More than loo genes are related with increased risk of developing schizophrenia（精神分裂症）,bipolar disorder （躁郁症）and alcoholism（酗酒）,confirms a large study published in the recent issue of the British scientific journal Nature.
The world's largest study into the genetic basis of mental illnesses was led by researchers from British universities,including University College London (UCL),Cardiff University and King's College London (KCL).
Researchers believe that they are now much closer than before to understanding the complex biological causes, which make some people being at high risk of developing mental illnesses.They also believe that these findings could lead to new treatments.
The researchers analyzed the DNA of about 37,000 patients with schizophrenia,bipolar disorder or alcoholism, and compared the smallest genetic changes to those found in about 113,000 healthy people.They then identified about 128 independent genetic variants（变体）at 108 locations on the human chromosomes（染色体）that contribute significantly to developing schizophrenia—83 of these sites have never before been linked to the illness,according to scientists.
For example,people with the variant of the GRM3 gene,thought to be important in brain signaling,are around 2 to 3 times more likely to develop schizophrenia or alcohol dependence.The variant,which is found in approximately one in every 200 people,is also associated with a three times risk of developing bipolar disorder.
"We could be looking at the next big drug target for treating mental illness,"Professor David Curtis from UCL, co-author of the paper,said."The work opens up new ways to prevent and treat mental illnesses by revealing the mechanisms involved in their development."
1.What can we learn from Paragraph 3?
A. Researchers are disappointed at curing biological causes.
B. Researchers are worried about the complex biological causes.
C. Researchers have found the method of curing biological causes.
D. Researchers are confident for figuring out the complex biological causes.
2.According to Paragraph 4,the researchers found .
A. there are 37,000 patients with mental illnesses in the world
B. most of the sites have never before been linked to mental illnesses
C. there is little difference between the patients and the healthy people
D. the cause of mental illnesses has nothing to do with the genetic changes
3.We can learn from Paragraph 5 .
A. the variant of the GRM3 gene is important
B. the number of people with the variant of the GRM3 gene is large
C. the number of people with the variant of the GRM3 gene is small
D. people with the variant of the GRM3 gene aren't likely to suffer schizophrenia
4.What's the main topic discussed in the text?
A. The importance of gene variants.
B. The research of gene variants.
C. The cause of mental illnesses.
D. Gene variants linked to mental illnesses.
高一英语阅读理解极难题
More than loo genes are related with increased risk of developing schizophrenia（精神分裂症）,bipolar disorder （躁郁症）and alcoholism（酗酒）,confirms a large study published in the recent issue of the British scientific journal Nature.
The world's largest study into the genetic basis of mental illnesses was led by researchers from British universities,including University College London (UCL),Cardiff University and King's College London (KCL).
Researchers believe that they are now much closer than before to understanding the complex biological causes, which make some people being at high risk of developing mental illnesses.They also believe that these findings could lead to new treatments.
The researchers analyzed the DNA of about 37,000 patients with schizophrenia,bipolar disorder or alcoholism, and compared the smallest genetic changes to those found in about 113,000 healthy people.They then identified about 128 independent genetic variants（变体）at 108 locations on the human chromosomes（染色体）that contribute significantly to developing schizophrenia—83 of these sites have never before been linked to the illness,according to scientists.
For example,people with the variant of the GRM3 gene,thought to be important in brain signaling,are around 2 to 3 times more likely to develop schizophrenia or alcohol dependence.The variant,which is found in approximately one in every 200 people,is also associated with a three times risk of developing bipolar disorder.
"We could be looking at the next big drug target for treating mental illness,"Professor David Curtis from UCL, co-author of the paper,said."The work opens up new ways to prevent and treat mental illnesses by revealing the mechanisms involved in their development."
1.What can we learn from Paragraph 3?
A. Researchers are disappointed at curing biological causes.
B. Researchers are worried about the complex biological causes.
C. Researchers have found the method of curing biological causes.
D. Researchers are confident for figuring out the complex biological causes.
2.According to Paragraph 4,the researchers found .
A. there are 37,000 patients with mental illnesses in the world
B. most of the sites have never before been linked to mental illnesses
C. there is little difference between the patients and the healthy people
D. the cause of mental illnesses has nothing to do with the genetic changes
3.We can learn from Paragraph 5 .
A. the variant of the GRM3 gene is important
B. the number of people with the variant of the GRM3 gene is large
C. the number of people with the variant of the GRM3 gene is small
D. people with the variant of the GRM3 gene aren't likely to suffer schizophrenia
4.What's the main topic discussed in the text?
A. The importance of gene variants.
B. The research of gene variants.
C. The cause of mental illnesses.
D. Gene variants linked to mental illnesses.
高一英语阅读理解极难题查看答案及解析
Time is more precious than money for an increasing number of people who are choosing to live more with less—and liking it.
Kay and Charles Giddens, two lawyers, sold their home to start a B&B hotel. Four years later, the couple dishes out banana pancake breakfast, cleans toilets and serves homemade chocolate chip cookies to guests in a B&B hotel surrounded by trees on a hill known for colourful sunsets.
“Do I miss the freeways? Do I miss the traffic? Do I miss the stress? No,” says Ms. Giddens, “This is a phenomenon that’s fairly widespread. A lot of people are revaluating their lives and figuring out what they want to do. If their base is being damaged, what’s the payoff?”
Simple living ranges from cutting down on weeknight activities to sharing housing, living closer to work, avoiding shopping malls, borrowing books from the library instead of buying them, and taking a cut in pay to work at a more pleasurable job.
Vicki Robin, a writer, lives on a budget equal to a fifth of what she used to make. “You become conscious about where your money is going and how valuable it is,” Ms. Robin says, “You tend not to use things up. You cook at home rather than eat out…”
Janet Luhrs, a lawyer, quit her job after giving birth and leaving her daughter with a nanny for two weeks. “It was not the way I wanted to raise my kids,” she says, “Simplicity is not just about saving money; it’s about me sitting down every night with my kids to a candlelit dinner with classical music.”
Mrs. Luhrs now edits a magazine, Simple Living, which publishes tips on how to buy recycled furniture and shoes, organize potluck dinners instead of expensive receptions, and generally how to consume less.
Mrs. Luhrs explains, “It’s not about poverty. It’s about conscious living and creating the life you want. The less stuff you buy, the less money goes out of the door, and the less money you have to earn.”
1.Kay and Charles Giddens sold their home to ______.
A. pay off the debt
B. start a private hotel
C. cut down expenses
D. buy living necessities
2.Simple living includes ______.
A. building a home library
B. living in the countryside
C. enjoying a colourful night life
D. sharing housing with others
3.It can be learned from the passage that now Janet Luhrs ______.
A. spends more time with her kids
B. has an interest in classical music
C. works as a reporter of a magazine
D. helps people buy recycled clothes
高一英语阅读理解中等难度题查看答案及解析
There are more girls than boys in that school, with ________ of the students being girls.
| A．three fifth | B．three fifths | C．third five | D．thirds five |
高一英语单项填空简单题查看答案及解析
.
More Australians are overweight or obese than ever before, and the number is steadily increasing. Around 64 percent of men and 47 percent of women are carrying too much body fat. This means that the chances of obesity-related disorders, such as coronary heart disease(冠心病) and diabetes(糖尿病), is also on the rise. The popularity of crash dieting has caused many misunderstandings about weight loss. Most of these misunderstandings cause unhealthy weight loss behaviors.
A recent research of deaths in the United States from their National Health Nutrition Examination Survey suggests that being overweight may not increase your risk of dying. This finding is contrary to the past research that they thought the numbers of premature death(早死) linked to weight in the year 2000. The findings were that underweight and seriously obese people have an increased chance of dying compared with normal weight people. Interestingly, however, being overweight is related to a slightly lower chance of dying for your age. The effect of obesity on death rate may have reduced over time, perhaps because of improvements in public health and medical care. The authors say that body weight may not be such an important risk factor for premature death and that fitness, while smoking and too much fat in your diet may be more important.
65. If a person carries much fat, he or she _______________ .
A.knows how to keep healthy better than those who don’t
B.should lose weight as soon as possible to keep healthy
C.will surely suffer from both coronary heart disease and diabetes
D.might suffer from some diseases related to obesity
66. The underlined phrase “is contrary to” in the second paragraph probably means ___________.
A. agrees with B. disagrees with
C. proves D. combines
67. According to the recent research of deaths in America, ______________ .
A.underweight people will live longer than those overweight people
B.dying at an early age is connected with overweight
C.being overweight doesn’t necessary lead to premature deaths
D.being overweight is healthier than normal people
68. We can infer from the text that _____________ .
A.the writer wants to persuade people not to lose weight
B.misunderstandings about weight loss are more serious than ever
C.much progress has been made in public medical condition
D.the cause of premature deaths is heavy smoking
高一英语阅读理解简单题查看答案及解析
People who are slightly overweight or mildly obese(肥胖的) have a lower risk of early death than normal weight individuals(个人;个体), according to a new analysis of nearly 100 international studies.
The studies, most conducted within the past decade, included about three million adults from around the world. The result of these studies by researchers at the National Center for Health Statistics in Maryland, part of the U.S. Centers for Disease Control and Prevention, shows that slightly overweight or obese people were six percent less likely to die from all causes compared to people of normal weight. But the researchers found that seriously obese individuals were still at a 30 percent greater risk of death compared to healthy-weight individuals.
Study lead author Katherine Flegal says she was not surprised that overweight people would not have a higher death risk. “Because we'd actually already read a lot of this literature and realized that death rates for overweight would be at least not higher than normal[weight," she said. “I guess l was a little bit surprised that it was definitely lower. And l was also surprised that the lower rates of obesity didn't seem to differ from normal weight."
But Flegal stresses the difference in death rates appear to be small between normal-weight people and overweight and mildly obese individuals.
The finding by Flegal and colleagues have raised new questions about the reliability(可靠性)of the so-called "body mass index" or BMI, a measurement of body fat as a ratio(比例，比率)of height to weight, that has become popular in recent years among public health experts to measure potential health risks.
But Heymsfield warns that individuals should not conclude that it's okay to put on extra kilograms, since being at a healthy weight lowers the risk for heart disease and diabetes.
1.Katherine Flegal feels surprised at the fact that____.
A. obese people have higher death rates
B. slightly obese people have lower death rates
C. obese people tend to die early
D. death rates have nothing to do with body weight
2.What do we learn from the fifth paragraph?
A. BMI may not be so reliable.
B. The study provides further evidence for BMI.
C. BMI tells nothing about potential health risks.
D. BMI has been much questioned recently.
3.What can we conclude from the passage'?
A. It's OK to put on extra weight.
B. It doesn't matter if you are slightly obese.
C. Obese people are much healthier.
D. Body weight has nothing to do with death rates.
4.What topic does the passage mainly deal with?
A. Technology. B. Dieting. C. Health. D. Death.
高一英语阅读理解中等难度题查看答案及解析
With computers becoming more and more popular in China, Chinese people are increasingly relying on computer keyboards to input Chinese characters (汉字）. But if they use the computer too much, they may end up forgetting the exact strokes（笔画）of each Chinese character when writing on paper. Experts suggest people, especially students, write by hand more.
Do you write by hand more or type more? In Beijing, students start using a computer as early as primary school. And computer dependence is more wide-spread among university students. Almost all their writings are typed on a computer.
All the students interviewed say they usually use a computer.
It’s faster and easier to correct if using a computer. And that’s why computers are being used more and more often to modern education. But when people are taking stock in computers increasingly, problems appear.
“When I’m writing with a pen, I find I often can’t remember how to write a character, though I feel I’m familiar with it.”
“I’m not in the mood to write when faced with a pen and paper.”
Many students don’t feel this is something to worry about. Now that it’s more convenient and efficient to write on a computer, why bother to handwrite?
Many educators think differently. Shi Liwei, the headmaster of a famous primary school in the capital said “Chinese characters enjoy both practical and aesthetic(审美的) value. But those characters typed with computer keyboards only maintain their practical value. All the artistic beauty of the characters is lost. And handwriting contains the writer’s emotion. Through one’s handwriting, people can get to know one’s thinking and personality. Beautiful writing will give people a better first impression of them.”
To encourage students to handwrite more, many primary schools in Beijing have made writing classes compulsory(必修的)and in universities, some professors are asking students to turn in their homework and essays written by hand.
1.Which of the following can BEST serve as the title of the passage?
A. To Type or To Hand Write
B. The Importance of Handwriting and Typing
C. Writing By Computer Will Replace Writing By Hand
D. Practical and Aesthetic Value of Chinese Characters
2.The students interviewed prefer to write using a computer mainly because .
A. they can correct the mistakes they make quickly and conveniently
B. they are usually asked to e-mail their homework and essays
C. they find it not easy to remember how to write a character
D. computers have become a trend and fashion in China
3.The underlined expression “taking stock in” in the fourth paragraph probably means .
A. getting bored with B. getting dependent on
C. becoming upset about D. looking forward to
4.We can draw the conclusion from the passage that .
A. more and more students will give up writing on a computer
B. writing by hand will give way to typing by computer one day
C. more and more students will pay attention to handwriting
D. the typed article better expresses one’s emotion and quality
高一英语阅读理解中等难度题查看答案及解析
With more and more cars on the road, traffic jams are inevitable. Traffic jams can lead to increased accidents as there are more cars, with more people trying to get to their destination, all the while getting worse. Although it’s impossible to avoid traffic jams altogether, there are some tips you can follow to reduce the amount of time on the road.
Check for traffic jams before you leave. You can listen to the radio for traffic news, or check on the Internet to get up-to-minute information on traffic. If the route you want to take is heavy with traffic, you can choose another.
Look for a different route permanently. Most traffic jams occur on busy roads. Using country roads could see you avoiding a lot of traffic. Although the distance you may have to travel is further, it can work out quicker.
Set your car radio to receive traffic bulletins. Many new car stereo systems (汽车音响系统) are equipped with a radio system by which you can hear the traffic channel. This way you can get the latest traffic information and change your journey if necessary.
_____________________________. Most traffic jams usually occur during rush hour, so try to avoid this time period if possible. Some jobs offer flexible working hours so that you can travel to work outside of rush hour. Some jobs even allow you to work at home so as to avoid commuting altogether. Ask your manager to see what you can do if traffic is a problem for you.
Use public transport alternatives where available. The easiest way to avoid traffic jams is to take buses or the underground instead of driving your own car. Not only will you avoid traffic jams but you will most likely be saving money as the cost of motoring rises.
1.The underlined word “inevitable” in Paragraph 1 probably means _____.
A．hard to accept B．impossible to avoid
C．getting less serious D．seen everywhere
2.The author wrote the text in order to ______.
A．explain why there are traffic jams B．tell us the negative effects of traffic jams
C．tell us what we can do on the road D．tell us how to save time on the road
3.To get the latest traffic information, you could do the following EXCEPT ______.
A．surfing the Internet B．listening to the radio for traffic news
C．listening to the traffic channel D．turning to other drivers for information
4.Which of the following can be put in the blank in the text?
A．Choose a job that has flexible working hours B．Try traveling at different time
C．Make friends with your manager D．Work from home
高一英语阅读理解中等难度题查看答案及解析
With more and more cars on the road, traffic jams are inevitable. Traffic jams can lead to increased accidents as there are more cars, with more people trying to get to their destination, all the while getting worse. Although it’s impossible to avoid traffic jams altogether, there are some tips you can follow to reduce the amount of time on the road.
Check for traffic jams before you leave. You can listen to the radio for traffic news, or check on the Internet to get up-to-minute information on traffic. If the route you want to take is heavy with traffic, you can choose another.
Look for a different route all the time. Most traffic jams happen on busy roads. Using country roads could see you avoiding a lot of traffic. Although the distance you may have to travel is further, it can work out quicker.
Set your car radio to receive traffic bulletins. Many new car stereo systems (汽车音响系 统) are equipped with a radio system by which you can hear the traffic channel. This way you can get the latest traffic information and change your journey if necessary.
__________ Most traffic jams usually occur during rush hour, so try to avoid this time period if possible. Some jobs offer flexible working hours so that you can travel to work outside of rush hour. Some jobs even allow you to work at home so as to avoid moving altogether. Ask your manager to see what you can do if traffic is a problem for you.
Use public transport alternatives where available. The easiest way to avoid traffic jams is to take buses or the underground instead of driving your own car. Not only will you avoid traffic jams but you will most likely be saving money as the cost of motoring rises.
1.The underlined word “inevitable” in Paragraph 1 probably means _____.
A. hard to accept B. impossible to avoid
C. getting less serious D. seen everywhere
2.The author wrote the text in order to ______.
A. explain why there are traffic jams
B. tell us how to save time on the road
C. tell us what we can do on the road
D. tell us the negative effects of traffic jams
3.To get the latest traffic information, you could do the following EXCEPT ______.
A. surfing the Internet
B. listening to the radio for traffic news
C. listening to the traffic channel
D. turning to other drivers for information
4.Which of the following can be put in the blank in the text?
A. Choose a job that has flexible working hours
B. Make friends with your manager
C. Try traveling at different time
D. Work from home
5.According to the author, we should use public transport because __________.
A. it is cheaper and can avoid traffic jams
B. it is useful to us
C. it is environmentally-friendly
D. it is completely free from traffic jams
高一英语阅读理解中等难度题查看答案及解析
With economy rapidly _______,people are more and more concerned about health.
A.increased B.to increase C.increasing D.having increased
高一英语单项填空中等难度题查看答案及解析
（题文）(2016•天津) ___________ the average age of the population increases, there are more and more old people to care for.
A. Unless B. Until
C. As D. While
高一英语单项填空中等难度题查看答案及解析