题型:任务型阅读 题类: 难易度:困难
牛津上海版(深圳用)六年级上册Unit 8 Visiting museums 提升培优评价卷
Paper-making, compass, gunpowder (火药) and printing (印刷术) are the Four Great Inventions of ancient China.
In the Western Han Dynasty (朝代), people know how to make paper. In the Eastern Han Dynasty, Cai Lun uses tree bark, old cloth, and fishnets to make paper. These things are easy to find and cheap. Since then, more people can use paper.
Compass is also called Sinan. It is invented in China during the Han Dynasty. The spoon on the compass always points (指) to the south. It helps travelers to find their way.
Gunpowder is invented in China during the Tang Dynasty. It is a mixture of sulfur, charcoal, and saltpeter. At first, it is used in fireworks. Then people use it in cannons and guns.
Printing is invented in China during the Song Dynasty. It uses small blocks to create printed pages. So people can print books faster. After that, more people can read books and learn new things.
People don't have paper in the Western Han Dynasty.
What does Cai Lun use to make paper?
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