🎧 Listen to today’s story
📚 Key Words
| Word | Meaning | 中文 |
|---|---|---|
| planet | A very large round object in space that moves around a star. | 行星 |
| atmosphere | The mixture of gases around a planet or a space rock. | 大气层 |
| gas | A substance like air that is not solid or liquid. | 气体 |
| distant | Far away in space or time. | 遥远的 |
| star | A bright object in the night sky that makes its own light. | 恒星 |
| comet | A bright object in space with a long tail of gas and dust. | 彗星 |
| volcano | A mountain that can shoot out hot or cold materials from inside. | 火山 |
| icy | Very cold, or covered with ice. | 冰冷的 |
📖 Read the story
Scientists found an amazing thing in deep space. They saw a small, icy rock far past the planet Pluto. This rock has a very thin atmosphere. An atmosphere is a layer of gas around a planet or a rock. Usually, small rocks do not have gas because they are too small. But this rock is different. Scientists watched the rock pass in front of a faraway star. The star’s light slowly went dark and then became bright again. This showed that gas is around the rock. How did the gas get there? Maybe a comet hit the rock. Or maybe the rock has cold, icy volcanoes. These volcanoes can make gas. This is the most distant rock with an atmosphere in space. It is very cold and dark there.
✏️ Answer the questions
1. Where did scientists find the small, icy rock?
- A.Near the Earth
- B.Far past the planet Pluto
- C.Inside the Sun
- D.Next to the Moon
2. What is an atmosphere?
- A.A layer of gas around a planet or a rock
- B.A type of cold volcano
- C.A very bright star in deep space
- D.A machine that scientists use
3. Why is this space rock different from other small rocks?
- A.It is very hot.
- B.It has a layer of gas around it.
- C.It is made of gold.
- D.It moves faster than light.
4. How did scientists find out that the rock has gas?
- A.They flew to the rock in a spaceship.
- B.They heard a loud sound from space.
- C.They watched it pass in front of a star.
- D.They brought a piece of the rock to Earth.
5. What might make the gas on this space rock?
- A.Green plants and trees
- B.Cold, icy volcanoes
- C.People living there
- D.Hot rivers of water