(1)地球公转;自西向东; (2)地球自转;一天; (3)海拔; (4)C.
(1)北 (2)自西向东 ; (3)西北;北
(1) (2)45°W、23.5°S; (3)西北.
(1)
(2)B;D;24小时; (3)正西;赤道; (4)极昼;北温.
(1)A; (2)中山站;有;东南; (3);
(4)D; (5)冰川消融、冰层变薄等; (6)炎热干燥.