Connect the following solar terms with a straight line, the direct solar terms point and date in the northern hemisphere: a. March 2 1 or so, ① summer solstice &; ...

(1) The latitude of direct sunlight is the vernal equinox in the northern hemisphere when the equator moves northward, and the date is about March 2 1; When the sun shines directly on the Tropic of Cancer, it is the summer solstice in the northern hemisphere, and the date is around June 22; When the latitude of direct sunlight is the equator and moves south, it is the autumn equinox in the northern hemisphere, and the date is around September 23; When the latitude of direct sunlight is the tropic of Capricorn, it is the winter solstice in the northern hemisphere, and the date is around 65438+February 22.

So the answer is: