阅读下列短文，从每题所给的[A]、[B]、[C]和[D]四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

　　Text l

　　Almost every family buys at least one copy of a newspaper every day. Some people subscribe(订阅) to as many as two or three newspapers. But why do people read newspapers?

　　Five hundred years ago, news of important happenings--battles lost and won, kings or rulers overthrown (****) or killed--took months and even years to travel from one country to another. The news passed by word of mouth and was never accurate. Today we can read in our newspapers of important events that occur in far away countries on the same day they happen.

　　Apart from supplying news from all over the world, newspapers give us a lot of other useful information. There are weather reports, radios, television and film guides, book reviews, stories and, of course, advertisements. The bigger ones are put in by large companies to bring attention to their products. They pay the newspapers thousands of dollars for the advertising space, but it is worth the money, for news of their products goes into almost every home in the country. For those who produce newspapers, advertisements are also very important. Money earned from advertise- ments makes it possible for them to sell their newspapers at a low price and still make a profit.

　　Newspapers often have information on gardening, cooking and fashion as well as a small but very popular section on jokes and cartoons( 漫画 ).

　　21. What is the text about?

　　A. Advertisements are the most important part in newspapers.

　　B. It introduces newspapers past and today and its contents.

　　C. There is a lot of useful information on newspapers.

　　D. People like newspapers very much.

　　22. The habit of reading newspapers is________.

　　A. uncommon in the world

　　B. not popular in U. S. A.

　　C. widespread in the world

　　D. found among a few families

　　23. The section on jokes and cartoons is________.

　　A. read only by children

　　B. of no value

　　C. not helpful

　　D. read by many people