2014年大学英语四级改错练习5

　　One of the three major commercial networks, CBS were organized 1. ____

　　in l928 which its founder, William Paley, acquired 2. ____

　　ownership of a group of radio stations. As the

　　Columbia Broadcasting System expanded its operations,

　　soon become the largest radio network in the 3. ____

　　United States, it precociously recognized the potential

　　for the rapidly evolved television broadcasting 4. ____

　　technology. On July 13th, 1931, it began experimentally 5. ____

　　television broadcasting in New York, and ten years later

　　began regular black and white week broadcasts over 6. ____

　　its WCBW TV station in the same city, that became 7. _ __

　　WCBS TV in November 1946. With Television City

　　in Hollywood, CBS launched the industry’s first full

　　scale production studio.

　　Today CBS owns television stations, radio stations,

　　and home video production and distribution interests.

　　The CBS \ Broadcasting Group composed of six 8. ____

　　divisions ： television network, entertainment, sports,

　　news, local television stations, and radio.

　　For most of commercial television history, CBS

　　has been the leader in prime-time ratings, having the

　　highest-rated shows in almost every year from the

　　mid 1950s through the mid 1980s. During the late

　　1980s, however, CBS lost its top position from NBC. 9. ____

　　CBS has traditionally been strong in the TV

　　news area. The network began the first regular TV news

　　program in l948 with Douglas Edwards as anchor,

　　Journalism legends such as Edward R. Murrow and

　　Walter Cronkite gave CBS its reputation as quality 10. ____

　　news broadcaster.