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“我国一艘海洋考察船于十二月三日十二时(北京时间)从上海启航,航行二十天另三小时到达于西径120°南纬75°的研究地点(西八区)。又整一个月后航经澳大利亚的悉尼,再继续航行考察整两个月后回到上海。试问: 1、到达研究地点时,当地是几月几日几时?是白天还是夜晚?为什么? 2、航经悉尼时,悉尼是什么季节?为什么? 3、回到上海时,上海的昼夜长短如何?为什么?
”A Chinese marine expedition vessel set sail from Shanghai at 12 o’clock on December 3 (Beijing time) and sailed for another three hours in twenty days to arrive at a study site at 120 degrees south latitude and 75 degrees south latitude. After a full month, sail through Sydney, Australia, and then continue sailing to investigate and return to Shanghai after two months.How to ask: 1. When I arrived at the study site, what time was it in a few days in a few months, whether it was day or night, and why? 2. What is Sydney’s season when sailing through Sydney and why? 3. When Shanghai returned to Shanghai, how long did the night stay and why?