Why Do We Yawn?
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Do you know?
- Yawning is commonly thought to be a sign of sleepiness or boredom, though this is not always the case.
- Yawning may be a function of breathing. Yawns may be more likely when the blood needs oxygen.
Let's explore more about yawning!
FACT: There are only three species that yawn contagiously: humans, chimpanzees, and the family of wolves and dogs.
Listen and choose the correct answer to each of the following questions.
- How much time do our mouths stay open when we yawn?
- According to the audio, when do people NOT yawn?
How much time do our mouths stay open when we yawn?
- about 4 seconds
- about 5 seconds
- about 6 seconds
According to the audio, when do people NOT yawn?
- when they are excited
- when they are nervous
- when they are sad
Complete the text you are listening to by dragging the correct word to each blank.
Bears . Camels yawn. Most mammals yawn. Why do we yawn? No one really knows the answer.
We do know that everyone yawns in the same way. First you open your mouth slowly. Your mouth stays open for about five seconds. Then you quickly close your mouth.
We also know that yawning is , or catching. When you see someone yawn, you yawn, too. Many people say that they yawn because they are bored or tired. This might be true. However, we know that people also yawn when they are excited or nervous. Olympic runners, for example, often yawn before a . Why is that?
Some scientists believe that yawning makes you more alert. When you yawn, you breathe more . You also stretch the in your face and neck. Maybe this makes you feel more alert.
Scientists don't spend much time studying yawning. That is probably because yawning doesn't hurt. It is just something we do.
Read and answer the following questions.
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Bears yawn. Camels yawn. Most mammals yawn. Why do we yawn? No one really knows the answer.
We do know that everyone yawns in the same way. First you open your mouth slowly. Your mouth stays open for about five seconds. Then you quickly close your mouth.
We also know that yawning is contagious, or catching. When you see someone yawn, you yawn, too. Many people say that they yawn because they are bored or tired. This might be true. However, we know that people also yawn when they are excited or nervous. Olympic runners, for example, often yawn before a race. Why is that?
Some scientists believe that yawning makes you more alert. When you yawn, you breathe more deeply. You also stretch the muscles in your face and neck. Maybe this makes you feel more alert.
Scientists don't spend much time studying yawning. That is probably because yawning doesn't hurt. It is just something we do.
Source: Facts and Figures
- You become angry.
- You feel sleepy.
- You laugh at him or her.
- You yawn, too.
Which of the following is NOT true?
- When you yawn, your breathing changes.
- Some people yawn quickly, and others yawn slowly.
- Scientists don't know why people yawn.
- Perhaps yawning isn't painful so it isn't studied carefully.
According to the passage, athletes often yawn before a race because _____.
- they can run faster and further
- their bodies are more comfortable
- they may become more alert
- their muscles will be stronger
What is the main idea of the text?
- Scientists want to know why yawning is contagious.
- All animals yawn in the same way.
- People yawn when they are excited or nervous.
- Many kinds of animals yawn, but we don't know why.
Put the right word in· each blank. The sentences are from the text.
- We also know that yawning is , or catching.
- We do know that everyone in the same way.
- When you yawn, you breathe more .
- Olympic runners, for example, often yawn before a .
- You also stretch the in your face and neck.
Put the right word in each blank. These are new sentences for the words in the text.
- Soccer players have strong leg because they run a lot.
- Do you cover your mouth when you ?
- Scarlet fever is highly .
- Their horse came third in the last year.
- We don't want to get too involved with these people.