Crossing your legs is an extremely common habit. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.
A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason this happens is because the blood in your legs has to work against gravity to be pumped back to your heart, crossing one leg over the other increases resistance, making it even harder for the blood to circulate. You won’t feel any immediate effects, but sitting for long periods of time will hurt you forever.
Crossing your legs can also lead to neck and back pain. Ideally, it’s best for our bodies to sit with our feet planted flat, hip width apart, on the floor, but it’s not easy to maintain perfect posture all day at the office. When you sit with your legs crossed your hips are in a twisted position, which can cause one of your pelvic bones(骨盆) to rotate. Since your pelvic bone supports your neck and spine(脊椎), this can cause pressure on your lower and middle back and neck.
You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get painful or have the feeling of being asleep. This is because when one leg sits on top of the other it causes pressure on the veins(静脉) and nerves in your legs and feet. It can cause numbness and/or temporary paralysis in the legs, ankles, or feet. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.
So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.
1.Which of the following is not the consequence of crossing legs?
A. Neck and back get hurt.
B. Feet and legs become numb.
C. Blood pressure goes up.
D. Pelvic bones keep perfect postures.
2.What does the underlined word “rotate” in Para3 mean?
A. break seriously
B. hurt greatly
C. move casually
D. straighten suddenly
3.What does the text mainly talk about?
A. How to choose a proper sitting posture
B. It is advisable not to sit with legs crossed
C. How to develop beneficial habits
D. Blood pressure harms our bodies.
高三英语阅读理解简单题
Crossing your legs is an extremely common habit. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.
A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason is that crossing one leg over the other increases resistance, making it even harder for the blood to circulate and increase your blood pressure. Thus, you shouldn’t have your legs crossed for more than 15 minutes, and it’s important that you get up and walk around at least once every hour.
Crossing your legs can also lead to neck and back pain. Ideally, it’s best for our bodies to sit with our feet planted flat on the floor. When you sit with your legs crossed your hips are in a twisted position, which can cause pressure on your lower and middle back and neck.
You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get painful. This is because when one leg sits on top of the other, it causes pressure on the veins and nerves in your legs and feet. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.
So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.
1.A study published in Blood Pressure Monitoring showed that .
A. crossing your legs can raise your blood pressure
B. crossing one leg over the other can increase the blood circulation
C. you should have your legs crossed once every hour
D. you should get up and walk around for more than 15 minutes
2.Crossing your legs can cause some health problems except .
A. pressure on veins and nerves in legs and feet
B. permanent nerve damage
C. unstable posture
D. neck and back pain
3.What seems to be the writer’s attitude toward crossing legs?
A. Supportive. B. Negative.
C. Casual. D. Confused.
高三英语阅读理解中等难度题查看答案及解析
Crossing your legs is an extremely common habit. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.
A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason this happens is because the blood in your legs has to work against gravity to be pumped back to your heart, crossing one leg over the other increases resistance, making it even harder for the blood to circulate. You won’t feel any immediate effects, but sitting for long periods of time will hurt you forever.
Crossing your legs can also lead to neck and back pain. Ideally, it’s best for our bodies to sit with our feet planted flat, hip width apart, on the floor, but it’s not easy to maintain perfect posture all day at the office. When you sit with your legs crossed your hips are in a twisted position, which can cause one of your pelvic bones(骨盆) to rotate. Since your pelvic bone supports your neck and spine(脊椎), this can cause pressure on your lower and middle back and neck.
You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get painful or have the feeling of being asleep. This is because when one leg sits on top of the other it causes pressure on the veins(静脉) and nerves in your legs and feet. It can cause numbness and/or temporary paralysis in the legs, ankles, or feet. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.
So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.
1.Which of the following is not the consequence of crossing legs?
A. Neck and back get hurt.
B. Feet and legs become numb.
C. Blood pressure goes up.
D. Pelvic bones keep perfect postures.
2.What does the underlined word “rotate” in Para3 mean?
A. break seriously
B. hurt greatly
C. move casually
D. straighten suddenly
3.What does the text mainly talk about?
A. How to choose a proper sitting posture
B. It is advisable not to sit with legs crossed
C. How to develop beneficial habits
D. Blood pressure harms our bodies.
高三英语阅读理解简单题查看答案及解析
Crossing your legs is an extremely common habit; most people don’t even notice that they’re doing it when they sit down. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.
A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason this happens is because the blood in your legs has to work against gravity to be pumped back to your heart, crossing one leg over the other increases resistance, making it even harder for the blood to circulate. This causes your body to increase your blood pressure to push the blood back to the heart. You won’t feel any immediate effects, but if you sit for long periods of time it’s important that you take note of how long you have your legs crossed for. You shouldn’t have your legs crossed for more than 15 minutes, and it’s important that you get up and walk around at least once every hour.
Crossing your legs can also lead to neck and back pain. Ideally, it’s best for our bodies to sit with our feet planted flat, hip width apart, on the floor, but it’s not easy to maintain perfect posture all day at the office. When you sit with your legs crossed your hips are in a twisted position, which can cause one of your pelvic bones to rotate. Since your pelvic bone supports your neck and spine, this can cause pressure on your lower and middle back and neck.
You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get tingly or have the feeling of being asleep. This is because when one leg sits on top of the other it causes pressure on the veins and nerves in your legs and feet. It can cause numbness and/or temporary paralysis in the legs, ankles, or feet. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.
So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.
1.Why can sitting with your legs crossed increase your blood pressure?
A. Because it stops the blood circulating
B. Because it press the nerves in our legs.
C. Because we will be in a twisted position when we sit legs crossed.
D. Because it prevents the blood in your legs from pumping back to heart.
2.Which kind of health problems will we have if we cross the legs for a long time?
A. our blood pressure will increase.
B. Our neck and back will pain.
C. Our feet and legs may get tingly or have the feeling of being asleep.
D. Both A, B and C.
3.What does the author suggest us do when we sit down?
A. We should walk outside at least once every hour.
B. We need put one leg on the top of the other.
C. We’d better sit with our feet planted flat, hip width apart, on the floor.
D. We should choose the most comfortable way to sit.
高三英语阅读理解中等难度题查看答案及解析
Crossing your legs is an extremely common habit; most people don't even notice that they're doing it when they sit down. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.
A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason for this is that the blood in your legs has to work against gravity to be pumped back to your heart and that crossing one leg over the other increases resistance, making it even harder for the blood to circulate. This causes your body to increase your blood pressure to push the blood back to the heart. You won't feel any immediate effects, but repeated, drawn-out increases in blood pressure can cause long-term health issues. So, planning to sit for a long period of time? Don't keep your legs crossed.
Crossing your legs at the knee can also cause pressure on the major nerve in your leg that passes just below your knee and along the outside of your leg, explains Richard Graves, a medical expert. This pressure can cause numbness and temporary paralysis (麻痹) of some of the muscles in your foot and leg, preventing you from being able to raise your ankle—what we know as that “pins and needles” sensation. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.
So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.
1.What can we learn about crossing one's legs?
A. It is a very bad social habit.
B. It is usually practiced deliberately.
C. It can make others feel uncomfortable.
D. It can do harm to people's health.
2.According to the study, sitting with your legs crossed can______.
A. resist gravity effectively B. affect your blood pressure
C. lead to heart attacks easily D. improve the function of legs
3.In the third paragraph "pins and needles" probably means______.
A. serious muscle injuries B. being a little nervous
C. slight sharp pains D. being highly flexible
4.What is the main purpose of the text?
A. To give readers some advice. B. To compare common habits.
C. To evaluate effects of an experiment. D. To introduce research methods.
高三英语阅读理解中等难度题查看答案及解析
Crossing your legs is an extremely common habit; most people don’t even notice that they’re doing it when they sit down. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.
A study published in Blood pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason for this is that the blood in your legs has to work against gravity to be pumped back to your heart and that crossing one leg over the other increases resistance, making it even harder for the blood to circulate. This causes your body to increase your blood pressure to push the blood back to the heart. You won’t feel any immediate effects, but repeated, drawn-out increases in blood pressure can cause long-term health issues. So, planning to sit for a long period of time? Don’t keep your legs crossed.
Crossing your legs at the knee can also cause pressure on the major nerve in your leg that passes just below your knee and along the outside of your leg, explains Richard Graves, a medical expert. This pressure can cause numbness and temporary paralysis(麻痹)of some of the muscles in your foot and leg, preventing you from being able to raise your ankle—what we know as that “pins and needles” sensation. While the feeling of discomfort may only last a minute or two, repeatedly crossing your leg until they feel numb can cause permanent nerve damage.
So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.
1.According to the study, sitting with your legs crossed can ______.
A. affect your blood pressure
B. resist gravity effectively
C. lead to heart attacks easily
D. improve the function of legs
2.What can we learn about crossing one’s legs?
A. It is a very bad social habit.
B. It is usually practiced deliberately
C. It can do harm to people’s health.
D. It can make others feel uncomfortable.
3.In the third paragraph “pins and needles” probably means “_____”
A. slight sharp pains B. being a little nervous
C. serious muscle injuries D. being highly flexible
4.What is the main purpose of the text?
A. To compare common habits.
B. To give readers some advice.
C. To evaluate effects of an experiment.
D. To introduce research methods.
高三英语阅读理解中等难度题查看答案及解析
Crossing your legs is an extremely common habit; most people don’t even notice that they’re doing it when they sit down. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.
A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason this happens is because the blood in your legs has to work against gravity to be pumped back to your heart, crossing one leg over the other increases resistance, making it even harder for the blood to circulate. This causes your body to increase your blood pressure to push the blood back to the heart.
Crossing your legs can also lead to neck and back pain. When you sit with your legs crossed, your hips are in a twisted position, which can cause one of your pelvic (骨盆的) bones to rotate. Since your pelvic bone supports your neck and spine, this can cause pressure on your lower and middle back and neck.
You also might notice that when you sit with your legs crossed for long periods of time, your feet and legs get tingly or have the feeling of being asleep. This is because when one leg sits on top of the other, it causes pressure on the veins (血管) and nerves in your legs and feet. It can cause numbness and/or temporary paralysis in the legs, ankles, or feet.
So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.
1.Crossing legs may lead to the following health problems except ________.
A. It can increase your blood pressure
B. It can cause pressure on your lower and middle back and neck
C. It will make your neck and spine twisted
D. It can cause paralysis for the time being
2.Why can crossing your legs increase your blood pressure?
A. Because the blood in your legs has to work against being pumped back to your heart.
B. Because it will prevent the blood circulating.
C. Because crossing legs results in less resistance for the blood to circulate.
D. Because higher blood pressure contributes to pushing the blood back to the heart.
3.What is the purpose of writing this article?
A. To persuade us not to cross our legs any longer.
B. To make us aware of the health problems caused by crossing legs.
C. To tell us the benefits of sitting with our feet on the floor.
D. To show that crossing legs is an extremely common habit.
高三英语阅读理解简单题查看答案及解析
Crossing your legs is an extremely common habit; most people don't even notice that they're doing it when they sit down. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.
A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason for this is that the blood in your legs has to work against gravity to be pumped back to your heart and that crossing one leg over the other increases resistance, making it even harder for the blood to circulate. This causes your body to increase your blood pressure to push the blood back to the heart. You won't feel any immediate effects, but repeated, drawn-out increases in blood pressure can cause long-term health issues. So, planning to sit for a long period of time? Don't keep your legs crossed.
Crossing your legs at the knee can also cause pressure on the major nerve in your leg that passes just below your knee and along the outside of your leg, explains Richard Graves, a medical expert. This pressure can cause numbness and temporary paralysis (麻痹) of some of the muscles in your foot and leg, preventing you from being able to raise your ankle—what we know as that “pins and needles” sensation. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.
So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.
1.What can we learn about crossing one's legs?
A. It is a very bad social habit.
B. It is usually practiced deliberately.
C. It can do harm to people's health.
D. It can make others feel uncomfortable.
2.According to the study, sitting with your legs crossed can______.
A. affect your blood pressure
B. resist gravity effectively
C. lead to heart attacks easily
D. improve the function of legs
3.In the third paragraph "pins and needles" probably means______.
A. slight sharp pains
B. being a little nervous
C. serious muscle injuries
D. being highly flexible
4.What is the main purpose of the text?
A. To compare common habits.
B. To give readers some advice.
C. To evaluate effects of an experiment.
D. To introduce research methods.
高三英语阅读理解中等难度题查看答案及解析
Your children are watching you. 1. According to the Health Program, developing healthy habits is an important part for your children. And when it comes to developing healthy habits, parents influence their children more than anyone else.
2.What happens during those early years can influence children for the rest of their lives. This includes some eating and exercise habits. Children are very careful, even at a young age. Children watch what others do carefully and imitate the behaviors of those closest to them. As parents, you should do the following: 3. If you do that, your children are more likely to be enthusiastic about developing theirs.
Let your children see you taking care of your own physical health by eating fruits and vegetables. Talk to them about healthy habits in appropriate terms and at a proper time.4.
5. Computers, televisions and other forms of technology are a major part of life in the 21st century. Unfortunately, as the use of technology in the home increases, so docs the time spent watching TV or playing on the computer. So as parents, you should also arrange the time for your children wisely.
A. Don’t get rid of technology, but use it wisely.
B. Take part in physical activities and exercise regularly.
C. Be enthusiastic about developing healthy habits of your own.
D. Your actions are speaking to them louder than your words will.
F. Children prefer to imitate their parents rather than listen to them.
F. This can be helpful to teach your children to form good eating habits.
G. It s easy for the children to form their healthy habits when they are young.
高三英语七选五中等难度题查看答案及解析
Your children are watching you. 1. According to the Health Program,developing healthy habits is an important part for your children. And when it comes to developing healthy habits, parents influence their children more than anyone else.
2. What happens during those early years can influence children for the rest of their lives. This includes some eating and exercise habits. Children are very careful, even at a young age. Children watch what others do carefully and imitate the behaviors of those closest to them. As parents, you should do the following: 3. If you do that, your children are more likely to be enthusiastic about developing theirs.
Let your children see you taking care of your own physical health by eating fruits and vegetables. Talk to them about healthy habits in appropriate terms and at a proper time. 4.
5. Computers,televisions and other forms of technology are a major part of life in the 21st century. Unfortunately, as the use of technology in the home increases, so docs the time spent watching TV or playing on the computer. So as parents, you should also arrange the time for your children wisely.
A. Take part in physical activities and exercise regularly.
B. Don’t get rid of technology, but use it wisely.
C. Be enthusiastic about developing healthy habits of your own.
D. Your actions arc speaking to them louder than your words will.
F. Children prefer to imitate their parents rather than listen to them.
F. This can be helpful to teach your children to form good eating habits.
G. It s easy for the children to form their healthy habits when they arc young.
高三英语七选五中等难度题查看答案及解析
While your pet fish may appear to be ignorant of your presence, chances are that it knows you extremely well and can probably even identify you from a crowd of human faces! At least, that is the conclusion reached by scientists the University of Oxford in the U.K. and the University of Queensland in Australia, following an extensive study of the archerfish (喷水鱼), a species of tropical fish that can be found all the way from India to Indonesia, the Philippines, and Australia.
The ability to distinguish between human faces is a complex task. That’s because we all have the same basic features — two eyes sitting above a nose and a mouth. It’s only the subtle differences that make humans distinct from one another. Since this requires a combination of both visual sense and memory, researchers had always assumed that it was a skill possessed only by those with complicated brains, i.e., humans, a few select animals — such as horses, cows, dogs, monkeys and some birds, like pigeons.
To test if this assumption was accurate, a team of scientists led by Dr. Cait Newport, Marie Curie Research Fellow in the Department of Zoology at Oxford University, decided to study fish. The aquatic (水生的) animals have small brains that lack the neocortex(大脑新皮层), or neocortex-like structure, believed to help recognize the subtle differences between human facial features.
The team began by presenting four archerfish with images of two human faces. Initially, the fish spat randomly at both. However, they soon learned that pouring water at the one selected by the researchers earned them a food treat. After that, they focused primarily on that image. The researchers then took the experiment one step further, by introducing 44 other human faces to the mix.
To the researcher’s astonishment, the trained archerfish were able to recall the learned image almost 81% of the time. And this accuracy improved to 86% when the researchers made the identification even harder, by replacing the colored photos with a set of black and white images and hiding the shape of the head.
1.What is the conclusion of the study made by the scientists from the universities?
A. Some fish may ignore your presence.
B. Some fish can recognize your faces.
C. Some fish have complicated brains.
D. Some fish have large brains.
2.What does the underlined word “it” in Paragraph 2 refer to?
A. The ability to distinguish between human faces.
B. A combination of visual sense and memory.
C. The ability of memorizing complicated things.
D. The ability of telling beasts from birds.
3.In the experiment, the researchers trained the archerfish _______.
A. by taking photos of fish
B. by improving people’s images
C. by rewarding them with food
D. by covering their heads
高三英语阅读理解中等难度题查看答案及解析