The Lightning Strike

A tree is struck and the secret of lightning is revealed · 闪电惊魂

We were playing in the tree house in our backyard when my mother came running from the house yelling, "Get out of the tree! Hurry!" A huge storm was rolling in.

We had just gotten inside when there was a loud hiss in the air. A blinding light suddenly filled our house. Then, it was over. All that could be heard was the rain and rumbling in the distance.

When we looked in the backyard, we saw smoke coming off the oak tree. It had been hit by lightning! We were really frightened to see what lightning can do.

The next day at school, I told my teacher what I had experienced. I asked him many questions about lightning. Mr. Neil said that lightning is an abrupt electric discharge from one cloud to another, or from one cloud to the earth. The discharge is the result of the buildup of electrical energy between positively and negatively charged areas.

"All matter is made up of atoms," he explained. "An atom contains a positively charged nucleus and negatively charged electrons that orbit the nucleus. If you rub two different objects together, such as your pen and your hair, electrons may be transferred from one object to the other. The one that gains extra electrons becomes negatively charged. The other is positively charged."

This was really interesting. My teacher continued, "When many small bits of raindrops bump into each other as they move around in the air, electrical charges gather at the top of the cloud. Negative charges form at the bottom of the cloud. Since opposites attract, this causes a positive charge to build up on the ground beneath the cloud. The ground's electrical charge concentrates around anything that sticks up, such as mountains, people or trees. The charge coming up from these points eventually connects with a charge reaching down from the clouds and then, lightning strikes!"

Mr. Neil told us that lightning can heat up the air to 30,000 degrees Kelvin. That's six times hotter than the surface of the sun!

Now I see why lightning strikes the highest object, and why it's dangerous to stay under a tree during a thunderstorm.

The Lightning Strike — A close call in a storm and the science behind the flash

We were playing in the tree house in our backyard when my mother came running from the house y(1)__________, "Get out of the tree! Hurry!" A huge storm was rolling in.

We had just gotten inside when there was a loud h(2)__________ in the air. A b(3)__________ light suddenly filled our house. Then, it was over. All that could be heard was the rain and r(4)__________ in the distance.

When we looked in the backyard, we saw smoke coming off the oak tree. It had been hit by lightning! We were really f(5)__________ to see what lightning can do.

The next day at school, I told my teacher what I had experienced. I asked him many questions about lightning. Mr. Neil said that lightning is an a(6)__________ electric d(7)__________ from one cloud to another, or from one cloud to the earth. The discharge is the result of the buildup of electrical energy between positively and negatively charged areas.

"All matter is made up of atoms," he explained. "An atom contains a positively charged nucleus and negatively charged electrons that o(8)__________ the nucleus. If you rub two different objects together, such as your pen and your hair, electrons may be t(9)__________ from one object to the other. The one that gains extra electrons becomes negatively charged. The other is positively charged."

This was really interesting. My teacher continued, "When many small bits of raindrops bump into each other as they move around in the air, electrical charges gather at the top of the cloud. Negative charges form at the bottom of the cloud. Since opposites attract, this causes a positive charge to build up on the ground beneath the cloud. The ground's electrical charge c(10)__________ around anything that sticks up, such as mountains, people or trees. The charge coming up from these points eventually connects with a charge reaching down from the clouds and then, lightning strikes!"

Mr. Neil told us that lightning can heat up the air to 30,000 degrees Kelvin. That's six times hotter than the surface of the sun!

Now I see why lightning strikes the highest object, and why it's dangerous to stay under a tree during a thunderstorm.

📌 重点单词 · Key Vocabulary

🔗 重点词组 · Key Phrases

💡 语法小贴士 · Grammar Tips

⚡ 文化拓展 · Lightning: Fear and Science

本文是一篇"经历 + 科普"结合的文章：前半段讲述小作者在雷雨天亲眼目睹橡树被闪电击中的惊险一幕，后半段通过科学老师的讲解揭示闪电形成的原理。这种"故事引入 + 知识讲解"的写法在英语科普类阅读中非常常见。

闪电的威力远超想象：文中提到闪电能把空气加热到 30,000 开尔文（约 29,700 摄氏度），是太阳表面温度（约 5,500 摄氏度）的六倍左右。正因如此，雷雨天躲在树下非常危险——高耸的树木更容易吸引地面电荷，成为闪电通道。

在西方文化中，研究闪电最著名的典故是本杰明·富兰克林 1752 年的风筝实验（the kite experiment），他由此证明了闪电就是一种放电现象，并发明了避雷针（lightning rod）。雷雨天记住一条安全口诀："When thunder roars, go indoors!"（雷声隆隆，快回屋中！）