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主题群:自然生态 子主题:自然现象 语篇类型:说明文 难度:★★
① Is the sky bluer in autumn than in summer? The answer is yes! There are real reasons for this.
② The 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 our horizon. Instead, it is closer to the earth and more blue light is scattered(散射). This makes the sky seem bluer.
③ In 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.
④ You 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.
⑤ So, 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!
任务一 选择正确答案
1.（创新考法·行文方式）How does the writer introduce 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.（创新考法·图片理解）Which one shows the relationship between the water in the air (x) and the blue colour of the sky (y)?
4.（创新考法·篇章结构）What is the structure of the passage?
A. ①/②③④/⑤
B. ①②/③④/⑤
C. ①②/③/④⑤
D. ①②③/④/⑤
任务二 回答问题(每个题目的答案不超过5个单词)
1. What is autumn famous for?
2. What can make the sky seem even bluer in autumn according to Paragraph 4?
3. Why does the sky look more open and brighter in autumn?
4. What word(s) can you use to describe autumn?
① Is the sky bluer in autumn than in summer? The answer is yes! There are real reasons for this.
② The 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 our horizon. Instead, it is closer to the earth and more blue light is scattered(散射). This makes the sky seem bluer.
③ In 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.
④ You 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.
⑤ So, 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!
任务一 选择正确答案
1.（创新考法·行文方式）How does the writer introduce 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.（创新考法·图片理解）Which one shows the relationship between the water in the air (x) and the blue colour of the sky (y)?
4.（创新考法·篇章结构）What is the structure of the passage?
A. ①/②③④/⑤
B. ①②/③④/⑤
C. ①②/③/④⑤
D. ①②③/④/⑤
任务二 回答问题(每个题目的答案不超过5个单词)
1. What is autumn famous for?
Good weather.
2. What can make the sky seem even bluer in autumn according to Paragraph 4?
The colourful leaves.
3. Why does the sky look more open and brighter in autumn?
Because of fewer clouds.
4. What word(s) can you use to describe autumn?
Beautiful. /Cool. /Blue.
答案
任务一
1～2. AB
3. B 图片理解题。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,当天空中很少有或没有云覆盖时,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。
4. A 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。
任务二
1. Good weather.
2. The colourful leaves.
3. Because of fewer clouds.
4. Beautiful. /Cool. /Blue.(答案不唯一)
1～2. AB
3. B 图片理解题。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,当天空中很少有或没有云覆盖时,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。
4. A 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。
任务二
1. Good weather.
2. The colourful leaves.
3. Because of fewer clouds.
4. Beautiful. /Cool. /Blue.(答案不唯一)
解析
【分析】
本题为自然生态主题的英语阅读理解题，分为任务一（选择题）和任务二（简答题）。解题思路：任务一的选择题需定位原文对应信息，结合题型要求分析：1题判断第一段引入话题的方式，2题提取第二段关于天空更蓝的原因，3题分析x（空气中的水）与y（天空蓝色）的变量关系，4题划分文章结构；任务二的简答题需从原文提取关键信息，严格控制答案字数。
【解析】
任务一：
1. 第一段以问句“Is the sky bluer in autumn than in summer?”引入话题，属于提问方式，故选A。
2. 第二段提到“it is closer to the earth and more blue light is scattered”，说明太阳更靠近地球是天空更蓝的原因，故选B。
3. 根据原文“空气中水分越少，天空蓝色越明显”，即x（水分）增大时，y（蓝色）减小，对应下降的直线，选B。
4. 第一段提出问题并给出答案，②③④分别解释三个原因，第五段总结，结构为①/②③④/⑤，选A。
任务二：
1. 第三段明确“Autumn is known for good weather”，故答案为Good weather.
2. 第四段指出“the colourful leaves of autumn actually help give the sky's blueness a colour boost”，故答案为The colourful leaves.
3. 第三段提到“there are fewer clouds... the blue colour of the sky shows more clearly”，故答案为Because of fewer clouds.
4. 原文提到秋天天气好、天空蓝、树叶多彩等，可描述为Beautiful等，符合要求即可。
【答案】
任务一：1～2. AB；3. B；4. A
任务二：1. Good weather. 2. The colourful leaves. 3. Because of fewer clouds. 4. Beautiful.（答案不唯一，合理即可）
【知识点】
英语阅读理解、细节理解、篇章结构
【点评】
本题围绕自然生态主题展开，涵盖细节理解、篇章结构、图片理解等题型，要求学生精准定位原文信息，结合图表分析变量关系，注重信息提取与逻辑分析能力，是典型的初中英语阅读理解题。
【难度系数】
0.6
本题为自然生态主题的英语阅读理解题，分为任务一（选择题）和任务二（简答题）。解题思路：任务一的选择题需定位原文对应信息，结合题型要求分析：1题判断第一段引入话题的方式，2题提取第二段关于天空更蓝的原因，3题分析x（空气中的水）与y（天空蓝色）的变量关系，4题划分文章结构；任务二的简答题需从原文提取关键信息，严格控制答案字数。
【解析】
任务一：
1. 第一段以问句“Is the sky bluer in autumn than in summer?”引入话题，属于提问方式，故选A。
2. 第二段提到“it is closer to the earth and more blue light is scattered”，说明太阳更靠近地球是天空更蓝的原因，故选B。
3. 根据原文“空气中水分越少，天空蓝色越明显”，即x（水分）增大时，y（蓝色）减小，对应下降的直线，选B。
4. 第一段提出问题并给出答案，②③④分别解释三个原因，第五段总结，结构为①/②③④/⑤，选A。
任务二：
1. 第三段明确“Autumn is known for good weather”，故答案为Good weather.
2. 第四段指出“the colourful leaves of autumn actually help give the sky's blueness a colour boost”，故答案为The colourful leaves.
3. 第三段提到“there are fewer clouds... the blue colour of the sky shows more clearly”，故答案为Because of fewer clouds.
4. 原文提到秋天天气好、天空蓝、树叶多彩等，可描述为Beautiful等，符合要求即可。
【答案】
任务一：1～2. AB；3. B；4. A
任务二：1. Good weather. 2. The colourful leaves. 3. Because of fewer clouds. 4. Beautiful.（答案不唯一，合理即可）
【知识点】
英语阅读理解、细节理解、篇章结构
【点评】
本题围绕自然生态主题展开，涵盖细节理解、篇章结构、图片理解等题型，要求学生精准定位原文信息，结合图表分析变量关系，注重信息提取与逻辑分析能力，是典型的初中英语阅读理解题。
【难度系数】
0.6
