Unit1
Textone
1.MatchthefollowingwordswiththeirproperChinesemeanings.（中英文搭配）
printer打印机
display显示器
floppydisk软盘
motherboard主板
CPU中央处理器
mouse鼠标
memory存储器
externalmodem外部调制解调器
harddisk硬盘
CD-ROM只读光盘存储器
Texttwo
Choosethebestanswerforeachoftheblanks.（完形填空）
Whenevernewinformationisentered,itmust1somewhereinthecomputer’s2.Later,theCPUmustalsobe3togetthis
informationfrommemory.ThisiswhereRAMisneeded.TheCPUcan4writetoandreadfromRAM.RAMiscalledRandom
AccessMemory5theCPUcandodirectlytoanymemorylocationinit.TheCPUdoesnothavetolook6allofRAMtofind
thespotitneeds.ButRAMonly7thedatatemporarily.Assoonasyouswitchthecomputer8,allthatinformationdisappears
fromtheRAM.Whenyouswitchthecomputeronagain,theRAMis9,andready10anewprogramandnewdata.
A.storeB.bestoredC.storingD.stored
A.processorB.printerC.memoryD.mouse
A.easyB.capableC.goodD.able
A.bothB.tooC.alsoD.either
A.soB.thereforeC.becauseD.for
A.onB.throughC.forD.down
upon
A.takesB.operatesC.erasesD.holds
A.offB.onC.upD.down
A.fullB.empty