Millions of teenagers are in danger of putting their health at risk by getting hooked on e-cigarettes, experts warn. Leading health researchers say they are “very concerned” by the growing number of youngsters trying the devices.
Ecigarettes have been marketed as a healthier alternative to smoking conventional cigarettes. But previous research shows ecigarettes generate poisonous chemicals similar to those found in tobacco and may harm the lungs and immune system.
Worryingly, researchers at Liverpool University discovered 16% of teenagers who have used ecigarettes had never previously smoked. The experts also found ecigarettes were “strongly related” to drinking among teenagers. Study author Prof. Mark Bellis said, “Our research suggests that we should be very concerned about teenagers accessing ecigarettes. While debate on ecigarettes has focused largely on whether or not they act as a gateway to tobacco cigarette use, ecigarettes themselves contain a highly addictive drug that may have more serious and longer lasting impacts on children because their brains are still developing.”
Researchers surveyed 16,000 students aged 14 to 17 in the North West of England and asked them about their alcohol and tobacco use. They found that one in five answered yes to the question: “Have you ever bought or tried electronic cigarettes?” More males than females said they had.
Of the teenagers that had accessed ecigarettes, 16% had never smoked, 23% had tried smoking, 12% only smoked when drinking, and 14% were exsmokers. The research also found teenagers who drank alcohol were significantly more likely to have accessed ecigarettes than nondrinkers.
Among those who had never smoked, it was found that those who regularly have excessive(过多的)drinking were four times more likely to access ecigarettes than those who never drink. In all of those that drink, regardless of smoking status, ecigarette access was associated with excessive drinking and involvement with violence after drinking. The researchers said their findings suggest that teenagers who use ecigarettes are most susceptible to other forms of substance use and risktaking behaviors.
1.How have ecigarettes been promoted in the market?
A. As a healthier substitute for traditional cigarettes.
B. As a device meeting the mental needs of smokers.
C. As a product preventing smokers from using tobacco products.
D. As a new device promoted among youngsters.
2.What do we learn from the survey made in the North West of England?
A. E-cigarettes are now widely available and heavily promoted.
B. Ecigarette access is linked to excessive drinking and violence after it.
C. Teenagers are very knowledgeable about alcohol and tobacco use.
D. The number of adult cigarette smokers is dropping at present.
3.Which of the following can replace the underlined words “susceptible to” in the last paragraph?
A. greatly interested in
B. commonly accustomed to
C. deeply disappointed at
D. easily influenced by
4.What's the main idea of the passage?
A. Experts are concerned about excessive drinking in teenagers.
B. The harm of the ecigarettes is greater than that of alcohol.
C. Teenagers are in danger of risking their health on ecigarettes.
D. Researchers are aware of smokerelated health harm.
高三英语阅读理解困难题
Millions of teenagers are in danger of putting their health at risk by getting hooked on e-cigarettes, experts warn. Leading health researchers say they are “very concerned” by the growing number of youngsters trying the devices.
Ecigarettes have been marketed as a healthier alternative to smoking conventional cigarettes. But previous research shows ecigarettes generate poisonous chemicals similar to those found in tobacco and may harm the lungs and immune system.
Worryingly, researchers at Liverpool University discovered 16% of teenagers who have used ecigarettes had never previously smoked. The experts also found ecigarettes were “strongly related” to drinking among teenagers. Study author Prof. Mark Bellis said, “Our research suggests that we should be very concerned about teenagers accessing ecigarettes. While debate on ecigarettes has focused largely on whether or not they act as a gateway to tobacco cigarette use, ecigarettes themselves contain a highly addictive drug that may have more serious and longer lasting impacts on children because their brains are still developing.”
Researchers surveyed 16,000 students aged 14 to 17 in the North West of England and asked them about their alcohol and tobacco use. They found that one in five answered yes to the question: “Have you ever bought or tried electronic cigarettes?” More males than females said they had.
Of the teenagers that had accessed ecigarettes, 16% had never smoked, 23% had tried smoking, 12% only smoked when drinking, and 14% were exsmokers. The research also found teenagers who drank alcohol were significantly more likely to have accessed ecigarettes than nondrinkers.
Among those who had never smoked, it was found that those who regularly have excessive(过多的)drinking were four times more likely to access ecigarettes than those who never drink. In all of those that drink, regardless of smoking status, ecigarette access was associated with excessive drinking and involvement with violence after drinking. The researchers said their findings suggest that teenagers who use ecigarettes are most susceptible to other forms of substance use and risktaking behaviors.
1.How have ecigarettes been promoted in the market?
A. As a healthier substitute for traditional cigarettes.
B. As a device meeting the mental needs of smokers.
C. As a product preventing smokers from using tobacco products.
D. As a new device promoted among youngsters.
2.What do we learn from the survey made in the North West of England?
A. E-cigarettes are now widely available and heavily promoted.
B. Ecigarette access is linked to excessive drinking and violence after it.
C. Teenagers are very knowledgeable about alcohol and tobacco use.
D. The number of adult cigarette smokers is dropping at present.
3.Which of the following can replace the underlined words “susceptible to” in the last paragraph?
A. greatly interested in
B. commonly accustomed to
C. deeply disappointed at
D. easily influenced by
4.What's the main idea of the passage?
A. Experts are concerned about excessive drinking in teenagers.
B. The harm of the ecigarettes is greater than that of alcohol.
C. Teenagers are in danger of risking their health on ecigarettes.
D. Researchers are aware of smokerelated health harm.
高三英语阅读理解困难题查看答案及解析
Every week in China, millions of people will sit in front of their TVs watching teenagers compete for the title Character Hero, which is a Chinese-style spelling bee(拼写大赛). In this challenge, young competitors must write Chinese characters by hand. To prepare for the competition, the competitors usually spend months studying dictionaries.
Perhaps the show’s popularity should not be a surprise. Along with gunpowder and paper, many Chinese people consider the creation of Chinese calligraphy(书法)to be one of their primary contributions to civilization. Unfortunately, all over the country, Chinese people are forgetting how to write their own language without computerized help. Software on smart phones and computers allows users to type in the basic sound of the word using the Latin alphabet. The correct character is chosen from a list. The result? It’s possible to recognize characters without remembering how to write them.
But there’s still hope for the paint brush. China’s Education Ministry wants children to spend more time learning how to write.
In one Beijing primary school we visited, students practice calligraphy every day inside a specially decorated classroom with traditional Chinese paintings hanging on the walls. Soft music plays as a group of six-year-olds dip brush pens into black ink. They look up at the blackboard often to study their teacher’s examples before carefully attempting to reproduce those characters on thin rice paper. “If adults can survive without using handwriting, why bother to teach it now?” we ask the calligraphy teacher, Shen Bin. “The ability to write characters is part of Chinese tradition and culture,” she reasons. “Students must learn now so they don’t forget when they grow up.” says the teacher.
1. What can we learn about the Character Hero?
A. It’s open to people of all ages and all walks.
B. It’s the most-viewed TV programs in China.
C. It aims to spread Chinese culture to the world.
D. It draws great public attention across the country.
2.Why are Chinese people forgetting how to write the characters?
A. Chinese people don’t refer to dictionaries very often.
B. Chinese people no longer use brush pens or practice calligraphy.
C. Chinese people are using the Latin alphabet instead of the characters.
D. Chinese people needn’t write by hand as often with the help of technology.
3.According to Shen Bin, being able to write characters by hand is_________.
A. necessary for adults to survive in China
B. a requirement made by the Education Ministry
C. helpful to keep Chinese tradition and culture alive
D. an ability to be developed only when you are students
4.Where does this text probably come from?
A. A news report. B. A science report.
C. An advertisement. D. Children’s literature.
高三英语阅读理解简单题查看答案及解析
Every week in China, millions of people will sit in front of their TVs watching teenagers compete for the title Character Hero, which is a Chinese-style spelling bee(拼写大赛). In this challenge, young competitors must write Chinese characters by hand. To prepare for the competition, the competitors usually spend months studying dictionaries.
Perhaps the show’s popularity should not be a surprise. Along with gunpowder and paper, many Chinese people consider the creation of Chinese calligraphy(书法)to be one of their primary contributions to civilization. Unfortunately, all over the country, Chinese people are forgetting how to write their own language without computerized help. Software on smart phones and computers allows users to type in the basic sound of the word using the Latin alphabet. The correct character is chosen from a list. The result? It’s possible to recognize characters without remembering how to write them.
But there’s still hope for the paint brush. China’s Education Ministry wants children to spend more time learning how to write.
In one Beijing primary school we visited, students practice calligraphy every day inside a specially decorated classroom with traditional Chinese paintings hanging on the walls. Soft music plays as a group of six-year-olds dip brush pens into black ink. They look up at the blackboard often to study their teacher’s examples before carefully attempting to reproduce those characters on thin rice paper. “If adults can survive without using handwriting, why bother to teach it now?” we ask the calligraphy teacher, Shen Bin. “The ability to write characters is part of Chinese tradition and culture,” she reasons. “Students must learn now so they don’t forget when they grow up.” says the teacher.
1.What can we learn about the Character Hero?
A. It’s open to people of all ages and all walks.
B. It’s the most-viewed TV programs in China.
C. It aims to spread Chinese culture to the world.
D. It draws great public attention across the country.
2.Why are Chinese people forgetting how to write the characters?
A. Chinese people don’t refer to dictionaries very often.
B. Chinese people no longer use brush pens or practice calligraphy.
C. Chinese people are using the Latin alphabet instead of the characters.
D. Chinese people needn’t write by hand as often with the help of technology.
3.According to Shen Bin, being able to write characters by hand is_________.
A. necessary for adults to survive in China
B. a requirement made by the Education Ministry
C. helpful to keep Chinese tradition and culture alive
D. an ability to be developed only when you are students
4.Where does this text probably come from?
A. A news report. B. A science report.
C. An advertisement. D. Children’s literature.
高三英语阅读理解中等难度题查看答案及解析
Scientists say a huge percentage of bird species are in danger because their habitats are disappearing.
The scientists studied the migration, or flight, paths, of almost 1,500 species and decided that 91 percent of them passed through dangerous areas. The major danger for migratory birds is development. Building and paving have covered over nature where birds stop and feed as they move from one part of the world to another.
For example, a bird called the bar-tailed godwit migrates from its breeding grounds in the Arctic. It flies all the way to Australia and New Zealand. The problem, according to investigators, is that many of these small birds die along their migration because they don't have a safe place to eat and rest. There is no place to restore their energy for the next part of their journey. "They simply perish along the way," says one of the scientists.
Countries in North Africa, Central Asia and those along the coasts of East Asia are having the most difficult time conserving land. The scientists say these countries do not have enough areas that are safe for birds.
"Our world gets poorer every time we lose a species,’’ one of the scientists says.
The researchers say countries need to work together and come up with safe stopover areas for birds that pass through their boundaries.
For example, one country might have preserved safe zones for migrating birds. But a neighbor country might not. A bird might die.
One scientist who is not involved in the report tells the Los Angeles Times that while some habitats are changing, more work can be done to make urban areas safe for birds. He says small changes—like planting more native plants or keeping cats out of areas birds would be likely to use—could make a big difference.
1.What’s the major danger for migratory birds according to the passage?
A.They can’t find enough food along the way.
B.They have lost their way because of human development.
C.Human development has occupied their natural habitats.
D.They are sometimes struck by human diseases.
2.What do we know about bar-tailed godwits?
A.They fly from the Arctic south to Australia every year.
B.They can pick out good resting place along the way.
C.They have died out because of human hunting.
D.They have their conserved land in Australia.
3.Which of the following is closest in meaning to the underlined word "perish" in Paragraph 3?
A.Continue. B.Die.
C.Settle. D.Migrate.
4.What suggestion does the scientist say to the Los Angeles Times?
A.Countries working together to protect the sea.
B.Protecting the original habitats for the migrating birds.
C.Reserving some land for the birds to rest along the way.
D.Planting some native plants for the migrating birds to use.
高三英语阅读理解中等难度题查看答案及解析
Scientists say a huge percentage of bird species are in danger because their habitats are disappearing.
The scientists studied the migration, or flight, paths, of almost 1,500 species and decided that 91 percent of them passed through dangerous areas. The major danger for migratory birds is development. Building and paving have covered over nature where birds stop and feed as they move from one part of the world to another.
For example, a bird called the bar-tailed godwit migrates from its breeding grounds in the Arctic. It flies all the way to Australia and New Zealand. The problem, according to investigators, is that many of these small birds die along their migration because they don't have a safe place to eat and rest. There is no place to restore their energy for the next part of their journey. "They simply perish along the way," says one of the scientists.
Countries in North Africa, Central Asia and those along the coasts of East Asia are having the most difficult time conserving land. The scientists say these countries do not have enough areas that are safe for birds.
"Our world gets poorer every time we lose a species,’’ one of the scientists says.
The researchers say countries need to work together and come up with safe stopover areas for birds that pass through their boundaries.
For example, one country might have preserved safe zones for migrating birds. But a neighbor country might not. A bird might die.
One scientist who is not involved in the report tells the Los Angeles Times that while some habitats are changing, more work can be done to make urban areas safe for birds. He says small changes—like planting more native plants or keeping cats out of areas birds would be likely to use—could make a big difference.
1.What’s the major danger for migratory birds according to the passage?
A.They can’t find enough food along the way.
B.They have lost their way because of human development.
C.Human development has occupied their natural habitats.
D.They are sometimes struck by human diseases.
2.What do we know about bar-tailed godwits?
A.They fly from the Arctic south to Australia every year.
B.They can pick out good resting place along the way.
C.They have died out because of human hunting.
D.They have their conserved land in Australia.
3.The countries along the migrating route need to ________.
A.fight the poverty of people to protect the birds
B.work together to conserve safe areas for birds
C.plant more trees to provide safe areas for birds
D.maintain a good relationship with neighboring countries
4.What suggestion does the scientist say to the Los Angeles Times?
A.Countries working together to protect the sea.
B.Protecting the original habitats for the migrating birds.
C.Reserving some land for the birds to rest along the way.
D.Planting some native plants for the migrating birds to use.
高三英语阅读理解中等难度题查看答案及解析
Tens of thousands of young in Britain who are struggling with their mental health are seeking help online for problems such as anxiety, self-harm, and depression.
Soaring numbers of under-18s are turning to apps, online counselling and “mood diaries” to help them manage and recover from conditions that have left them feeling low, isolated and, in some cases, suicidal.
A generation of young people are attracted by being able to receive fast, personal care and advice using their phone rather than having to wait up to 18 months to be treated by an NHS mental heath professional.
The shift comes as ministers prepare themselves for publication on Thursday of the first new figures for 13 years showing how common mental health problems are in the young mainly as a result of the emergence of social media and its use in fuelling feelings of inadequacy.
The number of under-18s using Kooth, a free online counselling(咨询的）service, has shot up from 20,000 in 2015 to 65,000 last year, and is forecast to rise further to 100,000 this year.
One hundred NHS clinical commissioning groups across England, more than half the total, have now commissioned the service. It helps young people suffering from anxiety, low mood, poor self-worth or confidence, self-harm and loneliness.
“Young people like the fact they can talk to a counsellor either instantly, or within 10 minutes, for up to an hour in the evenings. They love that immediacy”，said Aaron Sefi, the research and evaluation director at XenZone, the company behind Kooth.
“They also love the anonymity involved, because they can sign up without giving their personal details. Plus, they’re in control, because they are choosing to contact us rather than being told to do so.”
In addition, 123,138 people in the UK download. Calm Harm, an NHS-approved app that helps people self-harm less often or not at all, between April 2017 and this month.
“Users tell us that Calm Harm helps with suicidal thoughts and intent,” said Dr. Nihara Krause, the consultant clinical psychologist who developed the app. “Currently 92% of our users, who are mainly female and often aged 15-21, say the urge reduced.”
Calm Harm is among 18 apps that NHS England has endorsed(支持）to help cope with mental ill-health. They also include Bluelce, which helps young people manage their emotions using a mood diary and automatic routing(自动转接) to emergency help numbers if their urges to self-harm continue.
Experts welcomed the trend but warned that online help must complement, not replace, face-to-face appointments with therapists, psychologists and psychiatrists.
“Most young people spend much of their time online, and it can feel easier for them to communicate through messaging and online services than face-to-face,” said Tom Madders, campaigns director at Young Minds, which helps people under 26.
“Evidence-based mental health apps and online support services can be really beneficial in helping young people to look after their own mental health, develop strategies for coping with difficult emotions, and get accessible information and advice when they need it.”
Claire Murdoch, NHS England’s national mental health director, said: “Technology is constantly evolving and young people are usually at the forefront, so it’s no surprise increasing numbers are turning to services like these which can certainly play a part, particularly when backed up by face-to-face support.”
The NHS’s forthcoming long-term plan, due next month, will “harness(利用）all of the benefits these advancements can bring”，she added.
Meanwhile, 37% of the young people referred to NHS child and adolescent mental health services (Camhs) in England last year were refused help, the children’s commissioner has revealed.
In an analysis of Camhs care published on Thursday, the children’s commissioner for England, Anne Longfield, says that despite promises by politicians and NHS bosses to improve access, “a vast gap remains between what is provided and what children need”.
While she found improvements in several areas of care, including care for eating disorders, new mothers and under- 18s in the criminal justice system, overall “the current rate of progress is still not good enough for the majority of children who require help but are not receiving it”.
1.Online help can be characterized as .______
A. instant, confidential and controllable
B. attractive, convenient and symbolic
C. effective, accessible and controversial
D. considerate, authentic and impractical
2.Teenagers suffer from mental problems mainly because______ .
A. they lack professional guidance
B. they tend to be more self-centred
C. social media make them feel less confident
D. social media keep them distant from each other
3.Calm Harm helps teenagers to_____.
A. keep a journal of their moods
B. manage their feeling of stress
C. reduce the urge to harm themselves
D. improve their self-identity and confidence
4.Experts believe that online help can______.
A. strengthen bonds between teenagers with mental illnesses
B. play a role in pushing forward the cutting-edge advance
C. replace face-to-face appointments with professionals
D. serve as a complement to face-to-face appointments
5.According to Anne Longfield, NHS child and adolescent mental health services ______.
A. have lived up to their expectations and promises
B. are reluctant to help teenagers with mental illnesses
C. will complete their ambitious forthcoming long-term plan
D. need to struggle to meet the increasing needs of teenagers
6.What does the passage mainly talk about?
A. The popularity of online apps in treating teenagers’ mental illnesses.
B. The contrasts between online help services and face-to-face support.
C. The influence of teenagers’ mental illnesses on online help services.
D. The drawbacks with the existing adolescent mental health services.
高三英语阅读理解困难题查看答案及解析
Scientists say a huge percentage of bird species are in danger because their habitats, or homelands, are disappearing.
Traditional migration paths take birds through countries that are not protecting locations to stop, rest and feed. The scientists studied the migration, or flight, paths, of almost 1,500 species and decided that 91 percent of them passed through dangerous areas. The major danger for migratory birds is development in human society. Building and paving has covered over nature where birds stop and feed as they move from one part of the world to another. For example, a bird called the bar-tailed godwit migrates from its breeding grounds in the Arctic flying all the way to the southern earth in Australia and New Zealand stopping at Yellow Sea mudflats in China along the way.
One of the scientists who worked on the study says “many of these critical sites have been taken up owing to urban, industrial and agricultural expansion.” The problem, according to researchers, is that many of these small birds die along their migration because they don’t have a safe place to eat and rest to restore their energy for the next part of their journey. Countries in North Africa, Central Asia and those along the coasts of East Asia are having the most difficult time conserving land. The scientists say these countries do not have enough areas that are safe for birds. In addition, many of the sanctuaries(避难所) are not wide enough to cover the paths of migratory birds.
One species that doesn’t exist any longer is the Eskimo curlew. “Our world gets poorer every time we lose a species,” one of the scientists says. The researchers say if one country might have preserved safe zones for migratory birds while a neighboring country might not, a bird might die.
One scientist who is not involved in the report says that while some habitats are changing, more work can be done to make urban areas safe for birds. He says small changes--- like planting more native plants or keeping cats out of areas birds would be likely to use--- could make a big difference.
1.Why is development in human society considered as the major danger for migratory birds?
A.Construction activities occupy birds’ paths.
B.Serious industrial pollution damages birds’ habitats.
C.Hunting activities happen more frequently.
D.Airplane flights directly harm birds’ safety.
2.What’s the current situation of protecting migratory birds?
A.Countries in East Asia don’t want to make any changes.
B.The progress still remains at the primary stage.
C.Some of the efforts of humans aren’t working well.
D.Not many countries are involved in the activities.
3.According to the researchers, __________.
A.governments need to work together and provide safe areas
B.safe zones in neighboring countries need to be combined together
C.more bird species will die out if they continue migrating through countries
D.human activities should give way to the birds when the migrating season comes
4.What can we know about the migratory birds according to the passage?
A.They always travel from the north to the south.
B.They need to stop during the migration to correct directions.
C.All of them are endangered because of lacking protection.
D.Some of them take rests or feed in cities.
5.What’s the main idea of the passage?
A.The migration of birds influences society development.
B.Migratory birds are dying from losing their homes.
C.Countries need to work together to protect migratory birds.
D.Protecting migratory birds is very necessary.
高三英语阅读理解中等难度题查看答案及解析
Scientists say a huge percentage of bird species are in danger because their habitats, or homelands, are disappearing.
Traditional migration paths take birds through countries that are not protecting the places for birds to stop, rest and feed. The scientists studied the migration or flight paths of almost 1,500 species. They decided that 91 percent of them passed through dangerous areas.
The major danger for migratory birds is development. Buildings and pavements have covered the places where birds stop and feed as they move from one part of the world to another. One of the scientists who worked on the study says “Many of these important places have been lost to land reclamation (开垦) because of urban, industrial and agricultural land expansion”.
The problem, according to scientists, is that many of these small birds die along their migration paths because they don’t have a safe place to feed and rest. There is no place to restore their energy for the next part of their journey. Countries in North Africa, Central Asia and those along the coasts of East Asia are having the most difficult time in protecting land. The scientists say these countries do not have enough areas that are safe for birds. One species that doesn’t exist now is the Eskimo curlew. “Our world gets poorer every time we lose a species,” one of the scientists says.
The researchers say countries need to work together and come up with safe stopping areas for birds that pass through their boundaries. For example, one country might have preserved safe zones for migrating birds. But a neighbor country might not. A bird might die.
One scientist who is not connected with the report tells Los Angeles Times that while some habitats are changing, more work can be done to make urban areas safe for birds.
He says small changes, like planting more native plants or keeping cats out of the areas birds would be likely to use, could make a big difference.
1.What mainly caused the disappearing of birds’ habitats ?
A.The decrease of awareness to protect birds. B.Natural disasters.
C.Overuse of land by human beings. D.The rising sea level.
2.What may be the main reason for many birds’ death on the way of migration?
A.Exhaustion and hunger. B.Beast attack on the ground.
C.Hunting of humans. D.The long journey.
3.According to the last two paragraphs, how should we protect the migrating birds?
A.By keeping fewer cats or dogs.
B.By restoring their destroyed habitats.
C.By helping change the birds’ migration paths.
D.By preserving the ecological environments on their migration paths.
4.What is the author’s purpose in writing the passage?
A.To tell us a huge percentage of bird species are in danger.
B.To analyze the reasons for disappearing of birds’ habitats.
C.To offer some solutions to the problem of birds’ habitats.
D.To call on people to protect the birds’ habitats.
高三英语阅读理解中等难度题查看答案及解析
If your job requires a lot of sitting, you could be putting your health at danger.
The American Journal of Epidemiology (流行病学) did a study in 2010 on the correlation (相互联系) between sitting and an individual's physical health. In the study, 53,440 working men and 69,776 working women were surveyed on their time spent sitting. The subjects were all disease free when employed. The researchers identified 11,307 deaths in men and 7,923 deaths in women during the 14-year follow-up.
The findings: Women who reported sitting for more than six hours per day had an approximately 40 higher all-cause death rate than those who reported less than three hours a day, and men had an approximately 20 higher death rate.
Well, now's a fine time to get this information. But why didn't they tell me this years ago? I would have planned on taking a more active job instead of the sedentary (坐着的) job of an editor.
So what can you do if you have to work for a living at a job that requires a lot of sitting? Here are some ideas:
Take frequent breaks. It is recommended that workers vary activities, change their position, and take short breaks every 20 minutes to rest muscles and increase blood circulation. Get a standing desk. Some studies have shown that working from an upright position may be better for health. The serious fitness people can even purchase a treadmill (跑步机) desk. It only goes about one mile per hour. Have a walking meeting. If your group is kind of small, going for a walk while discussing topics is a good alternative.
1.According to the text, the study in 2010 ______.
A. found men reporting shorter sitting time than women
B. surveyed more men than women on their daily sitting time
C. identified fewer deaths in men than in women during the 14-year follow-up
D. discovered correlation between sitting and physical health in men and in women
2.We can infer from the text that the author did not recommend ______.
A. using a standing desk B. resting one's muscles
C. quitting sedentary jobs D. taking a walk while discussing
3.What does the underlined word "subjects" in Paragraph 2 mean?
A. Things being discussed. B. People being studied.
C. Areas of knowledge being learned. D. Objects being painted.
4.What is the main idea of the text?
A. Your job could be killing you.
B. Working out leads to health risks.
C. Long-time sitting is positively associated with health.
D. A study on sitting time and physical health was completed.
高三英语阅读理解中等难度题查看答案及解析
.
Birds in cities are damaging their health by trying to sing above the noise of urban life．
New research shows that male birds are trying to compete against traffic and city sounds．They are now singing louder and at higher frequencies，which could harm their vocal cords．Some birds are choosing to sing at night instead of dudng the day．This makes them more open to attack and also creates stress and exhanstion．
“The difference between urban and rural birdsong is becoming so big that the two groups could now be unable to communicate．This could lead to inbreeding and a weak gene pool．”said Dr Sue Anne Zollinger of the University of St Andrews．
According to Zollingar,a bird group with a small geae pool might adapt less quickly to new diseases and could be wiped out．
A study of the dawn chorus found that birds in Berlin sang up to 14 decibels(分贝)louder than those in the forest．The birds sang loudest on weekday momings．
“By trying to sing over the sound of the city,birds are rising vocal injury,”said Zollinger．“All this puts the sarne strain on a bird’s vocal cords as when ahuman need to shout to be heard—except the birds are doing it all day,every day,”she said．
“Singing under such pressure means birds have less control over the sound they produce． Their songs may lose quality and become more rough—sounding．”said Zollinger．This could make them appear less attractive to female birds．
Mark Constantine，author of The Sound Approach to Birding，said：“Birdsong is important for our quality of life and has been proved to reduce our blood pressure．When we live in the centre of large，urban areas，we get stressed and it's extremely good to have birdsong around us．The impact on humans of birdsong is massive．It harms us，as well as the birds，if their songs become louder and simpler
53．Some birds in cities now choose to sing at night time because_______．
A．they want to attract more birds of opposite sex
B．they are more likely to be discovered by their family
C．they can’t adapt to the loud noises during the daytime
D．they have to frighten their enemy away
54．According to the passage，urban and rural birds might not be able to_______．
A．recognize each other
B communicate with each other
C live with each other
D．compete against each other
55．It requires greatest efforts for birds in cities to sing o_______．
A．Monday nights B．Wednesday afternoons
C．Saturday Evenings D．Friday momings
56．According to Dr Sue Anne Zollinger,birds singing louder might eventually lead to_______．
A．the harm done to man’s health
B the dying out of a species
C．the serious damage to the bird’s vocal cords
D．the decrease ofthe birth rate ofa bird group
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