一、阅读理解

根据材料内容选择最佳答案。
()1. Where is lightning from according to the text?
A. Water. B. Ground. C. Thunderstorms. D. Shelter.
()2. What is safe to use during a thunderstorm?
A. Mobile phones. B. Telephones. C. Computers. D. Radios.
()3. What should you do when caught outside during a thunderstorm?
A. Stand up tall. B. Lie on the ground.
C. Cover your ears. D. Keep your heels(脚后跟)on the ground.
()4. What is the author's main purpose of writing the text?
A. To teach people to crouch when they meet lightning.
B. To tell people how to keep safe when they meet lightning.
C. To ask people to stay away from windows when they meet lightning.
D. To tell children how to lie on the ground when they meet lightning.
()5. Where might you read the text?
A. In a travel magazine. B. In a museum guidebook.
C. On a nature website. D. In science fiction.

1.C 2.A 3.C 4.B 5.C

【分析】
本题为英语阅读理解题，需结合原文内容逐一分析各题：
1. 第1题：定位原文找闪电的来源，对应第一段内容；
2. 第2题：定位雷暴时可使用的物品，对应“WHEN YOU HEAR THUNDER”板块的第三条；
3. 第3题：定位户外遇雷暴的注意事项，对应“WHEN YOU ARE CAUGHT OUTSIDE”板块的内容，逐一排除错误选项；
4. 第4题：找作者写作目的，对应原文主旨句；
5. 第5题：根据文章内容判断出处，结合题材特点分析。
【解析】
1. 细节理解题：根据原文第一段“Each year, thunderstorms produce around millions of flashes of lightning.”可知，闪电来自雷暴，故选C。
2. 细节理解题：根据原文“Stay off telephones, computers and radios, but you can use mobile phones.”可知，雷暴时可使用手机，故选A。
3. 细节理解题：根据原文“Place your hands over your ears to protect your hearing.”可知，户外遇雷暴时应捂住耳朵；A选项“站高”与原文“不要成为区域内最高物体”矛盾，B选项“躺地上”与原文“never lie down”矛盾，D选项“脚后跟着地”与原文“唯一触地的是前脚掌”矛盾，故选C。
4. 主旨大意题：根据原文第一段最后一句“Here is what you need to know to stay safe.”可知，作者主要目的是告知人们遇闪电时的安全注意事项，故选B。
5. 推理判断题：文章为闪电安全的自然知识科普，最可能出现在自然网站，故选C。
【答案】
1.C 2.A 3.C 4.B 5.C
【知识点】
英语阅读理解、细节理解题、主旨大意题
【点评】
本文是图文结合的闪电安全科普文，题目侧重细节查找与主旨理解，贴近生活，难度适中。
【难度系数】
0.6