Read the map of the earth's position at bisection and answer the following questions. (10) (1) Write the northern hemisphere solar terms A _ _ _ _ _ _ _

Summer solstice? Autumn equinox? Winter solstice? Vernal equinox (2)B? D (or d? b)？ Answer? C (3)？ A c

This topic examines the movement of the earth and the ability to read and analyze pictures. (1) Judging from the position of the direct sunlight point in the figure: the direct sunlight point at position A is located on the tropic of cancer, and it is judged as the summer solstice; The direct point of the sun at position C is located on the tropic of Capricorn, which is judged as the winter solstice, so B stands for the autumnal equinox and D stands for the vernal equinox; (2) In the Spring and Autumn Period, when the direct point of the sun is located at the equator, the intersection line of the Huang Chi plane is perpendicular to the sunlight. The direct point of summer solstice is located in the northern hemisphere, and the direct point of winter solstice is located in the southern hemisphere. (3) The revolution of the earth is close to perihelion, and the revolution speed is the fastest; The revolution is near perihelion, and the revolution speed is the slowest.