Read the pictures below and complete the following questions. (10) (1) When the earth is in positions A, B, C and D, the solar terms represented are A _ _ _ _ _ _ and B__ respectively.

A summer

Read the pictures below and complete the following questions. (10) (1) When the earth is in positions A, B, C and D, the solar terms represented are A _ _ _ _ _ _ and B__ respectively.

A summer solstice? Autumn equinox? C winter solstice d vernal equinox

(2) fast-slow-fast (slow first and then fast)? In the south

(3) communication

(4) BD 6 points

Test and analysis: (1) According to the latitude position of the sun's direct point, it is judged that 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 represents the autumnal equinox and d represents 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. When the earth moves from a to c,

(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. When the direct point of the sun is on the equator, the world divides day and night equally. At this time, the sunrise time in Qionghai is 6 o'clock and the sunset time is 18.

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.