Question

上图是北极圈上某地上空看到的地球12月22日的昼夜分布示意图，C点为极点，阴影部分表示夜半球。读图回答。

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

   （1）图中各点，              点表示太阳直射点，该点的地理坐标为              。

（2）此刻，全球以              经线和              经线为界分属两个日期。北京时间是              时。

   （3）下图中，与F点昼夜状况吻合的是              。

   （4）120°E经线经过我国最大的城市群，试说明该城市群形成的有利条件。

Answer 1

（1）B（23°26′S，120°E）。

（2）60°W（或67.5°W）180°  12

（3）丙

（4）地势平坦；气候适宜；水源充足；交通便利；经济发达；人口稠密；政策支持。