🎧 Listen to today’s story
📚 Key Words
| Word | Meaning | 中文 |
|---|---|---|
| engine | A machine that makes something move. | 发动机 |
| melt | To turn into liquid because of heat. | 融化 |
| solution | The answer to a problem. | 解决方案 |
| nature | Plants, animals, and the natural world. | 大自然 |
| protect | To keep something safe. | 保护 |
| design | A plan or drawing of how to make something. | 设计 |
| competition | A game or test to see who is the best. | 比赛 |
| travel | To go from one place to another. | 旅行 |
📖 Read the story
Most rockets use engines that look like bells, but they have some problems. There is a better engine called an aerospike engine. However, this engine has a big problem. It gets too hot, and the metal can melt. Three smart seventeen-year-old students found a great solution. They wanted to build a better rocket, so they looked at nature for help. They studied how animal skin protects animals from the heat. Then, the teenagers made a new rocket part. This new design keeps the engine cool, so it does not melt. They showed their amazing work at a big science competition. Many people were very excited about their idea. One day, their design might help us travel to the stars. Do you want to build a rocket too?
✏️ Answer the questions
1. What is the problem with aerospike engines?
- A.They are too small.
- B.They get too hot.
- C.They are too slow.
- D.They are too loud.
2. How old are the smart students?
- A.Seven years old.
- B.Twelve years old.
- C.Seventeen years old.
- D.Twenty years old.
3. What did the students study to get their idea?
- A.Old science books.
- B.How animal skin protects from heat.
- C.Other rocket designs.
- D.The weather in space.
4. What does the new design do to the engine?
- A.It makes it bigger.
- B.It keeps it cool.
- C.It makes it louder.
- D.It changes its color.
5. Where did the teenagers show their amazing project?
- A.At a school sports game.
- B.In a popular movie.
- C.At a big science competition.
- D.At a space museum.