【題目】下列自然現(xiàn)象主要由地球自轉(zhuǎn)造成的是（　�。�

A. 晝夜長短的變化B. 四季變化現(xiàn)象

C. 晝夜現(xiàn)象D. 晝夜交替現(xiàn)象

【答案】D

【解析】

根據(jù)地球繞地軸在不停的旋轉(zhuǎn)，是地球的自轉(zhuǎn)。地球自轉(zhuǎn)的方向是自西向東，自轉(zhuǎn)的周期是24小時(shí)即一天。地球自轉(zhuǎn)產(chǎn)生的地理現(xiàn)象，是晝夜交替和時(shí)間差異；地球繞太陽的運(yùn)動(dòng)，是地球的公轉(zhuǎn)。地球公轉(zhuǎn)的方向是自西向東，公轉(zhuǎn)的周期是365天即一年。公轉(zhuǎn)產(chǎn)生的現(xiàn)象，是四季交替，進(jìn)行分析解答。

地軸是傾斜的，地軸與地球公轉(zhuǎn)軌道面之間存在66.5°的夾角，因此地球公轉(zhuǎn)過程中太陽直射點(diǎn)會(huì)在南北回歸線之間移動(dòng)，太陽直射點(diǎn)的移動(dòng)導(dǎo)致晨昏線的擺動(dòng)，由此，晝夜長短變化不一，故A錯(cuò)誤；

四季變化現(xiàn)象是由于地球公轉(zhuǎn)形成的，故B錯(cuò)誤；

地球被太陽照射的一面是晝半球，背向太陽的一面是夜半球．地球即使不自轉(zhuǎn)，也有晝夜現(xiàn)象，只是不存在晝夜的交替，故C錯(cuò)誤；

地球自轉(zhuǎn)產(chǎn)生了晝夜交替和時(shí)間差異現(xiàn)象，故D正確；

故選：D。

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