There is no creature that does not need sleep or complete rest every day. If you want to know why,just try going without sleep for a long period of time.You will discover that your mind and body would become too tired to work properly.You would become irr

题目

There is no creature that does not need sleep or complete rest every day.
If you want to know why,just try going without sleep for a long period of time.You will discover that your mind and body would become too tired to work properly.You would become irritable and find it hard to think clearly or concentrate on your work.So sleep is quite simply the time when the ceils of?your body recover from the work of the day and build up supplies of energy for the next period of activity.
One of the things we all know about sleep is that we are Unconscious in sleep,We do not know what is going on around us.But that do.esn′t mean the body stops all activity.The important organs continue to work during sleep,but most of the body functions are slowed down.
For example,our breathing becomes slower and deeper.The heart beats more slowly,and the blood pressure is lower.Our arms and legs become limp(柔软的)and muscles are at rest.It would be impossible for our body to relax to such an extent if we were awake.So sleep does for us what the?most quiet rest can not do.
Your body temperature becomes lower when you are asleep,which is the reason people go to sleep under some kind of covers.And even though you are unconscious,many of your reflexes(反射动作)still work.For instance,if someone tickles(使觉得痒)your foot,you will put it away in your sleep,or even brush a fly from your forehead.You do these things without knowing it.

The cells of your body develop supplies of energy__________

A.when you are asleep
B.when you recover from your work of the day
C.in the next period of activity
D.when you are quiet

参考答案和解析

答案：A

解析：

【考情点拨】事实细节题。【应试指导】文章第二段最后一句指出，睡眠时是身体的细胞从整天的忙碌中恢复并为下一个阶段的活动增加能量供应的时间。故选A。

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相似问题和答案

第1题：

7． Every day，________has a good rest and does his homework after school．

A． Tom

B． Kate

C． Tom and Kate

D． Tom's sister

正确答案：A
7．A【解析】根据句中的动词has翔断本句主语为单数，因此排除C选项，又因为句中的物主代词为his，判断本句主语为男名，因此排除B、D．

第2题：

I have to work every day. (改为否定句)

正确答案：I don’t have to work every day.

第3题：

The press invade people's () unjustifiably every day.

A、pirate

B、piracy

C、privacy

D、private

参考答案：C

第4题：

You are the administrator of the TestKing company network. The network consists of a single Active Directory domain named The network includes 20 member servers running Windows Server 2003 and 4 domain controllers running Windows Server 2003. All client computers run Windows XP Professional.A member server named TestKingSrvA functions as a file server. TestKingSrvA has a locally attached tape device. You need to create a backup schedule for TestKingSrvA. All data on TestKingSrvA must be backed up once a week. Every day, you need to back up only the data that was changed after the last backup. You need to minimize the amount of data that must be backed up every day.What should you do? （）(Choose two)

A. Perform a normal backup every week.

B. Perform a copy backup every week.

C. Perform a differential backup every week.

D. Perform an incremental backup every week.

E. Perform a normal backup every day.

F. Perform a copy backup every day.

G. Perform a differential backup every day.

H. Perform an incremental backup every day.

参考答案：A, H

第5题：

We have an English lesson ( ) every other day.

A、on

B、for

C、by

D、/

参考答案：D

第6题：

Passage Four

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 milk will help make you drowsy. There is also an old suggestion that counting sheep will put you to sleep!

46. A good title for this passage is ______.

A. Sleep

B. Good Health

C. Dreams

D. Work and Rest

正确答案：A
答案为A。根据文章大意及第一段第二句可知。

第7题：

During sleep, the fatigue (疲劳) of the body disappears and recuperation ( 恢复) begins. The tired mind gathers new energy. Once awake, the memory improves, and annoyance and problems are seen in a better perspective.

Some adults require little sleep; others need eight to ten hours in every twenty-four. Infants sleep sixteen to eighteen hours daily and, as they grow older, the amount gradually diminishes. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive worker under great pressure may manage on six to eight. Many famous people are reputed to have required little sleep. Napoleon, Thomas Edison and Charles Darwin apparently averaged only four to six hours a night.

Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total of more than twelve years. By that age you will also have developed a sleep routine: a favorite hour, a favorite bed, a favorite position, and a formula you need to follow in order to rest comfortably. Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours ?nearly five days, whereas animals kept awake for from five to eight days have died of exhaustion. The limit for human beings is probably about a week.

1、The writer implies that _________

A、sleep is important for good mental and physical health

B、a light sleep is as restful as a deep sleep

C、memory is improved during sleep

D、sleep is relatively unimportant for human beings

2、From the amount of sleep Napoleon, Edison and Darwin required, we can infer that_______.

A、they were famous great men

B、 they were executive workers

C、 they were intelligent people

D、 they were involved in mentally demanding work

3、The amount of sleep required ________.

A、varies greatly from individual to individual

B、 depends on an individual''s age

C、 relates to an individual''s occupation

D、 all of the above.

4、According to the passage, the sleeping routine will be built at the age of _________.

A、10

B、20

C、30

D、40

5、From animal experiments, we can conclude that the final result of the lack of sleep is probably _________

A、mental illness

B、mental breakdown

C、susceptibility to illness

D、death

正确答案：1A 2D 3D 4C 5D

第8题：

She felt __________ and did nothing but sleep the whole day.

A.slack

B.the slack

C.slacking

D.slackly

参考答案：A;

第9题：

It is more to buy a season ticket if you travel every day.

A、cheap

B、economic

C、economical

D、saving

参考答案：A

第10题：

By default, how often does a router running IGRP send its complete routing table to its neighbors?()

A. Every 5 minutes

B. Every 90 seconds

C. Every 60 seconds

D. Every 30 seconds

参考答案：B

There is no creature that does not need sleep or complete rest every day.

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