The figure below is a schematic diagram of a weather system. Look at the picture and answer the following questions. Question 1: Normal situation from June to early July every year, figure

Quest

The figure below is a schematic diagram of a weather system. Look at the picture and answer the following questions. Question 1: Normal situation from June to early July every year, figure

Question 1:D

Question 2:C

Question 3:B

Test analysis:

Question 1: According to the moving direction of cold and warm air mass, it can be judged as a cold front. Under the influence of this weather system, it is prone to rainy weather. According to the geographical latitude, it should be the south of China. If the weather system stays too long, there will be floods in the south and droughts in the north in eastern China.

Question 2: The cold front should be formed near the trough of low pressure. The horizontal movement direction of low-pressure airflow in the northern hemisphere is counterclockwise convergence, so C is selected.

Question 3: The denser the isotherm, the greater the horizontal temperature gradient, and the denser the isotherms in three stages: T 1, T2 and T3, indicating that the horizontal temperature gradient T3 > T2 > T 1, excluding A; The increase of horizontal temperature gradient indicates that the temperature difference between the two sides of the front increases, which is a sign of frontogenesis. The solid line direction indicates the convergence process of two air masses, which is a frontogenesis process, excluding C and D.