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1、2023年中考英語(yǔ)時(shí)事熱點(diǎn)閱讀專(zhuān)練熱點(diǎn)64認(rèn)識(shí)5G及其廣泛用途一、閱讀理解1Therehasbeenalotofnewsrecentlyabout5Gbutwhatisthistechnology（技術(shù)）andhowmightitchangeourlives?Whatis5G?5Gstandsforthenextstepinthedevelopmentoftechnologytoreplace4Gsystem.EarlierGsystemsweredesignedtoimprovemobilecommunicationoperations.Thenew5Gsystemisexpectedtoa
2、llowmoreuserstodomorethingsatafasterspeed.ItwillmovewellbeyondmobilenetworktechnologytoinfluencemanymoreindustriesthanotherG”systems.Whenwill5Gbeinuse?Beforewecanalluse5G,wirelesscompaniesandphonemakerswillhavetocompleteawholenewsystem.Newphonesandcommunicationequipment（設(shè)備）mustbebuilt.Chinaisexpecte
3、dtoput5Gontothemarketsoineiimein2020,whileEuropeannationsarelikelytobuildtheirsystemsmoreslowlyovertime.In（heUSA,thefirst5G-readyphonescanbefoundinthemarketinthefirsthalfofthisyear.Thefirst5GiPhone,however,isnotexpecteduntil2020.4Gphoneswillworkon5Gnetworks,butnotat5Gspeeds.Whatcan5Gdo?Wirelessindus
4、trygroupssay5Gwillhelpthedevelopmentofthefuture“smartcities.5Gisalsoexpectedtoconnectself-drivingcarsandsupportnewtechnologies.Higher5Gspeedscouldalsohelpdoctorstocommonlydoremoteoperations（遠(yuǎn)程操作）.Factoriesandbusinessescoulduse5Gtechnologytoincreaseautomation（自動(dòng)化）andimprovethecollectionofinformation.
5、Manymorekindsofdata（數(shù)據(jù)）willbetravelingacross5Gnetworks.Muchofthedatacouldincludepersonaldetailsaboutpeople,businessesorgovernmentorganizations.Theincreaseddataflowwouldgiveinternetattackersalotmorepossibilitiestostealandmisusedata.Whatsmore,thewideruseofa5Gwirelessnetworkmeansanybreakdownofthesystem
6、wouldhavemoreseriousresults.Suchdifficultiescouldinfluencepublicsafetyaswellasworldeconomicactivity.Forexample,afailureduringadoctorsremotelyguidedoperationcouldleadtothedeathofapatient.Oranetworkbreakdowncouldcauseself-drivingcarstocrash.30.A.futureB.pastC.old31.A.offerB.offeringC.tooffer32.A.talkB
7、.tellC.say33.A.fastB.fasterC.fastest34.A.howB.whyC.what35.A.orB.toC.and36.A.possibleB.impossibleC.probably37.A.singersB.doctorsC.engineers38.A.safelyB.carefullyC.quickly三、短文漢語(yǔ)提示填空Chinaisbuilding5Gnetwork.Shanghaivice-mayor（副市長(zhǎng)）WuQingmadethefirst5Gv39.callonaHuaweiMateXphoneonMarch30,CGTNreported.Sha
8、nghaiisthefirstc40,inChinatostartatestrunofSGnetworks.About100t4l.fasterthan4Gnetworks,5Gwillhelppeopledownloadthingfaster（hanever.Itwillalsobeusedino42.areas.Self-divingcanmaybeoneoftheb43.breakthrough（突破）.Todaysselfrivingtestcarshaveonep44.Whenthecarsees”something,its45.thisinformationtoadata（數(shù)據(jù)）c
9、entertowaitfortheinstructions（指令）.However,thecarcanrunintothethingsifitd46.receiveinstructionsintime.5Gnetworkswillmakethetimethistakesshorterandthecarswillbesafer.CNNnoted.5Gcouldalsopowertheinternetofthings（loT物聯(lián)網(wǎng)）.Thismeansverybigonlinenetworkthatconnect（連換）everythingande47.Veryfastinternetspeeds
10、arethekeytorealizingit.Forexample,withloT,yourf48.willordereggsonlinewhenitnotices（hattherearenoeggsleftinside.2023年中考英語(yǔ)時(shí)事熱點(diǎn)閱讀專(zhuān)練熱點(diǎn)64認(rèn)識(shí)5G及其廣泛用途一、閱讀理解1Therehasbeenalotofnewsrecentlyabout5Gbutwhatisthistechnology（技術(shù)）andhowmightitchangeourlives?Whatis5G?5Gstandsforthenextstepinthedevelopmentoftechnology
11、toreplace4Gsystem.EarlierGsystemsweredesignedtoimprovemobilecommunicationoperations.Thenew5Gsystemisexpectedtoallowmoreuserstodomorethingsatafasterspeed.ItwillmovewellbeyondmobilenetworktechnologytoinfluencemanymoreindustriesthanotherGsystems.Whenwill5Gbeinuse?Beforewecanalluse5G,wirelesscompaniesan
12、dphonemakerswillhavetocompleteawholenewsystem.Newphonesandcommunicationequipment（設(shè)備）mustbebuilt.Chinaisexpectedtoput5Gontothemarketsometimein2020,whileEuropeannationsarelikelytobuildlheirsystemsmoreslowlyovertime.IntheUSA,thefirst5G-readyphonescanbefoundinthemarketinthefirsthalfofthisyear.Thefirst5G
13、iPhone,however,isnotexpecteduntil2020.4Gphoneswillworkon5Gnetworks,butnotat5Gspeeds.Whatcan5Gdo?Wirelessindustrygroupssay5Gwillhelpthedevelopmentofthefuture“smartcities.5Gisalsoexpectedtoconnectself-drivingcarsandsupportnewtechnologies.Higher5Gspeedscouldalsohelpdoctorstocommonlydoremoteoperations（遠(yuǎn)
14、程操作）.Factoriesandbusinessescoulduse5Gtechnologytoincreaseautomation（自動(dòng)化）andimprovethecollectionofinformation.Manymorekindsofdata（數(shù)據(jù)）willbetravelingacross5Gnetworks.Muchofthedatacouldincludepersonaldetailsaboutpeople,businessesorgovernmentorganizations.Theincreaseddataflowwouldgiveinternetattackersal
15、otmorepossibilitiestostealandmisusedata.Whatsmore,thewideruseofa5Gwirelessnetworkmeansanybreakdownofthesystemwouldhavemoreseriousresults.Suchdifficultiescouldinfluencepublicsafetyaswellasworldeconomicactivity.Forexample,afailureduringadoctorsremotelyguidedoperationcouldleadtothedeathofapatient.Orane
16、tworkbreakdowncouldcauseself-drivingcarstocrash.1. Thewritingpurposeofthepassageisto.A. introducesmartcitiesB.introducethenew5GtechnologyC.tellus5GtechnologyisnotsafeD.encouragemorepeopletobuy5Gphones2. Whichofthefollowingexpressionscanbethesubtitleofparagraph5?A. Howwill5Gsystemschangetheworld?B. H
17、owwillthedatabeused?C. Whatarethesafetyrisks?D. Whatkindofdatacannetworkscollect?3. WhichofthefollowingexpressionsisNotTrueaccordingtothispassage?A. Userscandomanythingsatafasterspeedon5Gnetworks.B. 5Gnetworksdonotsupport4Gphones.C. 5Gtechnologycanbeusedtocollectalargeamountofinformation.D. 5Gdevelo
18、psmoreslowlyinEuropeancountriesthaninChina.4. Whatcanwcinfcr（推斷）fromthepassage?A. Thenetworkbreakdownmayleadtosomeseriousresults.B. Peoplecanbuythefirst5GPhonein2020inAmerica.C. Thenew5Gsystemwillinfluencepublicsafetyaswellasworldeconomicactivity.D. 5Gtechnologymayimprovepeoplesself-drivingexperienc
19、e.【答案】BCBD【解析】本文圍繞“什么是5G；何時(shí)開(kāi)始使用：能做什么；安全風(fēng)險(xiǎn)是什么等四方面介紹5G技術(shù)。1. 主旨大意題。根據(jù)第一*段Therehasbeenalotofnewsrecentlyabout5G,butwhatisthistechnologyandhowmightitchangeourlivcs5G這項(xiàng)技術(shù)是什么？它將如何改變我們的生活；可知，這篇文章的寫(xiě)作目的是介紹新的5G技術(shù)；故選B。2. 推理判斷題。根據(jù)第五段u.Suchdifficultiescouldinfluencepublicsafetyaswellasworldeconomic數(shù)據(jù)可能被竊取和濫用、系統(tǒng)的任
20、何故障都將產(chǎn)生更嚴(yán)重的后果，這些困難可能影響公共安全和世界經(jīng)濟(jì)；可知，本段講述5G技術(shù)面臨的安全問(wèn)題；故選C。3. 推理判斷題。根據(jù)第三段“4Gphoneswillworkon5Gnetworks,butnotat5Gspeeds可知，4G手機(jī)將在5G網(wǎng)絡(luò)上運(yùn)行，選項(xiàng)B表述錯(cuò)誤；故選B。4. 推理判斷題。根據(jù)第四段5Gisalsoexpectedtoconnectself-drivingcarsandsupportnewtechnologies”5G還將連接自動(dòng)駕駛汽車(chē)并支持新技術(shù)；可知，5G技術(shù)可以改善人們的自駕體驗(yàn)；故選D。2Chinaisrunningaheadin5G.InMarch,
21、2019,theShanghaiHongqiaoRailwayStationbecameworldsfirst5Grailwaystation.Now,ittakesonly20secondstodownloadalongmoviethere.Wearemovingcloserandclosertothe5Gworld.However,thenewtechnologyisstillstrangetomostofus.Whalis5G,afterall?Alfirst,5Gisfast.5Gwillbemuchfasterthantodays4Gnetworks!Thefirst5Gmodem（
22、貓，調(diào)制解調(diào)器）oftheITcompanyQualcommsupportsspeedsof叩to5Gigabytes（千兆字節(jié)）persecond.Mostofushaveneverexperiencedanythingclosetothatspeed.Andweareonlytalkingaboutthefirstgeneration（*代）of5Gmodems.Futuremodelsarelikelytobeevenfaster.But5Gisnotallaboutspeed.Haveyoueverbeentoalargeeventwhereyourdata（數(shù)據(jù)）connection
23、sloweddown?Thatisbecause4Gnetworkscanonlysupportacertainnumberofdevices（設(shè)置）persquaremeter.5Gnetworkswillbeabletodomuchbetter.Theycansupportuptoamilliondevicespersquarekilometer.Now.youbegintounderstandwhy5Gisahugechangeover4G.Thetechnologyisnotjustforthesmartphones.Ithasastronginfluence（影響）oneveryco
24、nnecteddevice.With5G,self-drivingcarswillbeabletocommunicatewiththeworldaround（hemasquicklyaspossible.Wearables,Pcsandsmarthomedeviceswillbeabletoimproveaswell.Areyoulookingforwardtothat5Gworldnow?5. Eachofthefollowingismentionedabout5GEXCEPT.A. thefirstplacewhere5Gisusedintheworldthespeedofusing5Gt
25、odownloadB. thewayof5GspreadingParagraph4showstheadvantagesof5Gby.A. usingdifferentadvicecomparing5Gwith4GB. somedataof5GnetworksHowmanyfieldsofusing5Gdocsthepassagetclius?A. Three.B.Four.C.FiveFromthepassage,whichofthefollowingisNOTTRUE?A. 5Gtechnologyiscloserandclosertous.B. 5Gself-drivingcarswill
26、becheaperthananyothercars.C. ITcompanyQualcommproducedthefirstgenerationof5Gmodems.6. Whatsthebesttitleforthepassage?A. Whats5G?B.Howis5Gused?C.Is5Ggoodorbad?【答案】CBCBA【解析】短文通過(guò)與4G網(wǎng)絡(luò)作對(duì)比，介紹了5G網(wǎng)絡(luò)的優(yōu)勢(shì)及5G網(wǎng)絡(luò)的一些應(yīng)用領(lǐng)域：智能手機(jī)、自動(dòng)駕駛汽車(chē)、可穿戴設(shè)備、個(gè)人電腦和智能家庭設(shè)備等。5. 推理判斷題。根據(jù)第一段“theShanghaiHongqiaoRailwayStationbecameworldsfi
27、rst5Grailwaystation介紹全球首個(gè)使用5G的地方上海虹橋火車(chē)站；Now,ittakesonly20secondstodownloadalongmoviethere介紹使用5G下載的速度；文中沒(méi)有介紹5G傳播。故選C。6. 推理判斷題。根據(jù)第四段可知對(duì)比4G和5G網(wǎng)絡(luò)每平方米支持設(shè)備的數(shù)量，說(shuō)明5G的優(yōu)勢(shì)。故選B。7. 推理判斷題。根據(jù)第五段Thetechnologyisnotjustforthesmartphones.Ithasastronginfluenceoneveryconnecteddevice.With5Gself-drivingcarswillbeabletocom
28、municatewiththeworldaroundthemasquicklyaspossible.Wearables,Pcsandsmarthomedeviceswillbeabletoimproveaswell.這項(xiàng)技術(shù)適用于智能手機(jī)、自動(dòng)駕駛汽車(chē)、可穿戴設(shè)備、個(gè)人電腦和智能家庭設(shè)備等五個(gè)五方面。故選C。8. 推理判斷題。第二段“Wearemovingcloserandclosertothe5Gvorld,可知，5G世界離我們?cè)絹?lái)越近；第三段“Thefirst5GmodemoftheITcompanyQualcommsupportsspeedsofupto5Gigabytesperseco
29、nd”可矢U,IT公司Qualcomm生產(chǎn)了第一代5G調(diào)制解調(diào)器：文中沒(méi)有提及選項(xiàng)B的信息。故選B。9. 最佳標(biāo)題。短文主要通過(guò)與4G網(wǎng)絡(luò)作對(duì)比，介紹了5G網(wǎng)絡(luò)的優(yōu)勢(shì)及5G網(wǎng)絡(luò)的些應(yīng)用領(lǐng)域，所以短文的最佳標(biāo)題應(yīng)該是“什么是5G?”。故選A。3Chinesecompaniesleadinglobal5GpatentapplicationswithHuaweitaking(hecrown,according(oareportbyIPIytics,anauthorizedpatentdatacompany.ThreecompaniesfromChinawereincludedinthetop10li
30、stof5GStandards-EssentialPatents(SEPs)familyowners,Huaweirankedfirst.ZTECorpandChinaAcademyofTelecommunicationsTechnology(CATT)grabbedfifthandninthplaces.Chinesecompaniestoppedthelistwithmost5GSEPsapplicationsincommunicationsystemsbytheendofApril2019,accountingfbr34percentoftheworldstotal.Chinesetec
31、hgiantHuaweihastakenaleadingrolebyowning15percentofSEPs,accordingtothereport“WhoIsLeadingthe5GPatentRace?SGSEPsarepatentsthatanycompanywillhavetousewhencarryingout5Gandnoonecanavoidthem.Differentfrom3Gand4Gtechnologies,5Gtechnologywillinfluencevariousindustriesandencouragetheappearanceofmanynewprodu
32、cts,servicesandindustries.Theautomotivesectorwillmostlikelybeoneofthefirstindustriestodependon5G,whichwillconnectvehiclestoothervehicles,roadsides,trafficlightsbuildingsandtheInternetaccordingtothereport.Itis5Gthatisgoingtobeahugejumpforwardfbrcommunicationsystemsbecauseonlywith5Gshigherbandwidthcan
33、anumberofapplicationsbemoreadvancedandusedbymostconsumers,saidNicolePeng,seniordirectorofthemarketresearchcompanyCanalys.As5Gtechnologyhascombinedvariousindustriesandtechnologies,thenumberof5GSEPsrosetomorethan60,0(X)globallybytheendofApril2019,thereportsaid.10. WhichonewasNOTonthetop10listof5GSEPs?
34、A. Canalys.B.Huawei.C.ZTECorp.D.CATT.11. Whatisthemainideaofthefirsttwoparagraphs?A. NocompaniescanavoidSGSEPs.B.IPIytiesisanimportantdatacompany.C.Chinesecompaniesleadthe5Gpatentrace.D.Chinaowned34%oftheworldsSGSEPsapplications.12. WhatdoesNicolePengthinkof5G?A. Variousindustrieswillbehelpfulfbr5Ga
35、lot.B.Manyapplicationswillmake5Gmoreadvanced.C.5Gwillbeusedbymanymostadvancedconsumers.D.5Gwillmakegreatprogressincommunicationsystems.13. WhichofthefollowingisTRUEaccordingtothepassage?A. 5Gwillbefirstusedbytheindustiyoftheautomotivesector.B. Variousindustriesandfarmingwillbemostlyinfluencedby5G.C.
36、 5Gwillencouragemanynewproducts,services,andindustriestoappear.D. More(han6.000SGSEPshadbeenusedbytheendofApril2019.【答案】ACDC【解析】本文是一篇說(shuō)明文。文章介紹了中國(guó)公司在全球5G專(zhuān)利應(yīng)用中處于領(lǐng)先地位，其中華為摘得桂冠，并簡(jiǎn)單介紹了5G技術(shù)的發(fā)展及其對(duì)其他領(lǐng)域產(chǎn)生的影響。7. 細(xì)節(jié)理解題。根據(jù)ThreecompaniesfromChinawereincludedinthetop10listof5GStandards-EssentialPatents(SEPs)family
37、owners,Huaweirankedfirst.ZTECorpandChinaAcademyofTelecommunicationsTechnology(CATT)grabbedfifthandninthplaces.,可知，進(jìn)入5G核心專(zhuān)利榜單的有華為、中興(ZTECorp)和中國(guó)電信科技研究院（CATT）o故選A。8. 主旨大意題。根據(jù)Chinesecompaniesleadinglobal5GpatentapplicationswithHuaweitakingthecrown可知，文章前兩段主要講述以華為為首的中國(guó)企業(yè)在全球5G專(zhuān)利應(yīng)用中占據(jù)領(lǐng)先地位。故選C。9. 推理判斷題。根據(jù)Tt
38、is5Gthatisgoingtobeahugejumpforwardfbrcommunicationsystems,可知，對(duì)于通信系統(tǒng)來(lái)說(shuō)，5G將是一個(gè)巨大飛躍，也就是說(shuō)他認(rèn)為5G將在通信系統(tǒng)方面取得重大突破。故選D。10. 細(xì)節(jié)理解題。根據(jù)Differentfrom3Gand4Gtechnologies,5Gtechnologywillinfluencevariousindustriesandencouragetheappearanceofmanynewproducts,servicesandindustries?可知，5G技術(shù)將推動(dòng)許多新產(chǎn)品、服務(wù)和行業(yè)的出現(xiàn)。故選C。4Thechang
39、esinourlivesusing5G（使用5G給我們生活帶來(lái)的變化）Doyouknow5G?Ilisthefifthgeneration（代）ofmobilenetworktechnology.Thesenewnetworksarecoming.Chinajustissuedcommerciallicenses（發(fā)放商用牌照）fbr5GonJune6.ThismeansthatChinastclccomcompaniesweresoonabletooffer5Gnetworksfbrmobilephoneusers.Eachmobilenetworkgenerationisfasterand
40、morepowerfulthantheonebeforeit.IGletustalktoeachother.2Gletussendmessages.3GgaveusdataandtheInternet.And4Gmadeallofthesethingsfaster.Whatsspecialabout5G?5Ghasaveryshortdelaybetweensendingandreceivinginformation.Now,4Gtakesabout100to200milliseconds（毫秒）tosendandreceivedata.Bu（5Gwillgetitdownto1millise
41、condorlessthisisalmostreal-time.ThisbigchangewillnotonlymakeourmobileInternetfaster,butalsodeeplychangeourlives.Readontofindouthow.5G+entertainment（娛樂(lè)）5Gnetworksareabout1（X）timesfasterthan4GThismeansyoucandownloadamovieinsecondsusing5G.Also,virtualrcality（VR）gameswillbecomemorepopularwith5GTheshortd
42、elayof5Gwillmakethegamesfeelevenmorereal.5G+transportation5Gwillalsobringussaferself-drivingcars.Thesecarscansendsignals（信號(hào)）toeachother.Theyalsotalktotrafficlightsandroadsensors（傳感器）.5Gwillallowcarstoreactevenfasterthanhumandrivers.5G+smarthomes5GalsomakestheInternetofthingspossible.Internetofthings
43、isalargenetworkthatconnectseverythingtotheInternet.Smarthomesarepartofit.Forexample,yourtoastercanautomatically（自動(dòng)地）startmakingbreakfastafteryouralarmrings.Andifitssensorfeelstheairbecomingdry,asmartsprinklercouldwateryourplantsbyitself.11. WhathappenedonthesixthdayofJuneaccordingtothepassage?A. 5Gc
44、ameintouseChinaissuedcommerciallicenses.B. Mobilephoneuserscouldtalktoeachother.C. 5Gdelayedbetweensendingandreceivinginformation.12. WhatdoestheunderlinedworddelayinParagraph4probablymeaninChinese?A. 延時(shí)B.暫停C,斷開(kāi)D.卡頓5GwillchangepeopleslivesinmanywaysEXCEPT.A. entertainmentB.IransporUitionC.smarthomes
45、D.healthWhichofthefollowingisNOTtrueaccordingtothepassage?A. Wecandownloadamoviefasterwith5G.B. Humandriverscansendsignalsattrafficlights.C. Theplantscanwaterthemselvesbyasmartsprinklerwith5G.D. 5Gisfasterandmorepowerfulthan4GWhatsthemainideaofthepassage?A. Mobilephoneuserscanuse5Gnetworks.B. Eachmo
46、bilenetworkgenerationhastheirownadvantages.C. 5Gwillchangeourlivesinmanyways.D. 5Gwillbringussaferself-drivingcars.【答案】BADBC【解析】本文主要講述了第五代通訊技術(shù)會(huì)從許多方面改變?nèi)藗兊纳睢?4, 細(xì)節(jié)理解題。根據(jù)第二段中Chinajustissuedcommerciallicensesfor5GonJune64.”可知,6月6日,中國(guó)剛剛發(fā)放了5G的商用牌照。故選B。15. 詞義猜測(cè)題。根據(jù)畫(huà)線詞所在卜文“Now,4Gtakesabout100to200milliseco
47、ndstosendandreceivedata.But5Gwillgetitdownto1millisecondorless.可知，5G的速度比4G快了很多,發(fā)送和接受消息花費(fèi)的時(shí)間更短，由此可知delay”的意思是“延時(shí)”。故選A。16. 細(xì)節(jié)理解題。根據(jù)文中4t5G+entertainment；5G+transportation；5G+smarthomes可知，5G會(huì)在娛樂(lè)、交通運(yùn)輸、智能家居這三方面改變?nèi)藗兊纳睿遣话ń】捣矫?。故選D。17. 細(xì)節(jié)理解題。根據(jù)倒數(shù)第三段中“5Gwillalsobringussaferself-drivingcars.Thesecarscansend
48、signalstoeachother/可知自動(dòng)駕駛汽車(chē)可以互相發(fā)送信號(hào)，并不是人類(lèi)司機(jī)，B項(xiàng)錯(cuò)誤。故選B。18. 主旨大意題。根據(jù)第五段中ThisbigchangewillnotonlymakeourmobileInternetfaster,butalsodeeplychangeourlives.并結(jié)合全文可知，文章主要講述了5G會(huì)在許多方面改變我們的生活。故選C。5Topic4G5GSpeed4Gtakesabout100to200milliseconds（毫秒）tosendandreceiveinformation.5Gwillhelpcutdownthetimeto1milli-seco
49、ndorless.AmusementWecanjustexperiencetheVRgamesinspecialplacesonceinawhile.VRgameswillbecomemorecommonandexcitingwith5G.TrafficMostpeoplecanttrustself-drivingin4Gbecauseofunexpectedproblems.5Gwillmakeself-drivingcarshavemuchfasterreaction（反應(yīng)）than4G.SmartHomesJustasmallpartofthehousehasBlue-toothtoco
50、nnectin4GInsmarthemes,yourhomemachinescanstartworkingaheadoftime.5Gwillnotonlymakeournetworkfaster,butchangemanythingsinourlives.Althoughnoteveryonecanuse5Gnow,Chinaistryingitsbesttoleteveryoneuse5Gassoonaspossible.19. Whendidpeopleuse5GinChina?C.InJune,2020.D.Doesntknow.A. OnMay30th,2019.B.InJune,2
51、019.20. Howfasteris5Gthan4G?B.5Gisabout10timesfaster.A. 5Gisabout100-200timesfaster.C.4Gisasfastas5G.D. Thepassagedoesntmentionit.21.YoucanA.trustself-drivingin4GtotallyC.useBluetoothtoconnecteverythingin4GB. useself-drivingcarsmoresafelyin5GD. makeyourhomemachinesworkaheadoflimein4GWhichofthefollow
52、ingisTRUE?A. HuaweihelpedtheBBCuse5Gforthefirsttimeintheworld!B. 5GcannotmakeVRgamesmoreexcitingthan4G.C. 5Gwillchangeeverythinginourlives.D. Everyonecanuse5GinChinanow.22. ThispassageisprobablyfromA.anartbookA.anartbookB.asciencefictionatechnologymagazineD.asportsnewspaper【答案】BABAC【解析】本文講述了2019年5月3
53、0日上午，華為幫助BBC在世界上第一次使用5G技術(shù)進(jìn)行新聞報(bào)道。中國(guó)從2019年6月開(kāi)始使用5G。作者以表格的形式，對(duì)5G技術(shù)和4G技術(shù)的區(qū)別加以闡述。13. 細(xì)節(jié)理解題。根據(jù)第一段第3句Chinabegantouse5GinJune,2O19.,iJ知，中國(guó)人在2019年6月開(kāi)始使用5G。故選B。14. 推理判斷題。根據(jù)表格第一行Speed中4Gtakesabout100to200milliseconds（毫秒）cosendandreceiveinfonnation.5Gwillhelpcutdownthetimeto1milli-sec可知，4G發(fā)送和接收信息大約需要10（）到200毫秒，
54、而5G將只需要1毫秒，由此可知，5G比4G快大約100-200倍，故選A。15. 細(xì)節(jié)理解題。根據(jù)表格第4行中“5Gwillmakeself-drivingcarshavemuchfasterrcaction（反應(yīng)）than4G.可知，您可以在5G中更安全地使用自動(dòng)駕駛汽車(chē)；故選B。16. 細(xì)節(jié)理解題。根據(jù)第2段第1和2句OnthemorningofMay30th,2019,HuaweihelpedtheBBCuse5Gtoreportnews.Itwasthefirsttimethat5Gwastriedintheworld!可知,華為幫助英國(guó)廣播公司在世界上第一次使用5G；由此可知A正確，
55、故選A。17. 推理判斷題。本文主要講述了5G技術(shù)和4G的區(qū)別，由此可知，本文可能來(lái)自科技雜志；故選C。1. Thewritingpurposeofthepassageisto.A.introducesmartcitiesB.introducethenew5GtechnologyC.tellus5GtechnologyisnotsafeD.encouragemorepeopletobuy5Gphones2. Whichofthefollowingexpressionscanbethesubtitleofparagraph5?A. Howwill5Gsystemschangetheworld?B
56、. Howwillthedatabeused?C. Whatarethesafetyrisks?D. Whatkindofdatacannetworkscollect?3. WhichofthefollowingexpressionsisNotTrueaccordingtothispassage?A. Userscandomanythingsatafasterspeedon5Gnetworks.B. 5Gnetworksdonotsupport4Gphones.C. 5Gtechnologycanbeusedtocollectalargeamountofinformation.D. 5Gdev
57、elopsmoreslowlyinEuropeancountriesthaninChina.4. Whatcanwcinfcr（推斷）fromthepassage?A. Thenetworkbreakdownmayleadtosomeseriousresults.B. Peoplecanbuythefirst5GPhonein2020inAmerica.C. Thenew5Gsystemwillinfluencepublicsafetyaswellasworldeconomicactivity.D. 5Gtechnologymayimprovepeoplesselfdrivingexperie
58、nce.2Chinaisrunningaheadin5G.InMarch.2019,theShanghaiHongqiaoRailwayStationbecameworldsfirst5Grailwaystation.Now,ittakesonly20secondstodownloadalongmoviethere.Wearemovingcloserandclosertothe5Gworld.However,thenewtechnologyisstillstrangetomostofus.Whatis5G,afterall?Atfirst,5Gisfast.5Gwillbemuchfaster
59、thantodays4Gnetworks!Thefirst5Gmodem（貓,調(diào)制解調(diào)器）oftheITcompanyQualcommsupportsspeedsofupto5Gigabytes（千,兆字節(jié)）persecond.Mostofushaveneverexperiencedanythingclosetothatspeed.Andweareonlytalkingaboutthefirstgeneration（*代）of5Gmodems.Futuremodelsarelikelytobeevenfaster.But5Gisnotallaboutspeed.Haveyoueverbeent
60、oalargeeventwhereyourdata（數(shù)據(jù)）connectionsloweddown?Thatisbecause4Gnetworkscanonlysupportacertainnumberofdevices（設(shè)置）persquaremeter.5Gnetworkswillbeabletodomuchbetter.Theycansupportuptoamilliondevicespersquarekilometer.Oneafteranother,telecommunicationsgiantssuchasHuawei,SamsungandQualcommhaveannounced
61、theirlatestfifthgeneration（5G）productswithHuaweisMateXandSamsungsGalaxyFoldattractingmosteyeballs.Thetelecomgiantshavealsoannouccdthat5Gtechnologywouldbewidelyusedby2020,causingsomeexpertstosaythe5Gepochiscoming.Yet,whenreportingabout5G,manyreportershavedescribeditasamuchfastef,technologythan4Gwitho
62、utmentioninganyofitsotheradvantages.Asaresult,thecommonpublicideaabout5Gisthattheycoulddownloadahugemoviewithinonesecond,.Beyondthat,mostpeopleknownothingabout5G.Actually,5Gtechnologyhasmanymoreadvantagesthan4Gapartfromspeed.Accordingto3GPP,aninternationalstandardizationorganization,5Gtechnologycanb
63、eusedforatleastthreepurposesforconnectingeverything,reliability（川靠性）ofconnections,andremovingdelays.“Connectingeverything,isapropersloganfor5Gtechnology,withoutwhichtheInternetofThingswouldbeimpossible.Forexample,self-drivingcarscontainseveralkindsofsensors,suchasradar,computervision,andGPStoidentif
64、ydrivingroutes,obstaclesandroadsigns.5Gtechnologywilllinkalltheelementsofatransportationsystem,suchas（rafflelights,CCTVcamerasand,ofcourse,carstobuildupperfectcoordinationsotheycanavoidobstaclesandmoveondrivingroutes,whichwillhelpstrengthenself-drivingtechnology.Reliabilityofconnectionsisanotherkeycharacteristicof5Gtechnology,whoseusecanbespreadtootherfieldswherehighsafetystandardsarerequired.Forexample,incertainsurgeries（夕卜科手術(shù)），doctorsputnano-robotsinsideapatientsbodyandhavetokeepconstantcontrolovertherobots
2023年中考英語(yǔ)時(shí)事熱點(diǎn)閱讀專(zhuān)練 熱點(diǎn)64 認(rèn)識(shí)5G及其廣泛用途(學(xué)生版+解析版).docx
