.双重否定句：英语句子中常可见到两个表示否定意义的词连用的情况，这一现象通常称为双重否定。这种句子形式上虽为否定，实则表示强烈的肯定语气。英语双重否定句常见的有如下三种句型：1．否定词no／not等＋表示否定意义的形容词。例如：Nothingisimpossible．没有什么是不必要的。Hehasnosmallreputationasascientist．他是名气很大的科学家。Itisconflictandnotunquestioningagreementthatkeepsfreedomalive．使自由保持活力的是冲突而不是绝对的一致。双重否定句：2．否定词no／not／never等＋without…例如：Nosmokewithoutfire.［proverb］［谚］无火不起烟；无风不起浪。Nothingtobegotwithoutpainsbutpoverty.［proverb］［谚］只有贫穷是可以不劳而获的。Wecannotsucceedwithoutyourhelp.没有你们的帮助，我们就不能成功。双重否定句：3．否定词no／not／never／nobody／few等＋具有否定意义的动词或短语。例如：Thetartreplydidnotdiscomforthim．那尖刻的回答并没有使他难过。TheDolecompanysaysitisthebiggestfruitpackingcompany．Nobodydisagrees．多尔公司说它是世界上最大的水果罐头公司。没有人对此提出异议。双重否定句：英语双重否定句不仅限于以上三种句型，还有其他一些形式。如：Itisimpossiblenottodothework．否定形容词在前，而否定词在后，否定不定式I‘dreviewallthefactsofthecaseand，notinfrequently，wonderifIhadn’tmadeapoordecision．否定词后接具有否定意义的副词ButitseemednoimpossibilitytoMarconi，…否定词后接具有否定意义的名词Thereisnorulethathasnoexception．两个相同的否定词重复使用

双重否定句：statistics:collectionofinformationexpressedinnumbers1)thescienceofstatisticsStatisticsisnoteasyforthosewhoarenotgoodatnumbers.2)collectionofinformationshowninnumbersStatisticsshowthatthespreadSARShasbeenundercontrol.tranquil:calm,quiteandundisturbedVisitorsliketostayinthishotelbecauseitisbeautifulandlocatedinatranquillakearea.富人们从吵闹的市区搬到更安静而且污染少的乡村地区。Therichmovedfromthenoisyurbanareastothemoretranquilandlesspollutedruralareas.SeecompareCompare:

tranquil&calm&serenecalm:平静的；镇静的，沉着的Afteranightoffighting,thestreetsarenowcalm.She’snotverygoodatkeeping/stayingcalmindifficultsituations.serene:平静的，安宁的；安详的Shehasalovelysereneface.Whatamazesmeishissereneindifferencetoallthetroublearoundhim.era:aperiodofhistoryoralongperiodoftimeWearelivinginthecomputerera.计算机的发明标志着一个新时代的开始。Theinventionofthecomputermarkedthebeginningofanewera.hookupto:connectorattached(sth.)to(sth.else)withorasifwithahookMycomputerishookeduptotheInternet,soIcancommunicatewithmystudentsathomeviaemail.hookup:fasten…bymeansofhooksandeyesWillyouhookmeupattheback?buildin/into:

make(sth.)aspartofthestructureThecupboardsinthekitchenareallbuiltin.我们把灯安装进了床头的墙壁里。Wehavethelightsbuiltintothewalloverthebed.feature:N.1.anypartoftheface(脸面的一部分)Hermouthisherbestfeature.她的嘴是她容貌上最好看的部分。2.amarkbywhichanythingisknown;aquality(特色)Theuseofbrightcoloursisoneofthefeaturesofherpainting.V.1.giveaprominentpartto(sb/sth)(给…以显著地位，突出)Itwasindustrialexpansionthatfeaturedthelastcentury.2.togiveorhaveapart(especiallyanimportantone)(由…主演)ThatfilmfeaturesthebestoftheBritishactresses.feature:putup:

buildorerectHeputupanewfencearoundhishouse.They'reputtingupsomenewhouses.

SeenextOtherusage.Putupyourhandifyouwanttoaskaquestion.(toraise(ahand,etc.))

Heputtheposterup.(tofixonawalletc)They'reputtingupthefeesagain.(toincrease(apriceetc))He'sputtingupabravefight.(toofferorshow(resistanceetc))Hepromisedtoputupthemoneyforthescheme.(toprovide(money)forapurpose)CanyouputusupnextThursdaynight?(toprovide(abedetc)forapersoninone'shome)barrier:n.1.somethingthatcausesdifficulty

TheprogramservesasabarrierthatstopschildrenviewingunhealthyprogramsontheInternet.2.somethingputupasadefenceorprotectionThedriversloweddownasheapproachedthebarrier.Itdoesn’toccur/occurstosbtodo/that…(没有)想到…ItoccurredtomethatIwouldtravelEurope.我突然想到要旅游欧洲。Itdidn’toccurtomethatyouwouldobjecttothedecision.我没想到你会反对这个决定。Didn’titoccurtoyoutoclosethewindow?难道你没想到要关上窗子吗？Chancesarethat…:itislikely/probablethatIfyoudon’tagreetoworkextrahoursfornoextrapay,chancesarethatyouwillbedismissed.如果你好吃懒做，你就可能会变胖。Ifyoueatmoreandexerciseless,chancesarethatyouwillputonalotofweightinafewmonths.hold/keep(sb.)atbay:

prevent(anenemy,pursuers,etc.)fromcomingnearEatingorangeskeepscoldsatbay.Sheleftthelightonatnighttokeepherfearsatbay.withoutsomuchas…:

连…都没有Sheleftwithoutsomuchassayinggood-bye.notsomuchas…:我把捡到的钱还给他，他连说声谢谢都没有。Hedidn'tsomuchasthankmeforreturninghismoneyfound．sideways:

a.,ad.

to,towardsorfromthesideAlfredshothimasidewaysglance.(a.)Ifyouwouldmovesidewaystotheleft,Icangeteveryoneonthepicture.(ad.)bebathedin:

coverorenvelopasifwithliquidThefieldsandwoodswerebathedinagoldenlightatsunrise.Hewasinterviewedinaroombathedinsoftredlight.Shebathedherfeetinwarmwatertorelievethepain.with/byasmall/largemargin:GovernorBushwontheelectionbutbyasmallmargin.Withtheimprovementoftheirlivingconditions,people’sdemandforair-conditioninghasincreasesbyalargemargin.civilize:

causetoimprovefromaprimitivestageofhumansocietytoamoredevelopedoneTheRomanstriedtocivilizetheancientBritons.Manyaroughmanhasbeencivilizedbyhiswife.许多粗野的男人在妻子的开导下变得文雅了。reflection:1)athingbringingdiscreditorcriticism(followbyon)有损声誉或受指责的事Whenchildrenarecriticizedbytheirteachers,mothersoftenseeitasareflectiononthemselves.2)deeporcarefulthinking思考Aftermuchreflection,I’vecometoadecision.Afterthirtyyearsasadoctor,hisreflectionsonlifewereworthlisteningto.3)aclearindicationortheresultof反映Herachievementsa