Staying at home, no socializing and wearing a...

Staying at home, no socializing and wearing a face mask if going anywhere have proved to be the most ________ ways to prevent the spread of the novel coronavirus.

A.effective B.expensive C.miserable D.suspicious

高三英语单项填空简单题查看答案及解析

A woman wears a face mask to protect her from polluted air in Lanzhou, China, in December.

A new study showed air pollution might put people more at risk for heart disease than scientists had thought. Kristin Miller, a doctoral student at the University of Washington, said chances of getting the disease were related to not only which city a woman lived in, but also where in the city. The study found that the effects of air pollution were often larger within cities than between cities.

The new findings make experts suspect that current pollution limits may be inadequate. Scientists examined rates of heart attack, stroke (中风) and other cardiovascular (心脏血管的) events in women with long-term exposure to air pollution.

The study involved women over the age of fifty who had no sign of cardiovascular disease at the start of the research. The study followed the women for as long as nine years to see how they would develop cardiovascular problems.

The researchers also examined levels of fine particles (粒子，微粒) in the air in 36 areas across the country. That information came from the Environmental Protection Agency. The extremely small particles came from industrial smoke and traffic, along with things like wood-burning fireplaces in houses.

In the study, every ten-microgram increase in pollution was linked to a twenty-four percent increase in the risk of a cardiovascular event. But it was related to a seventy-six percent increase in the risk of death from cardiovascular disease.

But just how do particles in the air damage the cardiovascular system? The particles may cause the lungs to swell and release chemicals from the pollutants into the blood. The chemicals then could damage the heart.

1.The passage mainly talks about______.

A. the effects of pollution on women

B. how to protect women from air pollution

C. how air pollution damages a person’s heart

D. the relationship between air pollution and heart diseases

2.The case of the woman wearing a face mask shows ______.

A. people are paying more and more attention to their health

B. the woman is afraid of getting heart disease

C. Lanzhou city is more heavily polluted than other cities

D. air pollution is becoming more and more serious

3.We can learn from the passage that _______.

A. air pollution is more serious than scientists thought

B. the control of air pollution is effective in some cities

C. people throughout a city have the same risk of getting heart diseases

D. air pollution affects women more than men

4.The study implies that ______.

A. air pollution has a bigger effect on older women than younger women

B. small particles in the air mainly come from industrial smoke

C. the rise in air pollution may lead to a higher death rate from cardiovascular disease

D. air pollution has been affecting people for as long as nine years in the city of Lanzhou

高三英语阅读理解中等难度题查看答案及解析

A woman wears a face mask to protect her from polluted air in Lanzhou, China, in December．

A new study showed air pollution might put people more at risk for heart disease than scientists had thought．Kristin Miller, a doctoral student at the University of Washington, said chances of getting the disease were related to not only which city a woman lived in, but also where in the city．The study found that the effects of air pollution were often larger within cities than between cities．

The new findings make experts suspect that current pollution limits may be inadequate．Scientists examined rates of heart attack, stroke （中风） and other cardiovascular （心脏血管的） events in women with long-term exposure to air pollution．

The study involved women over the age of fifty who had no sign of cardiovascular disease at the start of the research．The study followed the women for as long as nine years to see how they would develop cardiovascular problems．

The researchers also examined levels of fine particles （粒子，微粒） in the air in 36 areas across the country．That information came from the Environmental Protection Agency．The extremely small particles came from industrial smoke and traffic, along with things like wood-burning fireplaces in houses．

In the study, every ten-microgram increase in pollution was linked to a twenty-four percent increase in the risk of a cardiovascular event．But it was related to a seventy-six percent increase in the risk of death from cardiovascular disease．

But just how do particles in the air damage the cardiovascular system? The particles may cause the lungs to swell and release chemicals from the pollutants into the blood．The chemicals then could damage the heart．

1．The passage mainly talks about______．

A．the effects of pollution on women

B．how to protect women from air pollution

C．how air pollution damages a person’s heart

D．the relationship between air pollution and heart diseases

2．The case of the woman wearing a face mask shows ______．

A．people are paying more and more attention to their health

B．the woman is afraid of getting heart disease

C．Lanzhou city is more heavily polluted than other cities

D．air pollution is becoming more and more serious

3．We can learn from the passage that _______．

A．air pollution is more serious than scientists thought

B．the control of air pollution is effective in some cities

C．people throughout a city have the same risk of getting heart diseases

D．air pollution affects women more than men

4．The study implies that ______．

A．air pollution has a bigger effect on older women than younger women

B．small particles in the air mainly come from industrial smoke

C．the rise in air pollution may lead to a higher death rate from cardiovascular disease

D．air pollution has been affecting people for as long as nine years in the city of Lanzhou

高三英语阅读理解简单题查看答案及解析

In the face of various economic uncertainties at home and abroad, the government has carried out ________ reforms to boost the economy.

A. bureaucratic　 B. systematic　　　　 C.arbitrary　　　　　　 D. ambiguous

高三英语单项填空中等难度题查看答案及解析

Face masks are commonly used in ceremonies and performances. They not only hide the real face of the mask wearer but they often evoke powerful emotions in the audience—danger, fear, sadness, joy. You might think, because so many things vary cross-culturally, that the ways in which emotions are displayed and recognized in the face vary too. Apparently they do not. Recent research on masks from different cultures supports the conclusion that masks, like faces, tend to represent certain emotions in the same ways. We now have some evidence that the symbolism used in masks is often universal.

The research on masks builds on work done by anthropologists, who used photographs of individuals experiencing various emotions. These photographs were shown to members of different cultural groups who were asked to identify the emotions displayed in the photographs. Emotions were identified correctly by most viewers, whatever the viewer’s native culture.

Coding schemes were developed to enable researchers to compare the detailed facial positions of individual portions of die face (eyebrows, mouth, etc.) for different emotions. What exactly do we do when we scowl? We contract the eyebrows and lower the corners of the mouth; in geometric terms, we make angles and diagonals (斜线) on our faces. When we smile, we raise the corners of the mouth; we make it curved.

Psychologist Joel Arnoff and his colleagues compared two types of wooden face masks from many different societies—masks described as threatening versus masks associated with nonthreatening functions. As suspected, the two sets of masks had significant differences in certain facial elements. The threatening masks had eyebrows and eyes facing inward and downward and a downward-facing mouth. In more abstract or geometrical terms, threatening features generally tend to be angular or diagonal and nonthreatening features tend to be curved or rounded, a face with a pointed beard is threatening; a baby's face is not. The theory is that humans express and recognize basic emotions in uniform (一致的) ways because all human faces are quite similar, skeletally and muscularly.

1.What does the passage mainly discuss?

A. The techniques for comparing facial expressions across cultures.

B. The photography of faces.

C. Cultural variations in mask.

D. The uniformity of facial expressions in revealing emotions.

2.According to the passage, masks are used in performances to _______.

A. disguise the real emotions of the performers

B. cause members of the audience to have strong emotions

C. remind the audience that an illusion is being created

D. identify the cultural background of the performers

3.What does the author mean by stating, "the symbolism used in masks is often universal"?

A. Masks are sometimes used to hide emotions.

B. Performers often need help conveying emotions to an audience.

C. Not all societies use masks in their rituals.

D. People from different cultures generally express certain emotions in similar ways.

4.The passage mentions "baby’s face" in the last paragraph as an example of a _______.

A. typical human face

B. source of inspiration in the creation of masks

C. nonthreatening face

D. face that expresses few emotions

高三英语阅读理解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

If you’re like most students, you probably read both at home and outside your home: Perhaps somewhere on your schoolyard and maybe even at work during your breaks. Your reading environment can have a great effect on your understanding, so give some thought to how you can create（营造）or choose the right reading environments. The right environment allows you to stay alert （专注的）and to keep all of your attention on the text, especially when it is both interesting and difficult.

When you’re at home, you can usually create effective conditions for reading. You might want to choose a particular place-----a desk or table, for example ----where you always read. Make sure the place you choose is well lighted, and sit in a chair that requires you to sit straight. Reading

In a chair that’s too soft and comfortable is likely to make you sleepy! Keep your active reading tools (pens, markers, notebooks or paper) and a dictionary close at hand.

Before you sit down for a reading period, try to reduce all possible interruptions. Turn off your phone, the televisions, and the radio. Tell your family members or roommates that you’ll be busy for a while. If necessary , put a “Do not disturb” sign on your door! The more interruptions you must deal with while you read, the harder it will be to keep your attention on the task at hand.

1.The author believes that the right reading environment _______.

A. helps readers a little in their reading tasks

B. helps readers a lot in their reading tasks

C. can only be created at one’s home

D. can only be created outside one’s home

2.Which type of the following interruptions is mentioned in the text?

A. Dictionaries     B. Paper            C. Notebooks            D. Phone calls

3.What would be the best title for the text?

A. What to Read                     B. The Ways to Reduce Possible Interruptions

C. Creating an Effective Reading Environment    D. How to Read Fast

高三英语阅读理解中等难度题查看答案及解析

154. If a man receives no _____ at home, when abroad he’ll have no hosts. (prov.)

高三英语单项填空简单题查看答案及解析

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 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