14-冲刺2023年中考英语首字母填空临考押题.docxVIP

冲刺2023年中考英语首字母填空临考押题（上海专用）14

（一）

Ifyoulookaroundtheroomyouareinrightnow,you’llprobablynoticeanumberofelectronics.Butcanyouimagineiftheyallhadtobejoinedtogetherbywires?Picturethewiresnakingalongthefloor,forexample,fromyoursmartphonetoyourspeaker,orconnectingyourgamecontrollertotheputerscreen,meaningyoucouldn____1____sitmorethanacoupleofmetersawayfromit.Aworldofelectronicsconnectedbywireswouldn’tjustbeuntidy,butapossibledanger,too.That’swhereBluetoothesin.We’veallheardofit—butwhate____2____isit?

Bluetoothisamethodofshortdistancewirelessmunicationbetweenelectronicsthatmakesuseofthepowerofradiowaves.TheideawasfirstthoughtofbyDr.JanpHaartsenatSwedishmobilepanyEricssonin1994.ThingsreallysteppedupinSeptember1998whentheBluetoothSpecialInterestGroup（SIG）wassetuptodevelopands____3____thetechnology.Bluetooth1.0cameoutin1999,andayearlateritbegantobeusedinmobilephonesanddesktopputers.NowBluetoothhasbeeanincreasinglyp____4____wayofsolvingtheproblemofmoreandmoreelectronicsneedingtobeconnected.withouthavingtoconnecteverythingtogetherwithwires.

Butifyoulookattheremotecontrol（温控器）youusetochoosetheprogramonTV,youmightrightlyasky____5____whyBluetoothwassuchabigdeal.Afterall,connectingobjectswithinfraredsignals（红外信号）whichcan’tbeseenhadbeendonebefore.Theproblemwithremotecontrolsisthattheyneedtokeepwhatiscalled“lineofsight”.Ifsomethingisstandingbetweentheremotecontrolandreceiver,itwon’tw____6____.BecauseBluetoothusesradiowaves,thethingsstandinginthewayarenolongeraproblem.

Sinceitscreationinthelate1990s,thetechnologyhasbeemoreandmoreimprovedandw____7____used,withthe4billionthBluetoothobjectsshippedin2020.（326词）

答案：1.never2.exactly3.spread4.popular5.yourself6.work7.wid