Paper, as one of the Chinese four great inventions, can be seen everywhere in our life. Although it is very 1 , it can always play an important role when we need it.
Paper is an important 2 in ancient China. Writing was developed gradually from ancient times, when people mainly made ropes to record things. 3 , oracle bone (甲骨) was used as writing material. Bamboo, wood and silk were also 4 and used during the Spring and Autumn Period.
Paper was produced 5 silk was too expensive and bamboo pieces were too heavy. Thanks to the invention, people could no longer use stone, wood, metal and other materials to record writing, pictures or 6 daily things. A large amount of ancient information was spread and preserved.
Paper is quite 7 in our life. It is the carrier (载体) of writing and painting. Painters use it to 8 the beauty of the world, writers use it to tell the warmth of the world, and teachers use it to spread knowledge.
It is also 9 used for packaging (包装). Harder cardboard is used to pack things, such as delivery boxes (快递盒). Of course, it can also be used for other 10 , such as printing paper, toilet paper, and so on.
