Analyze the map of the near-surface weather system in the northern hemisphere, and answer: (1) According to the air pressure, ① is the center of _ _ _ _ _ _ _, ③ is the center of _ _ _ _ _ _. (2) In t

Analyze the map of the near-surface weather system in the northern hemisphere, and answer: (1) According to the air pressure, ① is the center of _ _ _ _ _ _ _, ③ is the center of _ _ _ _ _ _. (2) In the map. (1) According to the distribution and value of isobars, it is not difficult to judge that ① is the center of high pressure and ③ is the center of low pressure.

(2) Combining with the isobar, we can draw and analyze according to the method that the wind direction crosses the isobar obliquely, from high pressure to low pressure, and the geostrophic force in the northern hemisphere shifts to the right. (2) The northwest wind blows slowly.

(3) According to the graphic analysis, ④ The ground is behind the cold front, and the rain area is mainly behind the cold front.

(4) According to the map analysis, ⑤ the ground will be affected by the cold front, and there will be strong winds, rain, snow and cooling weather. After the cold front crossed the border, the temperature dropped, the air pressure rose and the weather turned fine.

(5)① The ground is the center of high pressure, which often leads to sunny days; ③ The ground is the center of low pressure, which often leads to rainy weather. According to the characteristics of large temperature difference between day and night on sunny days and small temperature difference between day and night on cloudy days, it can be judged that ① the temperature difference between day and night is large and ③ precipitation is easy to form.

(6) "Warm day and cool night, dry East China Sea" means hot day and cool night. This proverb is applicable to the southeast coastal area of China in midsummer, which indicates that there will be a drought in the future, and the subtropical high in the western Pacific is the cause of this drought.

So the answer is:

(1) high pressure and low pressure

(2) Northwest China.

(3) Rain is behind the cold front.

(4) Strong wind, cooling, rain and snow, and then the air pressure rises and the rain turns fine.

(5)①③

(6) high pressure, clear and dry