🎧 Listen to today’s story
📚 Key Words
| Word | Meaning | 中文 |
|---|---|---|
| sensor | A small tool that can find or measure something. | 传感器 |
| normal | Something that is usual or expected. | 正常的 |
| measure | To find the size or amount of something. | 测量 |
| healthy | Being well and not having any illness. | 健康的 |
| device | A machine or tool made for a special job. | 设备 |
| fiber | A part of some foods that helps your stomach. | 纤维 |
| invention | Something new that someone has made for the first time. | 发明 |
| gas | A substance like air that we cannot usually see. | 气体 |
📖 Read the story
Everyone farts, but how many farts are normal? Doctors want to know the answer to help people stay healthy. Scientists made a small new sensor. It is the size of a small coin. You can put it inside your underwear. This sensor measures a gas called hydrogen. Scientists tested the new device on many young people. They found that most people fart about thirty-two times every day. Some people only fart four times. Other people fart sixty times! Eating food with fiber, like fruit, can make you fart more. This smart underwear helps doctors understand our bodies. If a doctor knows what is normal, they can see if a person is sick. Science can be funny, but it is also very useful. This invention helps us learn more about our health in a simple way.
✏️ Answer the questions
1. What did the scientists make to help doctors?
- A.A new kind of fruit
- B.A small sensor
- C.A large computer
- D.Special gumdrops
2. How big is the new device?
- A.Like a small coin
- B.Like a big book
- C.Like a piece of fruit
- D.Like a pair of shoes
3. Where does a person put the sensor?
- A.In their pocket
- B.On their arm
- C.Inside their underwear
- D.In their mouth
4. How many times a day do most people fart?
- A.Four times
- B.Sixty times
- C.Twelve times
- D.Thirty-two times
5. Why do scientists want to know what is normal?
- A.To make more gumdrops
- B.To help doctors see if someone is sick
- C.To teach children how to cook
- D.To sell new coins