Low temperature weather analysis

Analysis of test questions: ① The weather is clear, there are few clouds during the day, and the atmosphere has a weak weakening effect on solar radiation, so the temperature is higher than ④. A mistake; At night, ① there are few clouds and the atmospheric inverse radiation is weak, so the temperature is lower than ④, and B is correct; Figure ① is located on the side of warm air mass, while ③ is located on the side of cold air mass, so the air pressure ③ >; (1), c error; Figure ② is located near the front, which is a rainy area, so the precipitation ② >; ③ and d error.

Comments: This question is not difficult. As long as students look at the pictures carefully, the key to solving the problem is to master the differences of air mass properties and weather conditions around the graphic front.