We all need sleep, but different creatures(生物) have different ways to sleep, according to the conditions of their environment. You can, in fact, tell a lot about an animal by 1 the way it sleeps. For example, for humans, it's 2 to lie down on one's back or stomach and fall as...
1. Sleep for humans almost always as ___ as they live, ___ different ways of sleeping2. For warmth, some animals sleep in groups such as lions, wolves and penguins. Elephants also sleep in a group, but they sleep in groups for protection. The older elephants make a cave( 贤窟) aro...
3. Which of the following is TRUE according to the passage?A. There are many conflicts between students and teachers.B. Some of the teachers have practice and earlier plans.C. Most students are able to do sport and homework before 9?00.D. Ways to solve students' sleep problem vary from...
I visited Miss Bee twice a week that summer. Sometimes she shortchanged me. Other times she overcharged. Going to the store was like going into battle. All summer long she found ways to trick me. No sooner had I learned how to pronounce “bicarbonate of soda” and memorized its location...
aHow much sleep do we need ? We are all different. Some people need only three hours of sleep a night. Others need ten hours of sleep a night. Most Americans sleep an average(平均数) of seven to eight hours a night. After age fifty, the average sleep time goes down to 6.5 hours ...
However, different species(物种) have different ways to do it. In fact, we1tell a lot about it by studying the ways the animals sleep.For example, for humans, it's natural 2 down on one's back or stomach and fall asleep. That'seasy enough to do 3 you're at the top of the ...
Ancient civilizations had different ways of ___. A. traveling B. sitting C. sleeping D. eating 相关知识点: 试题来源: 解析 A。考查词汇理解。古代文明有不同的出行(traveling)方式,sitting 坐着、sleeping 睡觉和 eating 吃饭方式相对比较单一,不如出行方式多样。反馈...
we must remem There're many ways to keep healthy. First of all, we should keep taking exercises every day. We can walk to school instead of taking a bus. After school, we can spend an hour playing ball games. If we live in a high-rise, we can walk upstairs or downstairs. Second...
Some sleep a little. Some sleep a lot. And some have come up with some unusual ways to get their zzzz's. Big Sleepers Koalas are marsupials (mammals with a pouch, like kangaroos) that live in Australia. They eat only the leaves of...
1. Light Sleep (NREM Stage 1) The journey into dreamland begins with light sleep, known as NREM (Non-Rapid Eye Movement) Stage 1. During this stage, you’re in a state of transition between wakefulness and sleep. Your muscles start to relax, and your brain produces alpha and theta waves...