【題目】下列現(xiàn)象由地球自轉(zhuǎn)引起的是（）

A.我國大部分地區(qū)四季分明B.天安門廣場升國旗的時間冬季比夏季晚

C.極地地區(qū)有極晝、極夜現(xiàn)象D.時間差現(xiàn)象

【答案】D

【解析】

地球繞地軸不停轉(zhuǎn)動，叫地球自轉(zhuǎn)。地球自轉(zhuǎn)的方向是自西向東，自轉(zhuǎn)的周期是一天。地球自轉(zhuǎn)產(chǎn)生的現(xiàn)象是晝夜交替、日月星辰東升西落和時間差異。地球在自轉(zhuǎn)的同時還要繞著太陽轉(zhuǎn)動叫地球公轉(zhuǎn)，地球公轉(zhuǎn)的方向是自西向東，公轉(zhuǎn)的周期是一年。地球圍繞太陽公轉(zhuǎn)產(chǎn)生了四季變化、正午太陽高度的變化、晝夜長短的變化等。

地球繞地軸不停轉(zhuǎn)動，叫地球自轉(zhuǎn)，地球自轉(zhuǎn)產(chǎn)生的現(xiàn)象是晝夜交替、日月星辰東升西落和時間差異；地球圍繞太陽公轉(zhuǎn)產(chǎn)生了四季變化、正午太陽高度的變化、晝夜長短的變化等。 “我國大部分地區(qū)四季分明”、 “天安門廣場升國旗的時間冬季比夏季晚”、“極地地區(qū)有極晝、極夜現(xiàn)象”是由地球公轉(zhuǎn)產(chǎn)生， “時間差現(xiàn)象”是由地球自轉(zhuǎn)產(chǎn)生。故選：D。

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