What happens when you yawn?Provides information on yawning. Scientific explanation on yawning; Why people yawn upon seeing others yawning.Stickney, NancyU+s+ Kids
根据What is the first thing you want to do when you see someone yawn(打呵欠)? You want to yawn, too!当你看见他人打哈欠时你也想打哈欠,所以打哈欠是传染的,故选C。 (2)细节题。根据But why do we yawn? Well, scientists are not really sure.可知科学家不确定为什么打哈欠,故选D。 (3)细...
Scientists are still trying to find out why yawning happens and why it is so contagious. But they are only sure that when one person yawns, almost everyone else nearby wants to yawn, too. 1. Scientists have found that all people including ___ yawn. A. babies B. children C. scientis...
It is most commonly done before falling asleep and when you wake up and so is usually considered as a sign of being tired. But why do we really yawn and what does it mean? There still isn’t very much that is known about yawning, with comparatively little research done on the topic....
What happens if you Gleek too much? Saliva production peaks when a person is eating and is at its lowest during sleep. Too much saliva can cause problems with talking and eating, along with chapped lips and skin infections. Hypersalivation and drooling can also cause social anxiety and dimi...
Scientists are still trying to find out why yawning happens and why it is so contagious. But they are only sure that when one person yawns, immediately everyone else nearby wants to yawn, too. 【1】The underlined word "contagious" in Paragraph 1 means___. A. helpful to our health B. ...
They do not know exactly why yawning happens, but they do know many facts about yawning.yawn We know that everyone yawns in the same way. First you open your mouth slowly. Your mouth stays open for about five seconds. You take in a lot of air and then push it out. Then you quickl...
These scientists found people yawned more often if they were warmer than others.Scientists are trying to find out why yawning happens and why it is so contagious. But they are only sure that when one person yawns, everyone else nearby wants to yawn, too.( C)1. The underlined word “...
Scientists are still trying to find out why yawning happens and why it is so contagious. But they are only sure that when one person yawns, almost everyone else nearby wants to yawn, too. 1.According to the scientists, people start to yawn when they are . A. born B. inside their mo...
I still have my mouth open and although I want to speak I also just want to see what happens next. My husband is a few steps from the wrong gold car when the doors open and a whole family jumps out, the parents nervously eyeing my husband and guiding their children around him to cat...