Read the schematic diagram of the earth's revolution and answer the following questions (1). Mark the direction of the earth's rotation and revolution with arrows. (2) When the earth revolves to point

Read the schematic diagram of the earth's revolution and answer the following questions (1). Mark the direction of the earth's rotation and revolution with arrows. (2) When the earth revolves to point C, Look at the map and it shows (1) that the direction of the earth's rotation and revolution is from west to east. (2) When the earth revolves to C, the date is 6.2 1 or 6.22, and the latitude of the direct point of the sun is 23.5 N. On this day, the length of day and night in the southern hemisphere is short and the length of night is long. (3) When the earth rotates to a position, the pole appears to the south of the Arctic Circle. The date is 9.22 or 9.23, and the latitude of the direct point of the sun is the equator. On this day, the length of day and night on the equator is equal. (5) China's Antarctic expedition chose to start in winter because winter in the northern hemisphere is summer in the southern hemisphere.

So the answer is: (1); (2)6.2 1 or 6.22; 23.5N； The days are short and the nights are long; (3) extreme night; Solstice of winter; (4)9.22 or 9.23; Equator; The length of day and night is equal; (5) Winter in the northern hemisphere is summer in the southern hemisphere.