Xuzhou's unique solar terms

(1) winter solstice? m？ (2) small? (3)P？ (4) See Figure 2

Test analysis:

(1) According to the counterclockwise direction of the earth's rotation in the pi

(1) winter solstice? m？ (2) small? (3)P？ (4) See Figure 2

Test analysis:

(1) According to the counterclockwise direction of the earth's rotation in the picture, it is judged that the pole in the picture is the North Pole, and the Arctic Circle and its northern region have extreme night phenomenon. At this time, the solar term in Xuzhou is the winter solstice. In the northern hemisphere, the days are short and the nights are long. The higher the latitude, the longer the night, so the night in M is the longest.

(2) After the winter solstice, the direct point of the sun moves south, and the daytime in the northern hemisphere will become shorter, so the shadow range in the next day's map will become smaller.

(3) Plot P is located between the equator and the Tropic of Cancer, in the tropical region, with direct sunlight.

(4) The range of the western hemisphere is 160 E → 180→ 20 W, and 160 E is found in the figure. From the east to 180, it is the western hemisphere.

Comments: According to the position of the direct point of the sun, the position of the earth in the orbit of revolution, and the length of day and night in the northern and southern hemispheres, we can judge the solar terms of the earth. From summer to morning in the northern hemisphere (around June 22), the sun shines directly on the Tropic of Cancer, the days in the northern hemisphere are long and the nights are short, and the Arctic Circle and its north are extremely day. During the winter solstice (about 65438+February 22nd), the sun shines directly on the Tropic of Capricorn, and the days in the northern hemisphere are short and the nights are long, and the Arctic Circle and its northern region are extremely night. At the spring and autumn equinox, the sun shines directly at the equator, and the whole world is as long as day and night. The variation law of the length of day and night can be summarized as follows: ① In which hemisphere is the direct point of the sun, which hemisphere has long days and short nights; (2) which hemisphere the direct point of the sun moves to, the day will become longer.