根据文中Yawning is one thing that newborn babies do often. 打哈欠是新生儿经常做的一件事。可知新生儿是知道如何打哈欠的,故填B。【小题3】细节理解题。根据文中When people are sleepy, they yawn to help stay awake. This is because of fresh oxygen. 当人们困倦时,他们打哈欠帮助保持清醒。这...
Do you know why people yawn? The most obvious answer is that we yawn because we are tired. But why does being tired make us yawn? How does yawning help us? The truth is that we don't know the answers to these questions.Scientists have different theories about why we yawn, but nobody...
Theories that it helps give the body extra energy are largely discredited, as we don’t yawn when we exercise, a time when we definitely need more get-up-and-go! Psychologist Catriona Morrison from the University of Leeds says yawning is an ancient...
阅读课文并回答问题. 1. are we more likely to yawn in the company of our family or strangers? 2. why don't we think yawning gives you a rush of energy? 3. true or false: humans and chimpanzees are the only mammals which yawn. 4. ...
根据文中Yawning is one thing that newborn babies do often.打哈欠是新生儿经常做的一件事。可知新生儿是知道如何打哈欠的,故填B。 【3】细节理解题。根据文中When people are sleepy, they yawn to help stay awake. This is because of fresh oxygen.当人们困倦时,他们打哈欠帮助保持清醒。这是因为新鲜的...
But why do people yawn? It’s clear that it’s because we are tired, but why does being tired makes us strong? How does yawning help us? The truth is that we don’t know the answers to these questions. Scientists have different ideas about why we yawn, but no one knows them for...
But why do people yawn? It's clear that it's because we are tired, but why does being tired make us strong? How does yawning help us?The truth is that we don't know the answers to these questions. Scientists have different thoughts about why we yawn, but no one know them for ...
Why Do People Yawn Sometimes westay up late. The next morning when weget up, we cannot stop yawning. We yawn even without thinking about it.Why do we yawn when we are tired? Some people believe that our bodies yawn when we ...
YawnsContagiousVERTEBRATEANIMALSEvery person yawns.So do many other vertebrate animals.While yawning is contagious,not everyone catches a yawn.Around 60%-70% of people yawn if they see another person yawn in real life or in a photo or even read ahout yawning.中学科技...
if they see another person yawn in real life or in a photo or even read about yawning. Contagious yawning also occurs in animals, but it doesn't necessarily work the same way as in people. Scientists have proposed many theories for why we catch yawns. Here are some of the leading ideas...