People born in winter are more likely to suffer mental health disorders, according to a recent study carried out by researchers at Vanderbilt University in Tennessee.
Researchers raised baby mice from birth to weaning in either “summer” light cycles of 16 hours of light and 8 hours of dark or “winter” cycles of 8 hours of light and 16 hours of dark. A third group experienced 12 hours of light and 12 hours of dark a day.
Then half the winter mice stayed in a winter cycle, while half switched to a summer schedule. The summer mice were similarly split. The mice raised in equal periods of light and dark were split into three groups, one of which stayed on the 12hour schedule, one of which joined the winter group, and one of which joined the summer group.
After 28 days, it turns out the summerborn mice behaved the same whether they stayed on the summer cycle or switched to winter. But among the winterborn mice, those that stayed in winter kept their previous schedule, while those that switched to summer stayed active for an extra hour and a half, which indicates that mice born and weaned in a winter light cycle showed dramatic disruptions in their biological clocks.
The finding is the first of its kind in mammals, and it could explain why people born in winter are at higher risk for mental health disorders.
“We know that the biological clock regulates mood in humans,” said study researcher McMahon. “If the mechanism similar to the one that we found in mice operates in humans, then it could not only have an effect on a number of behavioral disorders, but also have a more general effect on personality.”
1.What’s the main idea of the text?
A.The biological clock regulates mood in humans.
B.Being born in winter has a negative effect on people’s mental health.
C.People born in winter are at higher risk for physical health disorders.
D.The length of light will influence the behavior of the mice.
2.The underlined word “split”(Paragraph 3) can be replaced by ________.
A.divided B.torn
C.hit D.ended
3.Who is probably the reader of the passage?
A.A jobhunter. B.A student in the university.
C.A newlymarried couple. D.An experienced dentist.
高一英语阅读理解中等难度题
People born in winter are more likely to suffer mental health disorders, according to a recent study carried out by researchers at Vanderbilt University in Tennessee.
Researchers raised baby mice from birth to weaning in either “summer” light cycles of 16 hours of light and 8 hours of dark or “winter” cycles of 8 hours of light and 16 hours of dark. A third group experienced 12 hours of light and 12 hours of dark a day.
Then half the winter mice stayed in a winter cycle, while half switched to a summer schedule. The summer mice were similarly split. The mice raised in equal periods of light and dark were split into three groups, one of which stayed on the 12hour schedule, one of which joined the winter group, and one of which joined the summer group.
After 28 days, it turns out the summerborn mice behaved the same whether they stayed on the summer cycle or switched to winter. But among the winterborn mice, those that stayed in winter kept their previous schedule, while those that switched to summer stayed active for an extra hour and a half, which indicates that mice born and weaned in a winter light cycle showed dramatic disruptions in their biological clocks.
The finding is the first of its kind in mammals, and it could explain why people born in winter are at higher risk for mental health disorders.
“We know that the biological clock regulates mood in humans,” said study researcher McMahon. “If the mechanism similar to the one that we found in mice operates in humans, then it could not only have an effect on a number of behavioral disorders, but also have a more general effect on personality.”
1.What’s the main idea of the text?
A.The biological clock regulates mood in humans.
B.Being born in winter has a negative effect on people’s mental health.
C.People born in winter are at higher risk for physical health disorders.
D.The length of light will influence the behavior of the mice.
2.The underlined word “split”(Paragraph 3) can be replaced by ________.
A.divided B.torn
C.hit D.ended
3.Who is probably the reader of the passage?
A.A jobhunter. B.A student in the university.
C.A newlymarried couple. D.An experienced dentist.
高一英语阅读理解中等难度题查看答案及解析
Short people, studies have shown , are more likely to have a stroke , suffer from high blood pressures and heart disease and be bullied in school .
Now, researchers report that short people—at least in the past—were also more likely to die at a younger age than their taller peers.
Their study, published in the Journal of Epidemiology (流行病学) and Community Health , found that short bones have something to do with short life for more than 1,000 years. The conclusion was based on 490 sets of adult skeletal(骨架) remains from an archaeological(考古学的) site in northeastern England , YC dating from the 9th century to about 1850 .
About 55% of men and 73% of women died before the age of 45, and 39% of men and 56% of women died before age 30. The risk of death before age 30 declined as bone length increased.
“This study provides evidence from an archaeological sample that long bone length is connected with age at death—those with smaller bones tend to die younger,” according to Dr. D.J. Gunnell of the university of Bristol in the UK and colleagues .
While it is not clear why short stature(身材) might be linked to earlier death , the researchers point out that height is an indicator of childhood nutrition, which may have long-lasting effect on health .
“Mechanism (身体结构) for height-mortality(死亡) associations in the past may differ from those today , for example , short stature may have increased the risk of death in childbirth and this may explain the higher risk of premature(未成熟的) mortality in women,” Gunnell and colleagues write .
“However, short bones, it would appear, have always been a marker of a short life,” the authors conclude.
1.The title of the passage should be________.
A．Short people and their taller peers
B．Men and women
C．Short stature and short life
D．Long life and short life
2.“An indicator” in Paragraph 6 means________.
A．a study B．a marker C．a risk D．an age
3.Which of the following statements is Not true according to the passage?
A．People with smaller bones were more likely to die younger.
B．Women were more likely to die at a young age.
C．Short-stature women bear higher risk of death in giving birth to babies.
D．Most people were more likely to die at the age of 30 in the past.
4.Short stature may be caused by________.
A．less childhood nutrition B．heart disease
C．some illnesses D．high blood pressure
5.The topic in this passage is probably connected with
A．space medicine B．sports medicine
C．social medicine D．industrial medicine
高一英语阅读理解中等难度题查看答案及解析
It's reported that over 300 million people in China are suffering from near-sightedness（近视）. As more children have got eye trouble, their parents hope to cure 1. disease by medicine or equipment or by correcting the way children read and sit. 2. in fact the care given to one's eyes should start with the exercise on one's feet. Three methods on how to protect are 3. follows:
Firstly, don't fasten your shoes too tightly. Try wearing loose shoes 4. walking bare-footed at home. When traveling, try wearing cloth shoes to make blood circulation (循环) easier.
5. , walking on tiptoes(脚尖) will help improve one's eyesight and prevent near-sightedness. Figures show that few ballet performers are near-sighted.
Thirdly, rope skipping also does good 6. one's eyesight. When skipping the rope, one has to react quickly, 7. excites the brain and the eyes. 8. foot exercises, it's good to pull one's ears. Pulling the ears 20 times is found to be an effective way to reduce the pressure on one's eyes.
高一英语语法填空中等难度题查看答案及解析
Night owls, people who stay up late and struggle to get out of bed in the morning, are more likely to die sooner than morning larks, the first study into their death rates has found.
New research by the University of Surrey and Northwestern University in the US found that people who naturally stay up late were 10 per cent more likely to die within the six-and-a-half-year study period compared to those who preferred the morning.
Researchers say that the ongoing stress of operating in a traditional 9-5 society was having a huge effect on millions of people and could be shortening their lives.
“This is a public health issue that can no longer be ignored,” said Malcolm von Schantz, a professor of chronobiology at the University of Surrey. “We should discuss allowing evening types to start and finish work later, where practical. And we need more research about how we can help evening types deal with the higher effort of keeping their body clock in line with sun time”.
The research involved nearly 500,000 Brits aged between 38 and 73 and found that around nine per cent considered themselves evening people, while 27 per cent identified as morning types.
In the new study, Scientists found owls had higher rates of diabetes, psychological disorders and neurological disorders. But the team has previously shown that whether someone is an owl or a lark is half genetic and half environment, meaning there may be ways to keep body clock issues under control.
The team recommends that night owls can help themselves by trying to become exposed to light early in the morning and not at night. Keeping regular bedtimes, maintaining a healthy lifestyle and trying to do tasks earlier in the day can help to reset body rhythms.
The study was published in the journal Chronobiology International.
1.What docs the underlined word “their” in Paragraph 3 refer to?
A. Night owls’ B. Morning larks
C. Researchers’ D. Scientists’
2.What can we know from Malcolm’s words?
A. People who stay up late may die before age 7.
B. Staying up late is no longer a public health issue.
C. When people should start work will be discussed later.
D. More research is needed to help solve the problem.
3.Which of the following is not suggested by the research team?
A. Get up early. B. Make full use of morning hours.
C. Get exposed to sunlight more often. D. Go to bed at a fixed time.
4.What is the author’s purpose in writing the text?
A. To tell the differences between two types of people.
B. To introduce readers the result of a new research.
C. To warn night owls of their bad genes and environments.
D. To argue morning larks usually live longer than night owls.
高一英语阅读理解中等难度题查看答案及解析
Researches show that the taller you are, the more _______ you are to suffer back pain.
A. likely B. possible C. perhaps D. probable
高一英语单项填空困难题查看答案及解析
Studies show that people are more _____ to suffer from back problems if they always sit before computer screens for long hours.
A．likely B．possible C．probable D．sure
高一英语单项填空中等难度题查看答案及解析
Studies indicate that people are more _______ to suffer from back problems if they sit before computer screens for long hours.
A. possible B. likely C. sure D. certain
高一英语单项填空中等难度题查看答案及解析
Studies show that people are more ______ to suffer from back problems if they always sit before computer screens for long hours.
| A．likely | B．possible | C．probable | D．sure |
高一英语单项填空中等难度题查看答案及解析
Studies show that people are more______ to suffer from back problems if they always sit before computer screens for long hours.
A. probable B. possible C. likely D. Maybe
高一英语单项填空中等难度题查看答案及解析
Studies show that people are more _______ to suffer from back problems if they always sit before computer screens for a long time.
A. likely B. possible C. sure D. probable
高一英语单项填空中等难度题查看答案及解析