中考英语时事热点阅读专练 热点64 认识5G及其广泛用途学生版+解析版.docx

中考英语时事热点阅读专练 热点64 认识5G及其广泛用途学生版+解析版.docx

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中考英语时事热点阅读专练热点64认识5G及其广泛用途学生版+解析版

2023年中考英语时事热点阅读专练

热点64认识5G及其广泛用途

一、阅读理解

1

Therehasbeenalotofnewsrecentlyabout5G,butwhatisthistechnology（技术）andhowmightitchangeourlives?

Whatis5G?

5Gstandsforthenextstepinthedevelopmentoftechnologytoreplace4Gsystem.Earlier“G”systemsweredesignedtoimprovemobilecommunicationoperations.Thenew5Gsystemisexpectedtoallowmoreuserstodomorethingsatafasterspeed.Itwillmovewellbeyondmobilenetworktechnologytoinfluencemanymoreindustriesthanother“G”systems.

Whenwill5Gbeinuse?

Beforewecanalluse5G,wirelesscompaniesandphonemakerswillhavetocompleteawholenewsystem.Newphonesandcommunicationequipment（设备）mustbebuilt.Chinaisexpectedtoput5Gontothemarketsometimein2020,whileEuropeannationsarelikelytobuildtheirsystemsmoreslowlyovertime.IntheUSA,thefirst5G-readyphonescanbefoundinthemarketinthefirsthalfofthisyear.Thefirst5GiPhone,however,isnotexpecteduntil2020.4Gphoneswillworkon5Gnetworks,butnotat5Gspeeds.

Whatcan5Gdo?

Wirelessindustrygroupssay5Gwillhelpthedevelopmentofthefuture“smartcities”.5Gisalsoexpectedtoconnectself-drivingcarsandsupportnewtechnologies.Higher5Gspeedscouldalsohelpdoctorstocommonlydoremoteoperations（远程操作）.Factoriesandbusinessescoulduse5Gtechnologytoincreaseautomation（自动化）andimprovethecollectionofinformation.

________

Manymorekindsofdata（数据）willbetravelingacross5Gnetworks.Muchofthedatacouldincludepersonaldetailsaboutpeople,businessesorgovernmentorganizations.Theincreaseddataflowwouldgiveinternetattackersalotmorepossibilitiestostealandmisusedata.What’smore,thewideruseofa5Gwirelessnetworkmeansanybreakdownofthesystemwouldhavemoreseriousresults.Suchdifficultiescouldinfluencepublicsafetyaswellasworldeconomicactivity.Forexample,afailureduringadoctor’sremotelyguidedoperationcouldleadtothedeathofapatient.Oranetworkbreakdowncouldcauseself-drivingcarstocrash.

1.Thewritingpurposeofthepassageisto________.

A.introduce“smartcities”B.introducethenew5Gtechnology

C.tellus5GtechnologyisnotsafeD.encouragemorepeopletobuy5Gphones

2.Whichofthefollowingexpressionscanbethesubtitleofparagraph5?

A.Howwill5Gsystemschangetheworld?

B.Howwillthedatabeused?

C.Whatarethesafetyrisks?

D.Whatkindofdatacannetworkscollect?

3.WhichofthefollowingexpressionsisNotTrueaccordingtothispassage?

A.Userscandomanythingsatafasterspeedon5Gnetworks.

B.5Gnetworksdonotsupport4Gphones.

C.5Gtechnologycanbeusedtocollectalargeamountofinformation.

D.5GdevelopsmoreslowlyinEuropeancountriesthaninChina.

4.Whatcanweinfer（推断）fromthepassage?

A.Thenetworkbreakdownmayleadtosomeseriousresults.

B.Peoplecanbuythefirst5GPhonein2020inAmerica.

C.Thenew5Gsystemwillinfluencepublicsafetyaswellasworldeconomicactivity.

D.5Gtechnologymayimprovepeople’sself-drivingexperience.

2

Chinaisrunningaheadin5G.InMarch,2019,theShanghaiHongqiaoRailwayStationbecameworld'sfirst"5Grailwaystation".Now,ittakesonly20secondstodownloadalongmoviethere.

Wearemovingcloserandclosertothe5Gworld.However,thenewtechnologyisstillstrangetomostofus.Whatis5G,afterall?

Atfirst,5Gisfast.5Gwillbemuchfasterthantoday's4Gnetworks!

Thefirst5Gmodem（猫，调制解调器）oftheITcompanyQualcommsupportsspeedsofupto5Gigabytes（千兆字节）persecond.Mostofushaveneverexperiencedanythingclosetothatspeed.Andweareonlytalkingaboutthefirstgeneration（一代）of5Gmodems.Futuremodelsarelikelytobeevenfaster.

But5Gisnotallaboutspeed.Haveyoueverbeentoalargeeventwhereyourdata（数据）connectionsloweddown?

Thatisbecause4Gnetworkscanonlysupportacertainnumberofdevices（设置）persquaremeter.5Gnetworkswillbeabletodomuchbetter.Theycansupportuptoamilliondevicespersquarekilometer.

Now,youbegintounderstandwhy5Gisahugechangeover4G.Thetechnologyisnotjustforthesmartphones.Ithasastronginfluence（影响）oneveryconnecteddevice.With5G,self-drivingcarswillbeabletocommunicatewiththeworldaroundthemasquicklyaspossible.Wearables,Pcsandsmarthomedeviceswillbeabletoimproveaswell.

Areyoulookingforwardtothat5Gworldnow?

5.Eachofthefollowingismentionedabout5GEXCEPT________.

A.thefirstplacewhere5Gisusedintheworld

B.thespeedofusing5Gtodownload

C.thewayof5Gspreading

6.Paragraph4showstheadvantagesof5Gby________.

A.usingdifferentadvice

B.comparing5Gwith4G

C.somedataof5Gnetworks

7.Howmanyfieldsofusing5Gdoesthepassagetellus?

A.Three.B.Four.C.Five

8.Fromthepassage,whichofthefollowingisNOTTRUE?

A.5Gtechnologyiscloserandclosertous.

B.5Gself-drivingcarswillbecheaperthananyothercars.

C.ITcompanyQualcommproducedthefirstgenerationof5Gmodems.

9.What'sthebesttitleforthepassage?

A.What's5G?

B.Howis5Gused?

C.Is5Ggoodorbad?

3

Chinesecompaniesleadinglobal5GpatentapplicationswithHuaweitakingthecrown,accordingtoareportbyIPlytics,anauthorizedpatentdatacompany.ThreecompaniesfromChinawereincludedinthetop10listof5GStandards-EssentialPatents（SEPs）familyowners,Huaweirankedfirst.ZTECorpandChinaAcademyofTelecommunicationsTechnology（CATT）grabbedfifthandninthplaces.

Chinesecompaniestoppedthelistwithmost5GSEPsapplicationsincommunicationsystemsbytheendofApril2019,accountingfor34percentoftheworld’stotal.ChinesetechgiantHuaweihastakenaleadingrolebyowning15percentofSEPs,accordingtothereport“WhoIsLeadingthe5GPatentRace?

”

SGSEPsarepatentsthatanycompanywillhavetousewhencarryingout5Gandnoonecanavoidthem.

Differentfrom3Gand4Gtechnologies,5Gtechnologywillinfluencevariousindustriesandencouragetheappearanceofmanynewproducts,servicesandindustries.

Theautomotivesectorwillmostlikelybeoneofthefirstindustriestodependon5G,whichwillconnectvehiclestoothervehicles,roadsides,trafficlightsbuildingsandtheInternetaccordingtothereport.

“Itis5Gthatisgoingtobeahugejumpforwardforcommunicationsystemsbecauseonlywith5G’shigherbandwidthcananumberofapplicationsbemoreadvancedandusedbymostconsumers,”saidNicolePeng,seniordirectorofthemarketresearchcompanyCanalys.

As5Gtechnologyhascombinedvariousindustriesandtechnologies,thenumberof5GSEPsrosetomorethan60,000globallybytheendofApril2019,thereportsaid.

10.WhichonewasNOTonthetop10listof5GSEPs?

A.Canalys.B.Huawei.C.ZTECorp.D.CATT.

11.Whatisthemainideaofthefirsttwoparagraphs?

A.NocompaniescanavoidSGSEPs.B.IPlytiesisanimportantdatacompany.

C.Chinesecompaniesleadthe5Gpatentrace.D.Chinaowned34%oftheworld’sSGSEPsapplications.

12.WhatdoesNicolePengthinkof5G?

A.Variousindustrieswillbehelpfulfor5Galot.B.Manyapplicationswillmake5Gmoreadvanced.

C.5Gwillbeusedbymanymostadvancedconsumers.D.5Gwillmakegreatprogressincommunicationsystems.

13.WhichofthefollowingisTRUEaccordingtothepassage?

A.5Gwillbefirstusedbytheindustryoftheautomotivesector.

B.Variousindustriesandfarmingwillbemostlyinfluencedby5G.

C.5Gwillencouragemanynewproducts,services,andindustriestoappear.

D.Morethan6,000SGSEPshadbeenusedbytheendofApril2019.

4

Thechangesinourlivesusing5G

（使用5G给我们生活带来的变化）

Doyouknow5G?

Itisthefifthgeneration（代）ofmobilenetworktechnology.Thesenewnetworksarecoming.

Chinajustissuedcommerciallicenses（发放商用牌照）for5GonJune6.ThismeansthatChina’stelecomcompaniesweresoonabletooffer5Gnetworksformobilephoneusers.

Eachmobilenetworkgenerationisfasterandmorepowerfulthantheonebeforeit.1Gletustalktoeachother.2Gletussendmessages.3GgaveusdataandtheInternet.And4Gmadeallofthesethingsfaster.What’sspecialabout5G?

5Ghasaveryshortdelaybetweensendingandreceivinginformation.Now,4Gtakesabout100to200milliseconds（毫秒）tosendandreceivedata.But5Gwillgetitdownto1millisecondorless—thisisalmostreal-time.

ThisbigchangewillnotonlymakeourmobileInternetfaster,butalsodeeplychangeourlives.Readontofindouthow.

5G+entertainment（娱乐）

5Gnetworksareabout100timesfasterthan4G.Thismeansyoucandownloadamovieinsecondsusing5G.

Also,virtualreality（VR）gameswillbecomemorepopularwith5G.Theshortdelayof5Gwillmakethegamesfeelevenmorereal.

5G+transportation

5Gwillalsobringussaferself-drivingcars.Thesecarscansendsignals（信号）toeachother.Theyalsotalktotrafficlightsandroadsensors（传感器）.5Gwillallowcarstoreactevenfasterthanhumandrivers.

5G+smarthomes

5GalsomakestheInternetofthingspossible.InternetofthingsisalargenetworkthatconnectseverythingtotheInternet.Smarthomesarepartofit.

Forexample,yourtoastercanautomatically（自动地）startmakingbreakfastafteryouralarmrings.Andifitssensorfeelstheairbecomingdry,asmartsprinklercouldwateryourplantsbyitself.

14.WhathappenedonthesixthdayofJuneaccordingtothepassage?

A.5Gcameintouse

B.Chinaissuedcommerciallicenses.

C.Mobilephoneuserscouldtalktoeachother.

D.5Gdelayedbetweensendingandreceivinginformation.

15.Whatdoestheunderlinedword"delay"inParagraph4probablymeaninChinese?

A.延时B.暂停C.断开D.卡顿