第一部分　阅读理解　(75分)
Passage　1
CATV　is　a　short　way　of　saying　community　antenna　(天线)　television.　But　cable　television　is　the　term　most　people　use.　Cable　television　allows　viewers　to　receive　TV　programs　that　they　cannot　pick　up　with　their　regular　antennas.
Television　signals　do　not　follow　the　curve　(曲线)　of　the　earth.　They　travel　in　straight　lines　in　all　directions.　Signals　from　a　TV　station　move　toward　the　horizon　(水平线)　and　then　go　into　space.　If　you　live　only　a　few　miles　from　a　station,　you　may　not　get　any　picture　at　all.
CATV　began　in　1948.　People　in　places　far　from　TV　stations　shared　the　cost　of　putting　up　high　antennas.　A　community　antenna　was　usually　placed　on　a　hill,　a　mountain,　or　on　a　high　tower.　The　antenna　picked　up　TV　signals　and　fed　them　into　a　small　local　station.　From　the　station,　thick　wires　called　cables　ran　out　to　nearby　homes.　Each　person　using　the　cable　paid　a　monthly　charge.
CATV　worked　well,　and　soon　new　uses　were　found　for　it.　Local　stations　could　feed　programs　into　empty　channels　that　were　not　in　use.　People　along　the　cable　could　have　local　news,　weather　reports,　and　farm　and　school　news　at　no　extra　charge.
Today,　cable　television　has　moved　into　cities.　It　brings　in　extra　programs　that　city　viewers　with　regular　antennas　cannot　see.　It　is　also　used　in　many　classrooms　throughout　the　country.
1.　From　the　first　paragraph　we　know　that　________.
○A.　most　people　use　cable　television
○B.　community　antenna　is　another　name　for　regular　antenna
○C.　a　community　antenna　is　used　for　cable　television
○D.　regular　antennas　cannot　pick　up　TV　signals　programs

2.　Of　the　following,　which　is　NOT　the　way　TV　signals　travel?
○A.　In　a　curve.
○B.　In　a　straight　line.
○C.　In　all　direction.
○D.　Toward　the　horizon.