專業(yè)英語第6版新課文習(xí)題答案

2/2《電子與通信技術(shù)專業(yè)英語（第6版）》新教材參考習(xí)題答案Project1KnowingtheElectronicComponents1.WriteT(True)orF(false)besidethefollowingstatementsaboutthetext.a.T；b.F；c.F；d.T；e.F；f.F；g.T；h.F；i.T；j.T;2.Matchthefollowingtermstoappropriatedefinitionorexpression.a.5;b.3;c.2;d.1;e.4.3.Fillinthemissingwordsaccordingtothetext.a.resistors;b.Capacitor;c.amagneticfield;d.onlyone;e.cathode.4.TranslatethefollowingsentencesintoChinese.a.計算機(jī)、控制系統(tǒng)和通信領(lǐng)域的現(xiàn)代進(jìn)步和電子學(xué)有著密切的關(guān)系。b.電子學(xué)領(lǐng)域里包括真空管、晶體管和集成電路等。c.盡管電阻器、電容器和電感器是形成電子電路的重要基礎(chǔ)，介紹電阻、電容及電感是非常必要的。d.電子技術(shù)在全世界發(fā)展迅速，電子工業(yè)也已做好準(zhǔn)備向前邁進(jìn)一大步。Project2Current,VoltageandResistance1.WriteT(True)orF(false)besidethefollowingstatementsaboutthetext.a.T；b.F；c.F；d.T;e.T;f.T;g.F;h.T.2.Matchthefollowingtermstoappropriatedefinitionorexpression.a.3;b.5;c.1;d.4;e.2.3.Fillinthemissingwordsaccordingtothetext.a.one,one;b.one-thousandth,one-millionth;c.ampere,resistance;d.resistance,voltage.4.TranslatethefollowingparagraphsintoChinese.電位電位差或電動勢的單位是伏特。這個單位的縮寫或符號是V。電壓以伏特為單位。1伏特等于使得1安培的電流通過1歐姆的一個電阻的電動勢。電流電流的計量單位是安培。這個基本的計量單位的縮寫或符號是A。1安培等于1秒鐘1庫侖的電子通過某一點(diǎn)的電流。電阻電阻是另一個電氣參數(shù)，這有兩個字母，一個字母“R”代表電阻這個通常的術(shù)語，而希臘字母歐米茄(Ω)代表電阻的單位歐姆。1歐姆等于提供1伏特電壓時將電流限制為1安培所需的電阻值。電導(dǎo)電導(dǎo)是電阻的倒數(shù)。電導(dǎo)的單位是西門子(S)，這是以科學(xué)家恩斯特西門子命名的。電導(dǎo)這個通常的術(shù)語的縮寫是G。5.TranslatethefollowingsentencesintoEnglish.a.Theunitinwhichvoltageismeasuredisthevolt,whichisrepresentedbythelettersymbolV.b.Theunitofcurrentistheampere，whichisrepresentedbythelettersymbolA.c.Oneohmistheamountofresistancethatwilllimitthecurrentinaconductorisoneamperewhenthevoltageappliedtotheconductorisonevolt.d.Therelationshipbetweencurrent,voltageandresistancecanberepresentedby“Ohm’sLaw”.Project3AC,DCandElectricalSignals1.WriteT(True)orF(false)besidethefollowingstatementsaboutthetext.a.F;b.F;c.F;d.T;e.T.2.Fillinthemissingwordsaccordingtothetext.a.positive,negative;b.constantat;c.steadyDC;d.cycles;e.peak-peak;3.Matchthefollowingtermstoappropriatedefinitionorexpression.a.4;b.2;c.3;d.1.Project4TransistorVoltageAmplifier1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Ta.Atransistorconsistsofthreelayersofsemiconductormaterial:athinlayerofonetypewiththeothertypeoneachside.Tb.Thecenterisbase,oneoutsidelayeristhecollector,andtheotheristheemitter.Tc.Currententerstheemitter,passesthroughthebase,andleavesviathecollector.Fd.Currentflowisalwayschangedirections.Fe.Ittakesagreatchangeofbasecurrenttocontrolarelativelylargecollectorcurrent.Itisthisabilitythatenablesthetransistortoamplify.Ff.Inthecommon-baseconnection,thesignalisintroducedintothecollector-basecircuitandextractedfromtheemitter-basecircuit.Tg.Inthecommon-emitterconnection,thesignalisintroducedintothebase-emittercircuitandextractedfromthecollector-emittercircuit.Th.Thecommon-emitterconnectionhasmoremoderateinputandoutputimpedancethanthecommon-basecircuit.2.Fillinthemissingwordsaccordingtothetext.a.Therearetwopossiblearrangements:N-typeinthemiddlewithp-typeoneachside(PNP)and_P-type_inthemiddlewithn-typeoneachside(NPN).b.Becausetheinputoremitter-basecircuithasa_low__impedanceintheorderof0.5to50ohms,andtheoutputor_collector-basecircuit_hasahighimpedanceintheorderof1000ohmstoonemegohm,thevoltageorpowergaininthistypeofconfigurationmaybeintheorderof1500.c.Theinput(base-emitter)impedanceisintherangeof_20_to_5000__ohms,andoutput(collector-emitter)impedanceisabout_50_to_50000_ohms.Powergainsintheorderof10000(orabout40db)canberealizedwiththiscircuitbecauseitprovidesbothcurrentgainandvoltagegain.d.Becausetheinputimpedanceofthetransistoris_high_andtheoutputimpedance_low_inthisconnection,thevoltagegainislessthanoneandthepowergainisusuallylowerthanthatobtainedinacommon-baseoracommon-emittercircuit.3.TranslatethesecondparagraphofthetextintoChinese.(原文第二段，詳見教材參考譯文)Project5DigitalCircuit1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Ta.Thetruthtableisusedtoshowthelogicgatefunction.Tb.ThethreemostcommonbasictypesofdigitallogicgatesaretheANDgate,theORgate,andtheNOTgate.Fc.AnimportantfunctionofNOTgateistoproducesignalinversionoraninputsignalthatisoppositeinnaturetotheoutputsignal.Td.Thethreebasictypesofdigitallogicgatesandtheflip-floparethefourcircuitsmostcommonlyemployedinsuchsystems.Fe.Eveninalargescaledigitalsystem,suchasacomputer,control,ordigital-communicationsystem,therearealotofbasicoperations,whichmustbeperformed.2.Matchthefollowingtermstoappropriatedefinitionorexpression.a.NOTgate——1.produceanoutputsignalthatisoppositeinnaturetotheinputsignab.A×B=C———2.inputAandinputBequalsoutputccA+B=C———3.eitherinputAorinputBd.Thethreebasiclogic—4.theANDgate,theORgate,andtheNOT3.Fillinthemissingwordsaccordingtothetext.Thebasiclogicgatesareclassifiedintoseventypes:ANDgate,ORgate,XORgate,NANDgate,NORgate,XNORgate,andNOTgate.b.AnimportantfunctionofNOTgateistoproducesignalinversionoranoutputsignalthatisoppositeinnaturetotheinputsignal.c.Thethreebasictypesofdigitallogicgatesandtheflip-floparethefourcircuitsmostcommonlyemployedinsuchsystems.d.TheoperationofanORgateisoftenexpressedbytheequationA+B=C.4.TranslatethefollowingparagraphintoChinese.Digitalsignalsandcircuitsarethevastandimportantsubject.Digitalsignalsarebinaryinnaturetakingonvaluesinoneoftwowell-definedranges.Thesetofbasicoperationsthatcanbeperformedondigitalsignalsisquitesmall.Thebehaviorofanydigitalsystem,(uptoandincludingthemostsophisticateddigitalcomputer)canberepresentedbyappropriatecombinationsofdigitalvariablesandthedigitaloperationsfromthissmallset.Weconcernedwithdigitalsystemvariablesthattakeononlytwovalues(binaryvariables).Weconventionallydenotethesevaluesas“0”or“1”,andthenuseaspecialsetofrulescalledBooleanalgebratosummarizethevariouswaysinwhichdigitalvariablescanbecombined.Thisalgebraandmuchofthenotationareadopteddirectlyfrommathematicallogic.Thus,“l(fā)ogicvariable”or“l(fā)ogicoperation”arecommonlyusedinplaceofdigitalvariable,ordigitaloperation.數(shù)字信號和數(shù)字電路是一門非常重要的學(xué)科。數(shù)字信號是二進(jìn)制的，其值落入兩個劃定界限的區(qū)域中的一個。對數(shù)字信號進(jìn)行基本運(yùn)算的集合非常小。任何一個數(shù)字系統(tǒng)的行為（包括最復(fù)雜的數(shù)字計算機(jī)）都可以用這個小集合里的數(shù)字變量和數(shù)字運(yùn)算的適當(dāng)組合來表示。我們關(guān)心那些只用兩種值呈現(xiàn)的數(shù)字系統(tǒng)變量（二進(jìn)制變量）。我們習(xí)慣性地用“0”和“1”表示這些值，并用一組被稱為布爾代數(shù)的特殊規(guī)則來概括數(shù)字變量的不同組合方式。這種代數(shù)和許多符號采用的是數(shù)理邏輯。因此，通常用邏輯變量或邏輯運(yùn)算來取代數(shù)字變量或數(shù)字運(yùn)算。Project6CircuitdiagramsandBlockdiagrams1.Matchthefollowingtermstoappropriatedefinitionorexpression.a.2;b.1;c.4;d.3;e.5.2.Fillinthemissingwordsaccordingtothetext.a.clearly,drawnneatly;b.testingacircuit;c.resistors;d.thedesiredstate,actualstate;e.drawneat,clear.3.TranslatethefollowingparagraphintoChinese.方框圖是通過把完整的電路分解成較小的模塊來理解（設(shè)計）電路。每個模塊執(zhí)行某一特定功能，方框圖顯示了它們是如何連接在一起的。不需要畫出每一個模塊所采用的具體元件，只需畫出其輸入和輸出。這種對待電路的方式被稱為系統(tǒng)方法。UnitIIElectronicInstrumentandProductsProject7MultimetersandItsUsage1.WriteT(true)orF(false)besidethefollowingstatementsaboutthetext.a.F;b.F;c.F;d.F;e.T;f.T.2.Fillinthemissingwordsaccordingtothetext.a.voltmeter,ammeter,ohmmeter;b.ranges,AC,DC;c.transistortesting,frequency;d.digital,analog;e.maximumgreater;f．precautions.3.TranslatethefollowingparagraphintoChinese.用萬用表測量電阻數(shù)字萬用表的另一個有用的功能是歐姆表。歐姆表是測量電阻的儀表，如果電路沒有電阻，則歐姆表讀數(shù)為0，如果電路斷開，則歐姆表讀數(shù)為無窮大。Project8DigitalOscilloscope1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Fa.Whenitcomestodebugginganddesign,mostengineerstodayuseanalogoscilloscopes.Tb.Therearethreeprimaryoscilloscopesystems:vertical,horizontalandtriggersystems.Tc.Meanwhile,amedicalresearchermightuseanoscilloscopetomeasurebrainwaves.Fd.Thereisnoapplicationsforthispowerfulinstrument.Fe.Simplyput,anoscilloscopemeasuresvoltagewaves.Onanoscilloscopescreen,voltageisdisplayedverticallyontheXaxisandtimeisrepresentedhorizontallyontheYaxis.2.Fillinthemissingwordsaccordingtothetext.a.Therearetwotypesofoscilloscopes:analoganddigital.b.Whenitcomestodebugginganddesign,mostengineerstodayusedigitaloscilloscopes.c.Anddigitaloscilloscopesgenerallyfallintofivecategories.d.Therearethreeprimaryoscilloscopesystems:vertical,horizontal，andtriggersystems.e.Whenitcomestochoosingtherightoscilloscope,thereareanumberoffactorstoconsider,includingbandwidth,waveformcapturerate,samplerate,risetimeandtriggeringcapabilities.3.TranslatethefollowingparagraphintoChinese.Howdoesanoscilloscopework?Therearethreeprimaryoscilloscopesystems:vertical,horizontalandtriggersystems.Together,thesesystemsprovideinformationabouttheelectricalsignal,sotheoscilloscopecanaccuratelyreconstructit.Thisallowstheusertodeterminetheintegrity,predictability,andreliabilityofthesesignalsfortheirapplication.(原文第八段，詳見教材參考譯文)Project9Virtualinstruments1.WriteT(True)orF(false)besidethefollowingstatementsaboutthetext.a.F;b.F;c.F;d.T;e.T.2.Fillinthemissingwordsaccordingtothetext.a.realorimaginaryinstruments;b.virtualinstruments;c.softwaresolution；d.alow-cost,moderate-throughput；e.virtualinstrumentation，processors,buses.3.TranslatethefollowingsentencesintoChinese.a.簡單的虛擬測量儀器只是獲取和分析數(shù)據(jù)，但更復(fù)雜的虛擬儀器能與物體進(jìn)行雙向通信。b.在性能方面，LabVIEW包含一個為CPU平臺生成本地代碼的實(shí)際的編譯器，它編譯圖形代碼，而不僅僅是轉(zhuǎn)換。Project10Smartphone1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Ta.ThefirstsmartphonewasIBM'sSimon,whichwaspresentedasaconceptdeviceatthe1992COMDEXcomputertradeshow.Tb.Smartphonesallowindividualuserstoinstall,configure,andrunapplicationsoftheirchoosing.Fc.Ifthatphonewereasmartphone,youcouldn'tinstallanycompatiblecalendarapplicationyoulike.Fd.Walletfeaturesdonotallowuserstosavecreditcardinformationontheirphonestousewhenpurchasingitemsatretailstores.2.Fillinthemissingwordsaccordingtothetext.a.BlackBerryreleaseditsfirstsmartphonesintheemailsandfaxes,andtheybecameverypopularwithconsumersandintheenterprise.b.Asmartphoneisa

cellulartelephonewithanintegratedcomputerandotherfeaturesnotoriginallyassociatedwithtelephonessuchasanoperatingsystem,webbrowsing,andtheabilitytorunsoftwareapplications.c.Oneofthemostimportantelementsofasmartphoneisitsconnectiontoanappstore.d.Third-party

wearable

devices,suchassmartwatches,canconnectwithasmartphonetomonitoranindividual'shealthstatistics,suchasheartrate,andsendinformationtobeaggregatedonthephone.3.TranslatethefollowingparagraphintoChinese.Asmartphoneisa

cellulartelephonewithanintegratedcomputerandotherfeaturesnotoriginallyassociatedwithtelephonessuchasanoperatingsystem,

webbrowsing,andtheabilitytorunsoftwareapplications.Smartphonescanbeusedbyindividualsinbothaconsumerand

a

business

context,andarenowalmostintegraltoeverydaymodernlife.Manyconsumersusetheirsmartphonestoengagewithfriendsandfamilyonsocialmedia.SocialmediaplatformssuchasFacebook,TwitterandLinkedInallhavemobileappsthatausercandownloadfromtheirphone's

appstore.Theseappsmakeit

possible

forsmartphoneuserstopostpersonalupdatesandphotoswhileonthego.(原文第四段，詳見教材參考譯文)Project11LCD(LiquidCrystalDisplay)1.WriteT(True)orF(false)besidethefollowingstatementsaboutthetext.a.T;b.F;c.T;d.F;e.T;f.T;g.T.2.Fillinthemissingwordsaccordingtothetext.a.electronicvisualdisplay,thelightmodulatingproperties;b.transmit,change;c.solid,liquidorgaseous;d.orientation;f.Passivematrix,activematrix.3.TranslatethefollowingparagraphintoChinese.固體之所以表現(xiàn)為這樣是因?yàn)?，它們的分子總是保持自己的方向，并保持相對位置不變。液體中的分子則正好相反：在液體里它們可以改變方向并向任何地方移動。但也有一些物質(zhì)，它們可以以一個奇怪的狀態(tài)存在，這種狀態(tài)有點(diǎn)兒像液體，又有點(diǎn)像固體。當(dāng)它們在這種狀態(tài)下，它們的分子就傾向于保持自己的方向，就像一個固體的分子，但也到處移動到不同的位置，就像液體中的分子。這意味著液晶既不是固體也不是液體。這就是為什么最終它們有一個看似矛盾的名字的原因。Project12NotebookComputer1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Fa.Anotebookcomputertypicallyweighsmorethan5poundsandis3inchesormoreinthickness.Tb.Solidstatedrives(SSDs)cangiveahugeperformanceboostoverthetraditionalmechanicalharddrives(HDDs).Fc.Notebooksuseonlyoneapproachforintegratingamouseintothekeyboard.Td.Ifyourtasksmainlyinvolvewordprocessingandwebsurfing,youwon'tneedafasterprocessor.Te.Ifyouintendtouseyourlaptop/notebookforwatchingoreditingHDvideo,playinggames,orneedtohavemultiplevisiblewindowsopenonthescreenatthesametime,youwillneedahigherresolutiondisplayandthelargestscreensizepossible.2.Fillinthemissingwordsaccordingtothetext.a.Anotebookcomputer,sometimescalledalaptopcomputercomputer,typicallyweighslessthan5poundsandis3inchesorlessinthickness.b.Ifyouintendtouseyourlaptop/notebookforlongoverseasflightsorinothersituationswherechargingisnotreadilyavailable,makesureyouchooseamodelwithsufficientbatterylife.c.IfyouintendtoconnecttoaTVorlargerHDMIdisplayyouwillneedanHDMIport.d.Ifyou'rebuyinganotebookoratablet,youshouldconsideradetachableormembranekeyboardifoneoftheprimaryusesofthedevicewillbewordprocessing.3.TranslatethefollowingparagraphintoChinese.Notebooksusuallycomewithdisplaysthatusethin-screentechnology.Notebooksuseseveraldifferentapproachesforintegratingamouseintothekeyboard,includingthetouchpad,thetrackball,andthepointingstick.Aserialportalsoallowsaregularmousetobeattached.ThePCCardisinsertablehardwareforaddingamodemornetworkinterfacecardtoanotebook.CD-ROManddigitalversatilediscdrivesmaybebuilt-inorattachable.(原文第二段，詳見教材參考譯文)UnitⅢCommunicatedTechnologyProject13OpticalFiberCommunications1.WriteT(true)ofF(false)besidethefollowingstatementsaboutthetext.a.F;b.F;c.T;d.F;e.F;f.F;g.F;h.F.2.Fillinthemissingwordsaccordingtothetext.a.frequentlyachieved;b.phototransistor,photoconductors;c.digitalopticalsignal;d.signalprocessing.3.TranslatethefollowingparagraphintoChinese.廣義地說，把信息從一點(diǎn)傳送到另一點(diǎn)就稱為通信。當(dāng)信息跨越一段距離被傳送時，就需要一個通信系統(tǒng)。在通信系統(tǒng)中，信息傳送是通過把信息疊加在電磁波上或?qū)﹄姶挪ㄟM(jìn)行調(diào)制來實(shí)現(xiàn)的，電磁波起著載送信號的作用。這一經(jīng)過調(diào)制的載波隨后被傳送到要求到達(dá)的目的地，在那里被接收，并且通過解調(diào)還原成原始信息。在運(yùn)用電磁載波的領(lǐng)域，高新技術(shù)得到進(jìn)一步的發(fā)展，如射頻、微波以及毫米波的頻率都被用來作為載波頻率。在通信中，也可選擇光波的頻率作為載波頻率。Project14SatelliteCommunication1.WriteT(true)orF(false)besidethefollowingstatementsaboutthetext.a.F;b.F;c.T;d.T;e.F;f.F;g.F;h.T.2.Matchthefollowingtermstoappropriatedefinitionorexpression.a.3;b.2;c.1.3.Fillinthemissingwordsaccordingtothetext.a.this;b.these,world-widecommunications;c.astation,thesatellite;d.antenna,sky.4.TranslatethefollowingparagraphintoChinese.亞瑟·克拉克設(shè)想的衛(wèi)星通信系統(tǒng)必須開發(fā)復(fù)雜和煩瑣的地面和空間網(wǎng)絡(luò)。幸運(yùn)的是，這個問題隨著1963年和1964年同步衛(wèi)星的發(fā)射成功而消除?，F(xiàn)在的衛(wèi)星不是高速地圍繞地球運(yùn)行，而是靜止或固定在空中，目前大部分通信衛(wèi)星都被定位在相對地球靜止的軌道或被稱為“槽”的位置上。Project15WirelessFidelity（Wi-Fi）1.WriteT(True)orF(false)besidethefollowingstatementsaboutthetext.a.F;b.T;c.F;d.F.2.Fillinthemissingwordsaccordingtothetext.a.anyplace，hasslesofplugging；b.Hotspotcoverage，usingmultipleoverlapping；c.Wi-Fihotspot;d.greater,stronger.3.TranslatethefollowingparagraphintoChinese.無線相容性認(rèn)證，通常稱為Wi-Fi，它由IEEE802.11標(biāo)準(zhǔn)發(fā)展而來，是在無線通信中被廣泛應(yīng)用的先進(jìn)技術(shù)。顧名思義，Wi-Fi對無線網(wǎng)絡(luò)中的應(yīng)用程序和數(shù)據(jù)提供無線接入。Wi-Fi在發(fā)射端和接收端之間設(shè)置了許多方法來建立連接，如擴(kuò)頻、跳頻、紅外的連接和正交頻分復(fù)用。Project16GlobalPositioningSystem(GPS)1.WriteT(true)orF(false)besidethefollowingstatementsaboutthetext.a.F;b.F;c.F;d.F;e.F;f.F;g.F;h.F.2.Matchthefollowingtermstoappropriatedefinitionorexpression.a.3;b.2;c.4;d.1.3.Fillinthemissingwordsaccordingtothetext.a.satellite,receiver,twosequence;b.signal;c.distance,GPSsatellite;d.twenty-one,threesatellite.4.TranslatethefollowingparagraphintoChinese.接收機(jī)包含有一個數(shù)學(xué)模型來計算這些信息的影響，衛(wèi)星也傳播一些相關(guān)的信息以幫助接收機(jī)正確地估算傳播速度。電離層等一些原因會影響不同頻率的無線電波的速度，雙頻接收機(jī)能測量它們對信號的影響。Project17WirelessSensorNetwork1.WriteT(true)orF(false)besidethefollowingstatementsaboutthetext.a.Ｔ;b.F;c.F;d.Ｔ;e.Ｔ;f.F;g.Ｔ;h.F.2.Fillinthemissingwordsaccordingtothetext.a.nodes,conneted;b.topology,wirelessmeshnetwork;c.deployed,phenomenon;d.monitor,asmarthome,embedded.3.TranslatethefollowingparagraphintoChinese.無線傳感器網(wǎng)絡(luò)內(nèi)置“節(jié)點(diǎn)”，從幾個到幾百甚至上千，其中每個節(jié)點(diǎn)都連接到一個（有時是多個）傳感器。每一個這樣的傳感器網(wǎng)絡(luò)節(jié)點(diǎn)通常由幾部分組成：內(nèi)置天線或連接外部天線的無線收發(fā)信機(jī)、微控制器、傳感器接口電路和電源。傳感器節(jié)點(diǎn)的尺寸從鞋盒大小到一?；覊m大小不等。傳感器節(jié)點(diǎn)的成本同樣是可變的，從幾美元到數(shù)百美元不等，這取決于單個傳感器節(jié)點(diǎn)的復(fù)雜性。傳感器節(jié)點(diǎn)的尺寸和成本限制了其相應(yīng)的資源，如能源、存儲器、運(yùn)算速度和通信帶寬。無線傳感器網(wǎng)絡(luò)的拓?fù)浣Y(jié)構(gòu)，可以從一個簡單的星型網(wǎng)絡(luò)到復(fù)雜的多跳無線網(wǎng)狀網(wǎng)絡(luò)。Project185GNetwork1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Fa.5Genablesanewkindofnetworkthatisdesignedtoconnectnoteveryoneandeverythingtogetherjustincludingmachines,objects,anddevices.Tb.5Gwillbefasterandabletohandlemoreconnecteddevicesthantheexisting4GLTEnetwork,improvementsthatwillenableawaveofnewkindsoftechproducts.Fc.5Gcanenablenewservicesthatcantransformindustrieswithultra-reliable,available,high-latencylinkslikeremotecontrolofcriticalinfrastructure,vehicles,andmedicalprocedures.Td.Eventually,mostcarrierswillhaveamixofthedifferentnetworktypesthatwillenablebothbroadcoverageandfastspeeds.Te.Thefastest5Gnetworksareexpectedtobeatleast10timesfasterthan4GLTE,accordingtowirelessindustrytradegroupGSMA.2.Fillinthemissingwordsaccordingtothetext.a.5Genablesanewkindofnetworkthatisdesignedtoconnectvirtuallyeveryoneandeverythingtogetherincludingmachines,objects,anddevices.b.Broadlyspeaking,5Gisusedacrossthreemaintypesofconnectedservices,includingenhancedmobilebroadband,mission-criticalcommunication,andthemassiveIoT.c.Inadditiontomakingoursmartphonesbetter,5GmobiletechnologycanusherinnewimmersiveexperiencessuchasVRandARwithfaster,moreuniformdatarates,lowerlatency,andlowercost-per-bit.d.Therearethreedifferentmethodsforbuildinga5Gnetwork,dependingonthetypeofassetsawirelesscarrierhas:low-bandnetwork(widecoverageareabutonlyabout20%fasterthan4G),high-bandnetwork(superfastspeedsbutsignalsdon’ttravelwellandstruggletomovethroughhardsurfaces)andmid-bandnetwork(balancesspeedandcoverage).3.TranslatethefollowingparagraphintoChinese.Thefastest5Gnetworksareexpectedtobeatleast10timesfasterthan4GLTE,accordingtowirelessindustrytradegroupGSMA.Someexpertssaytheycouldeventuallybe100timesfaster.That’sfastenoughtodownloadatwo-hourmovieinfewerthan10seconds,versusaround7minuteswith4G.(原文最后一段，詳見教材參考譯文)UnitⅣAdvancedElectronicTechnologyProject19InternetofThings1.WriteT(true)orF(false)besidethefollowingstatementsaboutthetext.a.T;b.F;c.F;d.F.2.Fillinthemissingwordsaccordingtothetext.a.anantenna,transceiver,atransponder.b.identification,locationinformation.c.flowfreelyamong.d.Touchofabutton,aperson’sactivities.3.TranslatethefollowingparagraphsintoChinese.物聯(lián)網(wǎng)又名傳感網(wǎng),是指將各種信息傳感設(shè)備與互聯(lián)網(wǎng)結(jié)合起來而形成的一個巨大網(wǎng)絡(luò)，可使所有的物品與網(wǎng)絡(luò)連接，方便識別和管理。因其具有全面感知、可靠傳遞、智能處理的特點(diǎn),它被眾人認(rèn)為是繼計算機(jī)、互聯(lián)網(wǎng)、移動通信網(wǎng)之后的又一次信息產(chǎn)業(yè)浪潮。Project20ComputerSimulation1.WriteT(true)orF(false)besidethefollowingstatementsaboutthetext.a.F;b.Ｔ;c.F;d.Ｔ;e.F;f.Ｔ;g.Ｔ;h.Ｔ.2.Fillinthemissingwordsaccordingtothetext.a.scientificresearch,engineeringdesign;b.weatherforecasting,battlefield,flightprograms,humanmodels.c.impactonpassengersd.visualmodules,pseudo.3.TranslatethefollowingparagraphsintoChinese.計算機(jī)仿真似乎是分析災(zāi)難、氣候和事故的唯一選擇。相當(dāng)多的給人印象深刻的針對具有潛在威脅的災(zāi)難的計算機(jī)仿真已經(jīng)被建立，例如，地球核戰(zhàn)爭的后果、世界范圍的溫室效應(yīng)導(dǎo)致的對地球氣候和環(huán)境的災(zāi)難性的影響以及天外入侵的隕石與地球相撞的可能性等。Project21VirtualReality(VR)andAugmentedReality(AR)1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Fa.InatypicalVRformat,auserwearingahelmetwithoutastereoscopicscreenviewsanimatedimagesofasimulatedenvironment.Tb.Theillusionof""beingthere"(telepresence)iseffectedbyimagesensorsthatpickuptheuser'smovementsandadjusttheviewonthescreenaccordingly,usuallyinrealtime(theinstanttheuser'smovementtakesplace).Fc.Inapps,youmightvirtuallytourdistantlocationsasifyouwerethere.Fd.Augmentedrealityreplacesyourvision,virtualrealityaddstoit.Fe.Virtualrealityandaugmentedrealityaccomplishtwoverydifferentthingsinthesameway.2.TranslatethefollowingparagraphintoChinese.Forbothgamesandapps,virtualrealitycompletelysupersedesyoursurroundings,takingyoutootherplaces.Whereyouarephysicallydoesn'tmatter.Ingames,youmightsitinthecockpitofastarfighter.Inapps.youmightvirtuallytourdistantlocationsasifyouwerethere.Therearetonsofpossibilitiesinvirtualreality,andtheyallinvolvereplacingeverythingaroundyouwithsomethingelse.(原文倒數(shù)第二段，詳見教材參考譯文)Project22IntelligentRobot1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Fa.ThemostadvancedrobotsarethosecontrolledbyAI.Theybuildtheirabilitiesbasedhumanmanipulation.Tb.Sensorsaregettingbetter,smaller,cheaper,andeasiertointegrate.Fc.Thisself-drivingrobotcanseamlesslydeliverseveralbeveragesatonce.Itispoweredbyashort-lastingbattery(withlife8-12hrs),whichallowsittooperateonnightshiftsorpeakhours.Td.Thehumansecuritystaffcanalsoselectspotsforpatrol.Thentherobotwilltravelfromspottospotwhilecontinuallyscanningthearea.Fe.Pennyisabowlingpin-shapedfood-servicerobotenabledbyhuman.2.Fillinthemissingwordsaccordingtothetext.a.IntelligentrobotsareacombinationofAIandrobotics,whileartificialintelligencesoftwareisembeddedintherobotsystem.b.Sensorsaregettingbetter,smaller,cheaper,andeasiertointegrate.c.Pepperisahumanoidrobotdesignedtointeractwithpeople-assistthem,shareinformationwiththem,andhelpcustomersatretailstores.d.Nimboisarobotsecurityguardbasedoncutting-edgeartificialintelligencetechnologyandhasarangeofsecurityapplicationsandassetprotection.e.Promobotisarobotforbusinessthatmovesautonomouslyandcommunicateswithpeople,usingartificialintelligence.Project23Self-DrivingCar1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Fa.Whilecamerasaregoodforfindingthedistancetoanobject,theyarenothelpfulinidentifyingshapesandcolorsintheenvironment.Fb.Fortunately,self-drivingcarsalsohavehigh-techsensors,calledradars,thataremuchbetteratdeterminingthelocationofpeopleandobjectsaroundthecar.Fc.LIDARsendsvisiblelightpulsesallaroundin.Td.Bymeasuringthetraveltime