In frontal cyclone, due to the fast moving speed of cold front, the weather system formed by cold front chasing warm front is called blocking front. Look at the frontal cyclone and shelter below.

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In frontal cyclone, due to the fast moving speed of cold front, the weather system formed by cold front chasing warm front is called blocking front. Look at the frontal cyclone and shelter below.

Question 1:B

Question 2: D.

Question 1: Blocking front is a kind of front, which is formed when a cold front catches up with a warm front, or when two cold fronts meet head-on (or two sections of the same cold front meet head-on). According to the trend of the front moving from southwest to northeast, choose item B.

Question 2: According to the front moving from southwest to northeast, P will be affected by the front in the next few days, resulting in rainy weather. Select item d.