Module 4 Great inventions Unit 1 Paper and printing have been used for ages . 1【最新】九年级英语上册 Module 4 Unit 1 Paper and printing have been used for ages同步授课课件 外研版 课件 compass paper gunpowder printing Four great inventions in ancient China Match the words with the pictures: battery camera photo printing turn off turn on 3 Words and expressions 1.Printing n. 印刷术 print 印刷品 Printing was invented in China . 中国发明了印刷术。 2.advantage n. 优点 disadvantage 缺点 What is the advantage of the book? 这本书有什么优点？ an import
