2. Give an example and make a comparison. This paper lists the Forbidden City and the Temple of Heaven, the typical representatives of northern architecture, which can make people deeply impressed and explain the characteristics of things.

3.( 1) "One" cannot be deleted. "One" shows that it is one of the many characteristics of ancient architecture in China, but it is not the only one. This makes the language more accurate.

(2) "pleasing to the eye" highlights the visual enjoyment brought by color contrast, while "obvious" only emphasizes the intensity of contrast.

Yangko is a popular folk dance in rural areas of China. It embodies a distinctive national style in the use of color. When people dance yangko, the clothes they wear are in sharp contrast, red, blue, yellow, green and colorful. Everyone sang and danced with the accompaniment of gongs and drums to express their happy mood and yearning for a better life. The dancing red silk reflects a bright smiling face and becomes a beautiful scenery.

(reasonable)