Read the pictures below and complete the questions. Question1:When the A front affects Shenyang in March, there may be the following weather phenomena: a. The temperature drops and the air pressure dr

Read the pictures below and complete the questions. Question1:When the A front affects Shenyang in March, there may be the following weather phenomena: a. The temperature drops and the air pressure drops.

Question 1:B

Question 2: D.

Question 3: A.

Test analysis:

Question 1: Front A is a cold front. In northern China, it is easy to form sandstorm weather due to the influence of cold front in spring, so the temperature drops, the air pressure rises and the wind blows.

Question 2: Figure A is located behind the cold front, which is a rainy area, so it forms cloudy, windy, cooling, rainy and snowy weather; A mistake; Figure b is located in front of the cold front, controlled by the warm air mass, and B is wrong; C is located behind the warm front and controlled by the warm air mass. C is wrong. Figure D is located in front of the warm front, which is a rainy area and forms continuous rainfall. Correct.

Question 3: A weather system is a cold front map; Distribution characteristics of air masses on both sides of the front: cold air masses are dense, always under the front, while warm air masses are above the front, so B and C are wrong; The cold front weather map should be that the cold air mass actively attacks the warm air mass, so picture A is correct.

Comments: This question is generally difficult, as long as students can judge the nature of the front according to the different fronts shown in the picture, and combine the differences between the air masses on both sides of the front and the characteristics of the rain area (the rain on the front is always on the side of the cold air mass). For this kind of questions, students should strengthen the implementation of the basic knowledge of textbooks and the training of judging ability by looking at pictures.