2. According to the degree of influence, the author arranges the four factors that determine phenology in turn, latitude has the greatest influence, longitude takes the second place, height difference takes the second place, and ancient and modern difference takes the second place. In addition, the first three are all spatial factors, and the fourth is time factor, which is a supporting order from space to time. This arrangement makes the article clear.
3. List the figures, give examples and compare them.
It is necessary to give two examples. This is because the temperature in the offshore area is generally considered to be higher than that in the mainland area. In fact, the spring in the offshore area is colder than that in the inland. This is a phenomenon that readers are unfamiliar with. Just one example, the reader will think it is accidental. Give two examples, and the reader will be convinced. ?
Because the air is heavy, cold air will flow to a lower place on a windless night. (That's right)