(2) The Japanese sent special envoy Tang to China?
(3) In the early years of Emperor Xuanzong of the Tang Dynasty, Kaiyuan flourished.
(4) New Year's Day, a traditional festival in the Song Dynasty.
Test analysis: (1) This question mainly investigates the Grand Canal in Sui Dynasty. The opening of the Grand Canal in Sui Dynasty greatly promoted the economic exchanges between the north and the south of China. The main purpose of opening the Grand Canal in Yang Di is to strengthen the north-south traffic and consolidate the rule of the Sui Dynasty over the whole country. But in the later days, he often sailed to Jiangnan along the Grand Canal, which led to the demise of the Sui Dynasty.
(2) This topic mainly examines the historical facts of Japan's dispatch of Tang envoys to China. Chao Heng in "Chao Heng, Japan resigns from the capital and sails to Penghu" was a famous monk in Japan at that time. He sent envoys of the Tang Dynasty to Chang 'an with Japan to learn the advanced culture of the Tang Dynasty. Like the famous monk in Tang Dynasty, he made outstanding contributions to the cultural exchange between China and Japan.
(3) This topic mainly examines the historical facts of the early years of Emperor Xuanzong of the Tang Dynasty. "Remembering the past, the prosperous new century, there are still thousands of families in the small town" comes from the poem "Remembering the past" by Du Fu, a poet in the Tang Dynasty. This poem reflects the scene of large population, abundant food, abundant warehouses and social stability in the early years of Xuanzong in Tang Dynasty.
(4) This topic mainly investigates New Year's Day, a traditional festival in Song Dynasty. "One year after firecrackers, the spring breeze sends warmth into Tu Su" comes from Wang Anshi's poem "January Day" in the Song Dynasty. This poem describes the scene of people celebrating the Spring Festival in the Song Dynasty. In the Song Dynasty, the Spring Festival was called New Year's Day, which attracted the most attention. A few days before New Year's Day, people cleaned their houses, worshipped their ancestors on New Year's Eve, welcomed the gods, put up New Year pictures and put up "Fu Tao" to celebrate New Year's Day. On New Year's Day, firecrackers are very popular.