Many people believe the glare from snow causes snowblindness. Yet, dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snowblindness, when exposed to several hours of “snow light”. The United States Army has now determined that glare from snow does not cause snowblindness in troops in a snow-covered country. A man's eyes frequently find nothing to focus on in a broad expanse of barren snow-covered terrain(地域). So his long look continually moves and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and eyeballs become sore and the eye muscles ache. Nature offers this discomfort by producing more and more liquid which covers the eyeball. The liquid covers the eyeball in increasing quantity until vision became not clear, and then is not easily seen and the result is total, even though not very long, snowblindness.
Experiments led the Army to a simple method of solving this problem. Scouts, ahead of a main body of troops, are trained to shake snow from evergreen bushes creating a dotted line as they cross completely snow-covered landscape. Even the scouts themselves throw lightweight, dark colored objects ahead on which they too can focus. The men following can then see something. Their eyes focus on a bush and have something to see. By focusing their attention on one object at a time, the men can cross the snow without becoming hopelessly snowblind or lost. In this way the problem of crossing a solid white terrain is solved.
1. The first paragraph is mainly concerned with ________.
A. need for dark glasses
B the whiteness from snow
C. headaches, watering eyes and snowblindness
D. snow glare and snowblindness
2. According to the author, recent work on snowblindness shows that it is caused by ________.
A. exposure to bright light
B. failure to focus on an object
C. a loss of vision which doesn't last long
D. focusing on dark colored objects for a very long time
3. Suppose you walk across a completely snow-covered area, what should you do to solve the problem of snowblindness?
A. By wearing dark sun glasses.
B. By throwing an extra pair of black shoes ahead.
C. By asking the Army for help.
D. By walking backwards.
4. A suitable title for this passage would be ________.
A. Snowblindness and How to avoid it B. Soldiers in Snow
C. Nature's Cure for Snowblindness D. Snow Vision
高二英语阅读理解简单题
Many people believe the glare from snow causes snowblindness. Yet, dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snowblindness, when exposed to several hours of “snow light”. The United States Army has now determined that glare from snow does not cause snowblindness in troops in a snow-covered country. A man's eyes frequently find nothing to focus on in a broad expanse of barren snow-covered terrain(地域). So his long look continually moves and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and eyeballs become sore and the eye muscles ache. Nature offers this discomfort by producing more and more liquid which covers the eyeball. The liquid covers the eyeball in increasing quantity until vision became not clear, and then is not easily seen and the result is total, even though not very long, snowblindness.
Experiments led the Army to a simple method of solving this problem. Scouts, ahead of a main body of troops, are trained to shake snow from evergreen bushes creating a dotted line as they cross completely snow-covered landscape. Even the scouts themselves throw lightweight, dark colored objects ahead on which they too can focus. The men following can then see something. Their eyes focus on a bush and have something to see. By focusing their attention on one object at a time, the men can cross the snow without becoming hopelessly snowblind or lost. In this way the problem of crossing a solid white terrain is solved.
1. The first paragraph is mainly concerned with ________.
A. need for dark glasses
B the whiteness from snow
C. headaches, watering eyes and snowblindness
D. snow glare and snowblindness
2. According to the author, recent work on snowblindness shows that it is caused by ________.
A. exposure to bright light
B. failure to focus on an object
C. a loss of vision which doesn't last long
D. focusing on dark colored objects for a very long time
3. Suppose you walk across a completely snow-covered area, what should you do to solve the problem of snowblindness?
A. By wearing dark sun glasses.
B. By throwing an extra pair of black shoes ahead.
C. By asking the Army for help.
D. By walking backwards.
4. A suitable title for this passage would be ________.
A. Snowblindness and How to avoid it B. Soldiers in Snow
C. Nature's Cure for Snowblindness D. Snow Vision
高二英语阅读理解简单题查看答案及解析
Does stress cause gray hair? Many people believe that tension and stress can cause your hair to lose its color.In fact,it is an old wives tale that being upset all the time can result in premature graying.Here is a closer look at this situation and why some believe that this old wives tale could be true.
As one ages,the hairs on the head also age.In fact,just about everything on the human body begins to show signs of wear and tear after a while.The joints wear and become stiff and skin wears and becomes wrinkled.Hairs on the head grow and eventually die.They are replaced,but in the process something else happens.
When new hairs are replaced,the color or pigment(色素)is also added to them.However,as one ages,this pigment becomes less and less available.At first,hairs will have a limited amount of pigment and they will appear to be grayish in color.In time,they will lose all of their pigment and will be white.Many things are known to cause graying.and genetics is a very powerful factor.If one of your parents turns gray at an early age,there is a good chance that you will too.Some people begin the graying process in high school,while others may be over the age of forty.
Constant worry and tension can have many harmful effects on the human body.It is a known fact that stressful times can cause one to suffer hair loss.It would make sense that if it can cause these problems,perhaps it also may contribute to graying.However,there is no sound evidence to support this.
On the other hand,many medical professionals believe that there may be a link:between graying and a constant state of anxiety or tension.Does stress cause gray hair? There is no scientific evidence to support the theory,but it is best to avoid stressful situations.
1.The underlined phrase in the first paragraph most probably means .
A.clever remarks B.silly remarks
C.exciting remarks D.disappointed remarks
2.The second paragraph mainly tells us .
A.every part of body is replaced with age
B.hairs will grow weak but not die
C.skin becomes wrinkled with age
D.every part of body ages with age
3.From the passage we can infer that .
A.stress causing gray hair is still in question
B.gray hair has nothing to do with tension.
C.stressful situations can be of benefit.
D.sound evidence has been found.
4.What might play the most important role in the graying process?
A.Genetics and the amount of sleeping time
B.The amount of food people eat and living environment
C.The amount of pigment and genetics
D.Genetics and the amount of water people drink
高二英语阅读理解中等难度题查看答案及解析
Many people consider it _________, from which a lot of children benefit.
A. a worth doing cause B. a cause worth to do
C. a worthwhile cause D. a worthless cause
高二英语单项填空简单题查看答案及解析
In the United States, 30 percent of the people have a “weight problem”. To many people the cause is obvious (明显的): they eat too much. But scientific evidence (证据) does little to support this idea. Going back to America of 1910, we find that people were thinner than today, yet they ate more food. In those days people worked harder physically, walked more, used machines much less, and didn’t watch television.
Several modern studies, moreover, have shown that fatter people don’t eat more on average than thinner people. A 1979 study of 3,545 London office workers showed that fat people eat less than slim (苗条的) people.
Studies also show that slim people are more active than fat people. A study by a research group at Stanford University found the following interesting facts:
The more the man ran, the greater loss of the body fat.
The more they ran, the greater increase in food intake.
Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.
1.Nowadays many Americans have the problem that ______.
A. they are too slim B. they work too hard
C. they are too fat D. they lose too much body fat
2.According to the passage, how many people in 900 Americans have a “weight problem”?
A. 150. B. 300. C. 600. D. 270.
3.Is there any scientific evidence to support the idea that eating too much is the cause of a “weight problem”?
A. Yes, there is plenty of evidence.
B. Of course, there is some evidence to support this.
C. There is hardly any scientific evidence to support this.
D. We are not sure.
4.The Americans in 1910 ________.
A. ate more food and had more physical activities
B. ate less food but had more physical activities
C. ate less food and had less physical activities
D. had more problems
高二英语阅读理解中等难度题查看答案及解析
In the United States, 30 percent of the people have a “weight problem”. To many people, the cause is obvious: they eat too much. But scientific evidence (证据) does little to support this idea. Going back to America of 1910, we find that people were thinner than today, yet they ate more food. In those days people worked harder physically, walked more, used machines much less, and didn’t watch television.
Several modern studies, moreover, have shown that fatter people don’t eat more on average than thinner people. A 1979 study of 3,545 London office workers showed that fat people eat less than slim (苗条的) people.
Studies also show that slim people are more active than fat people. A study by a research group at Stanford University found the following interesting facts:
The more the man ran, the greater loss of the body fat.
The more they ran, the greater increase in food intake.
Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.
1.Nowadays many Americans have the problem that ______.
A.they lose too much body fat B.they work too hard
C.they are too fat D.they are too slim
2.According to the passage, how many people in 900 Americans have a “weight problem”?
A.150. B.300. C.600. D. 270.
3.Is there any scientific evidence to support the idea that eating too much is the cause of a “weight problem”?
A.We are not sure.
B.Of course, there is some evidence to support this.
C.There is hardly any scientific evidence to support this.
D.Yes, there is plenty of evidence.
4.The Americans in 1910 ________.
A.had more problems
B.ate less food but had more physical activities
C.ate less food and had less physical activities
D.ate more food and had more physical activies
高二英语阅读理解中等难度题查看答案及解析
A serious earthquake struck the village, __________ many people homeless.
A.to cause | B.caused | C.causing | D.cause |
高二英语单项填空困难题查看答案及解析
Shyness is the cause of much unhappiness for a great many people. Shy people are anxious and self - conscious; that is, they are concerned with their own appearance and actions too much. Negative thoughts are constantly occurring in their minds: What kind of impression am I making? Do they like me? Do I sound stupid? Am I wearing unattractive clothes?
It is obvious that such uncomfortable feelings must affect people unfavorably. A person’s self- concept is reflected in the way he or she behaves and the way a person behaves affects other people’s reactions. In general, the way people think about themselves has a deep effect on all areas of their lives.
Shy people, who have low respect, are likely to be passive and easily influenced by others. They need faith that they are doing “the right thing”. Shy people are very sensitive to criticism. It makes them feel inferior (自卑).They also find it difficult to be pleased by praises because they believe they are unworthy of praise. A shy person may respond to a praise with a statement like this one: “You’re just saying that to make me feel good, I know it’s not true. ” It is clear that, while self- awareness is a healthy quality, overdoing it is harmful.
Can shyness be completely got rid of, or at least reduced? Fortunately, people can overcome shyness with determination since shyness goes hand in hand with lack of self respect. It is important for people to accept their weakness as well as their strengths. Each one of us has his or her own characteristics. We are interested in our own personal ways. The better we understand ourselves, the easier it becomes to live up to our chances for a rich and successful life.
1.The first paragraph is mainly about ______.
A. the cause of shyness
B. the effect of shyness on people
C. the feelings of shy people
D. the questions in the minds of shy people
2.According to the writer, self-awareness is ______.
A. harmful to people
B. a weak point of shy people
C. the cause of unhappiness
D. a healthy quality
3.What is the shy people’s reaction to praise?
A. They are pleased by it.
B. They feel it is not true.
C. They are very sensitive to it.
D. They feel they are worthy of it.
4.We can learn from the passage that shyness can ______.
A. be overcome with determination
B. help us to live up to our full development
C. enable us to understand ourselves better
D. have nothing to do with lack of self respect
高二英语阅读理解中等难度题查看答案及解析
Shyness is the cause of much unhappiness for a great many people. Shy people are anxious and self-conscious; that is, they are concerned with their own appearance and actions too much. Negative thoughts are constantly occurring in their minds: What kind of impression am I making? Do they like me? Do I sound stupid? Am I wearing unattractive clothes?
It is obvious that such uncomfortable feelings must affect people unfavorably. A person's self-concept is reflected in the way he or she behaves and the way a person behaves affects other people's reactions. In general, the way people think about themselves has a deep effect on all areas of their lives.
Shy people, who have low respect, are likely to be passive and easily influenced by others. They need faith that they are doing "the right thing". Shy people are very sensitive to criticism. It makes them feel inferior(自卑).They also find it difficult to be pleased by praises because they believe they are unworthy of praise. A shy person may respond to a praise with a statement like this one: "You're just saying that to make me feel good, I know it's not true.” It is clear that, while self-awareness is a healthy quality, overdoing it is harmful.
Can shyness be completely got rid of, or at least reduced? Fortunately, people can overcome shyness with determination since shyness goes hand in hand with lack of self respect. It is important for people to accept their weakness as well as their strengths. Each one of us has his or her own characteristics. We are interested in our own personal ways. The better we understand ourselves, the easier it becomes to live up to our chances for a rich and successful life.
1.The first paragraph is mainly about______.
A. the cause of shyness B. the effect of shyness on people
C. the feelings of shy people D. the questions in the minds of shy people
2.According to the writer, self-awareness is______.
A. harmful to people B. a weak point of shy people
C. the cause of unhappiness D. a good characteristic
3.What is the shy people's reaction to praise?
A. They are pleased by it. B. They feel it is not true.
C. They are very sensitive to it. D. They feel they are worthy of it.
4.We can learn from the passage that shyness can ______.
A. block our chances for a successful life
B. help us to live up to our full development
C. enable us to understand ourselves better
D. have nothing to do with lack of self respect
高二英语阅读理解中等难度题查看答案及解析
Shyness is the cause of much unhappiness for a great many people. Shy people are anxious and self-conscious; that is, they are concerned about their own appearance and actions too much. Negative thoughts are constantly occurring in their minds: What kind of impression am I making? Do they like me? Do I sound stupid? Am I wearing unattractive clothes?
It is obvious that such uncomfortable feelings must affect people unfavorably. A person's self-concept is reflected in the way he or she behaves and the way a person behaves affects other people's reactions. In general, the way people think about themselves has a deep effect on all areas of their lives.
Shy people, who have low respect, are likely to be passive and easily influenced by others. They need faith that they are doing "the right thing". Shy people are very sensitive to criticism. It makes them feel inferior(自卑). They also find it difficult to be pleased by praises because they believe they are unworthy of praise. A shy person may respond to a praise with a statement like this one: "You're just saying that to make me feel good, I know it's not true.” It is clear that, while self-awareness is a healthy quality, overdoing it is harmful.
Can shyness be completely got rid of, or at least reduced? Fortunately, people can overcome shyness with determination since shyness goes hand in hand with lack of self respect. It is important for people to accept their weaknesses as well as their strengths. Each one of us has his or her own characteristics. We are interested in our own personal ways. The better we understand ourselves, the easier it becomes to live up to our chances for a rich and successful life.
1.The first paragraph is mainly about______.
A. the cause of shyness
B. the effect of shyness on people
C. the feelings of shy people
D. the questions in the minds of shy people
2.According to the writer, self-awareness is______.
A. harmful to people
B. a weak point of people
C. the cause of unhappiness
D. a good characteristic
3.What is the shy people's reaction to praise?
A. They are pleased by it.
B. They feel it is not true.
C. They are very sensitive to it.
D. They feel they are worthy of it.
高二英语阅读理解中等难度题查看答案及解析
Shyness is the cause of much unhappiness for a great many people.Shy people are anxious and self-conscious; that is, they are concerned with their own appearance and actions too much.Negative thoughts are constantly occurring in their minds: What kind of impression am I making? Do they like me? Do I sound stupid? Am I wearing unattractive clothes?
It is obvious that such uncomfortable feelings must affect people unfavorably.A person's self-concept is reflected in the way he or she behaves and the way a person behaves affects other people's reactions.In general, the way people think about themselves has a deep effect on all areas of their lives.
Shy people, who have low respect, are likely to be passive and easily influenced by others.They need faith that they are doing "the right thing".Shy people are very sensitive to criticism.It makes them feel inferior(自卑).They also find it difficult to be pleased by praises because they believe they are unworthy of praise.A shy person may respond to a praise with a statement like this one: "You're just saying that to make me feel good, I know it's not true.” It is clear that, while self-awareness is a healthy quality, overdoing it is harmful.
Can shyness be completely got rid of, or at least reduced? Fortunately, people can overcome shyness with determination since shyness goes hand in hand with lack of self respect.It is important for people to accept their weakness as well as their strengths.Each one of us has his or her own characteristics.We are interested in our own personal ways.The better we understand ourselves, the easier it becomes to live up to our chances for a rich and successful life.
1.The first paragraph is mainly about______.
A.the cause of shyness B.the effect of shyness on people
C.the feelings of shy people D.the questions in the minds of shy people
2.According to the writer, self-awareness is______.
A.harmful to people B.a weak point of shy people
C.the cause of unhappiness D.a good characteristic
3.What is the shy people's reaction to praise?
A.They are pleased by it.
B.They feel it is not true.
C.They are very sensitive to it.
D.They feel they are worthy of it.
4.We can learn from the passage that shyness can ______.
A.block our chances for a successful life
B.help us to live up to our full development
C.enable us to understand ourselves better
D.have nothing to do with lack of self respect
高二英语阅读理解中等难度题查看答案及解析