Read the statistical curve of daily length changing with seasons in different places (solar terms in the northern hemisphere on the map) and answer the questions. Question 1: A, B, C and D in the diag

Read the statistical curve of daily length changing with seasons in different places (solar terms in the northern hemisphere on the map) and answer the questions. Question 1: A, B, C and D in the diagram.

Question 1:A

Question 2:C

Question 3:C

Test analysis:

Question 1: According to the statistical curve of the variation of daily length with seasons in various places, the daily length of area A is 12 hours throughout the year, so it is judged to be located at the equator; Area B has the longest winter solstice and the smallest summer solstice, so it is judged to be located in the mid-latitude area of the southern hemisphere. In area C, there are extreme days from winter to Sunday and extreme nights from summer to Sunday, so it is judged to be located in the Antarctic circle; The polar night appears in the winter half year and the polar sun appears in the summer half year in area D, so it is judged to be located in the North Pole.

Question 2: According to the statistical curve of daily length changing with seasons, the higher the latitude, the greater the seasonal change of daily length, so it is judged that the latitude of the four places is dcba from high to low, while the higher the latitude, the slower the rotation linear speed, so it is judged that the rotation linear speed of the four places is dcba from slow to fast.

Question 3: According to the diagram, when day C is the longest, it is the winter solstice in the northern hemisphere, and the earth's revolution is close to the perihelion, and A is wrong; Beijing has the shortest day and the longest night, with B error; From winter to the sun, the direct point of the sun is located on the tropic of Capricorn, so the noon sun height in Shanghai reaches the minimum value in a year, and C is correct; From winter to the sun, there is a phenomenon of extreme night in the Arctic. D is wrong.

Comments: There are many test sites in this question, which is generally difficult. To solve the problem, we need to master the following points: ① the distribution law of the length of day and night at different latitudes from the bisector to the day; (2) the relationship between the variation of the length of day and night and latitude; ③ The relationship between the linear velocity of the earth's rotation and latitude; ④ According to the latitude position of the direct point of the sun, the diurnal variation, the height of the sun at noon and the distribution range of extreme diurnal phenomena can be judged.