Light represents solar terms.

(1) According to the diagram, the direct point of the sun at this time is on the tropic of Capricorn, and the time is around 65438+February 22; China in the northern hemisphere is the winter solstice;

(2) According to the diagram, the direct point of the sun at this time is on the tropic of Capricorn, and the seasons in the northern hemisphere and the southern hemisphere are opposite, and the northern hemisphere is winter;

(3) According to the diagram, the location B on the equator is equally divided day and night; Point B gets more solar heat than point A, and the temperature will be higher.

(4) According to the diagram, Africa is a daytime hemisphere at this time; And China is in the night hemisphere at this time; As shown in the figure: ..

So the answer is: (1)12; 22; Solstice of winter; (2) Tropic of Capricorn; Winter; (3) Equal division of day and night; More; High; (4) the solar hemisphere; Night hemisphere; .