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阅读理解。
No two snowflakes are the same. They have many shapes and fall in four different ways. By watching how they “dance”, we can tell what the weather will be like.
It’s difficult to see snowflakes dancing with our eyes. Scientists can use high-speed(高速的) cameras to watch them. Weathermen can use radar(雷达) to study these dances to know about the weather.
| How do they dance? | What’s the weather like? |
| --- | --- |
| Fall in a line: They fall slowly.（雪花图标，向下箭头）；Zigzag: They shake a bit back and forth as they
fall.（雪花图标，折线箭头） | With these two dances, snowflakes may melt into rain or bring light snow. |
| Spin(快速旋转): They fall at a high speed.（雪花图标，旋转虚线）；Spin and zigzag: They hit each other and become bigger ones.（圆形图标，折线箭头） | Snowflakes with these two dances fall very fast and may bring heavy snow. |
1. In how many ways do snowflakes fall?
A. Five. B. Two. C. Four.
2. How can we know what the weather will be like according to the passage?
A. By watching how snowflakes “dance”.
B. By watching the colour of snowflakes.
C. By studying the shape of snowflakes.
3. The underlined word “melt” means “
A. 升华 B. 冰冻 C. 融化
4. What may the weather be like if snowflakes spin and zigzag quickly?
A. It may be sunny.
B. It may snow heavily.
C. It may be windy.
5. What is the best title of the passage?
A. The Secret Language of Snowflakes
B. How Snowflakes Fall and Help Predict the Weather
C. The Beautiful Shapes of Snowflakes
No two snowflakes are the same. They have many shapes and fall in four different ways. By watching how they “dance”, we can tell what the weather will be like.
It’s difficult to see snowflakes dancing with our eyes. Scientists can use high-speed(高速的) cameras to watch them. Weathermen can use radar(雷达) to study these dances to know about the weather.
| How do they dance? | What’s the weather like? |
| --- | --- |
| Fall in a line: They fall slowly.（雪花图标，向下箭头）；Zigzag: They shake a bit back and forth as they
fall.（雪花图标，折线箭头） | With these two dances, snowflakes may melt into rain or bring light snow. || Spin(快速旋转): They fall at a high speed.（雪花图标，旋转虚线）；Spin and zigzag: They hit each other and become bigger ones.（圆形图标，折线箭头） | Snowflakes with these two dances fall very fast and may bring heavy snow. |
1. In how many ways do snowflakes fall?
A. Five. B. Two. C. Four.
2. How can we know what the weather will be like according to the passage?
A. By watching how snowflakes “dance”.
B. By watching the colour of snowflakes.
C. By studying the shape of snowflakes.
3. The underlined word “melt” means “
C
” in Chinese.A. 升华 B. 冰冻 C. 融化
4. What may the weather be like if snowflakes spin and zigzag quickly?
A. It may be sunny.
B. It may snow heavily.
C. It may be windy.
5. What is the best title of the passage?
A. The Secret Language of Snowflakes
B. How Snowflakes Fall and Help Predict the Weather
C. The Beautiful Shapes of Snowflakes
答案
语篇解读＞本文主要介绍了雪花的飘落方式与天气状况之间的科学联系。
1.C 2.A
3.C 解析 词义猜测题。根据“snowflakes may melt into rain or bring light snow”可知，雪花可能会融化成雨或带来小雪，melt意为“融化”。故选C。
4.B
5.B 解析 最佳标题题。本文主要介绍了雪花的飘落方式与天气状况之间的科学联系。选项B“雪花如何飘落并帮助预测天气”最为合适。故选B。
1.C 2.A
3.C 解析 词义猜测题。根据“snowflakes may melt into rain or bring light snow”可知，雪花可能会融化成雨或带来小雪，melt意为“融化”。故选C。
4.B
5.B 解析 最佳标题题。本文主要介绍了雪花的飘落方式与天气状况之间的科学联系。选项B“雪花如何飘落并帮助预测天气”最为合适。故选B。
解析
【分析】本题是关于雪花飘落方式与天气关系的阅读理解选择题，共5小题。解题思路如下：1. 第1题需查找雪花飘落的方式数量，定位原文第一段相关内容；2. 第2题找判断天气的方法，定位原文第一段关键句；3. 第3题是词义猜测题，结合所在句语境推断单词含义；4. 第4题查找对应飘落方式的天气，定位表格中Spin and zigzag的相关描述；5. 第5题选最佳标题，需归纳全文核心内容。
【解析】1. 根据原文第一段“They have many shapes and fall in four different ways.”可知雪花有四种飘落方式，故选C。2. 根据原文第一段“By watching how they ‘dance’, we can tell what the weather will be like.”可知通过观察雪花“舞蹈”能判断天气，故选A。3. 根据“snowflakes may melt into rain or bring light snow”，雪花变成雨，可推断melt意为“融化”，故选C。4. 根据表格中“Spin and zigzag: ... Snowflakes with these two dances fall very fast and may bring heavy snow.”可知这种飘落方式可能带来大雪，故选B。5. 全文主要介绍雪花的飘落方式及其与天气预测的关系，B选项“雪花如何飘落并帮助预测天气”最贴合主旨，故选B。
【答案】1.C 2.A 3.C 4.B 5.B
【知识点】阅读理解、词义猜测、主旨大意
【点评】本题以表格辅助的形式呈现信息，考查学生快速定位细节、词义猜测及主旨归纳的能力，题型常规，难度适中，适合初中英语学习阶段巩固相关阅读技能。
【难度系数】0.7
【解析】1. 根据原文第一段“They have many shapes and fall in four different ways.”可知雪花有四种飘落方式，故选C。2. 根据原文第一段“By watching how they ‘dance’, we can tell what the weather will be like.”可知通过观察雪花“舞蹈”能判断天气，故选A。3. 根据“snowflakes may melt into rain or bring light snow”，雪花变成雨，可推断melt意为“融化”，故选C。4. 根据表格中“Spin and zigzag: ... Snowflakes with these two dances fall very fast and may bring heavy snow.”可知这种飘落方式可能带来大雪，故选B。5. 全文主要介绍雪花的飘落方式及其与天气预测的关系，B选项“雪花如何飘落并帮助预测天气”最贴合主旨，故选B。
【答案】1.C 2.A 3.C 4.B 5.B
【知识点】阅读理解、词义猜测、主旨大意
【点评】本题以表格辅助的形式呈现信息，考查学生快速定位细节、词义猜测及主旨归纳的能力，题型常规，难度适中，适合初中英语学习阶段巩固相关阅读技能。
【难度系数】0.7
