Read the "Schematic Diagram of the Earth's Revolution" and answer the following questions. (1) Write the solar terms in the northern hemisphere when the earth revolves to positions A and B: A _ _ _ _

Read the "Schematic Diagram of the Earth's Revolution" and answer the following questions. (1) Write the solar terms in the northern hemisphere when the earth revolves to positions A and B: A _ _ _ _ _, B _ _ _ _. Reading pictures shows that,

(1)A is the summer solstice, and B is the winter solstice;

(2) When the earth revolves to position A, the latitude of direct sunlight is the Tropic of Cancer, and the summers in the northern hemisphere include 6, 7 and 8? Three months;

(3) The solar terms with equal day and night in Changsha are vernal equinox and autumnal equinox, when the sun shines directly on the equator;

(4) The direction of the earth's revolution around the sun is from west to east;

(5) Due to the rotation of the earth, the four seasons in temperate regions change obviously.

So the answer is:

(1) Summer solstice; Solstice of winter;

(2) Tropic of Cancer; 6、7、8;

(3) vernal equinox; Autumnal equinox;

(4)

(5) Four seasons.