If humans were truly at home under the light of the moon and stars,we would go in darkness happily,the midnight world as visible to us as it is to the vast number of nocturnal(夜间活动的) species on this planet. Instead,we are diurnal(白天的) creatures, with eyes adapted to living in the sun’s light. This is a basic evolutionary fact, even though most of us don’t think of ourselves as diurnal beings. Yet it’s the only way to explain what we’ve done to the night: We’ve engineered it to receive us by filling it with light.
The benefits of this kind of engineering come with consequences 一 called light pollution 一 whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design,which allows artificial light to shine outward and upward into the sky. III-designed lighting washes out the darkness of night and completely changes the light levels 一 and light rhythms — to which many forms of life, including, ourselves, have adapted. Wherever human light spills into the natural world, some aspect or life is affected .
In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze(霾) that mirrors our fear of the dark. We’ve grown so used to this orange haze that the original glory of an unlit night, - dark enough for the planet Venus to throw shadow on Earth, is wholly beyond our experience, beyond memory almost.
We’ve lit up the night as if it were an unoccupied country, when nothing could be further form the truth. Among mammals alone, the number of nocturnal species is astonishing, Light is a powerful biological force, and on many species it acts as a magnet(磁铁). The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.
Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times righter than normal, throwing nearly every aspect of their behavior out of joint including most other creatures ,we do need darkness .Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.
Living in a glare of our making,we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night .In a very real sense light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way—the edge of our galaxy arching overhead.
1.According to the passage, human being .
A. prefer to live in the darkness
B. are used to living in the day light
C. were curious about the midnight world
D. had to stay at home with the light of the moon
2.What does “it”(Paragraph 1) most probably refer to?
A. The night. B. The moon
C. The sky D. The planet
3.The writer mentions birds and frogs to .
A. provide examples of animal protection
B. show how light pollution affects animals
C. compare the living habits of both species
D. explain why the number of certain species has declined
4.It is implied in the last paragraph that
A. light pollution dose harm to the eyesight of animals
B. light pollution has destroyed some of the world heritages
C. human beings cannot go to the outer space
D. human beings should reflect on their position in the universe
高三英语阅读理解中等难度题
If humans were truly at home under the light of the moon and stars, we would go in darkness happily, the midnight world as visible to us as it is to the vast number of nocturnal(夜间活动的) species on this planet. Instead, we are diurnal creatures, with eyes adapted to living in the sun’s light. This is a basic evolutionary fact, even though most of us don’t think of ourselves as diurnal beings. Yet it’s the only way to explain what we’ve done to the night: We’ve engineered it to receive us by filling it with light.
The benefits of this kind of engineering come with consequences — called light pollution — whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design, which allows artificial light to shine outward and upward into the sky. Ill-designed lighting washes out the darkness of night and completely changes the light levels — and light rhythms — to which many forms of life, including ourselves, have adapted. Wherever human light spills into the natural world, some aspect or life is affected. In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze (霾) that mirrors our fear of the dark. We’ve grown so used to this orange haze that the original glory of an unlit night, — dark enough for the planet Venus to throw shadow on Earth — is wholly beyond our experience, beyond memory almost.
We’ve lit up the night as if it were an unoccupied country, when nothing could be further from the truth. Among mammals alone, the number of nocturnal species is astonishing. Light is a powerful biological force, and on many species it acts as a magnet(磁铁). The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.
Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times brighter than normal, throwing nearly every aspect of their behavior out of joint, including their nighttime breeding choruses. Humans are no less trapped by light pollution than the frogs. Like most other creatures, we do need darkness. Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.
Living in a glare of our own making, we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night. In a very real sense light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way—the edge of our galaxy-arching overhead.
1.What does the underlined word “it” (Paragraph 1) most probably refer to ?
A.The moon. B.The night.
C.The sky. D.The planet.
2.The writer mentions birds and frogs to _________.
A.show how light pollution affects animals
B.provide examples of animal protection
C.compare the living habits of both species
D.explain why the number of certain species has declined
3.It is implied in the last paragraph that ___________.
A.human beings cannot go to the outer space
B.light pollution does harm to the eyesight of animals
C.human beings should reflect on their position in the universe
D.light pollution has destroyed some of the world heritages
4.What might be the best title for the passage?
A.The Magic Light. B.The Orange Haze.
C.The Rhythms of Nature. D.The Disappearing Night.
高三英语阅读理解中等难度题查看答案及解析
If humans were truly at home under the light of the moon and stars,we would go in darkness happily,the midnight world as visible to us as it is to the vast number of nocturnal(夜间活动的) species on this planet. Instead,we are diurnal(白天的) creatures, with eyes adapted to living in the sun’s light. This is a basic evolutionary fact, even though most of us don’t think of ourselves as diurnal beings. Yet it’s the only way to explain what we’ve done to the night: We’ve engineered it to receive us by filling it with light.
The benefits of this kind of engineering come with consequences 一 called light pollution 一 whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design,which allows artificial light to shine outward and upward into the sky. III-designed lighting washes out the darkness of night and completely changes the light levels 一 and light rhythms — to which many forms of life, including, ourselves, have adapted. Wherever human light spills into the natural world, some aspect or life is affected .
In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze(霾) that mirrors our fear of the dark. We’ve grown so used to this orange haze that the original glory of an unlit night, - dark enough for the planet Venus to throw shadow on Earth, is wholly beyond our experience, beyond memory almost.
We’ve lit up the night as if it were an unoccupied country, when nothing could be further form the truth. Among mammals alone, the number of nocturnal species is astonishing, Light is a powerful biological force, and on many species it acts as a magnet(磁铁). The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.
Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times righter than normal, throwing nearly every aspect of their behavior out of joint including most other creatures ,we do need darkness .Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.
Living in a glare of our making,we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night .In a very real sense light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way—the edge of our galaxy arching overhead.
1.According to the passage, human being .
A. prefer to live in the darkness
B. are used to living in the day light
C. were curious about the midnight world
D. had to stay at home with the light of the moon
2.What does “it”(Paragraph 1) most probably refer to?
A. The night. B. The moon
C. The sky D. The planet
3.The writer mentions birds and frogs to .
A. provide examples of animal protection
B. show how light pollution affects animals
C. compare the living habits of both species
D. explain why the number of certain species has declined
4.It is implied in the last paragraph that
A. light pollution dose harm to the eyesight of animals
B. light pollution has destroyed some of the world heritages
C. human beings cannot go to the outer space
D. human beings should reflect on their position in the universe
高三英语阅读理解中等难度题查看答案及解析
C
If humans were truly at home under the light of the moon and stars,we would go in darkness happily,the midnight world as visible to us as it is to the vast number of nocturnal(夜间活动的) species on this planet. Instead,we are diurnal creatures, with eyes adapted to living in the sun’s light. This is a basic evolutionary fact, even though most of us don’t think of ourselves as diurnal beings. Yet it’s the only way to explain what we’ve done to the night: We’ve engineered it to receive us by fillingitwith light.
The benefits of this kind of engineering come with consequences 一 called light pollution 一 whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design,which allows artificial light to shine outward and upward into the sky. III-designed lighting washes out the darkness of night and completely changes the light levels 一 and light rhythms — to which many forms of life, including, ourselves, have adapted. Wherever human light spills into the natural world, some aspect or life is affected .
In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze(霾) that mirrors our fear of the dark. We’ve grown so used to this orange haze that the original glory of an unlit nigh, - dark enough for the planet Venus to throw shadow on Earth, is wholly beyond our experience, beyond memory almost.
We’ve lit up the night as if it were an unoccupied country, when nothing could be further form the truth. Among mammals alone, the number of nocturnal species is astonishing, Light is a powerful biological force, and on many species it acts as a magnet(磁铁). The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.
Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times righter than normal, throwing nearly every aspect of their behavior out of joint including most other creatures ,we do need darkness .Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.
Living in a glare of our making,we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night .In a very real sense light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way—the edge of our galaxy arching overhead.
1.According to the passage, human being .
A.prefer to live in the darkness
B.are used to living in the day light
C.were curious about the midnight world
D.had to stay at home with the light of the moon
2.What does “it”(Paragraph 1) most probably refer to?
A.The night. B.The moon
C.The sky D.The planet
3.The writer mentions birds and frogs to .
A.provide examples of animal protection
B.show how light pollution affects animals
C.compare the living habits of both species
D.explain why the number of certain species has declined
4.It is implied in the last paragraph that .
A.light pollution dose harm to the eyesight of animals
B.light pollution has destroyed some of the world heritages
C.human beings cannot go to the outer space
D.human beings should reflect on their position in the universe
5.What might be the best title for the passage?
A.The Magic light.
B.The Orange Haze.
C.The Disappearing Night.
D.The Rhythms of Nature.
高三英语阅读理解中等难度题查看答案及解析
C
If humans were truly at home under the light of the moon and stars,we would go in darkness happily,the midnight world as visible to us as it is to the vast number of nocturnal(夜间活动的) species on this planet. Instead,we are diurnal creatures, with eyes adapted to living in the sun’s light. This is a basic evolutionary fact, even though most of us don’t think of ourselves as diurnal beings. Yet it’s the only way to explain what we’ve done to the night: We’ve engineered it to receive us by filling it with light.
The benefits of this kind of engineering come with consequences 一 called light pollution 一 whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design,which allows artificial light to shine outward and upward into the sky. III-designed lighting washes out the darkness of night and completely changes the light levels 一 and light rhythms — to which many forms of life, including, ourselves, have adapted. Wherever human light spills into the natural world, some aspect or life is affected .
In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze(霾) that mirrors our fear of the dark. We’ve grown so used to this orange haze that the original glory of an unlit nigh, - dark enough for the planet Venus to throw shadow on Earth, is wholly beyond our experience, beyond memory almost.
We’ve lit up the night as if it were an unoccupied country, when nothing could be further form the truth. Among mammals alone, the number of nocturnal species is astonishing, Light is a powerful biological force, and on many species it acts as a magnet(磁铁). The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.
Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times righter than normal, throwing nearly every aspect of their behavior out of joint including most other creatures ,we do need darkness .Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.
Living in a glare of our making,we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night .In a very real sense light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way—the edge of our galaxy arching overhead.
1.According to the passage, human being .
A. prefer to live in the darkness
B. are used to living in the day light
C. were curious about the midnight world
D. had to stay at home with the light of the moon
2.What does “it”(Paragraph 1) most probably refer to?
A. The night. B. The moon
C. The sky D. The planet
3. The writer mentions birds and frogs to .
A. provide examples of animal protection
B. show how light pollution affects animals
C. compare the living habits of both species
D. explain why the number of certain species has declined
4.It is implied in the last paragraph that .
A. light pollution dose harm to the eyesight of animals
B. light pollution has destroyed some of the world heritages
C. human beings cannot go to the outer space
D. human beings should reflect on their position in the universe
5.What might be the best title for the passage?
A. The Magic light.
B. The Orange Haze.
C. The Disappearing Night.
D. The Rhythms of Nature.
高三英语阅读理解中等难度题查看答案及解析
As a child, I was truly afraid of the dark and of getting lost; these fears were very real and caused me some uncomfortable moments.
Maybe it was the strange 26 things looked and sounded in my familiar room at night that 27 me so much. There was never total 28 , but a streetlight or passing car lights 29 clothes hung over a chair take on(呈现) the30 of a wild animal. Out of the corner of my 31 , I saw the curtains seem to move when there was no 32 . A tiny sound in the floor would seem a hundred times louder than in the daylight. My 33 would run wild, and my heart would beat fast. I would 34 very still so that the “enemy” would not discover me.
Another of my childhood fears was that I would get lost, 35 on the way home from school. Every morning I got on the school bus right near my home .That was no 36 . After school, 37 , when all the buses were 38 up along the street, I was afraid that I’d get on the wrong one and be taken to some 39 neighborhood. On school or family trips to a park or a museum, I wouldn’t let the leaders out of my 40 .
Perhaps one of the worst fears41 all I had as a child was that of not being liked or42 by others. Being popular was so important to me43 , and the fear of not being liked was a 44 one.
One of the processes(过程) of growing up is being able to 45 and overcome(克服) our fears. Understanding the things that frightened us as children helps us achieve greater success later in life.
1.A. way B. time C. place D. reason
2.A. wounded B. destroyed C. surprised D. frightened
3.A. quietness B. darkness C. emptiness D. loneliness
4.A. got B. forced C. made D. caused
5.A. spirit B. height C. body D. shape
6.A. eye B. window C. mouth D. door
7.A. breath B. wind C. air D. sound
8.A. belief B. feeling C. imagination D. doubt
9.A. lay B. hide C. rest D. lie
10.A. especially B. simply C. probably D. directly
11.A. discussion B. problem C. joke D. matter
12.A. however B. yet C. although D. still
13.A. called B. backed C. lined D. packed
14.A. old B. crowded C. poor D. unfamiliar
15.A. sight B. mind C. order D. task
16.A. above B. in C. of D. at
17.A. protected B. guided C. believed D. accepted
18.A. then B. there C. once D. anyway
19.A. strict B. powerful C. heavy D. right
20.A. form B. remember C. recognize D. recover
高三英语完型填空困难题查看答案及解析
Why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world?It’s an increasingly urgent question,given the recent highprofile(引人注目的) mining accidents in Sago,W.Va.and Huntington,Utah.A small group of engineers and robotics experts look forward to a day in the nottoodistant future when robots and other technology do most of the dangerous mining work.
Robotic technology,in particular,holds much promise,McAteer says,especially when it comes to mapping mines and rescuing trapped miners—the special operations of the mining industry.
One of the first mining robots was developed five years ago at CarnegieMellon University’s Robotics Institute.It was called Groundhog and it looked like a golf cart.It used lasers(激光器) to “see” in dark tunnels and map abandoned mines—some of the most dangerous work in the business.
The latest design is called Cave Crawler.It’s a bit smaller than Groundhog,and even more advanced.It can take photos and video and has sensors mounted(增加) that can detect the presence of dangerous gases.Incredibly,the robot has a real sense of logic.If it comes across an obstacle it gets confused.It has to think through the process and where to go next,and sometimes it throws_a_fit just like a real person.
The biggest obstacle,though,is cost.The original research project was federally funded,but that money has dried up,and it’s not clear where future funding will come from. Partly for that reason,and partly because of advances in safety,mining is not nearly as dangerous as it was in the past.Since 1990,fatalities(致命性) have declined by 67 percent and injuries by 51 percent,according to the National Mining Association.
Some experts predict that robots in mines will serve much of the same function that they do in the automotive industry.The robots do the most repetitive and dangerous jobs,but don’t eliminate(消除) the need for human workers.
1.The underlined phrase “throws a fit” in Paragraph 4 probably means “________”.
A.gets angry B.gets sick
C.becomes hungry D.becomes cheerful
2.We can infer from the last paragraph that ________.
A.robots in mines will serve much in the automotive industry
B.there will be no need for human workers in mines
C.the mine robots will have a very bright future
D.robots in mines have a long way to go
3.Which of the following is TRUE according to the text?
A.Mining robots do most of the mining work at present.
B.Groundhog can discover the presence of dangerous gases.
C.Experts are trying to make robots save miners in danger.
D.Robots cannot do dangerous work in dark areas.
4.What can be the best title for the text?
A.Mining Accidents in America
B.Could Robots Replace Humans in Mines?
C.Cave Crawler,the Latest Robot
D.The Development of Robots
高三英语阅读理解中等难度题查看答案及解析
If you are worried about things and are under a lot of stress at work or school, then you are probably not sleeping well. Worry can keep you awake, tossing(翻来覆去) and turning in bed until the early hours of the morning when you eventually fall asleep. When you wake up, you don’t feel refreshed, but tired and worn out and unable to face a new day.
Dr. Henry Winkle, in a recent newspaper article entitled Stress and Sleep, indicates that ________. Dr. Winkle says, “The more we worry, the less we sleep, the more we are unable to deal with stress. If we can find a way to get a good night’s sleep,” he adds, “we can often find the energy to deal with what’s worrying us.”
So, what is a good night’s sleep? Research shows that the amount of sleep which people need in order to keep healthy varies a lot. Seven hours is about average amount, though strangely enough, sleeping longer often gives you a headache instead of making you feel more refreshed.
Dr. Winkle believes that preparing for sleeping is important. People who work late should try to give themselves a short break and do something restful before going to bed. This could be watching TV or listening to music. Doing some exercise earlier in the day should help you to feel physically as well as mentally tired. A bedtime drink can also help, but coffee or tea should be avoided as they contain caffeine and will keep you awake. “When you put the light out,” Dr. Winkle says, “concentrate on relaxing your muscles, working slowly up from your feet, and you’ll be asleep before you know it.”
1.What is the best title of the passage? (Please answer within 5 words)
2.Which sentence in the passage can be replaced by the following one?
People shouldn’t go to sleep immediately but should take a break after working late in the night.
3.Please fill in the blank in the second paragraph with proper words or phrases to complete the sentence. (Please answer within 10 words)
4.Someone says that the longer you sleep, the better you feel. Try to find an argument from the passage against the idea. (Please answer within 15 words)
5.Translate the underlined sentence in the first paragraph into Chinese.
高三英语填空题中等难度题查看答案及解析
Even if we have an extremely healthy diet and lifestyle, the human body is programmed to wear out at a maximum of about 120 years, and usually less. We all have a biological clock inside us which determines the moment when our organs cease to function properly. This is because our cells have stopped renewing themselves and our body can no longer repair itself. This is also the moment when we are more likely to begin to suffer from the diseases of old age such as arthritis and Alzheimer’s. However, rapid advances in DNA research are beginning to throw light on the secrets of the ageing process. By the end of this century we could literally have the power of life over death.
Although it has long been accepted that humans have a fixed lifespan, it is also a fact that certain other organisms, such as reptiles and amphibians, appear to live indefinitely. The only reason we do not see 500-year-old alligators is because in the wild their lives are always in danger, from man, from pollution and from other animals. When they are kept in zoos they do not seem to age at all after they are fully grown. The same is true of some species of fish, which grow indefinitely and show no signs of ageing. The existence of animals with no fixed lifespan seems to indicate that an age gene really does exist. It is this gene which scientists are searching for, which may delay or repair damage to the body caused by ageing.
Another new area of research involves the oxidation(氧化) theory, which says that ageing is caused by the same process that makes iron rust. In controlled experiments, the lifespans of certain animals were shown to be lengthened with anti-oxidants; for example, the lifespan of mice can be increased by 30%. Antioxidants are already being used in face creams and other cosmetics, and they are likely to play an important part in keeping people physically young.
Perhaps the most immediate advance we are likely to see in the battle to halt(停止)the ageing process will be organ replacement. By the year 2020 it is likely that we will be replacing injured bones or even organs like livers and kidneys with ones “grown” in laboratories. By 2050 perhaps every organ in the body, except the brain, will have become commercially available. Recent experiments also show that it may one day be possible to “grow” new organs inside our body to replace worn-out ones, something which lizards and alligators already do.
Suddenly immortality(不死,不朽) seems within reach. We can begin to imagine a future where we are born, we grow to maturity, but we never grow old and die. But do we really want to live forever?
1. When all humans reach a certain age, ________.
A.they suffer the effects of their diet and lifestyle
B.the organs stop to perform appropriately
C.their cells continue to renew themselves
D.they develop arthritis and Alzheimer’s
2. The purpose of showing the case of alligators is to prove ________.
A.alligators are in danger in the wild because of the threat from man, pollution and other animals
B.it is widely accepted that humans have a fixed lifespan
C.there exists an age gene which may control ageing
D.the age gene damages the body
3.The underlined phrase “live indefinitely” in Paragraph 2 probably mean ________.
A.live for a period of time without a fixed end
B.live without a clear aim
C.live in an uncertain way
D.live without being fully grown
4.It can be inferred from Paragraph 4 that ________.
A.by 2050 we might have most of our worn-out organs replaced with new ones commercially
B.never can the ageing process be avoided
C.livers and kidneys are sure to be grown in laboratories by the year 2020
D.lizards and alligators grow new organs inside their body to replace worn-out ones
5. What is the main topic of this passage?
A.DNA researches show how our cells renew themselves.
B.Anti-oxidants are likely to play an important part in keeping people young.
C.How our biological clock works?
D.Eternal(永恒的) youth: new developments in anti-ageing research.
6.By saying “But do we really want to live forever”, the author may probably mean ________.
A.a future where we are born, we grow to maturity, but we never grow old and die is on its way
B.he is uncertain whether we can live forever
C.it remains to be seen whether immortality is a blessing or a curse
D.immortality is no longer a dream
高三英语阅读理解简单题查看答案及解析
Days of snowstorms have left the city under thick layers of ice and some 50,000 homes without power.
A.to be trapped B.trapped C.having trapped D.being trapped
高三英语单项填空中等难度题查看答案及解析
.Days of snowstorms have left the city under thick layers of ice and some 50,000 homes without power.
A.to be trapped B.trapped
C.having trapped D.being trapped
高三英语单项填空中等难度题查看答案及解析