When you think of all the ways your body can get hurt---falling off a bike, stepping on a nail, being bitten by a crazed dog---the aches and pains that come from sitting at a computer may not seem like much.
But more doctors are getting worried about just that. If you sit at a PC the wrong way, the nerves and muscles in your back, neck and arms can get out of line.
Ergonomics is the study of how people work and how jobs and equipment can be designed so that people are safer and more comfortable in the things they do---whether that’s working on a factory assembly line or sitting in front of a computer.
The monitor
You should not have to tilt(倾斜) your neck up or down to lock at the screen. Your eyes should be level with the top of the screen.
How far away should you sit? Reach your arm out so your fingertips just touch the screen.
The keyboard
It should be directly in front of you. Don’t unfold the legs on the bottom of the keyboard so that it tilts up toward you---it should be as flat as possible, or even tilted away from you. You want your wrists “neutral,” which means straight, not bent. This puts less strain on your nerves and muscles.
Arms should be close to the body. Don’t look at your fingers as you type. Use a document holder to hold papers at the same level as the monitor. Keep the mouse on the same level as the keyboard and close by--- so you don’t have to reach for it.
The chair
Your feet shouldn’t dangle---the blood will pool in your feet. They should rest flat on the floor, or on phone books, if necessary. Your back needs support. Roll up a towel and stick it there.
The Body
If you think of your body as a collection of right angles when you sit at a computer, you should be just fine.
Your hips should be at a 90-degree angle to your back. That takes the pressure off the spine. And your knees should bend at a 90 degree angle so your feet are flat.
1.The passage mainly talks about________.
A.avoiding pains caused by using PC B.the science of ergonomics
C.illness caused by a computer D.how to keep fit
2.The underlined word “ergonomics” most probably means ______ in Chinese.
A.管理学 B.人机工程学 C.机械工程学 D.经济学
3.How high should a monitor be placed according to the passage?
A.As high as your arms.
B.A little higher than your eyes.
C.A little lower than your eyes.
D.At the same level as your eyes.
4.How shouldn’t a keyboard be placed?
A.Tilting away from you. B.Tilting up toward you.
C.Flat. D.Not mentioned.
5.How should you place your foot?
A.Rest them on a phone book. B.Rest them on the floor.
C.They should rest flat. D.They should dangle.
高一英语阅读理解中等难度题
When you think of all the ways your body can get hurt---falling off a bike, stepping on a nail, being bitten by a crazed dog---the aches and pains that come from sitting at a computer may not seem like much.
But more doctors are getting worried about just that. If you sit at a PC the wrong way, the nerves and muscles in your back, neck and arms can get out of line.
Ergonomics is the study of how people work and how jobs and equipment can be designed so that people are safer and more comfortable in the things they do---whether that’s working on a factory assembly line or sitting in front of a computer.
The monitor
You should not have to tilt(倾斜) your neck up or down to lock at the screen. Your eyes should be level with the top of the screen.
How far away should you sit? Reach your arm out so your fingertips just touch the screen.
The keyboard
It should be directly in front of you. Don’t unfold the legs on the bottom of the keyboard so that it tilts up toward you---it should be as flat as possible, or even tilted away from you. You want your wrists “neutral,” which means straight, not bent. This puts less strain on your nerves and muscles.
Arms should be close to the body. Don’t look at your fingers as you type. Use a document holder to hold papers at the same level as the monitor. Keep the mouse on the same level as the keyboard and close by--- so you don’t have to reach for it.
The chair
Your feet shouldn’t dangle---the blood will pool in your feet. They should rest flat on the floor, or on phone books, if necessary. Your back needs support. Roll up a towel and stick it there.
The Body
If you think of your body as a collection of right angles when you sit at a computer, you should be just fine.
Your hips should be at a 90-degree angle to your back. That takes the pressure off the spine. And your knees should bend at a 90 degree angle so your feet are flat.
1.The passage mainly talks about________.
A.avoiding pains caused by using PC B.the science of ergonomics
C.illness caused by a computer D.how to keep fit
2.The underlined word “ergonomics” most probably means ______ in Chinese.
A.管理学 B.人机工程学 C.机械工程学 D.经济学
3.How high should a monitor be placed according to the passage?
A.As high as your arms.
B.A little higher than your eyes.
C.A little lower than your eyes.
D.At the same level as your eyes.
4.How shouldn’t a keyboard be placed?
A.Tilting away from you. B.Tilting up toward you.
C.Flat. D.Not mentioned.
5.How should you place your foot?
A.Rest them on a phone book. B.Rest them on the floor.
C.They should rest flat. D.They should dangle.
高一英语阅读理解中等难度题查看答案及解析
A headache is the feeling you get when your head hurts. Headaches can differ from very mild to incredibly powerful. They can last anywhere from 10 minutes to hours. Very bad headaches are called migraines. People who suffer from migraine headaches often need to take the day off from school or work and lie in bed all day.
Why do people get headaches? There are many possible causes. People who drink too much caffeine (in coffee or soft drinks, for example) or alcohol can end up with headaches. This is because these kinds of drinks take water away from the body. If the brain doesn’t have enough water, it gets smaller and pulls away from the head. This can be extremely painful. The best way to get rid of this kind of headache is just to drink lots of water.
Tension headaches happen when the body's muscles are too tight. When people feel stress, it is common for the muscles near the head to become tense. Tension headaches might also be caused by not getting enough sleep. Some people suffer from tension headaches for only short times but for other people, these kinds of headaches are a chronic problem that happens again and again. A massage (按摩) might help to stop a tension headache. If that doesn't help, you might need to see a doctor.
Headaches can also be caused by much bigger health problems. For example, a head or neck injury can cause them. Headaches can also be a warming sign of a heart attack.
1.In the article, how long can a headache last?
A.at least 10 hours. B.about 10 minutes.
C.from minutes to hours D.more than 10 hours.
2.Why can caffeine cause headaches?
A.Because it makes the head gets smaller.
B.Because it makes the skull gets bigger.
C.Because it takes water away from the body.
D.Because it gives the body too much water.
3.The word ''chronic'' in paragraph 3 have the same meaning with______.
A.terrific B.repeated
C.rare D.interesting
4.Why should someone with lots of headaches visit a doctor?
A.They might need to drink water. B.They might need to talk.
C.They might have a bigger problem. D.They might need more medicine.
高一英语阅读理解中等难度题查看答案及解析
“When can I get a cell phone?” The answer is when your parents think you need one, though many kids seem to be getting them around age 12 or 13. Some younger kids may have them because their parents see it as a matter of safety and convenience. For example, a kid can call mom and dad when sports practice is over. And a cell phone can give kids almost instant access(快捷通道) to their parents if something goes wrong or they need help. It can give parents quick access to their kids so they can check on them and make sure they’re OK.
If you do get a cell phone, make some rules with your parents, such as how many minutes you’re allowed to spend on the phone, when you can use your phone, when the phone must be turned off, and what you will do if someone calls you too often, and so on.
You’ll also have to learn to take care of the phone in your life. Keep it charged(充电) and store it in the safe place so it doesn’t get lost. And whatever you do, don’t use it in the bathroom. I know someone who dropped her phone in the toilet!
1.Parents buy cell phones for their kids because ___________.
A. they think it is necessary
B. they think their kids are old enough
C. they have asked the author for advice
D. they want to follow their kids wherever they are.
2.The author of the passage ___________.
A. wants to describe how children use cell phones
B. knows nothing about when children can have a cell phone
C. may have done a survey on kids using cell phones
D. has been a teacher for many years
3.Which of the following is true?
A. It is too young for kids of 12 or 13 to get a cell phone.
B. A cell phone is useful for kids and their parents.
C. The author is against the idea of kids to have cell phones.
D. Most kids are considering having cell phones.
4.Who is the passage most probably written by?
A. Parents who have bought phones for their kids.
B. Someone who does cell phone business.
C. A teacher who cares most about school safety.
D. Someone who works for children’s education.
5.Which might not be a rule for kids with a cell phone?
A. Keep it on all the time.
B. Make a call if something goes wrong.
C. Don’t use it in the bathroom.
D. Take care not to lose it.
高一英语阅读理解中等难度题查看答案及解析
As people age, the body changes in all sorts of predictable ways. Brains can slow. Wounds take longer to recover. And sleep patterns(模式) shift, too. This can come as news to many, says Michael V. Vitiello, a psychologist at the University of Washington who is expert in sleep in aging.
The most noticeable---and often most annoying---changes are how sleep and wake-up times change and sleep gets lighter, often beginning in middle age. Gone are weekend sleep to 11 a.m. and the ability to sleep through a noisy garbage truck down the block.
But not every restless night can be ignored. Studies have found that poor sleep can create a particular threat to older adults---Falls, depression and anxiety, problems with memory, and increased suicide(自杀) risk are among the effects of sleep issues in this population group that researchers have found. But scientists are still unsure why those risk connections exist.
What is clear is the connection between good sleep and psychological well-being in older adults. A 2010 study showed us that connection when it came to sleep quality, but sleep quantity didn't show the same effects. And that, experts say, may be the key to understanding sleep as you age. If you're sleeping less, but don't feel negative effects out of bed, the changes you notice may just be normal age-related.
Over time, Vitiello says, sleep patterns simply change. "A lot of older adults recognize that they don't sleep the same as they did when they were 18, but they can still function and they're OK. And all is well with the universe."
1.What can we learn from the second paragraph?
A. As a person ages, his sleep quality becomes worse.
B. People in old age often sleep late and wake up early.
C. People in old age often sleep to 11 a.m. at weekends.
D. As a person ages, he adapts to the noisy surroundings.
2.What may result in poor psychological health for the elderly?
A. Sleep of low quality. B. A small quantity of sleep.
C. Sleep of high quality. D. A large quantity of sleep.
3.What attitude should we have towards sleep as we become old?
A. Negative. B. Frustrated. C. Scientific. D. Disappointed.
4.What is the main idea of the passage?
A. Sleep pattern and weight. B. Sleep pattern and age.
C. Negative effects of aging. D. Positive effects of sleep.
高一英语阅读理解困难题查看答案及解析
When someone has deeply hurt you, it can be very difficult to let go of your grudge. But forgiveness is possible and it can be surprisingly helpful to your physical and mental health. Indeed, research has shown that people who forgive have more energy, better appetite (胃口) and better sleep. “People who forgive show less anger and more hopefulness,” says Dr. Frederic Luskin, who wrote the book Forgive for Good. “So it can help save on the wear and tear(消耗) on our body and make people feel more energetic.”
So when someone has hurt you, calm down first. Take plenty of breath deeply and think of something that gives you pleasure: a beautiful scene in nature, someone you love. Don’t wait for an apology. “Many times the person who hurts you may never think of apologizing,” says Dr. Luskin. “They may have wanted to hurt you or they just don’t see things the same way. So if you wait for people to apologize, you could be waiting a very long time.” Keep in mind that forgiveness does not necessarily mean accepting the action of the person who makes you angry. Mentally going over your hurt gives power to the person who brought you pain. Instead, learn to look for the love, beauty and kindness around you. Finally, try to see things from the other person’s perspective(视角). You may realize that he or she was acting out of ignorance, fear, even love. To gain perspective, you may write a letter to yourself from that person’s point of view.
1.The underlined word “grudge” in the first paragraph most probably means _________.
A. understanding B. forgiveness
C. pity D. anger
2.According to the writer, what is the right way to calm down after being hurt?
A. Try to make sure why you get hurt.
B. Write a letter to the person who hurt you.
C. Think about pleasant things and forget about the hurt.
D. Tell yourself to accept what others have done to you.
3.Dr. Luskin advises us not to wait for an apology after being hurt because ______.
A. people seldom want to apologize
B. we’d feel worse accepting others’ apology
C. we are not patient enough
D. people don’t mean it when they apologize
4.This passage is mainly written to explain _______.
A. how to keep yourself from being hurt
B. why and how to forgive others
C. how and when to stay calm
D. how to stay mentally healthy
高一英语阅读理解中等难度题查看答案及解析
I don’t think he can pay off all the debt when he gets paid, ______?
A.do I | B.don’t I | C.can he | D.can’t he |
高一英语单项填空简单题查看答案及解析
– Mom, I just can’t fall asleep thinking of the interview tomorrow.
-- _____ You are sure to make it.
A.Don’t worry! B.Take it easy. C.Why not? D.What’s up?
高一英语单项填空中等难度题查看答案及解析
What way are you thinking of _____ rid of the flies?
A.to get B.getting C.being got D.to be getting
高一英语单项填空中等难度题查看答案及解析
If the way ___ you think of is not good enough, you can learn the way____ the top students deal with their study.
A. in which; \ B. which; which
C. that; which D. \;\
高一英语单项填空中等难度题查看答案及解析
If the way _____ you think of is not good enough, you can learn the way ______the top students deal with their study.
A.in which; / B.which; which
C.that; which D./; /
高一英语单项填空中等难度题查看答案及解析