【題目】北京時間(東八區(qū))2017年4月22日12時23分,我國天舟一號和天宮二號順利完成自動交會對接。據(jù)此完成下列各題。

1居住在英國倫敦的華人華僑收看了衛(wèi)星發(fā)射實況轉(zhuǎn)播,完成自動交會對接時,倫敦時間(零時區(qū))為

A. 12時23分 B. 8時23分 C. 4時23分 D. 0時23分

2造成兩地時間不同的原因是

A. 地球是個橢球體 B. 地球的公轉(zhuǎn) C. 地球是靜止不動的 D. 地球的自轉(zhuǎn)

【答案】

1C

2D

【解析】

1我國采用北京所在的東八區(qū)的區(qū)時,與零時區(qū)的倫敦時間相差8小時,按照東加西減的原則,倫敦時間為4時23分。

2地球自轉(zhuǎn)是地球繞地軸自西向東轉(zhuǎn)動的運(yùn)動方式,其周期為一天。我們每天經(jīng)歷的晝夜更替,時區(qū)的變化(東面的時間早于西面的時間),日月星辰的東升西落,主要是由于地球自轉(zhuǎn)運(yùn)動所產(chǎn)生的地理現(xiàn)象。居住在英國倫敦的華人和華僑在當(dāng)?shù)貢r間2017年4月22日23點(diǎn)23分收看了衛(wèi)星發(fā)射實況轉(zhuǎn)播,是地球自轉(zhuǎn)造成的兩地時間不同。

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