Cold Food Festival is a    1     (tradition) Chinese holiday celebrated before Qingming Festival, which usually falls    2     April 4 or 5.

Legend has it that Chong’er, a prince of Jin in the Spring and Autumn Period, experienced many hardships while he moved around the warring states. Once, when the prince suffered from     3     (starve), Jie Zitui, offered him food. Later, when Chong’er became the duke of Jin, he ordered a search for Jie who had gone into hiding in the remote mountains with his mother. The duke wanted Jie    4     ( serve) as one of his ministers. Contrary to    5     many people might assume, Jie, who preferred living a simple life in the Mianshan Mountain to     6     (become) a politician, refused the duke’s invitation. Chong’er ordered the mountain to be burned down to force Jie out of hiding.     7     (fortune), Jie did not give in and the fire ended up killing him and his mother. Feeling extremely sorry, Chong’er required that the setting of fire    8     (forbid) on the anniversary of Jie’s death. This meant all food was eaten cold. Therefore the festival is thus named.

Mianshan Mountain,     9     the tragedy happened, is now a famous tourist destination in Shanxi Province. In many areas of Shanxi, locals still remember this tradition.     10     cold food is not the only choice for people during the celebration, the practices of making typical cold dishes for the event have been preserved.

China is widely known for its ancient civilization     1     has continued all the way through into modern times. There are many reasons why this has been possible.

At the beginning, written Chinese was     2     picture-based language. Ancient Chinese people carved     3    （ symbol） on animal bones and shells. By the Shang Dynasty, a well-developed writing system had come into being. At that time, people lived in different places,    4     （ lead） to many varieties of dialects and characters.

Emperor Qinshihuang united the seven major states into one country where the Chinese writing system began to develop     5    one direction. The writing system was of great     6    （important） in uniting the Chinese people and culture. Even today, wherever Chinese people live or whatever dialect they speak, they can communicate    7     （free） in writing.

Written Chinese has also become an important means by which China's present is connected with    8    （it） past. People in modern times can read classic works that    9    （write） by Chinese in ancient times. The high regard for the Chinese writing system can be seen in the development of Chinese characters as an art form,    10    （ know） as Chinesecalligraphy, which has become an important part of Chinese culture. Today, the Chinese writing system is still an important part of Chinese culture.

Some time after 10,000 BC, people made the first real attempt to control the world they lived     1     , through agriculture. Over thousands of years, they began to depend less on     2     could be hunted or gathered from the wild, and more on animals they had raised and crops they had sown.

Farming produced more food per person     3     hunting and gathering, so people were able to raise more children. And，as more children were born, more food     4    (need). Agriculture gave people their first experience of the power of technology     5    (change) lives.

By about 6000 BC，people     6     (discover)the best crops to grow and animals to raise. Later，they learned to work with the     7     (season)，planting at the right time and, in dry areas,     8     (make) use of annual floods to irrigate (灌溉) their fields.

This style of farming lasted for quite a long time. Then，with     9     rise of science, changes began. New methods     10     (mean) that fewer people worked in farming. In the last century or so, these changes have accelerated. New power machinery and artificial fertilizers (化肥) have now totally transformed a way of life that started in the Stone Age.