Every morning my father buys a newspaper on his way to work. Every evening my mother looks through magazines at home. And every night, I look at the posters with photos of David Beckham and Yao Ming on my bedroom wall before I go to sleep. Can we imagine life without paper or print?Paper was first created about 2000 years ago, and has been made from silk, cotton, bambooand since the 19th century from wood. People learned to write words on paper to make a book. But in those days, books could only be produced one at a time by hand. As a result. they were expensive and rare. And because there weren't many books, few people learned to read.Then printing was invented in China. When printing was developed greatly at the beginning of the 11th century, books could be produced more quickly and cheaply. As a result, more people learned to read. After that, knowledge and ideas spread quickly.Today information can be received online, downloaded from the Internet rather than found in books, and information can be kept on CDROMs or machines such as MP3players. Computers are already used in classrooms, and newspapers and magazines can already be read online. So will books be replaced by computers one day? No, I don't think the Yao Ming poster on my bedroom wall will ever be replaced by a computer two meters high!51.What does the writer do before he goes to sleep?A. He reads books.B. He reads newspapers.C. He looks through magazines.D. He looks at the posters on the wall.52. When was paper first created?A. About 2000years ago.B. In the 19th century.C. About 1000years ago.D. In the 11th century.53. Why were books expensive and rare before the invention of printing?A. People could not read.B. People could not write words on paper.C. People could not find silk， cotton or bamboo.D. People could only produce a book at a time by hand.54. What happened after books became cheaper?A. People didn't want to buy books.B. Printing was invented in China.C. Knowledge and ideas spread quickly.D. The Internet was introduced to people soon.55. What is the writer's opinion about books and computer?A. People won't need books any more.B. Books won't be replaced by computers.C. People prefer to find information in books.D. Computers have already replaced books.