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.
【小題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 |
【小題1】C
【小題2】C
【小題3】B
【小題4】D
【小題5】C
解析試題分析：本文指出電腦可以傷害你。大多數(shù)其他的傷病是突然發(fā)生的，但是電腦傷害的發(fā)生是緩慢的。并且告訴人們使用電腦時如何保護(hù)自己的一些方法
【小題1】C細(xì)節(jié)理解題。根據(jù)第三段提到Y(jié)our eyes--Too much light can injure your eyes, so never sit too close to a computer screen還有第五段Your hands--Hand injuries can happen because the hands are moved in the same way hundreds of times還有第六段提到Y(jié)our back--Some people sit for many hours in front of a computer.電腦會傷害你的眼，手還背部，故選C項。
【小題2】C細(xì)節(jié)理解題，根據(jù)文中語句“Too much light can injure your eyes, so never sit too close to a computer screen.”理解可知強光會傷害你的眼睛，不要做得太近離屏幕，故選C項。
【小題3】B細(xì)節(jié)理解題。根據(jù)短文描述Remember to look away from it sometimes. This gives your eyes a rest.,可知工作中時常的休息,對眼睛和手來說是安全的,故選B
【小題4】D 細(xì)節(jié)理解題。根據(jù)最后一段提到Enjoy your computer, but use it safely.享受你的電腦，但要正確的運用，可知并不是說電腦對你的健康有壞處，而是講合理應(yīng)用，故選D項。
【小題5】C主旨大意。這篇短文主要描述了使用電腦過程中的一些安全問題,故選C,如何安全的使用電腦。
考點：健康類閱讀。
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英語小英雄天天默寫系列答案科目：高中英語 來源： 題型：閱讀理解
Read this article and find out which one is a must-read for your children for Thanksgiving. 
Clifford’s Thanksgiving Visit
Clifford has to stay home with his neighbors, as Emily Elizabeth’s family goes visiting her grandmother. At first, Clifford feels lonely, thinking of his own family, but then he decides to visit his mother too. He travels many miles, crosses bridges, and he even gets into the subway! Follow Clifford’s trip to the big city! At http://www.powells.com. it is $3.99. The author is Norman Bridwell. It is for children aged 4-8.
The Magic Tree House
The Magic Tree House describes how Jack and Annie return back to the eve of the first Thanksgiving. There they meet the pilgrims(移民) as well as Squanto, a native American who helped them. The story offers an age-appropriate, in-depth picture of what life was really like for early settlers, as well as their adventures and excitements. It is for ages 4-8. The book costs $2.50 at http://www.powells.com. The author is Sal Murdocca.
Franklin’s Thanksgiving
Franklin thinks that there will be an over-abundance of food for Thanksgiving dinner. So he invites his teacher and friends for Thanksgiving dinner. It costs $2.50 at www.Powells.com. The book is for children aged 4-8. The author is Paulette Bourgeois.
The First Thanksgiving
The First Thanksgiving is for ages 4-8 and it tells about the story of the pilgrims’ learning languages. It is beautifully illustrated with plenty of beautiful watercolors(水彩畫). The author is James Waiting and the price of the book is $2.50. You can find it on http://www.powells.com.
【小題1】Clifford travels to the big city probably because ________.
| A．he is eager to visit his grandmother |
| B．he is not happy at home |
| C．he misses his neighbors very much |
| D．he likes traveling very much |
| A．Clifford’s Thanksgiving Visit | B．The Magic Tree House |
| C．Franklin’s Thanksgiving | D．The First Thanksgiving |
| A．teachers | B．other readers | C．pictures | D．computers |
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科目：高中英語 來源： 題型：閱讀理解
Although considered an excellent exercise, jumping rope has never received widespread acceptance because of two reasons. First, most people recognize jumping rope as an excellent form of cardiovascular(心血管的)exercise, but they also believe that it is simply too difficult. In other words, they don’t think they’ll be able to continue jumping for the near 20 minutes in order to achieve a beneficial physical effect. Second, many regard it as somewhat boring and overly repetitive(重復(fù)乏味的)—not as something fun or enjoyable.
As a matter of fact, jumping rope can be great fun as long as you find a proper way to practise it. Instead of doing the usual two-foot bounce(跳)over and over again, players good at rope-jumping often change their pattern every 10 or 20 jumps: a single bounce, a double-bounce, a skip, a knee-up, side swings, as well as a variety of other easy-to-learn free-style rope-jumping.
Nowadays researchers are discovering that jumping rope also prepares the brain for learning. It is an exercise allowing both brain hemispheres(半球)to perform equally to each other.
In short, jumping rope can be a life-long activity requiring little equipment, time and space, yet leading to a much healthier life.
【小題1】 One reason that can explain why rope-jumping has not spread widely is that
.
| A．it benefits the cardiovascular system |
| B．it is too difficult for people to learn to jump |
| C．it is believed to be boring and repetitive |
| D．it requires little equipment, time and space |
| A．there is only one proper way to follow |
| B．the usual way should not be used again |
| C．the easiest way is always the best one |
| D．there are different kinds of ways to follow |
| A．only prepares the brain for learning |
| B．is suitable for students only |
| C．helps both brain hemispheres work together |
| D．can be dangerous for old people |
| A．He is strongly against it. |
| B．He is for it. |
| C．The passage doesn’t mention it. |
| D．He knows little about it. |
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科目：高中英語 來源： 題型：閱讀理解
There have always been a lot of commonly believed but false ideas about being fat and doing exercise. Some people believe that they can’t help putting on weight as they get older, while others hold that if they stop exercising, their muscles will turn into fat. Here are some more myths:
I’ll never lose weight --- I come from a fat family
Wrong! While we can’t change the body type we are born with, we can’t blame our genes for making us fat. There’s plenty of evidence that fatness runs in families, and the main reason is that they share the same habits of eating too much and exercise too little.
I am fat because I burn calories slowly
Wrong! Fatness is not caused by a slow metabolism（新陳代謝）. If fact, although fat people consume more energy that slim people, they also fail to realize how much they eat! Keeping a diary can help you work out your daily food intake more accurately.
Exercise is boring
Wrong! Anything will become boring if you do it repetitively. The key is to develop a balanced and varied program that’s fun as well as progressive. If you enjoy a Sunday walk, take a different route. If you do Yoga, try a tai chi class. If you like swimming, set yourself a distance or time challenge.
No pain, no gain
Wrong! Exercise is not meant to hurt. Indeed, pain is your body telling you something’s wrong, and continuing to exercise could lead to serious injury. You may experience mild discomfort as you begin to exercise regularly, but this your body adapting to the positive changes in your lifestyle and the aches should disappear relatively quickly. If you don’t, rest and seek medical advice.
【小題1】What does the author think about being fat?
| A．It is the family genes that make people fat. |
| B．People are fat because they consume too little energy. |
| C．A diary of exercise can prevent people from becoming fat. |
| D．It is the consequence of people’s unbalanced lifestyle. |
| A．By taking varied exercise. |
| B．By choosing simple exercise. |
| C．By doing regular exercise. |
| D．By sticking to outdoor exercise. |
| A．Keeping fit is essentially a painful experience. |
| B．Exercise should be stopped if continuous pain is felt. |
| C．Pain in exercise is a precondition for reaching your goal. |
| D．Getting used to pain leads to positive changes in your body. |
| A．To declare the importance of keeping fit. |
| B．To clarify some misconceptions about fatness and exercise. |
| C．To confirm what has long been believed about keeping fit. |
| D．To explain some medical facts about being fat and doing exercise. |
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科目：高中英語 來源： 題型：閱讀理解
Dr. Sylvia Earle wants you to stop eating fish. It's not because fish are endangered, though wild fish stocks in many oceans are very low. It's not because they're bad for you, though fish in many areas are exposed to poisonous substances in the water. It’s because they're smart.
"Fish are sensitive, they have personalities," says the marine biologist. For Earle, eating a fish would be like eating a dog or a cat. "I would never eat anyone I know personally."
There's a lot more to fish than meets the eye: they talk to each other, they like to be touched, and they engage in behavior that can seem very human. They can remember things and learn from experience. Earle and a growing number of animal rights activists see these as strong arguments against eating fish altogether.
The activists also point out that fish feel pain and fish suffer horribly on their way from the sea to the supermarket. "While it may seem conspicuous that fish are able to feel pain, like every other animal, some people think of fish as swimming vegetables," says Dr. Lynne Sneddon. "Really, it's kind of a moral question. Is the enjoyment you get from fishing (or eating fish) more important than the pain of the fish?"
Fishermen and (fried) fish lovers are skeptical. "I've never seen a smart fish," says Marie Swaringen as she finishes off a plate of fish at a Seattle seafood restaurant. "If they were very smart, they wouldn't get caught."
"For years, everyone's been telling us to eat fish because it's so good for us," says another diner. "Now I've got to feel guilty while I'm eating my fish? What are they going to think of next? Don't eat salad because cucumbers have feelings?"
【小題1】According to Dr. Sylvia Earle, he would stop eating fish as a result of the following reasons EXCEPT ___________ .
| A．Fish are sensitive and have personalities |
| B．He knows fish very well |
| C．Fish are dangerous to eat because the water is polluted |
| D．Fish are clever |
| A．opposed | B．optimistic | C．indifferent | D．supportive |
| A．obvious | B．easy | C．impossible | D．necessary |
| A．Human beings should stop eating fish |
| B．We would feel guilty if we continued eating fish |
| C．People eat fish because fish are delicious |
| D．Cucumber is a kind of vegetable or fruit |
| A．To advise people to stop eating fish. |
| B．To introduce a topic of whether people should eat fish. |
| C．To advise people not to stop eating fish. |
| D．To tell us that fish will feel pain when caught and transported. |
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科目：高中英語 來源： 題型：閱讀理解
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(判斷) 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(藥) should never be taken except when suggested by a doctor.
【小題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 |
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科目：高中英語 來源： 題型：閱讀理解
A new study links heavy air pollution from coal burning to shorter lives in northern China. Researchers estimate that the half-billion people alive there in the 1990s will live an average of 5 years less than their southern counterparts because they breathed dirtier air.
China itself made the comparison possible: for decades, a now-discontinued government policy provided free coal for heating, but only in the colder north. Researchers found significant differences in both particulate pollution of the air and life expectancy in the two regions.
While previous studies have found that pollution affects human health, "the deeper and ultimately more important question is the impact on life expectancy," said one of the researchers, Michael Greenstone, a professor of environmental economics at Massachusetts Institute of 一Technology. "This study provides a unique setting to answer the life expectancy question because the(heating) policy dramatically changes pollution concentrations（含量），，，Greenstone said in an email. "Further, due to the low rates of migration in China in this period, we can know people's exposure over long time periods," he said.
The policy gave free coal for fuel boilers to heat homes and offices to cities north of the Huai Riv饑which divides China into north and south. It was in effect for much of the 1950-198,0 period of central planning, and, though discontinued after 1980, it has left a legacy（遺留） in the north of heavy coal burning, which releases particulate pollutants into the air that can harm human health. Researchers found no other government policies that treated China's north differently from the south.
The researchers collected data for 90 cities, from 1981 to 2000, on the annual daily average concentration of total suspended（懸浮的）particulates. In China, those are considered to be particulates that are 100 micrometers or less in diameter, sent out from sources including power stations, construction sites and vehicles. Among them, PM2.5 is of especially great health concern because it can go deep into the lungs.
The researchers estimated the impact on life expectancies using death data from 1991-2000． They found that in the north, the concentration of particulates was 184 micrograms per cubic meter一or 55 percent higher than in the south, and life expectancies were 5.5 years lower on average across all age ranges.
【小題1】The main idea of this passage is that＿·
| A．research in China finds air pollution shortened life expectancy |
| B．the government provided free coal for heating in North China |
| C．coal burning causes bad air quality across China |
| D．a(chǎn) new study finds different particulates in South China |
| A．power stations | B．construction sites |
| C．the free heating policy | D．gases from vehicles |
| A．coal is no longer used for heating in North China |
| B．a(chǎn)ir quality was comparatively better in South China |
| C．southerners burned coals for heating in the 1980s |
| D．people preferred to live in South China after 1980 |
| A．dirty clouds | B．particular smoke |
| C．harmful dust | D．dangerous bacteria |
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科目：高中英語 來源： 題型：閱讀理解
Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer， saying studies showed a clear link. "Our suggestion is for people to increase their intake， through diet or a vitamin supplement，" Dr. Cedric Garland said in a telephone interview.
Garland's research team reviewed 63 studies， including several large long-term ones， on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. "There's nothing that has this ability to prevent cancer，" he said， urging governments and public health officials to do more to fortify foods with vitamin D.Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health. Vitamin D is found in milk， as well as in some fortified orange juice， yogurt and cheeses， usually at around 100 international units （IU） a serving. People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day， Garland said， adding that it was well within the safety guidelines established by the National Academy of Sciences.
The authors said that taking more vitamin D could be especially important for people living in northern areas， which receive less vitamin D from sunshine.
African Americans， who don't produce as much of the vitamin because of their skin colour， could also benefit significantly from a higher intake， the authors said.
【小題1】 According to the passage， people are advised to take more Vitamin D because_________.
| A．it is nutritious |
| B．it can‘t harm people’s health |
| C．it is not taken enough every day |
| D．it can lower cancer risk |
| A．Have more meat | B．Have some sunshine |
| C．Have a vitamin supplement | D．Have more fortified cheese |
| A．A scientist | B．A health researcher |
| C．A doctor | D．A public health official |
| A．Fortified orange juice | B．Milk |
| C．Fortified yogurt | D．All of the above |
| A．Asian people | B．American people |
| C．European people | D．African people |
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