Read the following information and the map of typical blocks in Beijing (part), and answer the following questions. The traditional residential area in Beijing is around the imperial city, with hutong

Read the following information and the map of typical blocks in Beijing (part), and answer the following questions. The traditional residential area in Beijing is around the imperial city, with hutongs. (1) Beijing is located at the junction of Taihang Mountain, Yanshan Mountain and North China Plain, and its urban function is the political center, cultural center and international exchange center of China.

(2) As can be seen from the picture, the buildings in Beijing are arranged in a chessboard shape, and there is a central axis running through the center from north to south, which makes the city symmetrical left and right, showing a "convex" axis urban pattern;

(3) The ancient buildings and gardens in Beijing mainly include the Forbidden City, the Temple of Heaven and the Summer Palace.

(4) In the urban construction and development of Beijing, attention must be paid to maintaining the pattern and style of the ancient city. Important ancient buildings, gardens and characteristic blocks should be protected and repaired, and precious historical and cultural heritage should be protected.

So the answer is: (1) political center, cultural center and international exchange center; (2) Chessboard-shaped, the central axis runs through the center from north to south, which makes the city symmetrical from left to right, showing a "convex" axis urban pattern; (3) Forbidden City, Temple of Heaven and Summer Palace; (4) Pay attention to maintaining the pattern and style of the ancient city. Important ancient buildings, gardens and characteristic blocks should be protected and repaired, and precious historical and cultural heritage should be protected.