After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.
There are four levels of sleep, each being a little deeper than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to the other.
Although your mind slows down, from time to time you will dream. Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement. If you have trouble falling asleep, some people recommend breathing very slowly and very deeply Other people believe that drinking warm
A. sick
B. stand up
C. asleep
D. a little sleepy
After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.
There are four levels of sleep, each being a little deeper than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to the other.
Although your mind slows down, from time to time you will dream. Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement. If you have trouble falling asleep, some people recommend breathing very slowly and very deeply Other people believe that drinking warm
A. Sleep
B. Good Health
C. Dreams
D. Work and Rest
From Monday until Friday most people are busy working or studying, but in the evenings and on week ends they are free and enjoy themselves. Some watch TV or go to the movies; others take part in sports. It depends on individual (21) There are many different ways to spend our (22) time.
Almost everyone has dome kind of hobby. It may be (23) from collecting stamps to making model air planes. Some hobbies are very (24) ; others don’t, (25) at all. Some collections are worth a lot of money; others are valuable only (26) their owners.
I know a man who has a coin collection worth several thousand dollars. A short time ago he bought a rare fifty-cent piece (27) $ 250. He was very happy about his collection and thought the price was reason able. On the contrary, my youngest brother (28) match boxes. He has almost 600 of them. But I doubt if they are worth any money. However, for my brother they are (29)
A. expensive
B. interesting
C. exciting
D. cheap
我来回答:
