The picture below shows the ground weather in some parts of China in the past month. Look at the picture and answer the following questions. (*** 10) (1) This chart is most likely _ _ _ _ _ _ (

The picture below shows the ground weather in some parts of China in the past month. Look at the picture and answer the following questions. (*** 10) (1) This chart is most likely _ _ _ _ _ _ (

(1) 1 month (2 points)? Cyclone prevention (2 points)

(2) warm front? (2 points)? Cloudy, windy, rainy and cool (2 points)

(3) northerly wind (northwest wind) (2 points)?

Test analysis:

The problem (1) shows that the Eurasian continent is controlled by high pressure (anticyclone), so it is the surface weather situation map of 1.

Question (2): As can be seen from the figure, B is the center of the low pressure, and the low pressure in the northern hemisphere rotates counterclockwise. According to the airflow direction, it can be judged that there will be a warm front crossing from E in the near future, and the warm front crossing is often accompanied by cloudy days, windy days, rainfall, cooling and other weather phenomena.

Question (3): At this time, the wind direction of M is northerly (northwest wind). As shown in the following figure (note: the black arrow is the horizontal pressure gradient force, and the red solid arrow is the wind direction).

Comments: This topic examines the weather system with the help of relevant knowledge points in local areas. Error-prone point of this question: (1)A is controlled by high pressure, but as far as airflow is concerned, you should answer anticyclone, and you don't score if you answer high pressure. (2) To judge the wind direction, we should consider the horizontal pressure gradient force and geostrophic deflection force, and pay attention to the right deviation of the northern hemisphere wind.