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Ⅱ. 科学探究 David 研究了夏秋更迭时天空颜色的秘密，让人感叹四季的变换真是充满了学问！
①Is the sky bluer in autumn than in summer? The answer is yes! There are some reasons for this.
②The sun is lower in the sky in autumn. As the days get shorter, the sun appears lower and lower in the sky. It doesn't shine directly on us anymore. Instead, it is closer to the earth and more blue light is scattered(散射). This makes the sky seem bluer.
③In autumn, there is less water in the air, so there are fewer clouds. Autumn is known for good weather—cooler temperatures and less wet air. The air does not hold much water, so clouds do not form easily. When there are few or no clouds covering the sky, the blue colour of the sky shows more clearly, and the sky looks more open and brighter.
④You might be surprised, but the colourful leaves of autumn actually help give the sky's blueness a colour boost(增强), which can make the sky seem even bluer. If you've made a colour wheel for an art class, you know that blue and orange are opposite colours that look good together. The red, orange, and gold leaves of autumn make the blue sky stand out beautifully against them. This contrast looks nice and creates a special autumn view.
⑤So, the next time you're out enjoying the beautiful weather in autumn, take a moment to look up at the sky, remember these reasons why it looks so blue and enjoy the view!
1. 新考法 写作手法 How does the writer lead into the topic in Paragraph 1?
A. By asking a question.
B. By telling a joke.
C. By using an old saying.
D. By making a survey.
2. Why does the sky look bluer in autumn according to Paragraph 2?
A. Because the sun is shining directly on us.
B. Because the sun is closer to the earth.
C. Because the sun is smaller in the sky.
D. Because the sun is covered by the clouds.
3. 跨学科 数学 Which one shows the relationship between the water in the air(x) and the blue colour of the sky(y)?
4. 新考法 篇章结构 What is the structure of the passage?
A. ①/②③④/⑤
B. ①/②③/④⑤
C. ①②/③/④⑤
D. ①②③/④/⑤
Task: Give an example of a scientific phenomenon that happens during the changes of seasons and try to explain why it happens.
①Is the sky bluer in autumn than in summer? The answer is yes! There are some reasons for this.
②The sun is lower in the sky in autumn. As the days get shorter, the sun appears lower and lower in the sky. It doesn't shine directly on us anymore. Instead, it is closer to the earth and more blue light is scattered(散射). This makes the sky seem bluer.
③In autumn, there is less water in the air, so there are fewer clouds. Autumn is known for good weather—cooler temperatures and less wet air. The air does not hold much water, so clouds do not form easily. When there are few or no clouds covering the sky, the blue colour of the sky shows more clearly, and the sky looks more open and brighter.
④You might be surprised, but the colourful leaves of autumn actually help give the sky's blueness a colour boost(增强), which can make the sky seem even bluer. If you've made a colour wheel for an art class, you know that blue and orange are opposite colours that look good together. The red, orange, and gold leaves of autumn make the blue sky stand out beautifully against them. This contrast looks nice and creates a special autumn view.
⑤So, the next time you're out enjoying the beautiful weather in autumn, take a moment to look up at the sky, remember these reasons why it looks so blue and enjoy the view!
1. 新考法 写作手法 How does the writer lead into the topic in Paragraph 1?
A. By asking a question.
B. By telling a joke.
C. By using an old saying.
D. By making a survey.
2. Why does the sky look bluer in autumn according to Paragraph 2?
A. Because the sun is shining directly on us.
B. Because the sun is closer to the earth.
C. Because the sun is smaller in the sky.
D. Because the sun is covered by the clouds.
3. 跨学科 数学 Which one shows the relationship between the water in the air(x) and the blue colour of the sky(y)?
4. 新考法 篇章结构 What is the structure of the passage?
A. ①/②③④/⑤
B. ①/②③/④⑤
C. ①②/③/④⑤
D. ①②③/④/⑤
Task: Give an example of a scientific phenomenon that happens during the changes of seasons and try to explain why it happens.
Frost forming in autumn. Frost forming in autumn happens when cold air (below 0℃) meets wet air near the ground, turning water vapour in the wet air into ice crystals.(答案不唯一,言之有理即可)
答案
1.A 2.B 3.B 4.A
【语篇解读】本文是一篇说明文。文章主要探讨了秋天天空比夏天更蓝的原因,并鼓励读者在秋天欣赏美丽天空的同时,记住这些使天空更加蔚蓝的原因。
1. A 解析:写作手法题。根据"Is the sky bluer in autumn than in summer?"可知,作者是通过提出一个问题来引入话题的。故选A。
2. B 解析:细节理解题。根据"Instead, it is closer to the earth and more blue light is scattered. This makes the sky seem bluer."可知,秋天的天空看起来更蓝是因为太阳离地球更近。故选B。
3. B 解析:图示理解题。根据"The air does not hold much water, so clouds do not form easily. When there are few or no clouds covering the sky, the blue colour of the sky shows more clearly, and the sky looks more open and brighter."可知,空气中没有多少水分,所以云不容易形成,当天空很少或没有云覆盖时,天空的蓝色更明显,天空看起来更开阔,更明亮。由此可知,空气中的水分越少,天空的蓝色越明显,即空气中的水分越多,天空的蓝色越不明显。故选B。
4. A 解析:篇章结构题。通读全文可知,第一段提出了问题并给出了直接的答案;第二、三、四段分别解释了三个原因;第五段鼓励读者在秋天欣赏美丽的天空,并记住这些原因。故选A。
Task: Frost forming in autumn. Frost forming in autumn happens when cold air (below $0°C$) meets wet air near the ground, turning water vapour in the wet air into ice crystals.(答案不唯一,言之有理即可) 解析:需写出季节变换中的科学现象并解释原因,合理即可。
【语篇解读】本文是一篇说明文。文章主要探讨了秋天天空比夏天更蓝的原因,并鼓励读者在秋天欣赏美丽天空的同时,记住这些使天空更加蔚蓝的原因。
1. A 解析:写作手法题。根据"Is the sky bluer in autumn than in summer?"可知,作者是通过提出一个问题来引入话题的。故选A。
2. B 解析:细节理解题。根据"Instead, it is closer to the earth and more blue light is scattered. This makes the sky seem bluer."可知,秋天的天空看起来更蓝是因为太阳离地球更近。故选B。
3. B 解析:图示理解题。根据"The air does not hold much water, so clouds do not form easily. When there are few or no clouds covering the sky, the blue colour of the sky shows more clearly, and the sky looks more open and brighter."可知,空气中没有多少水分,所以云不容易形成,当天空很少或没有云覆盖时,天空的蓝色更明显,天空看起来更开阔,更明亮。由此可知,空气中的水分越少,天空的蓝色越明显,即空气中的水分越多,天空的蓝色越不明显。故选B。
4. A 解析:篇章结构题。通读全文可知,第一段提出了问题并给出了直接的答案;第二、三、四段分别解释了三个原因;第五段鼓励读者在秋天欣赏美丽的天空,并记住这些原因。故选A。
Task: Frost forming in autumn. Frost forming in autumn happens when cold air (below $0°C$) meets wet air near the ground, turning water vapour in the wet air into ice crystals.(答案不唯一,言之有理即可) 解析:需写出季节变换中的科学现象并解释原因,合理即可。
解析
【分析】
1. 第1题（写作手法题）：先定位第一段，作者以问句开篇引入话题，判断引入方式；2. 第2题（细节理解题）：定位第二段，查找天空更蓝的原因；3. 第3题（跨学科图示题）：明确x为空气中水分、y为天空蓝色程度，根据原文逻辑判断两者关系，匹配对应图像；4. 第4题（篇章结构题）：梳理各段落功能，划分文章结构；Task部分需选取季节变换的科学现象并结合原理解释。
【解析】
1. 第1题：根据第一段首句“Is the sky bluer in autumn than in summer?”，作者通过提出问题引入话题，故选A。
2. 第2题：根据第二段“Instead, it is closer to the earth and more blue light is scattered. This makes the sky seem bluer.”，可知天空更蓝是因为太阳离地球更近，故选B。
3. 第3题：根据第三段“空气水分少→云少→天空蓝色更明显”，即空气中水分（x）越多，天空蓝色（y）越弱，呈负相关，对应下降的直线图像B，故选B。
4. 第4题：通读全文，①段引入话题，②③④段阐述天空更蓝的三个原因，⑤段总结鼓励读者，结构为①/②③④/⑤，故选A。
Task示例：选取秋季结霜现象，解释为近地面冷空气（低于0℃）遇潮湿空气，水蒸气凝结成冰晶形成霜，符合季节变换的科学原理。
【答案】
1.A 2.B 3.B 4.A
Task: Frost forming in autumn. Frost forming in autumn happens when cold air (below 0°C) meets wet air near the ground, turning water vapour in the wet air into ice crystals.
【知识点】
英语阅读理解、写作手法、语篇结构
【点评】
本题结合科学探究主题，融入跨学科（数学）考查，涵盖写作手法、细节理解、图示分析、篇章结构等阅读核心能力，Task部分注重知识拓展应用，符合新考法要求，兼具知识性与趣味性。
【难度系数】
0.6
1. 第1题（写作手法题）：先定位第一段，作者以问句开篇引入话题，判断引入方式；2. 第2题（细节理解题）：定位第二段，查找天空更蓝的原因；3. 第3题（跨学科图示题）：明确x为空气中水分、y为天空蓝色程度，根据原文逻辑判断两者关系，匹配对应图像；4. 第4题（篇章结构题）：梳理各段落功能，划分文章结构；Task部分需选取季节变换的科学现象并结合原理解释。
【解析】
1. 第1题：根据第一段首句“Is the sky bluer in autumn than in summer?”，作者通过提出问题引入话题，故选A。
2. 第2题：根据第二段“Instead, it is closer to the earth and more blue light is scattered. This makes the sky seem bluer.”，可知天空更蓝是因为太阳离地球更近，故选B。
3. 第3题：根据第三段“空气水分少→云少→天空蓝色更明显”，即空气中水分（x）越多，天空蓝色（y）越弱，呈负相关，对应下降的直线图像B，故选B。
4. 第4题：通读全文，①段引入话题，②③④段阐述天空更蓝的三个原因，⑤段总结鼓励读者，结构为①/②③④/⑤，故选A。
Task示例：选取秋季结霜现象，解释为近地面冷空气（低于0℃）遇潮湿空气，水蒸气凝结成冰晶形成霜，符合季节变换的科学原理。
【答案】
1.A 2.B 3.B 4.A
Task: Frost forming in autumn. Frost forming in autumn happens when cold air (below 0°C) meets wet air near the ground, turning water vapour in the wet air into ice crystals.
【知识点】
英语阅读理解、写作手法、语篇结构
【点评】
本题结合科学探究主题，融入跨学科（数学）考查，涵盖写作手法、细节理解、图示分析、篇章结构等阅读核心能力，Task部分注重知识拓展应用，符合新考法要求，兼具知识性与趣味性。
【难度系数】
0.6
