(10) Read Schematic Diagram of the Revolution of the Earth and answer this question. (1) Write the solar terms in the northern hemisphere when the earth revolves to positions A, B, C and D: A.

(1) vernal equinox? Winter solstice? Autumn equinox? Summer solstice

(2) Tropic of Cancer? An extreme day? (3) 12? 22

④ Ding ⑤ seasons.

Test analysis: (1) Write down the solar terms in the northern hemisphere when the earth revolves to positions A, B, C and D: A vernal equinox, C autumnal equinox, direct equator, B winter solstice, direct tropic of cancer, D summer solstice, direct tropic of cancer; (2) When the earth revolves to position D, the latitude of direct sunlight is the Tropic of Cancer, and there is an extreme day in the Arctic Circle; (3) In a year, the shortest day in Nankang is before 65438+February 22nd; (4) When the revolution of the earth is in position D, the season in the southern hemisphere is winter, and the seasons in the northern and southern hemispheres are opposite; (5) Due to the rotation of the earth, the four seasons in temperate regions change obviously.

Comments: This topic can also examine the direction, period, movement center and geographical phenomena of the earth's rotation and revolution.