题目内容

【题目】下列现象,能说明地球是球体的是( )

①月食现象 ②日月星辰的东升西落 ③麦哲伦环球航 ④北极星指向北方 ⑤地球卫星照片 ⑥海边看船驶来,先见桅杆后见船身

A. ①③④⑥ B. ②③④⑥ C. ①③⑤⑥ D. ②④⑤⑥

【答案】C

【解析】

根据地球是球体的证据,进行分析解答。人类对地球的认识经过了漫长的过程,从天圆地方→天如斗笠,地如覆盘→麦哲伦环球航行→地球的卫星照片,后来证实了地球是一个两极部位稍扁的不规则球体。

地球是两极部位略扁的不规则的球体。能证明地球形状的例子很多。月食尤其是月环食时,可以看到地球挡在太阳和月球之间的影子,月食就是地球在月亮上的投影,从形状可以证明地球是圆的,说明①是正确的;日、月都从天空东方升起,西方下落是地球自转造成的,与球形无关,故排除②。麦哲伦船队的环球航行证实了地球是一个球体,故③正确。北极星指向北方,说明北极指向北极星附近,不能说明地球是一个球体,故排除④。地球的卫星照片,可以看出地球是一个球体,故⑤正确;远处驶来的帆船总是先看到桅杆,再看到船身,能证明地球是球形,故正确。故选C。

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