Read the picture on the right and complete the following questions. (1) The solar terms represented by local demand at positions A, B, C and D are A _ _ _ _ B&；; ...

(1) summer solstice autumnal

Read the picture on the right and complete the following questions. (1) The solar terms represented by local demand at positions A, B, C and D are A _ _ _ _ B&；; ...

(1) summer solstice autumnal equinox winter solstice vernal equinox

(2)C？ A

(3) a? C

(4)B、D？ c？ A

Test analysis:

(1) According to the latitude position of the sun's direct point in the diagram, the sun's direct point at position A is located on the tropic of cancer, and it is judged as the summer solstice in the northern hemisphere, and the sun's direct point at position C is judged as the winter solstice in the northern hemisphere, so b stands for the autumnal equinox and d stands for the vernal equinox.

(2) The fastest revolution speed of the earth is perihelion (65438+1early October), which is closest to the position C of the winter solstice; The slowest revolution speed is apohelion (early July), which is closest to the position A of summer solstice.

(3) The rainy season in Shanghai is from mid-late June to early July, which is closest to the summer solstice. In summer in the southern hemisphere, extreme days appear in the Antarctic region, which is most conducive to Antarctic scientific investigation, so it is closest to the winter solstice C in the northern hemisphere.

(4)BD is located at the vernal equinox and autumnal equinox, and the direct point of the sun is located at the equator. The direct sunlight point at position A is located on the tropic of cancer, and the direct sunlight point at position C is located on the tropic of cancer.

Comments: This question is not difficult and has a strong foundation. The key to solve the problem is to master the latitude position of the direct point of the sun in the map and judge the bisector of the sun.