Read the map of the earth's revolution and answer the following questions (1). Write down the solar terms in four places: A _ _ _ _ _, B _ _ _ _ _, C _ _ _ _ _, D _ _ _ _. (2) 165438+ October.

(1) Reading the picture shows that A is the summer solstice, B is the autumnal equinox, C is the winter solstice, and D is the vernal equinox;

(2) On June 1 65438+1October1day, the revolution position of the earth should be between the autumnal equinox position and the winter solstice position;

(3) When the day is the longest and the night is the shortest in the northern hemisphere, the earth is in position A, that is, the summer solstice;

(4) From position C to position D, the daytime time in the northern hemisphere will gradually become longer and the nighttime time will gradually become shorter.

So the answer is:

(1) Summer solstice; Autumnal equinox; Solstice of winter; Vernal equinox;

(2)B； c；

(3) a;

(4) extension; Shorten.