Read the schematic diagram of the earth movement (below) and answer the questions. (1) This diagram reflects the diagram in the movement of the earth, ("rotation" or " ..

(1) revolution

(2

Read the schematic diagram of the earth movement (below) and answer the questions. (1) This diagram reflects the diagram in the movement of the earth, ("rotation" or " ..

(1) revolution

(2) Omission

(3)365 days

(4) March 2 1 or so; Equator; Spring Equinox

(5) summer; winter

(6) 12

Test analysis:

(1) According to the movement of the earth around the sun, we can get a schematic diagram showing the revolution of the earth.

(2) In the process of revolution, the earth revolves around the sun from west to east, drawing an arrow pointing to the east.

(3) During the earth's revolution around the sun, the movement period is about 365 days, that is, one year.

(4) During the earth's revolution, the earth moves to different positions, the position where the sun shines on the earth's surface is different, the solar heat is different, the time is different, and the solar terms are different. When the earth revolves to location A, the sun shines directly at the equator, which is the vernal equinox in the twenty-four solar terms, and the date is around February1March.

(5) During the revolution of the earth, the seasons in the northern and southern hemispheres are opposite, because the sunlight and heat obtained by the northern and southern hemispheres are different. When June, July and August are summers in the northern hemisphere; It is winter in the southern hemisphere at this time.

(6) When the sun shines directly on the equator, the light and heat gains in the northern and southern hemispheres are almost the same. When the earth moves to C, the sun shines directly on the equator, and the light and heat in the northern hemisphere are almost the same, so the water in the northern hemisphere is divided equally day and night, and the length of a day is 12 hour.

Comments: In the process of rotation, the earth keeps turning around the sun from west to east. A revolution takes a year. During the revolution of the earth, the surface of the earth is irradiated by the sun in different geographical positions on the revolution orbit, which leads to seasonal changes. The earth is moving. On June 2 1 or 22 every year, the sun shines directly on the Tropic of Cancer. At this time, the northern hemisphere gets the most light and heat, which is the summer solstice in the northern hemisphere. On the solstice in summer, the days are long and the nights are short. June, July and August, including the summer solstice, are summers in the northern hemisphere. On September 22 or 23 every year, the sun shines directly on the equator, at which time the northern hemisphere gets almost the same light and heat as the southern hemisphere. This day is the autumn equinox in the northern hemisphere. The autumnal equinox is divided equally between day and night. September, 10, 1 1, including the vernal equinox, are all autumn in the northern hemisphere. On February 22nd or 23rd every year, 12, the sun shines directly on the tropic of Capricorn, when the northern hemisphere gets the least light and heat, that is, the winter solstice in the northern hemisphere. Winter solstice, the days are short and the nights are long. Winter in the northern hemisphere includes 12, 1 and February. On March 20 or 2 1 day every year, the sun shines directly at the equator, and at this time, the light and heat obtained in the northern hemisphere are almost the same as those in the southern hemisphere. This day is the vernal equinox in the northern hemisphere, divided equally between day and night. March, April and May, including the vernal equinox, are spring in the northern hemisphere. The seasons in the northern and southern hemispheres are opposite.