Motherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones(荷尔蒙) , U.S. researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may beprotected against diseases such as Alzheimer’s(早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
“Our research shows that the hormones of pregnancy(怀孕) are protecting the brain, including estrogen(雌激素),which we know has many neuroprotective (保护神经的) effects,” Kinsley said. “It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,”said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations(改变) to the brain.”
1.How do scientists know “Motherhood may make women smarter”?
A. Some researchers have told them.
B. Many women say so.
C. They know it by experimenting on rats.
D. They know it through their own experience.
2.What can protect the brain of a woman according to the passage?
A. Estrogen.
B. The hormones of pregnancy.
C. More exercise.
D. Taking care of children.
3.Which title is the best for this passage?
A. Do You Want to Be Smarter?
B. Motherhood Makes Women Smarter
C. Mysterious Hormones
D. An Important Study
高二英语阅读理解中等难度题
Motherhood may make women smarter and may help prevent dementia (痴呆) in old age by bathing the brain in protective hormones (荷尔蒙) , U.S. researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s (早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
“Our research shows that the hormones of pregnancy are protecting the brain, including estrogen (雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.
“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”
Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations (改变) to the brain.”
1. How do scientists know “Motherhood may make women smarter”?
A. Some researchers have told them.
B. Many women say so.
C. They know it by experimenting on rats.
D. They know it through their own experience.
2. What does the phrase “litters of pups” mean in the second paragraph?
A. Baby rats. B. Animals. C. Old rats. D. Grown-up rats.
3. What can protect the brain of a woman according to the passage?
A. Estrogen. B. The hormones of pregnancy.
C. More exercise. D. Taking care of children.
4.“It’s rat data but humans are mammals just like these animals are mammals.” What does the sentence suggest?
A. The experiments on the rats have nothing to do with humans.
B. The experiments on the rats are very important for animals.
C. The experiments on the rats are much the same on humans.
D. The experiments on the rats are much the same on other animals.
高二英语阅读理解中等难度题查看答案及解析
Motherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones(荷尔蒙) , U.S. researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may beprotected against diseases such as Alzheimer’s(早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
“Our research shows that the hormones of pregnancy(怀孕) are protecting the brain, including estrogen(雌激素),which we know has many neuroprotective (保护神经的) effects,” Kinsley said. “It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,”said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations(改变) to the brain.”
1.How do scientists know “Motherhood may make women smarter”?
A. Some researchers have told them.
B. Many women say so.
C. They know it by experimenting on rats.
D. They know it through their own experience.
2.What can protect the brain of a woman according to the passage?
A. Estrogen.
B. The hormones of pregnancy.
C. More exercise.
D. Taking care of children.
3.Which title is the best for this passage?
A. Do You Want to Be Smarter?
B. Motherhood Makes Women Smarter
C. Mysterious Hormones
D. An Important Study
高二英语阅读理解中等难度题查看答案及解析
As a Tony promised to help Claire make herself smarter and her home more graceful.
A. firm B. firework C. favour D. fax
高二英语单项填空中等难度题查看答案及解析
While it’s books that make a library, being in lovely surroundings may provide inspiration and help you work a little bit harder. Here are some of the coolest libraries of the world.
Library of Birmingham – Birmingham, U.K.
The new Library of Birmingham is said to be not only Britain’s biggest public library, but also the largest in Europe. Designed by Dutch architects, this replacement for the Birmingham Central Library was opened in 2013 and has a wealth of resources within its walls, including adults and kids’ libraries, music collections, a Shakespeare Memorial Room, and even a gym room. Gardens crown the roof, while the changing seasons bring variations in the shadows and reflections inside.
National Library of France – Paris, France
The National Library of France, which now contains an astonishing collection of 30 million, dates back to the 14th century and this royal library was set up at the Louvre by King Charles V. The Library was moved to Rue de Richelieu site in 1868, with major design work carried out by French architects Henri Labrouste and, following his death, Jean-Louis Pascal. Here, the reading rooms are elegance itself. There are more than just books to be found.
State Library of New South Wales – Sydney, Australia
The public State Library of New South Wales holds the honor of being the oldest institution of its kind in Australia. It was originally set up as the Australian Subscription Library in 1826, but it wasn’t until 1942 that its permanent home was ready. Designed by Sydney architect Walter Liberty Vernon and completed in 1910, the magnificent sandstone Mitchell Wing is one of the architectural highlights.
Seattle Central Library – Seattle, Washington, USA
Seattle Central Library’s distinctive design ensures it stands out. Architect Rem Koolhaas is one of the names attached to its design. Architects sought to envelop the 11-story building with “a layer of transparency”, using a skin of glass and metal. The finished article houses about 1.45 million books and other things, as well as more than 400 computers available for public use. The building, which opened in 2004, was included on the American Institute of Architects’ list of America’s 150 favorite buildings in 2007.
1.Which of the following library has the longest history?
A. Library of Birmingham B. National Library of France
C. State Library of New South Wales D. Seattle Central Library
2.What can you do in Library of Birmingham?
A. Attend a concert. B. Act a play.
C. Take some exercise. D. Enjoy new technology.
3.What do National Library of France and Seattle Central Library have in common?
A. They have computers available. B. They were moved to a new place.
C. They won awards for architecture. D. They were designed by more than one person.
高二英语阅读理解简单题查看答案及解析
Less TV Reduce Kids Weight
PALO AITO, California—“Switching off the television may help prevent children from getting fatter—even if they do not change their diet or increase the amount they exercise,” US researchers said last week.
A study of 192 third and fourth grades, generally aged eight and nine, found that children who cut the number of hours spent watching television gained nearly two pounds (0.91 kg) less over a one-year period than those who did not change their television diet.
“The findings are important because they show that weight loss can only be the result of a reduction in television viewing and not any other activity,” said Thomas Robinson, a pediatrician (儿科专家)at Stanford University.
“ American children spend an average of more than four hours per day watching television and videos or playing games, and rates of childhood being very fat have doubled over the past 20 years,” Robinson said.
In the study, presented this week to the Pediatric Academic Societies’ annual meeting in San Francisco, the researchers persuaded about 100 of the students to reduce their television viewing by one-quarter to one-third.
Children watching fewer hours of television showed a significantly smaller increase in waist size and had less body fat than other students who continue their normal television viewing, even though neither group ate a special diet nor took part in any extra exercise.
“One explanation for the weight loss could be the children unstuck to the television may simply have been moving around and burning off calories,” Robinson said.
“Another reason might be due to eating fewer meals in front of the television. Some studies have suggested that eating in front of the TV encourages people to eat more,” Robinson added.
1. The author tries to tell us in the first two paragraphs that ____.
A.children will get fatter if they eat too much. |
B.children will get thinner if they eat less. |
C.children will get fatter if they spend less time watching TV. |
D.children will get fatter if they spend more time watching TV. |
2. According to the passage, the time American children usually spend on watching TV ____.
A.is more than four hours a day. | B.is less than four hours a day. |
C.doubled in the last twenty years. | D.is more than on any other activities. |
3.Which of the following is right ?
A.Children usually eat fewer while watching TV. |
B.Children usually eat more while watching TV. |
C.Children eat the same amount of meals while watching TV. |
D.Children usually eat nothing while watching TV. |
4.Why can watching TV increase kids’ weight according to the passage ?
A.They usually eat more while watching TV. |
B.They burn off fewer calories. |
C.They change their diet while watching TV. |
D.Both A and B |
高二英语阅读理解简单题查看答案及解析
There are so many interesting and creative hobbies that can improve your life and make you smarter.
1. As the saying goes, reading gives us somewhere to go when we have to stay where we are. It enriches your knowledge and makes you feel better about yourself.
Learning a new language is a most unique and challenging hobby. It enables your brain to perform better, improves your memory and reduces the risk of brain decline. 2.
Playing chess makes you smarter by exercising both sides of your brain. 3. And it helps improve your memory and builds your self-confidence.
Writing makes your brain work. 4. Writing things down can improve your emotions and your ability to communicate with others and it will make you a more interesting person.
Exercising regularly keeps both your body and your brain functioning. A good blood circulation in your body means a good blood circulation of your brain, which means an increased brain function. 5.
Learning to play the piano or any other musical instrument teaches you patience and perseverance because it takes a lot of effort and a lot of time.
A. It teaches you to think.
B. Smiling will make you healthier and look cooler.
C. Moreover, a new language means new opportunities.
D. Positive thinking can help you to do your best each day.
E. Besides, exercising reduces stress and helps you sleep better.
F. Playing the game raises your IQ and encourages your creativity.
G. Reading teaches you new things about new places and new people.
高二英语七选五简单题查看答案及解析
A robot created by Washington State University (WSU) scientists could help elderly people with dementia (痴呆) and other limitations live independently in their own homes.
The Robot Activity Support System, or RAS, uses sensors installed in a WSU smart home to determine where its residents are, what they are doing and when they need assistance with daily activities. It navigates (定位) through rooms and around obstacles to find people on its own, provides video instructions on how to do simple tasks and can even lead its owner to objects like their medication or a snack in the kitchen.
“RAS combines the convenience of a mobile robot with the activity detection technology of a WSU smart home to provide assistance in the moment, as the need for help is detected,” said Bryan Minor, a postdoctoral researcher in the WSU School of Electrical Engineering and Computer Science.
Currently, an estimated 50 percent of adults over the age of 85 need assistance with every day activities such as preparing meals and taking medication and the annual cost for this assistance in the US is nearly $2 trillion. With the number of adults over 85 expected to triple by 2050, researchers hope that technologies like RAS and the WSU smart home will relieve some of the financial strain on the healthcare system by making it easier for older adults to live alone.
RAS is the first robot researchers have tried to incorporate into their smart home environment. They recently published a study in the journal Cognitive Systems Research that demonstrates how RAS could make life easier for older adults struggling to live independently.
“While we are still in an early stage of development, our initial results with RAS have been promising,” Minor said. “The next step in the research will be to test RAS’ performance with a group of older adults to get a better idea of what prompts, video reminders and other preferences they have regarding the robot.”
1.How does RAS serve elderly people?
A.Through sensors. B.Through objects.
C.Through a mobile robot. D.Through their daily activities.
2.What can we know about RAS?
A.It is the first robot used in daily life. B.Its function remains to be tested.
C.It can locate people and do any task. D.It can cook for owners on its own.
3.What’s Minor’s attitude toward the future of RAS?
A.Doubtful. B.Negative.
C.Optimistic. D.Uncertain.
4.What can be a suitable title for the text?
A.Elderly people leave the nursing home.
B.Smart Home Tests first elder-Care robot.
C.RAS, the first robot to make home smart.
D.Older adults have benefited from RAS.
高二英语阅读理解困难题查看答案及解析
1.__ They provide him wood and other products; they give him shade; and they help to prevent drought and floods.
2.___ In his eagerness to draw quick profit from the trees, he has cut them down in large numbers.
Two thousand years ago, a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire but, without its trees, its soil became bare and poor. When the empire fell to pieces, the country found itself faced by floods and starvation.
Even where a government realizes the importance of a plentiful supply of trees, it is difficult sometimes to make the people realize this. 3.__ So unless the government has a good system of control, or can educate the people, the forests slowly disappear.
4.___ The results are even more serious: for where there are trees, their roots break the soil up, allowing the rain to sink in, and also hold the soil. 5.___ But where there are no trees, the rainfalls on hard ground and flows away on the surface, and this causes floods and the rain carries away the rich topsoil in which crops grow. When all the topsoil is gone, nothing remains but worthless desert.
A. This does not only mean that there will be fewer trees.
B. Trees are useful to man in three very important ways.
C. Unfortunately, in many parts of the world, man has not realized the third of these services is the most important.
D. This prevent the soil from being washed away.
E. If there were no more trees, something terrible would happen.
F. However, a lot of trees are being cut down.
G. They cut down the trees but are too careless to plant and look after new trees.
高二英语其他题中等难度题查看答案及解析
阅读下面的短文,然后按照要求写一篇150词左右的英语短文。
The suitable clothes can make men handsome and make women attractive, so more and more people spend much money on clothes.
Thanks to the fashion designers, many different styles of clothes appear every day. If you go to a big store or walk on the street, you'll find many fashionable clothes easily.
Of course everyone has his or her own way of dressing. Perhaps the most popular clothes are casual ones. They're made of cotton and there are many types of designs. They feel comfortable, so men and women as well as the young and the old enjoy wearing them. Some casual clothes don't need dry-cleaning, so they can save us money.
Not everyone can wear casual clothes at any time and any place. Some people have to wear uniforms when they're at work such as police officers, soldiers, firefighters and pilots. Uniforms can not only protect them but also show good discipline.
It doesn't matter what kinds of clothes you wear. It's important for everyone to dress neatly and suitable (合适地).
【写作内容】
1.以约30个词概括这篇短文的内容要点。
2.以约120个词就我们现实生活中衣着的话题谈你的想法,内容包括:
(1)你个人对待衣着重要性的理解;
(2)举例说明你对衣服潮流(fashion)的看法;
(3)你怎样看待身边部分同学对名牌服装的追求。
【写作要求】
1.可以使用实例来支持你的论点,也可以参照阅读材料的内容,但不得直接引用原文中的句子;
2.作文中不能出现真实姓名和学校名称。
【评分标准】
概括准确,语言规范,内容合适,语篇连贯。
高二英语书面表达中等难度题查看答案及解析
Working women make up nearly half of the U.S. workforce, and 51 percent of professional workers, like doctors, lawyers, nurses and accountants, are female. While climbing the career ladder can be rewarding, it often comes with one big downside: weight gain!
New research published this week in the International Journal of Obesity shows that working women are more likely to be overweight, and the more you work, the more pounds you're likely to pile on. Like many women, I work..., a lot! As a selfemployed nutrition communications specialist, I sit at my desk, in front of a computer, for hours on end. Sitting alone is one of the worst things you can do for your health, and it's directly linked to being overweight and increased fatness, so the fact that women in the workforce gain weight isn't that surprising. If you work, you have less time to move around. Obesity researchers are revealing many other ways that employment is harmful to your diet and waistline.
In the International Journal of Obesity study, some 9, 276 Australian women aged 45-50 had their body weight and employment status monitored for two years. Results? Those who worked more than 35 hours were likely to gain weight compared to those who worked fewer hours or were out of the workforce. What' s more, the more hours a woman worked in a week, the more weight she gained.
The authors of the Australian study attribute weight gain among working women to inactivity, lack of time for food preparation, more use of prepared foods, high levels of stress, lack of sleep and consuming more alcohol. I'll also add in travel,meals eaten out and working at night as other factors that I can find to make balancing work with a healthy diet a challenge.
1.The text above is probably taken from__________.
A.a sports report B.a fashion journal
C.a health and fitness magazine D.an advertisement post
2.A woman who works as an accountant is more likely to__________.
A.gain more weight B.have more time to move around
C.work a full time job D.keep a balanced diet
3.Which is NOT the cause of working women weight gaining according to the passage?
A.Lacking time for food preparation. B.Using more prepared food.
C.Consuming too much alcohol. D.Taking part in more activities.
4.What can be a suitable title for the test?
A.Less activity leads to fat. B.Ways of gaining weight.
C.Effects of weight gaining. D.Working women more likely pile on pounds.
高二英语阅读理解中等难度题查看答案及解析