Read the following ancient poems commenting on the Grand Canal in the Sui Dynasty: Material 1: Hu Ceng's Bianshui: "When the long river opened, the waves of the Sui Dynasty came for nine days. The bro

Read the following ancient poems commenting on the Grand Canal in the Sui Dynasty: Material 1: Hu Ceng's Bianshui: "When the long river opened, the waves of the Sui Dynasty came for nine days. The brocade sail has not fallen. (1) Sui died in the canal. Sui died of tyranny, not the canal itself.

(2) no. The Grand Canal was dug to strengthen the north-south traffic and consolidate the rule of the Sui Dynasty over the whole country.

(3) Difference: First, confirm the benefits of the canal. Same: wrong understanding of the disadvantages of the canal.

The four materials are all poems evaluating the Grand Canal in Sui Dynasty, and the material forms are relatively novel. We should analyze and understand the basic idea of each poem, and grasp some key words, such as "Dragon Boat", "Romantic Style" and "Yangzhou Moon", so as to get effective information.