Enough sleep is important to health. The amount of sleep needed depends on the age of the person and the conditions in which sleep takes place. The young may need more sleep than the old, but usually eight hours are enough for the health of grown-ups. Some can do with less than this amount, but others may need more. Every person knows his own need. It is then a matter of good judgment(判断) to satisfy his need. Sleep should always be enough to make one bring back his strength and get ready for a day’s work.
Fresh air is necessary to sound sleep. It is not without reason for some people to think that it is practicable to sleep in the open air. When one can keep himself warm, out-of-door sleeping probably gives the body its most complete relaxation(松弛).
Ability(能力) to sleep is largely a habit. The conditions referred to only lead to sleep. Out-of-door exercises, a good habit of regular hours and the avoidance(避免) of late eating and worry, which are largely within the control of any person, are all helpful to sound sleep.
A bath at bedtime, neither hot nor cool but of body temperature, may be helpful to sleep. Sleep-producing drug(药) should never be taken except when suggested by a doctor.
【小题1】We know from the passage is enough for the health of a pupil.
| A．equal or more than eight hours | B．seven hours or so |
| C．Eight hours or so | D．Less than eight hours |
| A．forming the habit of taking sleep-producing drug. |
| B．keeping good habits. |
| C．staying up late night. |
| D．eating something at bedtime. |
| A．his character | B．his control | C．his age | D．his habit |
| A．take a bath | B．do any housework |
| C．go out for relaxation | D．think a lot |
【小题1】A
【小题2】B
【小题3】C
【小题4】D
解析试题分析：文章介绍人们需要多少睡眠，怎么能拥有高质量的睡眠。
【小题1】细节题：从文章第一段的句子：The young may need more sleep than the old, but usually eight hours are enough for the health of grown-ups.可知等于或大于8小时的睡眠对一个学生的健康是足够了，选A
【小题2】细节题：从文章第三段的句子：Ability(能力) to sleep is largely a habit. The conditions referred to only lead to sleep.可知如果你想睡一个好觉，保持良好的习惯是很重要的。选B
【小题3】细节题：从文章第一段的句子：The amount of sleep needed depends on the age of the person and the conditions in which sleep takes place.可知一个人需要的睡眠的量和他的年龄有关，选C
【小题4】细节题：从文章第三段的句子：the avoidance(避免) of late eating and worry, which are largely within the control of any person, are all helpful to sound sleep.可知在睡觉前，你最好不要想的太多。选D
考点：考查健康类短文
高效智能课时作业系列答案科目：高中英语 来源： 题型：阅读理解
Fun day
To celebrate the Year of the Snake
Organized by Lam Tin Youth Centre and Kwun Tong High school
Date：2 February 2013
Time：10 am – 5 pm
Place：Kwn Tong Playground
Fee: $ 20 (buy three get one free)
Programmes：drama, lion dance, magic show and ballet performance
Highlights: 1) enter the lucky draw to win a digital camer
2) learn to make festival food
John us on the Fun day! 
All are welcome!
Note:
★Ticket are available at the General Office of Lam Tin Youth Centre.
★For those who would like to be a volunteer, please contact Miss Olivia Wong one week before
the activity.
【小题1】What you have just read is a .
| A．note | B．report | C．schedule | D．poster |
| A．A big event to welcome a Chinese new year. |
| B．A social gathering to raise money for wildlife. |
| C．A party for close friends to meet and have fun. |
| D．A meeting of Kwun Tong High School students. |
| A．$ 20. | B．$ 40 | C．$ 60. | D．$ 80 |
| A．Tickets are sold in Kwun Tong High School. |
| B．It’s unnecessary to take soft drinks with you. |
| C．Free digital cameras are provided for everybody. |
| D．Festival food will be served without extra charge. |
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科目：高中英语 来源： 题型：阅读理解
After moving to the United States, immigrant groups trying to fit in tend to choose high-calorie, fatty foods in an attempt to appear more American, a new study finds. That's one reason why immigrants approach U.S. levels of obesity within 15 years of moving to America.
The researchers also did an experiment that measured whether or not the threat of appearing un-American influenced respondents' food choices．After being questioned about their ability to speak English，75 percent of Asian-Americans identified a typical American food as their favorite. Only 25 percent of Asian-Americans who had not been asked if they spoke English did the same.
When their American identity was called into question during a follow-up study, Asian-American participants also tended to choose typical American dishes, such as hamburgers and grilled cheese sandwiches, over more Asian fare. In that experiment, 55 Asian-Americans were asked to choose a meal from a local Asian or American restaurant. Some participants were told that only Americans could participate in the study. Those who chose the more typical American fare ended up consuming an extra 182 calories, including 12 grams of fat and seven grams of saturated fat(饱和脂肪).
"People who feel like they need to prove they belong in a culture will change their habits in an attempt to fit in," said Sapna Cheryan, an author of the study and assistant professor of psychology at the University of Washington. "If immigrants and their children choose unhealthy American foods over healthier traditional foods across their lives, this process of fitting in could lead to poorer health," Cheryan added.
Social pressures, the study concluded, are at the heart of the problem. "In American society today, being American is associated with being white. Americans who don't fit this image even if they were born here and speak English feel that pressure to prove that they're American," said Cheryan.
【小题1】According to the survey, _____.
| A．Asia-Americans care less about their health. |
| B．25 percent of Americans like junk food. |
| C．choosing food is related to Asian-American’s situation |
| D．immigrants are forced to eat junk food. |
| A．food offered as a meal | B．a person taking a taxi |
| C．money spent on food | D．an arranged thing to do |
| A．what immigrants have done is ridiculous |
| B．American traditional foods are healthier |
| C．immigrants risk their health in order to fit in |
| D．American culture affects immigrants deeply |
| A．The situation of employment | B．The traditional culture |
| C．The American government | D．The pressures from society |
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科目：高中英语 来源： 题型：阅读理解
Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes--Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters (厘米) from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect (反射) on the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands--Hand injuries can happen because the hands are moved in the same way hundreds of times. If you use a keyboard for a long time, follow this rule: Stop sometimes and exercise your hands and fingers in different ways.
Your back--Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back and your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.
【小题1】How many kinds of computer injuries are mentioned in this passage?
| A．One. | B．Two | C．Three. | D．Four. |
| A．you sit 60 centimeters away |
| B．you remember to look away |
| C．your eyes are too close to it |
| D．the window is on your left or right |
| A．you work near a window |
| B．you often take rests from working |
| C．you use a keyboard for a long time |
| D．the window is behind you |
| A．You should sit with your back straight while you work on a computer. |
| B．Staying in front of a computer too long may injure your eyes. |
| C．When you work on a computer, your hands almost move in the same way. |
| D．The writer thinks that computer is bad for your health. |
| A．How to protect your eyes |
| B．How to protect your hands |
| C．How to use a computer safely |
| D．How to protect your back |
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科目：高中英语 来源： 题型：阅读理解
Feel tired lately?Has a doctor said he can’t find anything wrong with you?Perhaps he sends you to a hospital,but all the advanced equipment there shows there is nothing wrong with you.
Then,consider this:you might be in a state of sub-health(亚健康).
Sub-health,also called the third state or gray state,is explained as borderline state between health and disease.
According to the investigation by the National Organization,over 45 percent of sub-health people are middle-aged or elderly.The percentage is even higher among people who work in management positions as well as students around exam-week.
Symptoms(征兆)include a lack of energy,depression,slow reactions,insomnia(失眠),agitation, and poor memory.Other symptoms include shortness of breath,sweating and aching in the waist and legs.
The key to preventing and recovering from sub-health,according to some medical experts,is to form good living habits, alternate work and rest, exercise regularly,and take part in open air activities.
As for meals,people are advised to eat less salt and sugar.They should also eat more fresh vegetables,fruits,fish because they are rich in nutritional elements—vitamins and trace elements(微量元素)—that are important to the body.
Nutrition experts point out that it is not good to eat too much at one meal because it may cause unhealthy changes in the digestive tract(消化道).They also say that a balanced diet is very helpful in avoiding sub-health.
【小题1】When you are in a state of sub-health,you should ________.
| A．stay home and keep silent |
| B．go to a doctor and buy some medicine |
| C．not consider it very serious |
| D．find out the reasons and relax yourself |
| A．they have used up their energy |
| B．they have lost their living hopes |
| C．they have more pressure in life and work |
| D．they have changed their way of life |
| A．keep on working regularly | B．go to sleep a bit earlier |
| C．form good living habits | D．take medicine if necessary |
| A．arrange by turns | B．cause to take place |
| C．make up for | D．keep away from |
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科目：高中英语 来源： 题型：阅读理解
Climate change could affect food supplies, water resources, human health and homes.
If greenhouse gas emissions keep increasing at the current rate, global temperature is expected to rise between 2°C and 6°C by 2100. This doesn’t sound much, but a 5°C change is the difference between the current warm period and an ice age.
Global warming leads to other changes in the climate: melting ice, more evaporation(蒸发), changes in geographical patterns of rainfall, heavier downpours separated by longer dry spells, more frequent heat waves, more intense hurricanes, and sea level rise.
These changes could affect crop growth as drought, increased evaporation and shrinking glaciers（冰川）disrupt water supply. Some crops could suffer heat stress. While there may be benefits in some regions, overall climate change is likely to have a negative impact on global food supplies. The impacts of climate change on agriculture will vary widely around the world. A global temperature rise of 1–2 °C is expected to increase food production in some regions, particularly mid-latitude areas. But in tropical regions even a small amount of warming could reduce crop yields. A temperature rise of 3 °C or more could threaten global food resources, as all regions are likely to experience negative impacts overall.
Freshwater resources could also diminish, especially in tropical regions, as rain patterns change and evaporation speeds up. Some communities could lose essential melt water as glaciers disappear, while more intense rainfall and hurricanes could cause more flooding, leading to water pollution and bacterial diseases such as cholera（霍乱）becoming more widespread.
Climate change could lead to a variety of health impacts – both positive and negative. On the negative side, scientists anticipate more cases of malnutrition, heatstroke and waterborne diseases such as cholera. Although some populations will benefit from a reduced risk of cold-related illnesses such as hypothermia, overall a warming world is likely to have negative effects on human health.
Scientists also expect damage to homes and buildings from more intense hurricanes, heavier rainfall and rising sea levels. Climate change is likely to affect infrastructure by increasing the risk of both coastal and inland flooding around the world, owing to a combination of heavier rainfall, rising sea levels and increased storm damage. Homes and buildings could also be affected by the thawing of frozen ground and greater risk of forest fires.
The consequences of climate change will have an impact on people around the world.
【小题1】With global temperature increased by 1–2 °C, _______.
| A．crops yields could be increased in tropical regions |
| B．food production could rise throughout the world |
| C．chances are that food resources would be threatened overall |
| D．mid-latitude areas are likely to experience positive impacts |
| A．lower temperature than normal |
| B．higher temperature than normal |
| C．more cases of malnutrition |
| D．cases of waterborne diseases |
| A．food supplies and buildings |
| B．freshwater resources and homes |
| C．human health and food supplies |
| D．human health and homes |
| A．how global warming leads to changes in the climate |
| B．how climate change affects people worldwide |
| C．why climate change affects our crop growth |
| D．why climate change contributes to all bad results |
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科目：高中英语 来源： 题型：阅读理解
Feel tired lately?Has a doctor said he can’t find anything wrong with you?Perhaps he sends you to a hospital,but all the advanced equipment there shows there is nothing wrong with you.
Then,consider this:you might be in a state of sub-health(亚健康).
Sub-health,also called the third state or gray state,is explained as borderline state between health and disease.
According to the investigation by the National Organization,over 45 percent of sub-health people are middle-aged or elderly.The percentage is even higher among people who work in management positions as well as students around exam-week.
Symptoms(征兆)include a lack of energy,depression,slow reactions,insomnia(失眠),agitation, and poor memory.Other symptoms include shortness of breath,sweating and aching in the waist and legs.
The key to preventing and recovering from sub-health,according to some medical experts,is to form good living habits, alternate work and rest, exercise regularly,and take part in open air activities.
As for meals,people are advised to eat less salt and sugar.They should also eat more fresh vegetables,fruits,fish because they are rich in nutritional elements—vitamins and trace elements(微量元素)—that are important to the body.
Nutrition experts point out that it is not good to eat too much at one meal because it may cause unhealthy changes in the digestive tract(消化道).They also say that a balanced diet is very helpful in avoiding sub-health.
【小题1】When you are in a state of sub-health,you should ________.
| A．stay home and keep silent |
| B．go to a doctor and buy some medicine |
| C．not consider it very serious |
| D．find out the reasons and relax yourself |
| A．they have used up their energy |
| B．they have lost their living hopes |
| C．they have more pressure in life and work |
| D．they have changed their way of life |
| A．keep on working regularly | B．go to sleep a bit earlier |
| C．form good living habits | D．take medicine if necessary |
| A．arrange by turns | B．cause to take place |
| C．make up for | D．keep away from |
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科目：高中英语 来源： 题型：阅读理解
Is crying good therapy? Experts say yes. Having a good weep at the weekend is becoming more popular among office workers in China.
“I need to cry to let my feeling out,” said 22-year-old Guo Meng, a smart-looking young woman. “I remember one day when I got home I felt so down but I had no one to talk to, so I just curled up(蜷缩) with my teddy bear and cried myself to sleep,” Guo said. The next day, she said, she felt much better and life seemed not so bad after all.
Because crying is taken as a sign of weakness, people make a great show of being strong and not displaying emotion. Psychologists and medical practitioners agree that crying is beneficial for mental health but people still regard it as a sign of failure and bottle up their feelings. A famous Chinese author once said to cry is normal, and even brave. Those who display their emotions can deal with their troubles bravely after the tears dry, while those who soldier on let problems fester（恶化）.
In the Chaoyang district of Beijing, there is a special place for people to cry their sadness out. It is called “Cry Bar”. On the door of each of its “cry rooms” there is a saying encouraging people to let the tears flow freely.
“Crying is a kind of therapy, but it needs some direction,” said Milulu, a psychologist.
“People should realize the point of crying is to relieve pressure, but some of the young people who come to the Cry Bar simply sit and weep. The purpose of crying is to make it easier to improve your life after the tears dry, not to get lost in bad memories.”
Crying is only one way of relieving pressure, and we need to face problems squarely and solve them once the tears have dried, said Mululu.
【小题1】Crying _____ made Guo Meng feel better.
| A．with some friend | B．all the night with a toy |
| C．during her sleep | D．in bed before sleep |
| A．get rid of their sadness | B．bottle up their feelings |
| C．act on psychologists’ advice | D．face their troubles bravely |
| A．Think of every sad experience they’ve had and cry |
| B．Keep crying as loudly as long as possible. |
| C．Satisfy any desire to cry and weep until it is gone. |
| D．Hold back their tears until they can’t help but cry. |
| A．is to relieve pressure | B．must help to solve problems |
| C．means facing problems squarely | D．can’t weaken sad feelings. |
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科目：高中英语 来源： 题型：阅读理解
People who averaged fewer than seven hours of sleep per night in the weeks before being exposed to the cold virus were nearly three times as likely to get sick as those who averaged eight hours or more, a new study found.
Researchers used frequent telephone interviews to track the sleep habits of more than 150 men and women aged 21 to 55 over the last few weeks. Then they exposed the subjects to the virus, quarantined (检疫隔离) them for five days and kept track of who got sick.
Besides sleeping more, sleeping better also seemed to help the body fight illness: Patients who fared better on a measure known as “sleep efficiency”—the percentage of time in bed that you’re actually sleeping—were also less likely to get sick.
The results held true even after researchers adjusted for elements such as body-mass index, age, sex, smoking and pre-existing antibodies (抗体) to the virus.
The researchers aren’t exactly sure why sleeping better makes you less likely to develop a cold. But they do try to give an answer: “Sleep disturbance influences the regulation of symptom mediators (调节因子) that are released in response to infection.” In plain English, maybe tossing and turning when you’re infected with the cold virus contributes to the symptoms that define a cold.
The researchers were based at Carnegie Mellon, the University of Pittsburgh and the University of Virginia, and the study was funded by the National Institutes of Health.
【小题1】 According to the passage, what does the underlined word “subjects” mean in paragraph 2?
| A．areas of knowledge in a school |
| B．people being studied in an experiment |
| C．research topics |
| D．animals being tested |
| A．the researchers obtain information about the sleep habits by frequent interviews |
| B．the researchers do their research in the National Institutes of Health |
| C．people hope to avoid being infected with a cold by sleeping as much as possible |
| D．sleeping more and better helps regulate the symptom mediators |
| A．The Relationship Between Virus and Cold |
| B．How to Sleep Well |
| C．Good Sleep Helps Fight a Cold |
| D．The More the Sleep, the Better Your Body |
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