阅读下面短文，根据语境、音标或所给的单词提示，在每个空格内填入一个适当的单词，要求所填的单词意义准确、形式正确，使短文意思完整、行文连贯。
Before paper was invented, people wrote or
drew on materials such as bamboo, {#blank#}1{#/blank#} /sɪlk/,
animal hide, and wooden blocks. Writing materials were {#blank#}2{#/blank#} (real)
expensive and few people learned to read. Therefore, few people wrote. This all
changed, thanks {#blank#}3{#/blank#} an man named Cai Lun.
Paper had already existed (存在) in China ,
but the process for {#blank#}4{#/blank#} (produce) it was difficult and the paper was of
low quality. Cai Lun began experimenting (试验)
with many different materials and different {#blank#}5{#/blank#}
(method) to turn those materials into paper. In the year 105, he made it from
tree bark, bamboo, cloth rags, and fishing nets. His paper was {#blank#}6{#/blank#} (strong) and cheaper than any
paper that had been made before.
With Cai Lun's papermaking method, Chinese
culture {#blank#}7{#/blank#} /ɡruː/ more rapidly
over the next several centuries. That's because ideas were much easier to share
{#blank#}8{#/blank#} more people learned to
read. The use of paper spread abroad, helping {#blank#}9{#/blank#}
/'ʌðə/
cultures record and spread their ideas. Today, Cai Lun is considered a national
hero in China. But {#blank#}10{#/blank#} whole
world should remember the clever Chinese papermaker forever.
