阅读下面短文,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案写在答题卷规定的位置上。
Compass (指南针) It was a great gift to the world from ancient China. Before it was invented, sailors had to depend 【小题1】 the stars to find direction (方向). After it was invented, seas were open to travel. Also, many new 【小题2】 (place) were discovered because people used the compass.
Gunpowder (火药) It was a great 【小题3】 (invent) in ancient China. The correct way of 【小题4】 (make) gunpowder was probably discovered in the 【小题5】 (nine) century. At first, it was used for making fireworks(烟火). At the end of the Tang Dynasty, people began to use it in wars.
Paper-making During the Western Han Dynasty, paper was made in some places in China. It was developed in the Eastern Han Dynasty by Cai Lun. He made writing much 【小题6】 (easy) than before with the help of paper. Before it was invented, the ancient Chinese used animal bones (骨头) and stones 【小题7】 (write) characters(文字). They also wrote 【小题8】 on bamboo and wooden sticks.
Printing (印刷术) In the Song Dynasty, Bi Sheng carved (雕刻) characters on pieces of clay (陶土) and wood. Then he put ink on them. After the characters were printed on paper, the pieces of clay or wood could be used again. It was 【小题9】 good way at that time. This technology (技术) spread 【小题10】 (quick) to Korea, Japan and Europe.