sleeping.We could have used the time to do more important things like eating,looking after our families and working.Some scientists believe sleeping helps recharge the body.But now a study suggests a new theory.It says that we may sleep to forget some of the millions of new things we learn...
(A) No one knows why we sleep, but it's certain that we need to. People who are prevented from sleeping begin to suffer obvious effects (产生明显的反应) after a few days— they think less clearly, and they fall asleep during the working hours; some may have hallucinations (幻觉). Th...
Have you ever wondered why we need so much sleep?Humans spend about one third of their lives sleeping. We could have used the time to do moreimportant things like eating, looking after our families and working. Some scientists believesleeping helps recharge the body. But now a study suggests...
D题目:人的一生需要睡多久Have you ever wondered why we need so much sleep?Humans spend about one-third of their lives sleeping. We could use this time to do other things, likelooking after our families and working. Some scientists believe sleeping helps recharge(恢复精力) the body.1.It ...
No one knows why we sleep, but it’s certain that we need to. People who are prevented from sleeping begin to suffer obvious effects after a few days—they think less clearly, and they fall asleep during the working hours; some may have hallucinations(幻觉).?There are no rules about s...
sleep you need and whether sleeping a lot can be bad for you. Then, we'll examine whether your sleep environment may make you sleepier than usual. Finally, we'll look at the medical conditions among the causes of oversleeping and what you can do to stop sleeping so much. Let's jump ...
A. Research on coffee drinking. B. Effects of sleeping habits. C. Studies about a disease. 7. When does the woman like to drink coffee? A. In the afternoon. B. In the evening. C. In the morning. 【答案】6. A 7. B 【解析】 ...
No one knows why we sleep, but it’s certain that we need to.People who are prevented from sleeping begin to suffer obvious effects after a few days-they think less clearly, and they fall asleep during the working hours. There are no rules about sleep.Generally speaking, grown-ups sleep...
Sleeping helps our body as well as our brain . When we are awake . we use energy Body cells get worn down . When we sleep , new cells grow . Sleep help skeep the body from wearing down. For this reason , sleep is important to athletes . Durin...
Are you asleepwalker? Or, is there a sleepwalker around you?55It's not just people that love to snooze(打盹). In fact, many animals have unusu-al or surprising sleeping habits. Some animals, such as bears and hedgehogs, sleep allthrough winter. The swift is a very fast bird that ca...