题目内容：
Theword"television"derivedfromitsGreek(Tel:distant)andLatin(vision:sight)roots.Verysimplyput,itworks(1)______thisway:Throughasophisticated,systemofelectronics,televisionprovidesthecapabilityof(2)______animageintoelectronicimpulses,whichcanbesent(3)______awireorcable.Theseimpulses,whenfedintoa(4)______,canthenbeelectronicallyreconstructed(5)______thatsameimage.Traditionally,televisionhasbeena(6)______ofthemasses.Wearemostfamiliarwithbroadcasttelevisionbecauseithasbeenwithusforaboutthirty-sevenyearsinaformsimilar(7)______whatexiststoday.Duringthoseyears,ithasbeen(8)______bythebroadcastnet-works---ABC,NBC,andCBS.Thesegiantsofbroadcastinghaveactually(9)______notonlytelevisionbutour&nbs
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