(
课件网) Unit 4 Inventions 主题范畴： 人与社会 主题群： 科学与技术 子主题： 科学技术与工程，人类发明与创新 Key question What makes an invention great master the meanings and usages of some key words; describe the steps of printing a book with movable type； know about other great inventions of ancient China. Learning objectives 学习目标 At the end of the class, I’ll be able to: notice type *mixture heat press metal / n t s/ v. 看（或听）到；注意到 /ta p/ n. （印刷用的）活字 / m kst (r)/ n. 混合物 /hi t/ v. 加热；变热 /pres/ v. （被）压 / metl/ n. 金属 New words Lead-in Do you still remember what China’s Four Great Inventions are Section 4 Extending and developing competencies Focusing on culture The famous four great inventions of ancient China have had a huge impact on the whole world. Let’s learn about one of them. Read the story about Jane’s encounter with a great inventor from ancient China. Movable type: a dream come true Suddenly, Jane found herself inside a big room. She could see an open fire and a big desk with lots of strange tools. There was a man by the desk, and he was working with clay. He was so busy that he didn’t notice her. It was nearly ten o’clock at night. Jane was in bed. She was reading a book about the history of printing when she fell asleep. “Excuse me, what are you doing ” asked Jane. “I’m going to print a book, so I’m making type,” the man replied. “Type What is it Could you tell me more about it ” asked Jane. “Sure. First, I cut characters into pieces of clay. Then I bake them with fire to make them hard. These ones are ready now—look, each character is a single piece of type. I need to make thousands of these before I can print the book,” said the man. “Could you show me how to print with them ” asked Jane. “First, spread out a mixture of pine gum (松脂), wax and paper ash (灰) on a metal plate. Next, put each piece of type on the plate and fix them with a frame (框架). After that, heat it up so that the mixture will melt. Then press down on the clay characters with a board to make sure the surface is even. Finally, brush the characters with ink (油墨)—now, it’s ready to print,” he explained. “Oh, you must be Bi Sheng (毕昇),” Jane said. “I learnt about you in the book. You invented movable type. You know what, the German craftsman (工匠) Gutenberg improved your invention and introduced metal movable type to Europe about 400 years later.” Bi Sheng smiled. At that moment, Jane woke up. It was only a dream ...! She looked at the book in her hands and smiled. Bi Sheng was a craftsman and engineer in the Song dynasty. Sometime between 1039 and 1048, he invented movable-type printing technique. It is one of the four great inventions of ancient China. Notes 注释 毕昇是宋朝的一位工匠和工程师。大约在1039到1048年之间，他发明了活字印刷术。这是中国古代四大发明之一。 Read the story on page 62 and fill in the table. While-reading Elements Content T ... ...
