Read the "Map of Weather System Distribution in the Northern Hemisphere in One Day" and answer the questions. Question 1: A is () A. High pressure center B. Low pressure center

Question 1:A

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Read the "Map of Weather System Distribution in the Northern Hemisphere in One Day" and answer the questions. Question 1: A is () A. High pressure center B. Low pressure center

Question 1:A

Question 2: A.

Question 3: A.

Test analysis:

Question1:The air pressure in the center of A is higher than the surrounding area, so it is judged as a high pressure center.

Question 2: According to the distribution of the isobar in the figure, the wind direction is inclined to the isobar, pointing from high pressure to low pressure, and the geostrophic force in the northern hemisphere is to the right, so the wind direction can be drawn directly from the figure, which is northeast wind.

Question 3: Figure ② shows the cold front, and there are strong winds, cooling and rain and snow when the cold front passes by.

Comments: This question is less difficult. As long as students can judge the drawing method of barometric center and the wind direction of isobar chart from the distribution characteristics on the chart, and judge the nature of the front and the weather change of the front according to different front symbols, it is necessary to strengthen the implementation of basic knowledge in textbooks and the training of judging ability by looking at pictures.