外研版九上module4greatinventions(unit2)ppt同步授課課件-文庫吧資料
2024-11-27 01:00本頁面
【正文】 Every day I open my books in class and start my lessons. 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? c. Life on paper and in print Paper was first created about 2,000 years ago, and has been made of silk, cotton, bamboo, and since the 19th century, of 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. a. The world before books Read and get the main ideas of the paragraphs Then printing was invented in China. The first printed books were made by putting ink against a wooden block and holding the paper against it. 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, in a way that can be pared with the introduction of the Inter in the 20th century. b. The invention of printing Read and get the main ideas of the paragraphs But will books be needed in the future? Today information can be received online, downloaded from the Inter rather than found in books, and information can be kept on CDROMs or machines such as MP3 players. These machines are smaller and lighter than books so that they can be carried very easily. d. Technology and books Read and get the main ideas of the paragraphs Computers are already used in classrooms, and newspapers and magazines can already be read online. So will books be replaced by put
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