The television camera is rather like the human eye. Both the eye and the camera have a lens(镜头),and both produce a picture on a screen. In each case the picture is made up of millions of spots of light.
Let us see how the eye works. When we look at an object a person, a house, or whatever it may be .we do not see all the details of the object in one piece. We imagine what we do, but this is not the case. In fact, the eye builds up the picture for us in our brain, which controls our sight, in millions of separate parts, and, although we do not realize it, all these details are seen separately.
This is what happens when we look at something. Beams of light of different degrees of intensity(强度), reflected from all parts of the object, strike the lens of the eye. The lens then gathers together the spots of light from these beams and focuses them on to a light sensitive plate the retina(视网膜) at the back of the eyeball. In this way an image of the object is produced on the retina in the form of a pattern of lights.
The retina contains millions of minute light sensitive elements, each of which is separately connected to the brain by a tiny fibre in the optic(视力的)nerve. These nerve fibres, working independently, pick out minute details from the image on the retina and turn the small spots of light into nerve impulses(冲击)of different strengths. They then transmit these impulses to the brain. They do this all at the same time.
All the details of the image are fed to the brain, and, as we have taught our brain to add them together correctly, we see a clear picture of the object as a whole.Television, which means vision at a distance, operates on a similar principle. A television picture is built up in thousands of separate parts.
Beams of light reflected from the subject being televised strike the lens of the television camera, which corresponds to(相当于)the lens of the eye. The camera lens gathers together the spot of light from these beams and focuses an image of the subject on to a plate, the surface of which is coated with millions of photo electric elements sensitive to light.
1.In the first paragraph, we are told that the television camera is like the human eye in________
A. one way B. two waysC. three ways D. a large number of ways
2.Which of the following is NOT true according to the writer?
A. The eye produces a picture on a screen.
B. Our sight is controlled by our brain.
C. We see all the details of an object in one piece.
D. The picture is made up of millions of spots of light.
3.All the rays of light reflected from objects are______________
A. of the same intensity B. not at all intense
C. to some degree intense D. of varying intensities
4.A camera lens focuses an image on to_____________.
A. the subject B. a surface made up of millions of light sensitive elementsC. a television set D. millions of photo electric beams of light
高三英语阅读理解中等难度题
The television camera is rather like the human eye. Both the eye and the camera have a lens(镜头),and both produce a picture on a screen. In each case the picture is made up of millions of spots of light.
Let us see how the eye works. When we look at an object a person, a house, or whatever it may be .we do not see all the details of the object in one piece. We imagine what we do, but this is not the case. In fact, the eye builds up the picture for us in our brain, which controls our sight, in millions of separate parts, and, although we do not realize it, all these details are seen separately.
This is what happens when we look at something. Beams of light of different degrees of intensity(强度), reflected from all parts of the object, strike the lens of the eye. The lens then gathers together the spots of light from these beams and focuses them on to a light sensitive plate the retina(视网膜) at the back of the eyeball. In this way an image of the object is produced on the retina in the form of a pattern of lights.
The retina contains millions of minute light sensitive elements, each of which is separately connected to the brain by a tiny fibre in the optic(视力的)nerve. These nerve fibres, working independently, pick out minute details from the image on the retina and turn the small spots of light into nerve impulses(冲击)of different strengths. They then transmit these impulses to the brain. They do this all at the same time.
All the details of the image are fed to the brain, and, as we have taught our brain to add them together correctly, we see a clear picture of the object as a whole.Television, which means vision at a distance, operates on a similar principle. A television picture is built up in thousands of separate parts.
Beams of light reflected from the subject being televised strike the lens of the television camera, which corresponds to(相当于)the lens of the eye. The camera lens gathers together the spot of light from these beams and focuses an image of the subject on to a plate, the surface of which is coated with millions of photo electric elements sensitive to light.
1.In the first paragraph, we are told that the television camera is like the human eye in________
A. one way B. two waysC. three ways D. a large number of ways
2.Which of the following is NOT true according to the writer?
A. The eye produces a picture on a screen.
B. Our sight is controlled by our brain.
C. We see all the details of an object in one piece.
D. The picture is made up of millions of spots of light.
3.All the rays of light reflected from objects are______________
A. of the same intensity B. not at all intense
C. to some degree intense D. of varying intensities
4.A camera lens focuses an image on to_____________.
A. the subject B. a surface made up of millions of light sensitive elementsC. a television set D. millions of photo electric beams of light
高三英语阅读理解中等难度题查看答案及解析
Scientists have found that human eyes are more likely to be damaged by UV rays while skiing in the snow-covered areas than sitting on the beach, according to a report by the UK newspaper.
The researchers at Kanazawa Medical University, Japan and American company Johnson conducted the study together. They looked at the effects of light reflection on newly fallen snow on a ski trail in Ishikawa District, northern Japan. They compared the results with the levels of UV rays on a sand beach in southern Japan's Okinawa District.
They found that on the beach, eyes are exposed to a daily 260 kilojoules (千焦耳) of UV a square meter compared to 658 kilojoules in snow-covered areas.
The findings are supported by the Japan Meteorological (气象的) Agency. According to the agency, the reflection rate of UV light on beaches is often between 10 and 25 percent, compared to 80 percent in the new snow areas. The amount of light increased 4 percent with a 300-meter rise in height.
Most of us know that UV rays can harm the skin. That's why we wear sunscreen on our skin before we get out in the sun. But many of us may not realize that UV rays are also harmful to the eyes.
If your eyes are exposed to large amounts of UV radiation over a short period of time, you may experience a kind of sunburn of the eye, which is harmful. Your eyes will become red and feel a strange feeling. They may be sensitive to light. Fortunately, this is usually temporary and seldom causes permanent damage to the eyes.
Long-term exposure to UV radiation, however, can be more serious. Scientific studies and researches have shown that exposure to small amounts of UV radiation over a period of many years increases the chance of eye damage, which could lead to total blindness.
1.You would most likely find the article in ________.
A. a doctor’s diary B. a travel journal
C. a medical magazine D. a physics textbook
2.Which of the following statements is TRUE according to the passage?
A. Too much eye exposure to UV rays may cause total blindness.
B. Short-time exposure of the eyes to UV rays doesn't harm them at all.
C. Most people know that UV rays harm the eyes as well as the skin.
D. The study was conducted by researchers from Japan, the USA and the UK.
3.Human eyes are more likely to be damaged by UV rays while skiing in the snow-covered areas than sitting on the beach because ________.
A. snow produces more UV light than water
B. people don’t wear sunscreen while skiing as they do while sitting on the beach
C. the reflection rate of UV light in snow-covered areas is much higher than that on the beach
D. human eyes are exposed longer to UV light in the snow- covered areas than on the beach
4.What will the passage most probably talk about next?
A. Never ski on newly fallen snow in Japan.
B. Go to hospital to have your eyes examined.
C. Wearing a hat can provide protection while skiing in new snow areas.
D. Take some measures to protect your eyes while skiing in new snow areas.
高三英语阅读理解困难题查看答案及解析
The dress is really fashionable and eye-catching, but it is ______ too big for me.
A.fairly | B.rather | C.quite | D.pretty |
高三英语单项填空简单题查看答案及解析
Sometimes willpower is a lot like the television remote control--hard to find just when you want it most. Whether you’re trying to lose weight, stop smoking, get to the gym regularly, developing your sense of willpower is an important part of changing any behavior.1.But there are ways to increase your willpower.
Don’t try to change your economic situation, win a promotion and lose weight all on the same morning. Establish one clear, specific goal and make a realistic plan for achieving it. Extra willpower sometimes requires extra energy, so don’t stretch yourself too thin.2.Whatever your goal is, don’t expect to achieve it overnight.3.If you are trying to kick a caffeine habit, start by replacing your morning cup of coffee with a glass of water, instead of vowing never to drink coffee again. Congratulate yourself on the small achievements that will pave the way toward a larger one. These successes help your willpower grow.
4.Ask friends, family or colleagues for assistance and tell them exactly how they can help. If your credit card bills have increased sharply, for instance, let friends know that you are cutting back on expenses. Suggest having a common dinner instead of meeting at an expensive restaurant. Find a support group or organization related to your goal and attend their meetings. You can get valuable advice, understanding and information.
If possible, change your environment to encourage positive behavior. Want to get in shape? Keep an extra set of workout clothes in your office as a reminder to stop by the gym on the way home. Quitting smoking?5.
A. Change your environment to change your life
B. Real success takes time
C. Avoid bars or restaurants where you might be attracted to light up
D. Changing your behavior requires more than willpower
E. Improve your willpower by a support network
F. Breaking a bad habit or forming a new and healthy one can be difficult
G. Focus on one goal at a time
高三英语信息匹配中等难度题查看答案及解析
Sometimes willpower is a lot like the television remote control — hard to find just when you want it most. Whether you’re trying to lose weight, stop smoking, get to the gym regularly,developing your sense of willpower is an important part of changing any behavior. ___1.__. But there are ways to increase your willpower.
Don’t try to change your economic situation, win a promotion and lose weight all on the same morning. Establish one clear, specific goal and make a realistic plan for achieving it. Extra willpower sometimes requires extra energy, so don’t stretch yourself too thin. __2.__.
Whatever your goal is, don’t expect to achieve it overnight. __3.__ . If you are trying to kick a caffeine habit, start by replacing your morning cup of coffee with a glass of water, instead of vowing never to drink coffee again. Congratulate yourself on the small achievements that will pave the way toward a larger one. These successes help your willpower grow.
__4.__. Ask friends, family or colleagues for assistance and tell them exactly how they can help. If your credit card bills have increased sharply, for instance, let friends know that you are cutting back on expenses. Suggest having a common dinner instead of meeting at an expensive restaurant. Find a support group or organization related to your goal and attend their meetings. You can get valuable advice, understanding and information.
If possible, change your environment to encourage positive behavior. Want to get in shape? Keep an extra set of workout clothes in your office as a reminder to stop by the gym on the way home. Quitting smoking? __5.__.
A.Change your environment to change your life
B.Real success takes time.
C.Avoid bars or restaurants where you might be attracted to light up.
D.Changing your behavior requires more than willpower.
E. Improve your willpower by a support network.
F. Breaking a bad habit or forming a new and healthy one can be difficult.
G. Focus on one goal at a time.
高三英语阅读理解中等难度题查看答案及解析
Sometimes willpower is a lot like the television remote control hard to find just when you want it most. 1. But there are ways to increase your will power.
Don’t try to change your economic situation, win a promotion and lose weight all on the same morning. Set one clear, specific goal and make a realistic plan to achieve it. Extra willpower sometimes requires extra energy, so don’t spread yourself too thin. 2. .
Whatever your goal is, don’t expect to achieve it overnight. 3. If you are trying to kick a coffee habit, start by replacing your morning cup of coffee with a glass of water, instead of promising never to drink coffee again. Congratulate yourself on the small achievements. These successes help your willpower grow.
4. Ask friends, family or colleagues for assistance and tell them exactly how they can help. If your credit card bills have risen, for instance, let friends know that you are cutting back on expenses. Suggest having a common dinner instead of meeting at an expensive restaurant. Find support group or organization related to your goal and attend their meetings. You can get valuable advice, understanding and information.
If possible, change your environment to encourage positive behavior. Want to get in shape? Keep an set of workout clothes in your office as a reminder to stop by the gym on the way home. Quitting smoking? 5.
A. Real success takes time.
B. Focus on one goal at a time.
C. Change your environment to change your life.
D. Improve your willpower by a support network.
E. Changing your behavior requires more than willpower.
F. Avoid bars or restaurants where you might be attracted to light up.
G. Breaking a bad habit or forming a new and healthy one can be difficult.
高三英语信息匹配中等难度题查看答案及解析
Sometimes willpower is a lot like the television remote control hard to find just when you want it most.1.But there are ways to increase your will power.
Don’t try to change your economic situation, win a promotion and lose weight all on the same morning. Set one clear, specific goal and make a realistic plan to achieve it. Extra willpower sometimes requires extra energy, so don’t spread yourself too thin.2.
Whatever your goal is, don’t expect to achieve it overnight. 3.If you are trying to kick a coffee habit, start by replacing your morning cup of coffee with a glass of water, instead of promising never to drink coffee again. Congratulate yourself on the small achievements. These successes help your willpower grow.
4.Ask friends, family or colleagues for assistance and tell them exactly how they can help. If your credit card bills have risen, for instance, let friends know that you are cutting back on expenses. Suggest having a common dinner instead of meeting at an expensive restaurant. Find support group or organization related to your goal and attend their meetings. You can get valuable advice, understanding and information.
If possible, change your environment to encourage positive behavior. Want to get in shape? Keep an set of workout clothes in your office as a reminder to stop by the gym on the way home. Quitting smoking? 5.
A. Real success takes time.
B. Focus on one goal at a time.
C. Change your environment to change your life.
D. Improve your willpower by a support network.
E. Changing your behavior requires more than willpower.
F. Avoid bars or restaurants where you might be attracted to light up.
G. Breaking a bad habit or forming a new and healthy one can be difficult.
高三英语其他题中等难度题查看答案及解析
Sometimes willpower is a lot like the television remote control—hard to find just when you want it most.1.But there are ways to increase your willpower.
* Don't try to change your economic situation, win a promotion and lose weight all on the same morning. Set one clear, specific goal and make a realistic plan to achieve it.Extra willpower sometimes requires extra energy, so don't spread yourself too thin,2.
* Whatever your goal is, don't expect to achieve it overnight,3.If you are trying to kick a coffee habit, start by replacing your morning cup of coffee with a glass of water, instead of promising never to drink coffee again. Congratulate yourself on the small achievements.These success help your willpower grow.
*4.Ask friends, family or colleagues for assistance and tell them exactly how they can help. If your credit card bills have risen, for instance, let friends know that you are cutting back on expenses. Suggest having a common dinner instead of meeting at an expensive restaurant. Find a support group or organization related to your goal and attend their meetings. You can get valuable advice, understanding and information.
* If possible, change your environment to encourage positive behavior. Want to get in shape? Keep an extra set of workout clothes in your office as a reminder to stop by the gym on the way home. Quitting smoking?5.
A.Real success takes time.
B.Focus on one goal at a time.
C.Change your environment to change your life.
D.Improve your willpower by a support network.
E. Changing your behavior requires more than willpower.
F. Avoid bars or restaurants where you might be attracted to light up.
G. Breaking a bad habit or forming a new and healthy one can be difficult.
高三英语信息匹配中等难度题查看答案及解析
七选五:共5题 每题2分 共10分
Sometimes willpower is a lot like the television remote control hard to find just when you want it most. 1. But there are ways to increase your will power.
Don’t try to change your economic situation, win a promotion and lose weight all on the same morning. Set one clear, specific goal and make a realistic plan to achieve it. Extra willpower sometimes requires extra energy, so don’t spread yourself too thin. 2.
Whatever your goal is, don’t expect to achieve it overnight. 3. If you are trying to kick a coffee habit, start by replacing your morning cup of coffee with a glass of water, instead of promising never to drink coffee again. Congratulate yourself on the small achievements. These successes help your willpower grow.
4. Ask friends, family or colleagues for assistance and tell them exactly how they can help. If your credit card bills have risen, for instance, let friends know that you are cutting back on expenses. Suggest having a common dinner instead of meeting at an expensive restaurant. Find support group or organization related to your goal and attend their meetings. You can get valuable advice, understanding and information.
If possible, change your environment to encourage positive behavior. Want to get in shape? Keep an set of workout clothes in your office as a reminder to stop by the gym on the way home. Quitting smoking? 5.
A. Real success takes time.
B. Focus on one goal at a time.
C. Change your environment to change your life.
D. Improve your willpower by a support network.
E. Changing your behavior requires more than willpower.
F. Avoid bars or restaurants where you might be attracted to light up.
G. Breaking a bad habit or forming a new and healthy one can be difficult.
高三英语其他题中等难度题查看答案及解析
Is language, like food, a basic human need? Judging from the extreme experiment of Frederick in the 13th century, it may be. Hoping to discover what language a child would speak if he heard no mother tongue he told the nurses to keep silent.
All the babies died before the first year. But clearly there was more than language deprivation (剥夺,丧失). What was missing was good mothering. Without good mothering, in the first year of life especially, the ability to survive is seriously affected.
Today no such extreme deprivation exists as that ordered by Frederick. Nevertheless, some children are still backward in speaking. Most often the reason for this is that the mother is insensitive to signals of the baby, whose brain is programmed, to mop up language rapidly. There are critical times, it seems when children learn more rapidly. If these sensitive periods are neglected, the ideal time for acquiring skills passes and they might never be learned so easily again.
Linguists suggest that speech milestones are reached in a fixed order and at a constant age, but there are cases where speech has started late in a child who eventually turns out to be of high IQ.
Recent evidence suggests that a baby is born with the ability to speak. What is special about man’s brain, compared with that of the monkey, is the complex system which enables a child to connect the sight and feel of, say, a teddy bear with the sound pattern “teddy bear”.
But speech has to be developed, and this depends on interaction between the mother and the child, where the mother recognizes the signals in the child’s babbling, clinging, grasping, crying, smiling, and responds to them. Insensitivity of the mother to these signals reduces the interaction because the child gets discouraged and sends out only the obvious signals. Sensitivity to the child’s nonverbal (非语言的) signals is basic to the growth and development of language.
1.Frederick’s experiment was extreme because _________.
A.he wanted to prove children are born with ability to speak
B.he wanted his nurses to say another language
C.he was unkind to the nurses
D.he ignored the importance of mothering to the babies
2.The reason that some children are backward in speaking is most likely that _________.
A.they do not listen carefully to their mothers
B.their mothers do not respond to their attempts to speak
C.their brain has to absorb too much language at once
D.their mothers are not intelligent enough to help them
3.In paragraph 3, by “critical times” the author means _________.
A.difficult periods in the child’s life
B.moments when the child becomes critical towards its mother
C.important stages in the child’s development
D.times when mothers often neglect their children
4.If a child starts to speak later than others, he will _________ in future.
A.have a high IQ B.be less intelligent
C.not necessarily be backward D.be insensitive to verbal signals
5.If the mother seldom responds to her child’s signals, _________.
A.the child will be able to speak properly
B.the child will continue to give out signals
C.the child will invent a language of own
D.the child will make little effort to speak
高三英语阅读理解中等难度题查看答案及解析