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 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 problems. So, panning 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 of some of the muscles in your foot and leg, preventing you from being able to raise your ankle. 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 by design.
C.It can make others feel uncomfortable. D.It has a negative effect on people’s heath.
2.We may conclude from the study that sitting with your legs crossed can ________.
A.improve the function of legs B.help your blood resist gravity
C.effect your blood pressure D.cause health problems instantly
3.According to Richard Graves, repeatedly crossing your legs may ________.
A.paralyze all of your muscles B.preventing you from standing up
C.damage your nerve in the leg in the end D.reduce the pressure on the major nerve
4.What is the main purpose of the text?
A.To blame a bad habit. B.To provide suggestions.
C.To introduce research methods. D.To show effects of an experiment.
高一英语阅读选择中等难度题
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(阻力), 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 problems. 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 on purpose.
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.
高一英语阅读理解中等难度题查看答案及解析
What do the world’s most successful people all have in common?
By examining the work habits of over 150 greatest writers and artists and scientists, the researchers including Standford Professor Jeffrey Preffer found that high achievers like Robert Moses turn out to be all alike:
Busy ! Busy!
1.In a study of general managers in industry, John Kotter reported that many of them worked 60 to 65 hours per week—which translates into at least six 10-hour days. The ability and willingness to work difficult and tiring hours has characterized many powerful figures. Energy and strength provide many advantages to those seeking to build power.
Just Say No!
The difference between successful people and very successful people is that very successful people say “no” to almost everything. And that’s what gives them the time to accomplish so much.2.And focus means saying “no” to a lot of distractions (分神).
Know What You Are!
Ignore your weakness and keep improving your strengths. Don’t waste time exploring skill areas where you have little competence. Instead, focus on—and build on—your strengths.3.
Create Good Luck!
Luck is not magical—there is a science to it. Richard Wiseman studied lucky people for his book Luck Factor, and broke down what they do right.4.By being more outgoing, open to new ideas, following the feeling that something is true, being optimistic, lucky people create possibilities.
Does applying these principles to your life actually work? Wiseman created a “luck school” to test the ideas—and it was a success. In total, 80 percent of people who attended Luck School said that their luck had increased.5.
A. Spend enough time to improve your weakness.
B. Achievement requires focus.
C. On average, these people reported that their luck had increased by more than 40 percent.
D. High achievers never stop working and they never lose a minute.
E. Busy people are more likely to be lucky.
F. This means knowing who you are, what you are and what you are good at.
G. Certain personality types are luckier because they behave in a way that offers the chance for good opportunities.
高一英语七选五中等难度题查看答案及解析
As we know, it is common for people to catch a cold in winter and most people believe they know the reason for colds. However, scientists say people have some wrong beliefs about the cause of colds.
Many people think that once you get infected by colds, you will not be easy to be attacked by colds for the rest of your life. That’s not the case. There are about 200 different viruses that cause the common cold. You catch a cold because of one kind of them this time, but you might catch a cold next time because of another.
Others believe that people get sick just because of the cold weather in winter. That is also wrong.
It’s because people tend to stay closer in winter and the cold virus is transmitted from one person to another through handshakes, sneezing, or coughing.
While there is no actual cure for the common cold, scientists say there are still a few things you can do to help you. Some experts say honey and chicken soup are effective against colds. Especially honey. There is increasing evidence that it helps shorten the duration of the common cold sometimes even by two to three days particularly in children. Chicken soup also helps reduce the duration of the cold.
In addition, if you do have a cold and you don’t feel like eating anything, it’s not going to hurt you but you have to drink a lot and you can drink water or tea because doctors say the water cycle in your bodies helps to cure colds. That’s very important. Though there is more than one way to deal with colds, doctors say the best advice is to continue using whatever works best for you.
1.We know from the second paragraph that ______.
A．the common cold is caused by only one virus
B．there are people who never catch a cold
C．colds can be caused by different viruses
D．all people are easily attacked by colds
2. The underlined word “transmitted” in the fourth paragraph means “______”.
A．passed B．changed C．cured D．caused
3.If you have a cold, you can do the following except ______.
A．drinking a lot of water B．drinking chicken soups
C．eating honey D．forcing yourself to eat
4. It can be inferred from the passage that ______.
A．now scientists have found out practical treatment for colds
B．different people may have different ways to fight against colds
C．working in freezing weather is the main reason for colds
D．colds can be passed from animals to human beings
高一英语阅读理解中等难度题查看答案及解析
完形填空（20分）
When people don’t know the language, the most common way is 36communicate with 37 . However, many gestures have different meanings, or no meanings at all. In different parts of the world, in the United States, 38 example 39 your head 40 “Yes.” In some parts of Greece and Turkey, 41 , this motion can mean “”42 “. In Southeast Asia, nodding your head 43 a polite way of 44 “I hear you.”
In ancient Rome, 45 the emperor wanted to spare someone’s life, he would put his 46 up. Today in the United States, when someone put his/ her thumb 47, it means “48 .” However in Sardinia and Greece, the gesture is insulting and 49 not be used there.
In the United States, 50 your clasped hands 51 your head means “I’m the champion.” Or “I’m the winner.” It is the sign fighters make 52 they win a fight. When a leading Russian Statesman made this gesture after a White House meeting, Americans misunderstood and thought he meant he was a winner. In Russia, however, it is a sign of 53 .
In the United States, 54 your hand up with the thumb and index finge in a circle and the 55 three fingers spread out means “Everything is O.K.” And is frequently used by astronauts and politicians. In France and Belgium, it can mean “ You are worth nothing.”
1.A. to B. on C. for D. of
2.A. smiles B. gestures C. waving D. languages
3.A. for B. with C. of D. about
4.A. nodding B. tossing C. nodded D. tossed
5.A. up and down B. to and fro C. back and forth D. neck and neck
6.A. but B. or C. however D. yet
7.A. No B. Yes C. O. K D. Go
8.A. be B. is C. am D. are
9.A. say B. said C. says D. saying
10.A. when B. after C. since D. while
11.A. finger B. thumb C. index D. hand
12.A. down B. above C. up D. below
13.A Nothing B. Everything C. Something D. Anything
14.A. must B. can C. might D. should
15.A. to raise B. raising C. to be raised D. raise
16.A. above B. before C. below D. up
17.A. when B. before C. since D. while
18.A. friends B. friendship C. friendly D. being friend
19.A. hold B. holding C. held D.to be held
20.A. no B. other C. another D. either
高一英语完型填空简单题查看答案及解析
Heart disease is the most common cause of death in the United States. Over a million people each year will have a heart attack and 25% will die before they get to the hospital or in the Emergency Department. _1_ Prevention is the best way so it does not damage your heart and limit your ability to enjoy life. Simple ways might help reduce your risk:
Don’t smoke
This means that you should stop smoking as soon as possible if you already smoke, and if you live with a smoker , you should put limits on the smoker. _2_
Get moving
__3_ Find a form of exercise you enjoy enough to want to do it regularly and stick to it. If you have health issues that limit exercise, see your doctor for suggestions and make sure you begin with a program that will not be too challenging for you to keep with it.
__4__
Make sure you follow a heart prevention diet, even if you don’t have any symptoms (症状) of heart disease. _5_ You should eat a high-fiber, low-fat diet rich in fruits, vegetables and whole grains. Meats should be lean (瘦的)，and fats should be limited to heart healthy fats such as olive oil. Sugars and processed foods should be limited, and fruits and vegetables should make up a large part of your daily meals.
| A．Eat healthy foods |
| B．Manage your weight |
| C．A heart attack is a very frightening event. |
| D．The key is to prevent the disease before it starts |
E. It’s best if you can get in 30 minutes a day of exercise.
F. If you feel any of these heart attack symptoms, do not ignore.
G. If you haven’t started smoking, be sure never to start this habit.
高一英语信息匹配中等难度题查看答案及解析
Heart disease is the most common cause of death in the United States. Over a million people each year will have a heart attack and 25% will die before they get to the hospital or in the Emergency Department.1.Prevention is the best way so it does not damage your heart and limit your ability to enjoy life. Simple ways might help reduce your risk:
Don’t smoke
This means that you should stop smoking as soon as possible if you already smoke, and if you live with a smoker , you should put limits on the smoker.2.
Get moving
3.Find a form of exercise you enjoy enough to want to do it regularly and stick to it. If you have health issues that limit exercise, see your doctor for suggestions and make sure you begin with a program that will not be too challenging for you to keep with it.
4.
Make sure you follow a heart prevention diet, even if you don’t have any symptoms (症状) of heart disease.5.You should eat a high-fiber, low-fat diet rich in fruits, vegetables and whole grains. Meats should be lean (瘦的)，and fats should be limited to heart healthy fats such as olive oil. Sugars and processed foods should be limited, and fruits and vegetables should make up a large part of your daily meals.
A. Eat healthy foods
B. Manage your weight
C. A heart attack is a very frightening event.
D. The key is to prevent the disease before it starts
E. It’s best if you can get in 30 minutes a day of exercise.
F. If you feel any of these heart attack symptoms, do not ignore.
G. If you haven’t started smoking, be sure never to start this habit.
高一英语七选五困难题查看答案及解析
An earthquake is one of the most common natural disasters. It may cause great damage. So it is wise to learn some simple safety tips to protect yourself or your family members.
Fragile items like those made of glass are easily broken and should usually be placed on a lower surface, near the ground instead of placing them in the cupboards higher up. Never place them near your bed, sofas and other furniture where you would be sitting or lying down. When there is a strong movement, these pieces will fall on the floor directly and not on you.
There is a strong chance of short circuits (短路) and fire during an earthquake. Make sure you turn off electrical connections and gas immediately when an earthquake happens.
During an earthquake, lie beneath an object that is not easily damaged. Do not go near objects that could directly fall on you. Never use the elevator to go down. Stay inside until the shaking stops and it is safe to go outside. Research has shown that most injuries happen when people inside buildings try to go out. Use the staircases at all times.
If you are outdoors, do not take shelter under a tree, streetlights, electric poles or tall buildings. If you are driving, stop your car and stay in a safe place. Do not park your car under a tree or any tall object.
If trapped in debris (瓦砾堆), cover your mouth with a handkerchief or clothing. Tap on a pipe or the wall so that rescuers (营救人员) can find you. Use a whistle (哨子) if one is available. Never shout for help. Shouting can cause you to breathe in dangerous amounts of dust. Do not light a match because you may burn yourself. Do not move about or kick up dust.
1.The purpose of the passage is to tell readers .
A.what to do in earthquakes
B.how to prevent earthquakes
C.the damage caused by earthquakes
D.the rescue work after earthquakes
2.The underlined word “Fragile” in Paragraph 2 probably means “ _”.
A.Easily found B.Expensive C.Easily broken D.Heavy
3.During the earthquake, people are advised to .
A.take shelter under a tree
B.drive to a safe place quickly
C.go out of the building at once
D.turn off electricity and gas immediately
高一英语阅读理解简单题查看答案及解析
An earthquake is one of the most common natural disasters． It may cause great damage． So it is wise to learn some simple safety tips to protect yourself or your family members．
Fragile items， like those made of glass should usually be placed on a lower surface， near the ground instead of placing them on cupboards higher up． Never place them near your bed， sofas and other furniture where you would be sitting or lying down． When there is a strong movement，these pieces will fall on the floor directly and not on you．
There is a strong chance of short circuits （短路） and fire breakouts during an earthquake． Make sure you turn off electrical connections and gas immediately when an earthquake happens．
During an earthquake， lie beneath an object that is not easily damaged． Do not go near objects that could directly fall on you． Never use the elevator to go down． Stay inside until the shaking stops and it is safe to go outside． Research has shown that most injuries happen when people inside buildings try to go out． Use the staircases at all times．
If you are outdoors， do not take shelter under a tree， streetlights， electric poles or tall buildings． If you are driving， stop your car and stay in a safe place． Do not park your car under a tree or any tall object．
If trapped in debris （瓦砾堆）， cover your mouth with a handkerchief or clothing． Tap on a pipe or wall so rescuers can find you． Use a whistle （哨子） if one is available． Never shout for help． Shouting can cause you to breathe in dangerous amounts of dust． Do not light a match because you may burn yourself． Do not move about or kick up dust．
1.The purpose of the passage is to tell readers ．
A.the damage caused by earthquakes
B.the rescue work after earthquakes
C.what to do about earthquakes
D.how to prevent earthquakes
2.The underlined word "Fragile" in Paragraph 2 probably means ．
A.easily broken
B.easily found
C.expensive
D.heavy
3.During the earthquake， people are advised to ．
A.go out the building at once
B.turn off power and gas immediately
C.take shelter under a tree
D.drive to a safe place
4.What should people NOT do when they are trapped in debris？
A.Cover their mouth with a handkerchief．
B.Tap on a pipe or wall for help．
C.Use a whistle for help．
D.Light a fire for help．
5.If you are driving， what should you do in the earthquake？
A.take shelter under a tree
B.stop your car and stay in a safe place
C.park your car under a tree
D.park your car under a tall object
高一英语阅读理解中等难度题查看答案及解析
An earthquake is one of the most common natural disasters. It may cause great damage. So it is wise to learn some simple safety tips to protect yourself or your family members.
Fragile items like those made of glass are easily broken and should usually be placed on a lower surface, near the ground instead of placing them in the cupboards higher up. Never place them near your bed, sofas and other furniture where you would be sitting or lying down. When there is a strong movement, these pieces will fall on the floor directly and not on you.
There is a strong chance of short circuits (短路) and fire during an earthquake. Make sure you turn off electrical connections and gas immediately when an earthquake happens.
During an earthquake, lie beneath an object that is not easily damaged. Do not go near objects that could directly fall on you. Never use the elevator to go down. Stay inside until the shaking stops and it is safe to go outside. Research has shown that most injuries happen when people inside buildings try to go out. Use the staircases at all times.
If you are outdoors, do not take shelter under a tree, streetlights, electric poles or tall buildings. If you are driving, stop your car and stay in a safe place. Do not park your car under a tree or any tall object.
If trapped in debris (瓦砾堆), cover your mouth with a handkerchief or clothing. Tap on a pipe or the wall so that rescuers can find you. Use a whistle (哨子) if one is able to get. Never shout for help. Shouting can cause you to breathe in dangerous amounts of dust. Do not light a match(火柴) because you may burn yourself. Do not move about or kick up dust.
1.The purpose of the passage is to tell readers__________.
A.the damage caused by earthquakes B.the rescue work after earthquakes
C.how to prevent earthquakes D.what to do about earthquakes
2.The underlined word “Fragile” in Paragraph 2 probably means “__________”．
A.Easily found B.Easily broken
C.Expensive D.Heavy
3.During the earthquake, people are advised to __________.
A.go out of the building at once B.drive to a safe place quickly
C.take shelter under a tree D.turn off electricity and gas immediately
4.When trapped in debris, you’d better not ___________.
A.shout for help aloud.
B.cover your mouth with a handkerchief or clothing.
C.tap on a pipe or the wall hard so that rescuers can find you.
D.use a whistle if possible.
高一英语阅读理解中等难度题查看答案及解析
An earthquake is one of the most common natural disasters. It may cause great damage. So it is wise to learn some simple safety tips to protect yourself or your family members.
Fragile items, like those made of glass are easily broken and should usually be placed on a lower surface, near the ground instead of placing them on cupboards higher up. Never place them near your bed, sofas and other furniture where you would be sitting or lying down. When there is a strong movement, these pieces will fall on the floor directly and not on you.
There is a strong chance of short circuits （短路） and fire breakouts during an earthquake. Make sure you turn off electrical connections and gas immediately when an earthquake happens.
During an earthquake, lie beneath an object that is not easily damaged. Do not go near objects that could directly fall on you. Never use the elevator to go down. Stay inside until the shaking stops and it is safe to go outside. Research has shown that most injuries happen when people inside buildings try to go out. Use the staircases at all times.
If you are outdoors, do not take shelter under a tree, streetlights, electric poles or tall buildings. If you are driving, stop your car and stay in a safe place. Do not park your car under a tree or any tall object.
If trapped in debris (瓦砾堆), cover your mouth with a handkerchief or clothing. Tap on a pipe or wall so rescuers can find you. Use a whistle (哨子) if one is available. Never shout for help. Shouting can cause you to breathe in dangerous amounts of dust. Do not light a match because you may burn yourself. Do not move about or kick up dust.
1.The purpose of the passage is to tell readers _____.
| A．the damage caused by earthquakes |
| B．the rescue work after earthquakes |
| C．what to do about earthquakes |
| D．how to prevent earthquakes |
2. The underlined word “Fragile” in Paragraph 2 probably means _____.
| A．easily broken | B．easily found | C．expensive | D．heavy |
3.To reduce the injury from the earthquake, items made of glass should be put _____.
| A．on cupboards |
| B．in the bedroom |
| C．on a lower surface |
| D．where children can’t reach them |
4.During the earthquake, people are advised to _____.
| A．go out the building at once |
| B．turn off electricity and gas immediately |
| C．take shelter under a tree |
| D．drive to a safe place quickly |
5.What should people NOT do when they are trapped in debris?
| A．Cover their mouth with a handkerchief. |
| B．Tap on a pipe or wall for help. |
| C．Use a whistle for help. |
| D．Light a match for help. |
高一英语阅读理解中等难度题查看答案及解析