先通读下面的短文，然后根据短文内容和所给首字母，在空格内填入一个适当的单词。使短文完整。所填单词必须在答题卡标有题号的横线上完整写出。（本大题共10空，每空0.5分，共5分）
Do you like listening to radio? For some people, listening to radio programs has become a part of their d__小题1:lives. How did this start?
Radio began as ship-to-ship and ship-to-land c__小题2:. In the early 1900s, several people showed that radio could do more than that. Dr. Lee De Forest, is w____小题3: known as the father of radio. He made the first p___小题4: radio broadcast. As a fan of opera, De Forest wanted to s__小题5: the musical entertainment into homes. His first try was on January 13,1910, from the Metropolitan Opera House (大都会歌剧院) in New York City. However, the signal was not good enough. Only a few listening stations and a___小题6:in the harbor (港湾) area were able to hear this broadcast. Although there was a lot to do to improve, it s__小题7:what radio could do.
Look at the world around us. Radio broadcasts are e___小题8:. Information now travels at the speed of l____小题9:. Music, news, traffic reports and speeches from world leaders are all on the radio. Can you imagine a world w___小题10:radio?