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【题目】公元前28年(即汉成帝河平元年),曾记载三月乙未,日出黄,有黑气大如钱,居日中央。据此回答下列问题。

【1】记载中所说的黑气是指:

A.耀斑 B.黑子 C.太阳风 D.日珥

【2】这种现象发生在太阳大气层的:

A.光球 B.色球 C.日冕 D.大气层之外

【3】太阳活动对地球的影响表现有:

A.扰乱地球上空的电离层,使地面的无线电 短波通讯受到影响,甚至中断

B.使地球气候异常,从而产生磁暴现象

C.在地球各地的夜空产生极光

D.使地球高层大气高速散逸到星际空间

【答案】

【1】B

【2】A

【3】A

【解析】

试题分析:

【1】太阳光球层表面的黑子,是因为黑子比其他地区的温度低而发黑,黑气大如钱,居日中央中黑气是指黑子。B正确。

【2】太阳黑子是在太阳的光球层上发生的一种太阳活动,是太阳活动中最基本、最明显的。黑子的多少标志太阳活动的强弱,B正确。

【3】太阳活动扰乱地球上空的电离层,使地面的无线电短波通讯受到影响,甚至中断,A正确;地球气候异常和磁暴没有直接关系;只在地球极地的夜空产生极光;对地球高层大气逃逸没有关系,BCD错误。

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