Fill in the blanks with solar terms

(1) According to the chart, when the earth revolves to ②, the direct point of the sun is on the tropic of cancer, Wuhai, Inner Mongolia is the summer solstice, and the time is around June 22nd, while the season in the northern and southern hemispheres is winter instead.

(2) When the earth revolves to ④, the direct point of the sun is on the tropic of Capricorn, and Wuhai, Inner Mongolia is the winter solstice, and the time is around 65438+February 22nd; At this time, the phenomenon of extreme night appeared in the Arctic;

(3) When the earth revolves to position P, the direct point of the sun moves from the equator (about 2 1 year in March) to the Tropic of Cancer (about June 22nd); Combine the options in this process with Children's Day (June 1).

Therefore, the answer is: (1) summer solstice; June 22; Winter; (2) Solstice in winter; 65438+February 22nd; Extreme night; (3)B。