C
新素材 科普知识 One of the most amazing natural wonders in the world is the Northern Lights, also known as the Aurora Borealis. This dazzling light show can be seen in the night sky near the North and South Poles, painting the darkness with shining lines of green, pink, purple, and sometimes even red. But what causes this magical phenomenon, and where can you see it?
The Northern Lights are a result of activity on the Sun. The Sun always sends out tiny energy particles(粒子) called solar wind. When these particles come to the Earth, they meet the Earth’s magnetic field(磁场) and move toward the North and South Poles. There, they hit gases in the air, mainly oxygen and nitrogen, and make them light up. The most common colour is green, which comes from oxygen. Nitrogen produces purple or pink colours. The colours you see depend on which gas gets hit and how high up in the sky this happens.
The best places to see the Northern Lights are in countries close to the Arctic Circle(北极圈), such as Norway, Sweden, Finland, Iceland, Canada, and Alaska of the USA. They are easiest to see during the winter months when nights are long and dark. Clear skies and locations far from city lights increase the chances of a good view. Some people even plan special trips just to witness this great view, waiting patiently in the cold for the lights to appear.
For centuries, people have been attracted by the Northern Lights. Ancient cultures believed they were spirits dancing in the sky or messages from the gods. Today, scientists study them to understand more about space weather and how solar activity influences the Earth. But for most of us, the Northern Lights remain a beautiful mystery—a reminder of how amazing our planet and space truly are. If you ever get the chance to see them, it will surely be an unforgettable experience.
()30. What’s the main cause of the Northern Lights?
A. Ice shining in the sky.
B. Tiny pieces from the Sun hitting the Earth’s air.
C. City lights near cold places.
D. Lightning in the Arctic Circle.
()31. Which is the best place to watch the Northern Lights?
A. Hot places near the equator.
B. Big cities with lots of lights.
C. Cold countries near the North Pole.
D. Beaches with warm weather.
()32. What does the writer mean by “a beautiful mystery” in the last paragraph?
A. We know everything about them now.
B. They’re pretty, but they hold secrets.
C. They’re amazing, like spirits dancing in the sky.
D. They’re the messages from the gods.
新素材 科普知识 One of the most amazing natural wonders in the world is the Northern Lights, also known as the Aurora Borealis. This dazzling light show can be seen in the night sky near the North and South Poles, painting the darkness with shining lines of green, pink, purple, and sometimes even red. But what causes this magical phenomenon, and where can you see it?
The Northern Lights are a result of activity on the Sun. The Sun always sends out tiny energy particles(粒子) called solar wind. When these particles come to the Earth, they meet the Earth’s magnetic field(磁场) and move toward the North and South Poles. There, they hit gases in the air, mainly oxygen and nitrogen, and make them light up. The most common colour is green, which comes from oxygen. Nitrogen produces purple or pink colours. The colours you see depend on which gas gets hit and how high up in the sky this happens.
The best places to see the Northern Lights are in countries close to the Arctic Circle(北极圈), such as Norway, Sweden, Finland, Iceland, Canada, and Alaska of the USA. They are easiest to see during the winter months when nights are long and dark. Clear skies and locations far from city lights increase the chances of a good view. Some people even plan special trips just to witness this great view, waiting patiently in the cold for the lights to appear.
For centuries, people have been attracted by the Northern Lights. Ancient cultures believed they were spirits dancing in the sky or messages from the gods. Today, scientists study them to understand more about space weather and how solar activity influences the Earth. But for most of us, the Northern Lights remain a beautiful mystery—a reminder of how amazing our planet and space truly are. If you ever get the chance to see them, it will surely be an unforgettable experience.
()30. What’s the main cause of the Northern Lights?
A. Ice shining in the sky.
B. Tiny pieces from the Sun hitting the Earth’s air.
C. City lights near cold places.
D. Lightning in the Arctic Circle.
()31. Which is the best place to watch the Northern Lights?
A. Hot places near the equator.
B. Big cities with lots of lights.
C. Cold countries near the North Pole.
D. Beaches with warm weather.
()32. What does the writer mean by “a beautiful mystery” in the last paragraph?
A. We know everything about them now.
B. They’re pretty, but they hold secrets.
C. They’re amazing, like spirits dancing in the sky.
D. They’re the messages from the gods.
答案：30. B 【解析】根据第二段中“The Sun always sends out tiny energy particles called solar wind. When these particles come to the Earth... they hit gases in the air，mainly oxygen and nitrogen，and make them light up.”可知，太阳发出的微小粒子（太阳风）来到地球，与地球磁场相遇并移向南北极，在那里撞击空气中的气体使其发光，所以北极光的主要成因是来自太阳的微小粒子撞击地球的空气。
31. C
32. B 【解析】根据最后一段内容可知，古代文化认为北极光是天空中跳舞的神灵或来自神灵的信息，如今科学家研究它们以了解更多关于太空天气的信息以及太阳活动对地球的影响，对于大多数人来说，北极光既美丽又存在很多未知等待探索。由此可推知，“a beautiful mystery”指北极光很漂亮，但它们也隐藏着秘密。
31. C
32. B 【解析】根据最后一段内容可知，古代文化认为北极光是天空中跳舞的神灵或来自神灵的信息，如今科学家研究它们以了解更多关于太空天气的信息以及太阳活动对地球的影响，对于大多数人来说，北极光既美丽又存在很多未知等待探索。由此可推知，“a beautiful mystery”指北极光很漂亮，但它们也隐藏着秘密。
解析：
翻译:
### 科普知识
世界上最令人惊叹的自然奇观之一是北极光，也被称为北极光（Aurora Borealis）。在南北极附近的夜空中可以看到这场耀眼的灯光秀，它用绿色、粉色、紫色，有时甚至是红色的闪亮线条描绘着黑暗。但是什么导致了这种神奇的现象，又在哪里可以看到它呢？
北极光是太阳活动的结果。太阳总是会发出被称为太阳风的微小能量粒子。当这些粒子到达地球时，它们会遇到地球的磁场并向南北两极移动。在那里，它们撞击空气中的气体，主要是氧气和氮气，并使它们发光。最常见的颜色是绿色，它来自氧气。氮气会产生紫色或粉色。你看到的颜色取决于哪种气体被撞击以及这种情况发生在天空中的多高位置。
观赏北极光的最佳地点是在靠近北极圈的国家，如挪威、瑞典、芬兰、冰岛、加拿大和美国的阿拉斯加。在冬季的几个月里，夜晚漫长而黑暗，它们最容易被看到。晴朗的天空和远离城市灯光的位置增加了看到良好景象的机会。有些人甚至会计划特别的旅行只是为了见证这一壮丽的景色，在寒冷中耐心等待灯光出现。
几个世纪以来，人们一直被北极光所吸引。古代文化认为它们是在天空中跳舞的灵魂或来自众神的信息。如今，科学家们研究它们以更多地了解空间天气以及太阳活动如何影响地球。但对我们大多数人来说，北极光仍然是一个美丽的谜——它提醒着我们的星球和太空是多么令人惊叹。如果你有机会看到它们，那肯定会是一次难忘的经历。
30. 北极光的主要成因是什么？
A. 天空中闪耀的冰。
B. 来自太阳的微小碎片撞击地球的空气。
C. 寒冷地区附近的城市灯光。
D. 北极圈的闪电。
31. 哪个是观赏北极光的最佳地点？
A. 赤道附近的炎热地区。
B. 有很多灯光的大城市。
C. 北极附近的寒冷国家。
D. 天气温暖的海滩。
32. 作者在最后一段中用“一个美丽的谜”是什么意思？
A. 我们现在对它们了如指掌。
B. 它们很漂亮，但却隐藏着秘密。
C. 它们很神奇，就像在天空中跳舞的灵魂。
D. 它们是来自众神的信息。
### 科普知识
世界上最令人惊叹的自然奇观之一是北极光，也被称为北极光（Aurora Borealis）。在南北极附近的夜空中可以看到这场耀眼的灯光秀，它用绿色、粉色、紫色，有时甚至是红色的闪亮线条描绘着黑暗。但是什么导致了这种神奇的现象，又在哪里可以看到它呢？
北极光是太阳活动的结果。太阳总是会发出被称为太阳风的微小能量粒子。当这些粒子到达地球时，它们会遇到地球的磁场并向南北两极移动。在那里，它们撞击空气中的气体，主要是氧气和氮气，并使它们发光。最常见的颜色是绿色，它来自氧气。氮气会产生紫色或粉色。你看到的颜色取决于哪种气体被撞击以及这种情况发生在天空中的多高位置。
观赏北极光的最佳地点是在靠近北极圈的国家，如挪威、瑞典、芬兰、冰岛、加拿大和美国的阿拉斯加。在冬季的几个月里，夜晚漫长而黑暗，它们最容易被看到。晴朗的天空和远离城市灯光的位置增加了看到良好景象的机会。有些人甚至会计划特别的旅行只是为了见证这一壮丽的景色，在寒冷中耐心等待灯光出现。
几个世纪以来，人们一直被北极光所吸引。古代文化认为它们是在天空中跳舞的灵魂或来自众神的信息。如今，科学家们研究它们以更多地了解空间天气以及太阳活动如何影响地球。但对我们大多数人来说，北极光仍然是一个美丽的谜——它提醒着我们的星球和太空是多么令人惊叹。如果你有机会看到它们，那肯定会是一次难忘的经历。
30. 北极光的主要成因是什么？
A. 天空中闪耀的冰。
B. 来自太阳的微小碎片撞击地球的空气。
C. 寒冷地区附近的城市灯光。
D. 北极圈的闪电。
31. 哪个是观赏北极光的最佳地点？
A. 赤道附近的炎热地区。
B. 有很多灯光的大城市。
C. 北极附近的寒冷国家。
D. 天气温暖的海滩。
32. 作者在最后一段中用“一个美丽的谜”是什么意思？
A. 我们现在对它们了如指掌。
B. 它们很漂亮，但却隐藏着秘密。
C. 它们很神奇，就像在天空中跳舞的灵魂。
D. 它们是来自众神的信息。