Qing Ming is 【小题1】 (popular) associated with Jie Zizhui, 【小题2】 lived in Shanxi province in 600 B. C. It is said that Jie saved his starving lord's life by serving a piece of his own leg. When the lord succeeded in becoming the ruler of a small country, he invited his faithful follower to join him. 【小题3】, Jie declined his invitation, 【小题4】 (prefer) to lead a simple life with his mother in the mountains.

Believing that he could force Jie out by burning the mountain, the lord ordered his men to set fire to the forest. To his disappointment, Jie chose to remain where he was and was burnt to death. 【小题5】 (memorize) Jie, the lord ordered all fires in every home to be put out on the anniversary of Jie's death. Thus began the “cold food feast”, a day 【小题6】 no food could be cooked since no fire could be lit.

The “cold food” festival occurs on the eve of Qing Ming and 【小题7】 (consider) as part of the Qing Ming festival. As time passes, the Qing Ming festival has replaced the “cold food” festival. Whatever practice is observed, the basic observation of Qing Ming is to remember one's elders by making 【小题8】 special effort to visit their graves, ashes or ancestral tablets. To make the visit even more 【小题9】(meaning), some time should be spent to remind the younger members of the family of the lives and contributions of their ancestors. One of the most important 【小题10】 (activity) on this day is to sweep graves to honor ancestors, dead relatives and friends.

In ancient times, the Chinese kite was known as "Zhiyuan", and was considered to have unique artistic values. It first 【小题1】(appear) in the wars of the Spring & Autumn Period (770 BC - 476 BC). According to historical records, Mo Zi spent three years constructing a wooden kite, 【小题2】 failed after one day's flight. 【小题3】 book noted that the master carpenter Lu Ban also made several kites which were flown high to spy 【小题4】 the enemy.

The technology developed further during the famous Chu-Han War. The general(将军) of the Han troops Zhang Liang once ordered his soldiers 【小题5】(fly) kites in the heavy fog around the Chu troops 【小题6】(lead) by Xiang Yu. Children sitting in the large kites played tunes（曲调）of Chu on flutes.

The making procedure can 【小题7】 (divide) into three parts, while the 【小题8】 (base) one remains the same. However, styles of kite-making vary in different 【小题9】 (region). These in the ''World Kite Capital'' of Weifang in Shandong Province are well known for their nice craftsmanship, materials, painting, sculpture and they can fly 【小题10】 (flexible).

Zu Chongzhi was one of the greatest mathematicians (数学家) in ancient China. From a young age, Zu was 【小题1】(teach) natural science, astronomy, math and so on. The little boy was 【小题2】 (interest) in all of these subjects, especially in 【小题3】.

Zu was best known for his calculation of pi (π). According to the record, he did all the work 【小题4】 (use) nothing but wooden sticks.

【小题5】 took him lots of time to work out the value between 3.1415926 and 3.1415927. No one at that time was able to do 【小题6】 (good) than him. And now the 【小题7】 (achieve) is still praised by people around the world.

Zu was successful not only in math, but also in astronomy. He worked out that a year should be 365.24281481 days long and created the Daming Calendar. However, government officials at that time did not agree 【小题8】 him. Almost ten years after his death, the new calendar was 【小题9】 (final) accepted and put into use. He was an inventor, too. He once made a vehicle 【小题10】 carried a pointer. No matter how the vehicle turned, the pointer always pointed to the south.