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A new study suggests that the timing of a wound affects the speed at which it heals (治愈). Wounds suffered during the day heal around 60 percent faster than those at night.
The study showed how the bodies’ circadian rhythm (昼夜节奏) controlled the healing of wounds. 1. It tells our bodies when to wake up, eat and sleep in a circle — a series of activities that repeat themselves day after day. 2.
In the study, researchers found that skin cells moved faster to repair wounds suffered during the day. Their findings were published in the journal Science Translational Medicine.
The researchers examined cells, mice, and burn injury databases. 3.
Night-time burns — burns suffered between 8 o’clock at night and 8 o’clock the next morning — were 95 percent healed after an average of 28 days.
But after on average of 17 days, daytime burns — burns suffered between 8 o’clock in the morning and 8 at night — were 95 percent healed. 4.
Wounds are very costly to treat. 5. In Britain’s National Health Services, for example, such services cost around $6.56 billion per year. Experts say the high cost result, in part, from a lack of drugs that speed up the closure of wounds.
A.Each cycle lasts about 24 hours.
B.The circadian rhythm is like a clock or timer.
C.Specifically, their investigation found the following information.
D.The new study’s findings could help scientists develop better drugs.
E.In other words, night-time injuries took an average of 11 days longer to heal.
F.Worldwide, billions of dollars are spent every year on wound-treatment services.
G.That’s what a group of researchers from a university in Canada recently published.
高三英语七选五中等难度题查看答案及解析
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A new study suggests that the timing of a wound affects the speed at which it heals (治愈). Wounds suffered during the day heal around 60 percent faster than those at night.
The study showed how the bodies’ circadian rhythm (昼夜节奏) controlled the healing of wounds. 1. It tells our bodies when to wake up, eat and sleep in a circle---a series of activities that repeat themselves day after day. 2..
In the study, researchers found that skin cells moved faster to repair wounds suffered during the day Their findings were published in the journal Science Translational Medicine.
The researchers examined cells, mice, and burn injury databases. 3..
Night-time bums—bums suffered between 8 o’clock at night and 8 o’clock the next morning----were 95 percent healed after an average of 28 days.
But after on average of 17 days, daytime bums----burns suffered between 8 o’clock in the morning and 8 at night----were 95 percent healed. 4..
Wounds are very costly to treat. 5.. In Britain’s National Health Services, for example, such services cost around $6.56 billion per year. Experts say the high cost result, in part, from a lack of drugs that speed up the closure of wounds.
A. Each cycle lasts about 24 hours.
B. The circadian rhythm is like a clock or timer.
C. Specifically, their investigation found the following information.
D. The new study’s findings could help scientists develop better drugs.
E. In other words, night-time injuries took an average of 11 days longer to heal.
F. Worldwide, billions of dollars are spent every year on wound-treatment services.
G. That s what a group of researchers from a university in Canada recently published.
高三英语七选五中等难度题查看答案及解析
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A new study suggests that the timing of a wound affects the speed at which it heals（痊愈）. Wounds suffered during the day heal around 60 percent faster than those at night.
The study showed how the bodies circadian rhythm（昼夜节律）controlled the healing of
wounds. 1. It tells our bodies when to wake up, eat and sleep in a circle—a series of activities that repeat themselves day after day. 2.
In the study, researchers found that skin cells moved faster to repair wounds suffered during the day. Their findings were published in the journal Science Translational Medicine.
The researchers examined cells, mice, and burn injury databases. 3.
Night-time burns—burns suffered between 8 o’clock at night and 8 o’clock in the next morning—were 95 percent healed after an average of 28 days.
But after an average of 17 days, daytime burns -burns suffered between 8 o’clock in the morning and 8 at night -were 95 percent healed. 4.
Wounds are very costly to treat. 5. In Britain’s National Health Services, for example, such services cost around $6.56 billion per year. Experts say the high costs result, in part, from a lack of drugs that speed up the closure of wounds.
A. Each cycle lasts about 24 hours.
B. The circadian rhythm is like a clock or timer.
C. Specifically, their investigation found the following information:
D. The new study’s findings could help scientists develop better drugs.
E. In other words, nighttime injuries took an average of 11 days longer to heal.
F. Worldwide, billions of dollars are spent every year on wound-treatment services.
G. That’s what a group of researchers from a university in Canada recently published.
高三英语阅读理解中等难度题查看答案及解析
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A new study has found that social media could be affecting the sleep of young adults.
The study is a project of researchers at the University of Pittsburgh's School of Medicine. They found that young people who often use social media are more likely to suffer from sleep disorders than those who use social media less. The researchers say doctors should ask young adults about their use of social media when treating sleep issues.
“This is one of the first pieces of evidence that social media use really can influence your sleep.” said Jessica C Levenson. She was the lead author of a report on the study.
The researchers set out to examine the connection between social media use and sleep among young adults. Levenson noted that these young adults are possibly the first “generation to grow up with social media.”
The researchers wanted to find out how often young people used social media sites like Facebook, Twitter, Credit and Tumbler. For the study, they gave questionnaires to nearly 1,800 adults, aged 19 to 32. On average, members of the study group used social media sites one hour a day. They also "visited various social media 30 times per week.”
Thirty percent of the study's participants reported having serious problems with sleeping. Those people who used social media a lot were three times more likely to have a sleep disorder. And those who spent the most time on social media were two times as likely to suffer from sleep disturbances.
Levenson said the number of times a person visits social media is a better predictor of sleep problems than overall time spent on social media. If this is true, she adds, then practices that stop such behaviors may be the most effective.
1.What's the main idea of the text?
A. The researchers focus on social media.
B. The researchers manage to handle sleep problems.
C. Doctors treat young patients.
D. Social media affects sleep.
2.When treating sleep problems, doctors are advised to ________.
A. offer some advice about giving up social media
B. ask the patients about young adults’ use of social media
C. give young adults some medicine
D. ask about the patients' living conditions
3.How did the researchers mainly carry out the study?
A. By doing online research. B. By giving an example.
C. By collecting published data. D. By doing questionnaires.
4.What can be inferred from the text?
A. Men are more likely to suffer from a sleep disorder than women.
B. People often using social media are less likely to have a sleep disorder.
C. Using computers less helps avoid sleep problems completely.
D. Sleep problems can be determined by the times of a person visiting social media.
高三英语阅读理解中等难度题查看答案及解析
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B
Two new studies suggest that modern running shoes could increase the risk of injuries to runners.
One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine. Sometimes they wore running shoes. Other times they ran barefoot.
Researchers from the JKM Technologies Company in Virginia, the University of Virginia and the University of Colorado did the study.
They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.
The study appeared in the official scientific journal of the American Academy of Physical Medicine.
The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.
They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.
Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.
Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come
down first. Also, the heel generally has thick material under it to soften landings.
60. How many organizations are involved in the two studies?
A. Three. B. Four. C. Five. D. Six.
61. What can we learn from the text?
A. Most running shoes are designed improperly.
B. The design of high heels is better than that of running shoes.
C. No one will run with running shoes in the future.
D. Both of the studies are done in America.
62. Why do running shoes increase the risk of injuries to runners?
A. They could create stress.
B. They’re too big and heavy.
C. They can affect the way the runners land.
D. Their heels can soften landings.
63. How did the researchers do the two studies?
A. By practising. B. By comparing. C. By questioning. D. By reasoning.
高三英语阅读理解简单题查看答案及解析
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Two new studies suggest that modern running shoes could increase the risk of injuries to runners.
One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine (跑步机). Sometimes they wore running shoes. Other times they ran barefoot (赤脚).
Researchers from the JKM Technologies company in Virginia, the University of Virginia and the University of Colorado did the study.
They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.
The study appeared in the official scientific journal of The American Academy of Physical Medicine.
The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.
They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.
Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.
Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come down first. Also, the heel generally has thick material under it to soften landings.
But the researchers do not suggest that runners immediately start running barefoot. They say it takes some training. And there can be risks, like running when your feet are too cold to feel if you get injured.
The study was partly supported by Vibram, which makes a kind of footwear that it says is like running barefoot. The findings have gotten a lot of attention. But the researchers say there are many problems in the way the press has reported in their paper. So they have tried to explain their findings on a Harvard Website.
1.What’s the main idea of the passage?
A. Walking in high heels could cause less serious effects than running barefoot.
B. Two new discoveries encourage people to run in high heels.
C. Running in shoes is partly good to runners.
D. Two new studies prove running without shoes is beneficial to runners in most cases.
2.Which part of our body could be injured if we run in running shoes?
A. Toes. B. Hips. C. Feet. D. Legs.
3.What can we learn from the passage?
A. The way that we run by landing on the front or middle of our foot could avoid damaging our heel.
B. We should start running barefoot in no time.
C. Running in modern running shoes could cause more serious effects than running in high heels.
D. We won’t be injured if we run barefoot.
4.What is the writer’s attitude towards the use of the modern running shoes?
A. Persuasive. B. Negative. C. Objective. D. Supportive.
高三英语阅读理解中等难度题查看答案及解析
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Two new studies suggest that modem running shoes could increase the risk of injuries to runners.
One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine (跑步机). Sometimes they wore running shoes. Other times they ran barefoot.
Researchers from the JKM Technologies Company in Virginia, the University of Virginia and the University of Colorado did the study.
They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.
The study appeared in the official scientific journal of the American Academy of Physical Medicine.
The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.
They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.
Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.
Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come down first. Also, the heel generally has thick material under it to soften landings.
But the researchers do not suggest that runners immediately start running barefoot. They say it takes some training. And there can be risks, like running when your feet are too cold to feel if you get injured.
The study was partly supported by Vibram, which makes a kind of footwear that it says is like running barefoot. The findings have gotten a lot of attention. But the researchers say there are many problems in the way the press has reported in their paper. So they have tried to explain their findings on a Harvard Website.
1.What can we learn from the passage?
A. The way that we run by landing on the front or middle of our foot could avoid damaging our heel.
B. We should start running barefoot in no time.
C. Running in modem running shoes could have more serious effects than running in high heels.
D. We won’t be injured if we run barefoot.
2.How many organizations are involved in the two studies?
A. Three. B. Four.
C. Five. D. Six.
3.How did the researchers do the two studies?
A. By practising. B. By comparing.
C. By questioning. D. By reasoning.
4.What is the main idea of the passage?
A. Walking in high heels could have fewer serious effects than running barefoot.
B. Two new discoveries encourage people to run in high heels.
C. Running in shoes is partly good to runners.
D. Two new studies prove running without shoes is beneficial to runners in most cases.
高三英语阅读理解中等难度题查看答案及解析
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The results of an admittedly small but telling new study suggest that Medicare and other insures could be spending billions of dollars on screening(拍片检查)smokers for lung cancer that would be better spent on helping them quit and keeping others from starting．The new study indicated that screening more often supported smokers’ beliefs that they could safely continue to smoke．Most participants remained smoker because they believed screening could catch cancer early before it would threaten their lives.
“They compared how hard it was to quit smoking with how easy it was to be screened，”said Steven B. Zeliadt, the lead author of the study. "They engaged in magical thinking that now there's this wonderful painless external test that can save lives."
He and seven colleagues conducted the study of 37 current smokers who were offered lung cancer screening at Department of Veteran Affairs. After being screened and told the results. they were interviewed about their smoking-related health beliefs. For about half of those in whom cancer was not found. "Screening lowered their motivation for quitting." the team reported in July in JAMA Internal Medicine. The participants focused only on lung cancer, ignoring other potential harm of smoking. the researchers wrote.
A national study published four years ago found that annual CT screening for lung cancer three years in a row could reduce deaths among heavy smokers by about 20 percent.In an interview, Dr. Russell P. Harris, a preventive medicine specialist at the UNC-Chapel Hill. noted that "screening is being believed by people as an alternative to stopping smoking. But stopping smoking would have huge benefits for the individual and society." Furthermore, smoking causes many other cancers.
Dr. Harris agreed that rather than screening money is better spent on smoking prevention. He suggested providing free stop-smoking aids. sponsoring anti-smoking advertising and raising taxes on tobacco products and the age at which people are allowed to buy them.
1.What does the new study suggest?
A. Screening technology remains to be advanced and more effective.
B. Screening can find cancer in patients and give them timely treatment.
C. Helping people quit smoking is better than screening them for cancer.
D. Admitting smoking before screening can help one to stop smoking.
2.What effect can screening have on most smokers?
A. They will be scared by the result and quit smoking.
B. They will believe screening can catch cancer early and not quit.
C. They will lose hope and go on smoking.
D. They will know screening costs less than smoking.
3.What does the underlined word“they”（in Paragraph 5）refer to?
A. The smokers screened in the study.
B. Steven Zeliadt and his colleagues.
C. Dr. Harris and his patients.
D. The patients' smoking-related health beliefs
4.Which of the following can be a suitable title for the passage?
A. The Effect of Screening for Cancer Patients
B. Screening Alone Doesn’t Do the Work
C. Screening Has a Say in Cancer Detecting
D. Screening May Not Push Smokers to Quit
高三英语阅读理解困难题查看答案及解析
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Two new studies suggest that modern running shoes could increase the risk of injuries to runners.
One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine (跑步机). Sometimes they wore running shoes. Other times they ran barefoot (赤脚).
Researchers from the JKM Technologies company in Virginia, the University of Virginia and the University of Colorado did the study.
They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.
The study appeared in the official scientific journal of The American Academy of Physical Medicine.
The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.
They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.
Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.
Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of
the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come down first. Also, the heel generally has thick material under it to soften landings.But the researchers do not suggest that runners immediately start running barefoot. They say it takes some training. And there can be risks, like running when your feet are too cold to feel if you get injured.
The study was partly supported by Vibram, which makes a kind of footwear that it says is like running barefoot. The findings have gotten a lot of attention. But the researchers say there are many problems in the way the press has reported in their paper. So they have tried to explain their findings on a Harvard Website.
1.What’s the main idea of the passage?
A. Walking in high heels could cause less serious effects than running barefoot.
B. Two new discoveries encourage people to run in high heels.
C. Running in shoes is partly good to runners.
D. Two new studies prove running without shoes is beneficial to runners in most cases.
2.Which part of our body could be injured if we run in running shoes?
A. Toes. B. Hips. C. Feet. D. Legs.
3.What can we learn from the passage?
A. The way that we run by landing on the front or middle of our foot could avoid damaging our heel.
B. We should start running barefoot in no time.
C. Running in modern running shoes could cause more serious effects than running in high heels.
D. We won’t be injured if we run barefoot.
4.What is the writer’s attitude towards the use of the modern running shoes?
A. Persuasive. B. Negative. C. Objective. D. Supportive
5.In which section of the newspaper can you most probably read the article?
A. Business. B. Science. C. Health. D. Entertainment.
高三英语单项填空中等难度题查看答案及解析
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Two new studies suggest that modern running shoes could increase the risk of injuries to runners.
One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine. Sometimes they wore running shoes. Other times they ran barefoot.
Researchers from the JKM Technologies Company in Virginia, the University of Virginia and the University of Colorado did the study.
They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.
The study appeared in the official scientific journal of the American Academy of Physical Medicine.
The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.
They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.
Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.
Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come down first. Also, the heel generally has thick material under it to soften landings.
1.How many organizations are involved in the two studies?
A. Three. B. Four. C. Five. D. Six.
2.What can we learn from the text?
A. Most running shoes are designed improperly.
B. The design of high heels is better than that of running shoes.
C. No one will run with running shoes in the future.
D. Both of the studies are done in America.
3.Why do running shoes increase the risk of injuries to runners?
A. They could create stress.
B. They’re too big and heavy.
C. They can affect the way the runners land.
D. Their heels can soften landings.
4.How did the researchers do the two studies?
A. By practising. B. By comparing. C. By questioning. D. By reasoning.
高三英语阅读理解中等难度题查看答案及解析
the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come down first. Also, the heel generally has thick material under it to soften landings.